BIOLOGY LIFE SCIENCE

Freshwater Fish Farming

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Fish farming is the principal form of aquaculture. Fish farming involves raising fish commercially in tanks or enclosures usually for food. A facility that releases juvenile fish into the wild for recreational fishing or to supplement a species’ natural numbers is called a fish hatchery. Worldwide the most important fish species used in fish farming are carp salmon tilapia and catfish. There is an increasing demand for fish and fish protein which has resulted in widespread overshing in wild fisheries. The global returns for fish farming recorded by the FAO in 2008 totalled 33.8 million tonnes worth about $US 60 billion. Limiting for growth here is the available food supply by natural sources commonly zooplankton feeding on pelagic algae or benthic animal; such as crustaceans and molluscs. Tilapia species filter feed directly on phytoplankton which makes higher production possible. The photosynthetic production can be increased by fertilizing the pond water with artificial fertilizer mixtures such as potash phosphorus nitrogen and micro-elements. Another issue is the risk of algal blooms. When temperatures nutrient supply and available sunlight are optimal for algal growth algae multiply their biomass at an exponential rate eventually leading to an exhaustion of available nutrients and eventually die off. The present book is a concise and up-to-date work including all aspects of this subject.

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Harvest and Postharvest Technology of Fish

₹6,849.14 M.R.P.:₹ 11,047.00 You Save: ₹4,197.86 (38.00% OFF)

Post harvest technology of fish has evolved in the last one decade to a more energy-efficient cost-effective and quality upgrading technology. Since fresh fish can get spoiled very quickly the development of technology for post-harvest preservation and methodology to convert fish to value added products have also become popular in recent times.Fish harvesting system includes the components fishing vessels (craft) and fishing gear. The term fishery vessels is used to denote the mobile floating objects of any kind and size operating in freshwater brackish water and marine areas used for catching transporting landing preserving and/or processing of fish shellfish and other aquatic animals. There are vessels performing other functions related to fisheries such as supplying protecting rendering assistance or conducting research or training.Fish processing can be further subdivided into fish handling which is the preliminary processing of raw fish and the manufacture of fish products. Another natural subdivision is into primary processing involved in the filleting and freezing of fresh fish for onward distribution to fresh fish retail and catering outlets and the secondary processing that produces chilled frozen and canned products for the retail and catering trades.The book will be useful not only for the students and teachers but also for the technical personnel of the fast growing fish processing industry.

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Marine Fishery Resources

₹7,180.55 M.R.P.:₹ 11,047.00 You Save: ₹3,866.45 (35.00% OFF)

Marine fisheries are very important to the economy and well- being of coastal communities. Maintaining the long-term prosperity and sustainability of marine fisheries is not only of political and social significance but also of economic and ecological importance. Marine biology is the scientific study of marine life organisms in the sea. Given that in biology many phyla families and genera have some species that live in the sea and others that live on land marine biology classifies species based on the environment rather than on taxonomy.Marine ecosystems are very important for the overall health of both marine and terrestrial environments. According to the World Resource Centre coastal habitats alone account for approximately 1/3 of all marine biological productivity and estuarine ecosystems (i.e. salt marshes seagrasses mangrove forests) are among the most productive regions on the planet. In addition other marine ecosystems such as coral reefs provide food and shelter to the highest levels of marine diversity in the world.The primary goal of preparing this book is to present a balanced view of the diversity of issues that relate to the water and marine environment and to provide the fundamental information that will allow readers to understand the complexities of those issues.

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Marine Food Fishes

₹7,376.14 M.R.P.:₹ 11,897.00 You Save: ₹4,520.86 (38.00% OFF)

Some 300000 marine species are known to science estimated to be about 15 percent of all the species identified on the planet. But the sea is so vast that a million or more as yet unknown species may live in its waters. Most of these aquatic species are tied together through the food web.The marine food chain is made up of animals that feast on the sea’s abundant plant life. On the ocean’s surface waters microscopic animals zooplankton which include jellyfish and the larval stages of some fish barnacles and molluscs that drift across the sea grazing opportunistically. Larger herbivores include surgeonfish parrotfish green turtles and manatees.Most tropical food fish have higher growth rates than temperate fish species reaching commercial size much faster. There is a growing demand for marine food fish in all Pacific Island countries and the supply usually does not meet this demand. There are a number of suitable sites for marine fin-fish culture in the Pacific and brood stock is locally available in most countries. Some species of food fish have considerable traditional customary values associated with them.The present work will assist in resolving the difficulties of identification of marine life in the field and the baseline data given in this book will assist one and all in the field of fishery biology.

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Marketing Of Fish And Fish Products

₹6,322.14 M.R.P.:₹ 10,197.00 You Save: ₹3,874.86 (38.00% OFF)

In simple terms the marketing and sale of fish products may be termed as fish-marketing. The physical place where the sale or purchase of fish and fishing products occurs is termed as a fish market. It can be dedicated to wholesale trade between fishermen and fish merchants or to the sale of seafood to individual consumers or to both. Retail fish markets a type of wet market often sell street food as well. To make fish available to consumers at the right time and in the right place requires an effective marketing system. Fish are usually sold frozen and are marketed in different categories; the main factors for categorisation being presentation grading colour and uniformity. Fishermen who catch fish by labouring overnight do not usually sell fish in retail markets. At the break of day they take their catch to places where intermediaries or retailers meet them and bargain by the lot. Factors like freshness availability demand etc. can also influence what the catch will ultimately go for.This book is a comprehensive guide on the subject of fish-marketing and the trading of fish. It would be beneficial to professionals from the industry and informative to the general reader.

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Pond Fertilization And Fish Feeds

₹6,075.85 M.R.P.:₹ 11,047.00 You Save: ₹4,971.15 (45.00% OFF)

Phytoplankton is the base of the pond food chain. Fertilization increases fish production by increasing the amount of microscopic green plants (phytoplankton) in the water. Proper fertilization and liming can increase three to four times the pounds of fish a pond will support. Unfertilized ponds stocked with bream bass and catfish usually have about 100 pounds of fish per surface acre. Ponds receiving adequate amounts of fertilizer typically contain 300 to 400 pounds of fish per surface acre. A fertilization schedule can dramatically improve fish production in ponds by up to 300 percent and can also decrease aquatic weed problems by shading the pond bottom so that aquatic weeds do not have an opportunity to grow. In undrainable ponds where the frequent change of water is a remote possibility the physico-chemical properties of pond water governing the biological production cycle are more or less a reflection of the bottom soil. The organic and mineral constituents of the soil play their part in releasing the required nutrients into water for pond productivity through chemical/ biological processes.This book will be very much helpful to the students professionals and policