eBook Chapters

8.1 Introduction

Giving people and companies access to basic financial services is known as f inancial inclusion, and it has long been a problem on a global scale. Millions of people worldwide still lack access to basic banking services like savings accounts, loans, and insurance and are either underbanked or unbanked altogether. Fintech, or financial technology, has emerged as a key player in resolving this problem by providing creative ways to improve banking service accessibility and advance financial inclusion.

One of the main forces behind promoting equitable economic growth and lowering poverty is financial inclusion.

Introduction

An agricultural project is defined as an investment activity where financial resources are expended to create the capital assets with an anticipation of benefits over time. In other words, it is an activity where money is spent to realize the expected returns and requires planning, financing and implementation as a unit. In fact, the whole complex of activities using resources to gain benefits constitute the agricultural projects. The agricultural project may include projects such as irrigation, dairy, poultry, piggery, rural credit, social forestry, land reclamation/leveling, rural development projects, etc. Moreover, the dividing line between an “investment “ and a “production” expenditure is an agricultural project.  For instance, the fertilizers, pesticides, seeds, etc. are called investments where returns are realized over the service period of asset. Likewise, the plantation of fruit crops though constitute an investment yet the paddy transplanting as production expense, i.e., the difference exists in time span to grow plants.

Financing the Business

The capital of a business consists of those funds used to start and run the business. Capital may be of two types: fixed and working.

Fixed capital refers to items bought once and used for a long period of time. This includes such things as building, fixtures and equipment. Fixed Capital does not vary with the level of output.

Working capital is the type of funds, which is needed for carrying out day-to-day operations of the business smoothly. The management of working capital is no less important than the management of ‘long term‘ financial investment. Working Capital varies with the level of output.

9.1 How to read a Balance Sheet

We know business is mainly concerned with the financial activities. In order to ascertain the financial status of the business every enterprise prepares certain statements, known as financial statements. Financial statements are mainly prepared for decision making purposes. But the information as is provided in the financial statements is not adequately helpful in drawing a meaningful conclusion. Thus, an effective analysis and interpretation of financial statements is required.

Analysis means establishing a meaningful relationship between various items of the two financial statements with each other in such a way that a conclusion is drawn. By financial statements we mean two statements:

Introduction

Since the dawn of agriculture, humans have bartered and traded goods and services. Financial markets represent a sophisticated evolution of this basic need to exchange value. Today, they act as the invisible backbone of economies, playing a critical role in channelling resources, facilitating growth, and enabling price discovery. Financial markets fulfil three key functions that keep economies humming. Firstly, they facilitate capital allocation. Imagine a farmer with surplus earnings (savings) from a bountiful harvest (Schar, 2021). In the absence of financial markets, these savings may sit idle. But financial markets connect this farmer with businesses seeking investment capital to expand operations or develop new technologies. According to a 2023 World Bank report, global gross savings reached a staggering $36 trillion, highlighting the immense pool of resources financial markets can tap. This allocation function goes a step further by matching risk tolerance with investment opportunities. A conservative investor seeking stability might favour government bonds, while a risk-tolerant entrepreneur may invest in a promising startup. Financial markets offer instruments to cater to diverse risk appetites, ensuring a healthy balance between stability and growth (Umar et al?, 2022).

Financial markets don’t just connect savers and investors; they also mobilize capital for economic growth. Businesses seeking to expand can raise funds through stock offerings, allowing them to build new factories, hire additional staff and develop innovative products. A 2022 study by the International Finance Corporation found that small and medium-sized businesses in emerging markets face a financing gap of over $5 trillion. Financial markets play a vital role in bridging this gap, fostering business expansion, and driving long-term economic prosperity. Furthermore, financial markets enable governments to finance critical infrastructure projects like roads, bridges, and public transportation. By issuing bonds, governments can raise vast sums of capital to invest in projects that benefit society (Pagano, 1993).

Abstract
Electricity is one of the most important input factors for the economic development of the country. There is huge and increasing demand of electricity in India and it is continuously increasing with the countries corporate and economic growth. The Indian power sector has responded significantly and made significant progress in reducing the gap between demand and supply. Indian power sector offers one of the highest growth potential to players in this industry. However, this is subject to some challenges like to generate more power and to generate and distribute power efficiently and at minimum cost. The present study covers five selected companies operating in power sector for the financial performance using ratio analysis and ANOVA. Out of selected companies NTPC performance is better than other companies but overall Indian power sector needs to reduce too much dependence on coal and needs to generate more power availability, quality and reliability for successful future and growth of the country. 

Introduction

Finance is vital to entrepreneurship. With limited resources starting a business is a challenge. Earlier generations of entrepreneurs establishing a business were different. They first guaranteed that money would be available to start—the business. So, if one wanted to build up a unit for a business, one would undertake market research and then approach the bank. Then activities like product development, ordering equipment, determining the site, acquiring land for the facility, what government policies are applicable etc., were considered. Before starting a business, an entrepreneur considers these factors. That was the old regime.

Common Exotic and Indian Dog Breeds

India is home to a rich diversity of dog breeds both indigenous and exotic, each with unique traits suited to different environments and lifestyles. Among the exotic dog breeds that have gained popularity in India are the Labrador retriever, Golden Retriever, Beagle and German shepherd. These breeds often imported and are known for their friendly nature, intelligence and trainability. Labradors and Golden Retrievers are particularly famous for their loyalty and gentleness, making them excellent family pets. The Beagle, with its keen sense of smell and compact size, is a favourite among urban dwellers, while the German shepherd is valued for its protective instincts and versatility in roles like police work, guard duties and service tasks.

In contrast, Indian dog breeds, many of which are lesser-known globally, are uniquely adapted to the country's diverse climate and conditions. The Indian Pariah Dog is one of the oldest and most resilient breeds, found naturally across the country. Known for its strong immune system, minimal grooming needs and intelligence, the Indian Pariah is an exceptional companion that thrives with minimal human intervention. Another indigenous breed is the Rajapalayam, a sighthound from Tamil Nadu, historically used for hunting boar and protecting livestock. With its striking white coat and regal demeanour, the Rajapalayam is revered for its loyalty and bravery. The Mudhol Hound/ Caravan Hound, from the Deccan Plateau region (Andhra Pradesh, Karnataka, Maharashtra, Telangana and Tamil Nadu of India), is another notable Indian breed, known for its speed, agility and endurance, often used in hunting and guarding. Chippiparai, another hound from Tamil Nadu, has a sleek body designed for speed and was historically favoured by royalty for hunting small game. The Kanni, also native to Tamil Nadu, is a close relative of the Chippiparai and is recognized for its grace and loyalty, often kept as a companion dog.

Any organization which is in the process of scaling heights should find job motivation for its personnel. The job motivation of personnel in any organization should support the personnel and improve productivity and services. The chapter gives accounts of the significant findings of the study, followed by tenability of hypotheses and further areas of research in the related areas, suggestions and conclusion. The present study has been undertaken to find out the job motivation of LIS professionals working in Kerala's major eight state universities. The data of the study were collected from 266 (two hundred and sixty-six) Library and Information Science professionals. The study's objectives are examined with reference to the analysis of data gathered through questionnaires and realized. 

Introduction

This chapter gives an account of a summary of the significant findings of the study, followed by tenability of hypotheses, suggestions, further areas of research in the related areas, and a conclusion. The present study investigated the Quality of Work Life (QWL) of Library and Information Science (LIS) professionals working in Kerala’s eight prominent state universities. The data of the study were collected from the two hundred and sixty-six 266 regular qualified LIS professionals. 

Shrimp culture is slowly emerging as one of the major and fastest growing food production sector in the world. High demand in the international market encouraged many developing countries to grow shrimp in their coastal areas. Many countries including India earn sizable foreign exchanges by exporting both shrimp and frozen shrimp. International institutions like the World Bank, Food and Agriculture Organisation (FAO) etc. have also encouraged production of shrimp that fetch huge returns on investment within a short period of time. Indigent coastal people in India have been farming fish for hundreds of years. The warm climate, accessibility to coast, saline water and relatively low wage rate provides a comparative advantage for shrimp cultivation. Commercial shrimp farming developed in India on account of the government’s policy to promote shrimp culture in view of its potential to utilise the vast saline tracts along the coastline and to provide employment opportunities to coastal rural population. After the liberalization, development of shrimp culture gained greater momentum in the country. Individual entrepreneurs were also encouraged to take up shrimp farming with both financial and technical support from the government.

‘Shrimp’ which is an aquatic organism inhabiting the sea, estuaries and backwaters remained the backbone of Indian marine products exports. Shrimp is a protein-rich food with universal taste. Shrimp farming is a short duration activity and therefore, provides quick return on investment. It also provides gainful employment opportunities to the rural poor in the remote coastal areas. The value of shrimp exported in 2011-12 from India was estimated at about Rs. 8175.26 crores (US$ 1741.20 million). According to an estimate made by MPEDA, one hectare of shrimp culture operation can provide direct employment to atleast two persons and can also generate indirect employment to the extent of 1100 man-days.

Shrimp culture has a long tradition in India that began with the tidal stocking of shrimp in paddy fields and lagoons and holding them until harvest. More intensive forms of shrimp farming developed rapidly during the 1990’s. As was the case in many other nations in Asia, the development of shrimp farming in India took place without planning and regulation. This resulted in a variety of environmental problems and social conflicts. Although India has benefited from rising foreign exchange earnings, the conflict of coastal communities with shrimp farming has prompted a heated debate over the relevance of aquaculture in coastal ecosystem. Questions have been raised on its sustainability in the long run and some people also accused that this culture has disturbed the social harmony and has raised the inequality level in the rural areas.

Morphology based nematode taxonomy and biodiversity studies have historically challenged most biologists. In the past few decades, there have been efforts to integrate molecular methods and digital 3D image-capturing technology in nematode taxonomy, the former to enhance the accuracy of identification of such a taxonomically challenging group and the latter to communicate morphological data. While the employment of these two methods is growing in recent taxonomic, biodiversity and biogeographic studies, a movement to abandon traditional phenotypic identification methods altogether has emerged (Eyualem Abebe et al?, 2011). Proponents try to justify this trend by citing the challenging gap between the high estimated number of undescribed species and the limited ability of traditional taxonomy to accomplish the task of documenting such diversity.

Aquaculture is the culture of aquatic organisms per unit water area per unit time for maximum profit. The economically important finfishes and shellfishes, whose body physiology is adjustable to varied environmental conditions, are considered as aquaculture candidate species. So, an overall knowledge on the physiology of such species is required to improve the culture practices.

1.1. Finfish

A fish may be defined as a vertebrate, adapted for a purely aquatic life, propelling and balancing itself by means of fins, and obtaining oxygen  (O2) from the water for survival and life processes. As the fishes have fins, they are also known as finfishes. Fish describes a life from rather than a taxonomic group. They share certain features with other vertebrates. These are gill slits, a notochord, a dorsal hollow nerve cord and tail. In number of individuals, and may be also in number of species, fishes are presently superior to other vertebrates, including mammals. There are 20,000 different species of fishes. Fishes form largest group of vertebrates, Pisces. The various types of fishes differ so much in shape, color and size that it is difficult to believe they all belong to the same group of animals. Fish in general are cold-blooded and adjusted either to freshwater, brackishwater or marine environment.

1. 21723 living species of fishes existing in the world at present.

2. Jhingran and Gopalakrishnan 1974 listed 314 species of teleost utilized for aquaculture throughout the world.

3. Gynogenetic offsprings are always females.

4. Bisexual fishes – Gonochorism fishes.

5. Protoandrous hermaphrodites – Lates calcarifer, Sparus auratus, Sargus sargus and Palleus mormyrus.

6. Protogynous hermaphrodites – groupers.

7. Dwarf males were observed in Angler fish and Salmonids.

8. Sand spawners / Psammophils – Gobio gobio.

9. Rock and gravel spawners – Rohu, salmonids.

10. Terrestrial spawners / aerophils – Bryconpetrosus.

The millets are a group of highly variable small seeded grasses, widely grown around the world as cereal crops or grains for both human food and fodder. These are important crops in semi-arid and tropical regions of the world (in particular in Afro-Asian countries) due to their resistance to pests and diseases, short growing season and productivity under heat and drought conditions. Finger millet (Eleusine coracana L.) is a small seeded annual cereal which belongs to the grass family, Poaceae. 

1. Introduction Millets have gained popularity as staple foods worldwide, particularly in regions with hot and humid climates. These crops are often cultivated in marginal areas where major grains struggle to yield significant harvests (Thapliyal and Singh, 2015). One such millet is finger millet (Eleusine coracana), native to Ethiopia, and widely grown in Africa and India, where it is known by various names, including ragi and mandua (Table 1). In many developing countries, finger millet serves as a staple for a substantial portion of the population, especially those belonging to lower economic strata, providing essential nutrients (Chandra et al., 2016).

Finger millet (Ragi/ Mandua) is the principal small millet grown in South Asia. It is believed to be native of India (De condole, 1886) but according to Vavilov (1926) it originated in Abyssinia.

1. Blast
Pyricularia grisea
Diagnostic Symptoms
• Crop is susceptible to the disease during all stages of its growth, from seedling to grain formation stage.
• In young seedlings, lesions are generally of spindle shaped, however lesions of different sizes may also be observed.
• In the beginning the spots have yellowish margin and grayish centre. Later, the centres become whitish grey and disintegrate.
• Lesions are isolated in the beginning and afterwards they may soon coalesce. The distal portion of the leaves beyond the lesions may hang and drop off.
• In older plants, the disease appears on leaf blades with typical spindle shaped spots.
• Under congenial conditions, such spots enlarge, coalesce and form bigger lesions.
• Lesions are like those on the seedlings and are about 0.3-0.5 cm in breadth and 1-2 cm in length. Apices of the infected leaves beyond the lesions hang down and sometimes break.
• Stem infection causes blackening of the nodal region, penetrating into the tissues.

1.1 Introduction Millets were one of the first crops to be domesticated by mankind in Asia and Africa which later spread across the globe as critical food sources to the evolving civilizations. The earliest evidence of millets has been found in the Indus civilization around 3000 BC. Millets are a collective group of small-seeded annual grasses that are grown as grain crops, primarily on marginal land in dry areas of temperate, sub-tropical and tropical regions (FAO). However, due to the popularity of the cereal crops like wheat, rice and maize; millets have lost dominion and have become an underutilized crop in last few decades. Millets have the potential to be the crop of the future, as our major crops have reached yield plateau, also changing climate has introduced several new biotic and abiotic stresses to the major crops, so to feed the ever-growing population we need to shift towards other potential crops. India is the largest producer of millet as it contributes about 41% of the total millet production of the world (APEDA, 2020).

Stocking fingerlings in grow-out ponds increases survival rates, cut-down culture duration, better feed management and reduce risk-factors on account of natural as well disease occurrence. In pond culture, good amount of fry-size seed suffer predation from enemies such as snakes, birds and predator fishes, if any and mortalities due to disease occurrence as smaller size fish is more vulnerable. However, fingerling stocking reduces predation loss to a greater extent, increase survivals, allow better feed management and highe production. This is truer with carnivorous fishes and particularly those observe cannibalism. Qin and Fast (1996) stated that the rate of cannibalism is higher in small size (TL) predators than the larger in case of striped murrel, so stocking large size fingerling in culture ponds reduces chances of ICC and hence recommended for grow-out production.

7.1 Traditional Methods of Fingerling Rearing

Wee (1981) has defined traditional system of murrel farming in Thailand in which seed of murrel was procured from wild resources and raised to large fingerling size before stocking. Two type of practices being used to raise fingerlings. In the first one, the pond(s) designated for fingerling production are stocked with brooders of SFs so they could spawn in the stocking pond(s) few days before the stocking of striped murrel fry and could directly feed upon the juvenile SFs. In second system, the fingerlings were reared to accept small-size fish (SF) along with rice bran to cut down cost of feeding on production of fingerling. In recent, more systematic approaches have been made to wean the seed collected from the wild resources on inert diets totally. The protocol adopted for weaning the fingerling on inert diet includes initial feeding with cut pieces of SFs and then gradual supplementation of inert diet till fingerlings start relishing inert diet completely.

ABSTRACT

Exploitation of genetic resistance available in the local germplasm provides a rational solution to most deadly purple blotch disease problem associated with onion production in India. Keeping this in view, efforts have been made to characterize the identified sources of resistance available in the local germplasm. Three lines namely, MS-65-268, PBR-287 and Arka Kalyan-704 that were identified as resistant after screening, were subjected to Random amplified polymorphic DNA (RAPD) analysis for their precise identification and estimation of genetic relationship among them. Highly susceptible variety Arka Niketan was also included in the study for better interpretation. A total of 160 ten- mer random primers were used in the analysis, out of which, 41 exhibited polymorphism among the accessions. Out of these DNA profile with 5 primers namely, OPB02, OPB13, OPC09, OPC12 and OPF08 distinguished the three resistant accessions clearly from the susceptible one. On an average of 2.65 polymorphic, 11.65 monomorphic and 14.3 total bands were produced per primer. The amplified PCR products were of the range from 300 bp to 2 kbp and were consistent, unambiguous and repeatable. Further genetic dissimilarity analysis based on the Ward’s method using minimum variance algorithm and Principal Component Analysis (PCA) of these genotypes using the data generated from RAPD markers revealed high genetic diversity. Dendrogram clustered these four genotypes into two main clusters containing two each. PCA also confirmed high genetic dissimilarity. The least genetic dissimilarity (40.0%) was between PBR-287 and MS-65-268 where as the maximum (65.0%) was found between genotypes Arka Niketan-709 and MS-65-268.

Small amplitude wave theory was based on the premise that motions are sufficiently small to allow the free surface boundary condition to be linearized. Finite amplitude wave theories or Stokes’ higher order theories are similar as per the concept in which additional higher order terms that were neglected in the Airy’s theory are included. In general, the higher the order of the wave theory, higher will be the limiting wave height for which it would be valid.

5.1 Introduction

In applied mathematics the solution of problem generally consists of numbers which satisfy some kind of equation which are generally specified by numbers. But in practice it is found that these equations not always possible to express numerically or in exact decimal representative of the solution. Numerical methods are very important tools to provide practical methods for calculating the solutions of applied mathematics to a desired degree of accuracy. The wide use of electronic computers for solving problems in the fields of engineering, scientific, industry etc that further enhanced the scope of numerical methods.

The calculus of finite differences deals with the changes in the values of the function (dependent variable) due to changes in the independent variables. Again through this the relation of the values of the function is studied whenever the independent variable changes by finite jumps whether equal or unequal.

First Aid in Orthopaedic Patient

Immediately transfer the animal to a safety place.

The place should be well settled, well ventilated, neat and clean.

If the fracture site is limb and it is a simple fracture, immediately immobilize the animal with soft cotton padding and plastic scale placed at four sites.

If the fracture site is limb and it is a compound fracture, cover the fractured site v/ith th’ck padded clean cotton cloth and few bamboo splint placed on four sides to keep limb straight.

Control the bleeding, if bleeding occurs at time of covering of fractured site with thick padded clean cotton cloth.

If the fracture site is vertebral column, it is better not to lift the patient vigorously.

A patient with vertebral column fracture shouldn’t be allowed for standing.

Introduction

Fermented meat and fish products have been consumed all over the world since times immemorial and represent one of the most important groups of food. Meat offers its own natural microflora. Hence a wide variety of products have been prepared since ancient times by varying the mixture of meat and salt as well as by the addition of spices and seasonings. Thus, fermented meat products characterize a diversity of flavors and textures and are receiving increased interest from consumers all over the world. Most of these products still depend mainly on local, traditional manufacturing processes since little scientific information is available; but scientific knowledge is very important for consistent production of high quality and safe products.

Meat is an essential part of non-vegetarian diet. It is liked for its unique taste and is a rich source of nutrients like good quality animal proteins, essential amino acids and fatty acids, minerals, trace elements and particularly B-complex vitamins (Singh et al., 2013). The growing concern of consumers regarding health and safety issues has led to the development of functional meat products that promote health and well-being, beyond their nutritional benefits (Grasso, et al., 2014; Tyopponen et al., 2003). This has driven researches in the meat processing sector to increase their efforts in producing such functional meat products, which have incorporated functional ingredients, reduced salt, nitrates/nitrites, cholesterol and fat and modified product fatty acid profiles (Zhang et al., 2010). Fermentation of meat produces a wide range of physical, biochemical and microbial changes in the muscle-based product

1. Fish flesh contains 15-20% protein.

2. Fish meal is a good source of Vitamin B.

3. Fish meal is also a good source of some trace elements which is referred as unknown growth factors.

4. Wet rendering & dry rendering are the methods of preparing fish meal.

5. Moisture level of the wet rendered fish is about 8 + (- 10)%

6. Stick water = 5.6% of fish solids + 94% of water +0.4% of oil.

7. Albumin is also present in stick water.

8. In direct driers = outlet temperature is maintained as 80 - 100 deg * C inlet temperature is maintained as high as 600 - 800 deg * C

9. Dryers typically designed to dry the wet meal to around 9-10% of moisture content.

10. Plastics are chosen for packaging for its oxygen impermeability.

11. Fish protein concentrate is a stable fish protein prepared from whole

Fish are of great economic value for man. In addition to it is an important item of food and provides several important by – products also which are as :

1) Fish oil

The most important fish by product industry is fish oil which acts as a vehicle for fat soluble vitamins i.e. A, D, E and K, and source of essential faty acids.

The oil of fish is categorized into two main types as the fish liver oil and fish body oil.

The oil abstained from the whole body of fish is called as body oil and is poor in vitamin contents.

The oil abstained from the only liver of the fish is called as the liver oil, and is good quantity of vitamins.

The body oil is less valuable as compared to the liver of the fish.

1. Father of caning Nicholas apart

2. Tin canister invented by Peter Durand

3. Father of modern canning Bryon Dorkin

4. Pure food act - 1906

5. Invention of pressure retort-1874

6. Double seaming machine invented in - 1890

7. OTS can invented in 1904

8. The first Indian canning industry was constructed in 1911 at chaliyam, Kerala

9. PH above 5.3 food known as low acid food

10. PH 4.5-5.3-known as medium acid food

Takes clean, washed and edible fish-50-100 g for each method of cooking. And cook the fish according to the methods given table and record the characteristics of cooked fish.

1. In India roughly curing preserves 20% of the fish caught.

2. Salt curing is an important and one of the most widely adopted method of fish preservation.

3. Higher salt content prevents the growth of normal spoilage micro flora in the fish.

4. Salted fish reduced to biscuit cure in drying kilns.

5. Sodium chloride diffuses through the fish flesh by a dialysis mechanism & water will diffuse to the outside due to the osmotic pressure between the brine and fish muscle solution.

6. Gaspe curing is practiced in aboard, originated in eastern Canada.

7. Dry salting ratio is 1:3 to 1:10 (salt: fish).

8. Yield of dry salting is about 35-40%

9. The shelf life of the dry salted fish is about 6-10 weeks.

10. The moisture content of the wet salted fish is about 50-55%.

INTRODUCTION

Ecosystem services and biodiversity conservation are well recognized as essential to human well-being and have become a policy priority. India is gifted with a large coastline and vast stretches of coastal wetlands. The estuaries and back waters which may include mangroves, mud flats, bays etc. extend over a large part of the Indian coasts. The mangrove ecosystem functions as a habitat for nurseries, thus benefiting fishers in the food chain (Mumby et al., 2004; Venkatachalam et al., 2018). Mangrove habitats increase the survival ratio of young fish that migrate to other offshore habitats when they mature, resulting in the enrichment of fish biomass in adjacent mangrove areas (Mumby et al., 2004; Aburto-Oropeza et al., 2008). Mangroves enhance fish production by providing food and shelter to fishery resources. Mangrove forests are highly productive, with average primary productivity level similar to that of tropical terrestrial forests (Alongi, 2009). Therefore, mangrove loss could have a devastating effect on fishery outcomes. The estimated fish catch is up to 70% higher in mangrove areas than in non-mangrove areas (Das, 2017).

NATURE OF MANGROVE FORESTS

Mangroves are amongst the most productive marine ecosystems on the Earth, providing a unique habitat opportunity for many species and key goods and significant services for human beings. They are salt tolerant plants, and are found distributed growing in estuaries, lagoons, backwaters and bays at the land-sea interface in tropical and subtropical areas of the world. Mangroves thrive on low-oxygen through the breathing roots or pneumatophores that are used for respiration. They need freshwater for their growth and so they live at the sea edge, they must remove the salts from the water that is taken in by the roots.

INTRODUCTION

Fish live in a variety of watery habitats and comprise around 50% of all vertebrate species worldwide. There are approximately 21,723 known living fish species out of a total of 39,900 vertebrate species, with 8,411 found in freshwater habitats and 11,650 in marine environments (Jayaram, 1999). Fish are used as markers of contamination and contribute significantly to the preservation of human history and welfare, either directly or indirectly. According to Mittermeier et al. (1997), India ranks eighth in the world for freshwater biodiversity, making it one of the nations with significant biodiversity. There are over 2,500 fish species in India; roughly 930 of them are found in freshwater environments, and roughly 1570 are found in marine ones (Kar et al., 2006).

Fish diversity is particularly rich in the northeastern part of the nation; studies have shown that there are 267 freshwater fish species from 114 genera distributed over 38 families and 10 orders (Mahanta et al., 2003). Fish plays a crucial role in Assam's cuisine, where a wide range of fish species may be found in the region's floodplain wetlands because of the subtropical climate, favorable ecological and topographical circumstances, and inherent capacity for stocking. Assam's waters, including its wetlands, are home to around 217 fish species, representing 104 genera, 37 families, and 10 orders, according to Goswami & Singha (2023). Assam's lakes and marshes are vital for supplying the state's domestic fish needs, fostering economic growth, and giving the general public access to fairly priced food. In Maguri Beel, several fish are in danger of going extinct because of pollution, habitat damage, and the introduction of non-native species, overexploitation and human activity (Moyle & Moyle, 1995; Malakar & Boruah, 2017). The 2020 oil spill incident might have had a major impact on the variety of the ichthyofauna's composition. To address the same, a comparison of the same with earlier research is desperately needed. As a result, the current study intends to examine the fish variety of Maguri Motapung Beel, close to Motapung Village in the Tinsukia region of Assam and Dibru-Saikhowa National Park.

1. Indian Major carps belongs to which family?

 a) Cobitidae

c) Ariidae

b) Cyprinidae

 d) Clupeidae

2. Body of carps is covered by which scales?

 a) Placoid

b) Ganoid

 c) Cycloid

3. Family cyprinidae includes......

 a) Catla catla

c) Cirrhina mrigala

d) Ctenoid

 b) Labeo rohita

 d) All of these

4. Selection criteria for cultivable fish includes .........

 a) It should have a fast growth rate

 b) It should be a hardy and resistant to disease

 c) Its flesh should be tasteful and with high nutritive value

 d) All of these

5. Why carps are suitable for culture?

 a) They can tolerate low oxygen content

 b) They have fast growth rate

 c) They feed on plankton,decaying weeds and debris

 d) All of these

Introduction
Understanding the diversity, distribution, and habitat preferences of fish species is crucial for devising effective conservation strategies for fisheries resources. Fish distribution patterns are influenced by factors such as dispersal mechanisms, environmental tolerance, and historical factors, while aquatic organisms are directly impacted by variables like climate, land use, geological features, vegetation, topography, and water chemistry fluctuations (Carter et al., 1980; Wiley et al., 1997). Fish represent the most abundant class of vertebrates, comprising nearly half of all vertebrate species globally, with diverse characteristics in terms of size, biology, morphology, and habitat preferences (Kour et al., 2015). Freshwater ecosystems, which account for 68.7% of the world's cold water fisheries, are particularly significant, especially in regions like the Himalayas, where they support vital aquatic life and offer economic opportunities through aquaculture (Fricke et al., 2023). Cold water fish species, predominantly belonging to the Cyprinidontiformes order, are particularly abundant and important in these ecosystems (Fricke et al., 2023). The biological diversity of the planet, including its freshwater ecosystems, has long been a subject of fascination and study (Joshi et al., 2013). India is ranked ninth in the world for freshwater biodiversity, with over 2,500 fish species, 930 of which are unique to freshwater environments. India has been recognized as one of the mega-diversity countries of the world (Mittemeier and Mittemeier, 1997; Jayaram, 2010). The Himalayan region alone contributes approximately 17% of India's fish population (Ghosh, 1997). This chapter aims to comprehensively understand the diversity, distribution, and habitat preferences of fish species in the Kashmir Valley. By examining key factors influencing fish distribution patterns—such as dispersal mechanisms, environmental tolerance, climate, land use, geological features, vegetation, topography, and water chemistry—we seek to develop effective conservation strategies for fisheries resources. Given the significance of freshwater ecosystems, especially in cold-water regions like the Himalayas, this study will shed light on the ecological and economic importance of these habitats. Additionally, by documenting the diversity and distribution of fish species in the Kashmir Valley, this chapter aims to contribute to the broader understanding of freshwater biodiversity, inform conservation policies, and support sustainable management practices for India's rich fisheries resources.

Three years after the establishment of the Central Institute of Fisheries Education (CIFE), a global conference was held at Rio de Janeiro, Brazil, for promoting environmentally sustainable development in all spheres of human activity. At this UN Conference on Environment and Development, generally referred to as the Earth Summit, an Agenda 21 was adopted to provide guidelines for mainstreaming ecology in all major research and development programmes. In Agenda 21, pride of place has been given to the management of aquatic resources from both the quantitative and qualitative aspects. 2012 marks the twentieth anniversary of the Rio conference.  It will be useful to prepare a balance sheet indicating where we have succeeded and where we have failed in implementing Agenda 21 in the area of inland and marine fisheries, as well as integrated coastal zone management.

Finfish and aquatic invertebrates are part of Fish Genetic Resources (FiGR) that has actual or potential value for culture and capture fisheries. Fish as a group, have the highest species diversity among all the vertebrate taxa. Out of 62,305 species of vertebrates recognized world over, 32,064 (~ 52%) are valid fish species; of which, the great majority (97%) are bony fishes, mainly teleosts; and the remaining (3%) are cartilaginous fishes (sharks & rays) and jawless fishes (lampreys and hagfishes) (Eschmeyer and Fricke, 2012). India is blessed with vast fishery resources, like exclusive economic zone (2.02 m sq. km), coast line (8,129 km), ponds and tanks (2.254 m ha), beels, ox-bow lakes and swamps (1.3 m ha), reservoirs (2.90 m ha), rivers and canals (173,287 km), brackish water (1.235 m ha) (Ayyappan et al., 2011). The country is fortunate to possess vast and varied fish genetic resources in different aquatic ecosystems and being home to 7.84% of global finfish diversity, with 3535 species of fish, of which 3035 are native species, representing 46 orders, 252 families and 1,018 genera. The 500 exotic fishes are also covered and majority of them are of ornamental fishes. Out of the 3035 native fishes, 1016 are freshwater, 113 are brackish water and 1906 are marine species and at least 258 species are of commercially important (NBFGR, 2016-17). India harbours a rich diversity of fishes and four out of 34 biodiversity hotspot areas of the world. The biodiversity hotspots i.e. the Western Ghats and North East India harbours maximum endemic freshwater fishes. The Western Ghats harboring about 306 finfishes out of which nearly 69% are endemic to the region (Gopalakrishnan and Ponniah, 2000). Likewise North East India, another biodiversity hotspot area, harbors about 240 fin fishes and nearly 40% are endemic to the region (Sarkar et al. 2012). In the past one and half decades more than 50 new species were described from these areas and more than 10 new species were described from the marine environment.

1. Genetics is a branch of science which deals with study of heredity variation among related organism.

2. UK established the Institute of the Biotechnology.

3. ICGEB-international center for genetic engineering and biotechnology which has two center India and Italy.

4. When cross is made between two parents differing in two characters known as dihybrid cross.

5. Mendel's first law Law of segregation.

6. Mendel's second law law of independent assortment.

7. When F, cross with its parent it is known as back cross.

8. When F, cross with recessive parent is called as test cross.

9. Monohybrid test cross gives 1:1 phenotype.

10. Dihybrid test cross gives 1:1:1:1 phenotype ratio.

33.1 Introduction

World fisheries face the threats of overfishing and climate change that have resulted in the extinction of genetically unique stocks and loss of genetic diversity. Genomics has brought new tools that can help address fundamental questions in fisheries management such as stock identification, population structure, and adaptive response to environmental change (Bernatchez et al, 2017).

1. Introduction

Starting a fish hatchery has the potential to be a profitable endeavor with substantial income growth. Fish hatcheries are essential to the aquaculture sector because they breed and raise fish for a variety of uses, including commercial operations, recreational fishing, and stocking. This business has numerous advantages such as the opportunity for sustainable production methods, consistent demand for fish products, and very low initial investment expenses. Furthermore, fish hatcheries offer a practical way to address the growing global demand for seafood while also promoting economic development and job creation in nearby communities. The context for discussing the benefits and potential of establishing a fish hatchery as a way to double revenue was established by this introduction. In an established fish hatchery, fish eggs are produced and reared under carefully monitored circumstances in preparation for their eventual release into the wild or transfer to aquaculture farms. The potential of fish hatcheries to double income is examined in this introduction, which also emphasizes important aspects such as market demand, sustainability, technological improvements, and financial feasibility.

Introduction
Fish raised in cold water fisheries are species that flourish in temperatures usually below 20°C. To increase fish production and provide jobs for the local population, cold water fisheries have been established throughout India. One important region in India where cold-water fisheries have been effectively Exclusively Distributed by NIPA GENX Electronic Resources and Solution Pvt. Ltd. New Delhi established is Himachal Pradesh. There are plenty of cold-water rivers and streams in this area that are perfect for fish farming. To encourage cold water fisheries, the state government has launched several programmes, including financing for the construction of fish farms and the purchase of supplies and equipment. The most often farmed fish species in Himachal Pradesh's cold water fisheries are brown trout, rainbow trout, and mahseer (Bhat et al., 2023). India is well known for its cold-water fish, which are highly prized for their flavour. In addition to Himachal Pradesh, other states that have embraced cold-water fisheries include Jammu and Kashmir, Uttarakhand, Sikkim, and Arunachal Pradesh. However, obstacles to their growth include restricted market access, a lack of technological know-how, and inadequate infrastructure. The many cold-water fisheries in northern and northeastern India demonstrate the region's enormous potential despite these obstacles (Pandey et al., 2021).
These fisheries support a variety of fish species that have evolved to live in colder waters. With an approximate length of 2,500 km, the Himalayas stretch from Nanga Parbat (8,126 m) in the west to Namcha Barwa (7,756 m) in the east, encompassing an area of 594,400 km². Its western boundary is the high plateau of Tibet; its northern boundary is the Karakoram Mountains; the range's southern and northern limits are separated by 200–400 km. The Siwaliks, the lesser and Greater Himalayas, and the Trans-Himalaya run parallel to each other from south to north and are identified by their physiographic features and geological histories. With a combined catchment area of around 160,000 km², the Indus and Brahmaputra are the longest of the nineteen major rivers that meander through the Himalayas. When these rivers emerge from the mountains; many of them pass through wide valleys. According to Shinn et al. (2015), the distribution of fish species in Himalayan streams is influenced by variables such as flow velocity, substratum type, water temperature, and the availability of food. The intensification of aquaculture systems has resulted in the appearance of new pathogens and a greater dependence on antibiotics and other supplements, which threaten the health of fish, humans, and the environment (Watts et al., 2017). Aquaculture faces a great deal of difficulty due to diseases, which result in large production losses that surpass six billion USD annually (Bhat et al., 2023). According to estimates, 10–50% of aquaculture production expenses are related to disease management (Sahoo et al., 2017). This book chapter provides a brief overview of some prevalent parasite, viral, and bacterial diseases that have been linked to temperate and cold-water aquaculture, along with information on potential remedies and preventative measures. Commonly disease found in fish are presented in (Table 1, 2 and 3).

Ornamental fishes are very prone to diseases due to their captive habitat. Fish health management is an important issue of concern at all the ornamental fish production facility. Proper water quality is required to be maintained in the aquarium for the good health of the fish. However, the chance of infection in these fishes is very high. Many limiting factors viz. water quality, over crowding, nutritionally imbalance food, rapid fluctuation in water temperature, lack of oxygen or poor husbandry practices influence the health status of the stock. The symptoms/signs indicate whether the fish is suffering from a particular disease or not. If the fish are observed to be swimming actively and there is no noticeable abnormality in the behaviour, it means there is nothing to worry about the health of the fish in the aquarium. On the other hand, diseased fish may look off colour, restless and/or behave erratically. In such a situation, the fish should be closely observed for visible infection and remedial measures should be taken immediately. Stock improvement in terms of disease prevention must be a top priority issue. In order to achieve healthy fish species, it is necessary to have a health management protocols in every farming practices.

Introduction

Fisheries play an important role in our national economy by providing a quality source of protein thus ensuring nutritional security of our people, foreign exchange and employment for about 14 million people. The ocean is continuously subjected to enormous stress through utilization of the marine resources and preservation of biodiversity is often ignored. Precautionary use of living aquatic resources in harmony with the environment leads to responsible fisheries and moreover it’s our responsibility to make fishery wealth as perennial as possible and adoption of responsible method of fishing can take us to a prosperous future. Though various fishing techniques are in practice, line fishing using baited hooks or artificial jigs is an effective method to capture predatory fishes. The catch obtained by line fishing is generally of high quality and commercial value with minimal environmental impact. The supply of fish is highly seasonal, leading to price fluctuations across regions and seasons, even within a day and being exploited by middlemen resulting in reduced welfare of fishermen. The existence of traditionally been highly unorganized and unregulated marketing system is the prime reason for its inefficiency. Various attempts have been made to overcome this problem by fishermen group as well as government agencies in India. But, these kinds of efforts have largely been confined to a few small locations and were highly scattered. Unlike poultry or dairy industry, innovations in fish marketing have not been on a macro level (Ganesh, et al., 2008). Against this background, the study has attempted to have a better understanding the innovative fish marketing practices being adopted by people institutions called “Sangams” in Kombuthurai fishing village and to draw lessons for upscaling and to promote such successful institutions in a similar socio-politico-economic scenario in other parts of the country as well for efficient fish marketing system.

1. Feed costs 40-60% of the operational cost of the aquaculture systems.

2. Nutrition consists of diet (what you take in) and metabolism (what happens to it after it enters your body).

3. Types of nutrients: 6 (water, protein, lipid, carbohydrate, vitamin and minerals).

4. Organic nutrients - Carbohydrates, Fats, Proteins and Vitamins.

5. Inorganic nutrients - Minerals.

6. Energy yielding nutrients Protein, Fat and Carbohydrates.

7. Non-Energy yielding nutrients - Vitamin and Mineral.

8. Lower protein requirement - Herbivores and omnivores.

9. Higher protein requirement - Carnivores.

10. Average calorific values for protein-5.65 Kcal/g.

39.1 Introduction

Like all other animals, fish are also subjected to certain diseases. This is one of the most important problems confronting a fish culturist. Diseases at times may take the form of epidemics. The occurrence and magnitude of infections and diseases are closely related to the sanitary conditions prevalent in the water and also the general health of the fish.

1. B / R = Biomass per recruit.

2. CPUE Catch Per Unit Effort.

3. E max = Exploitation level which maximizes Y/R.

4. F = Effort.

5. F = rate of fishing mortality.

6. F max = Fishing Mortality generating maximum yield per recruit.

7. F MSY = Fishing effort generating MSY.

8. H = natural mortality factor in Jone's length based cohort analysis.

9. K = parameter of VBGF.

10. Ln =log e , logarithm of base e; Neperian logarithm.

1. Carotenoid act as antioxidant

2. The energy source for ATP generation in the light muscle is glycogen

3. Dark muscle contain much more mitochondria than the light muscle

4. Phospholipid also called as structural lipid

5. Light muscle mostly generating energy by the anaerobic metabolism

6. The triglyceride are known as the depot fat

7. Cod contain less than 1% lipid

8. Lean fish contain 6% of the cholesterol of the total lipid

9. Squalene also known as diacetyl alkyl glycerol

10. Shark liver oil contain minimum 80% of the lipid as un saponifiable substances

11. In marine fish fatty acid constitute only around 2% of the lipid

7.1 Introduction

Fisheries are emerging as one of the fastest growing food production system all-over the world. The potential for fisheries development world over and especially in India is highly promising in view of physical and biological resources available coupled with technological development. The demand for fish fishery products is ever increasing as the awareness of health benefits are being made available to public at large. The world fish production has not kept pace with demand which means less and less fish is available. Nevertheless, a large fraction of this valuable commodity is wasted due to deterioration after landing or consumer preference. An estimate by FAO [1] indicates nearly 20-25% of the total catches are wasted as postharvest loss. Better utilization of aquatic resources should therefore, aim primarily at reducing this enormous loss by improving preservation of fish and fishery products and upgrading the discarded low value fish to high value fishery products. The processing of fish into different types of products generates considerable waste. Commercially, fish is being processed into fillets, steaks, mince, canned products and a variety of ready-to-eat products. Fish processing plants contributes substantial wastes in the form of skins, bones, offal, exoskeletons from shrimps and nutrients in wash water from surimi plants.

Fish processing waste utilization is an important issue for the seafood industry both from a regulatory standpoint as well as one that has potential economic impacts. It is estimated that only 25-50% of the raw material is utilized for primary products (fillets, canned and stabilized mince production). The remaining 50-75% of the raw material is considered processing waste and is utilized for low-value products or disposed-off at sea. A large volume of solid waste is currently processed into fish meal, fish protein hydrolysates, and fertilizers. A small percentage is processed into higher valued items, such as, seafood flavourants, colourants, chitosan, enzymes, etc.

Introduction

Fish is a renewable natural resource. It is a significant part of the domestic food supply which amount of foreign exchange. Export of fish and fish products has expanded very significantly. Fish earns increasing farming is an important component of India’s rural economy. Inland fisheries including rivers and ponds produce about 35 to 40 percent of the total fish harvest of the country. Fresh water aquaculture belongs to the unorganised traditional sector, which consists of many socio economically weak fishermen and small-scale fish farming units that use traditional methods of fish culture. Fish farming faces dual problem of conservation and development. Conservation may be defined as an approach to resource management that seeks to leave fish resources relatively untouched. Development on the other hand amounts to the use and modification of fish resources. It may involve transformation of fish resources. It is considered as a renewable resources because with proper management it can be made to yield direct services indefinitely into the future. But its renewability does not imply that it is free from pressing problem of over exploitation and total depletion.

1. Protein solubility depends up on the amino acids composition

2. Viscosity is influenced by protein solubility & swelling capacity

3. Thermodynamically unstable mixture of immiscible liquid are called as emulsion

4. Emulsion capacity based on the hydro pobisity charecters of myosin

5. Foam is the analogous to the emulsion

6. Protein solubility is the key requisite for foam formation

7. My of ibrilar are the largest water holding filament

8. Cross linking of protein polymer called Gelation

9. Important key characteristics for gel forming ability is freshness of the fish

10. Margarine produces the golden yellow colour

1. Introduction

Aquaculture is a thriving industry that contributes significantly to the economy by creating employment, sustenance, and nutrition owing to diverse resources and possibilities. Aquaculture is experiencing rapid growth as the swiftest food production sector is expanding, with an annual increase exceeding 8%. Fish production reached an estimated level of 16.25 million metric tons (MMT) (MPEDA). In the dynamic realm of aquaculture, the application of fish therapeutics is important for maintaining the health and productivity of fish populations. As the industry strives to meet the escalating global demand for seafood, understanding the nuances of fish therapeutics is crucial. This article explores the diverse techniques employed in fish health management, delving into their applications and advantages while simultaneously addressing the inherent limitations that pose challenges to sustainable aquaculture practices. Navigating through these complexities is essential to forge a path towards effective, ethical, and environmentally responsible fish therapeutics in the ever-evolving landscape of aquaculture.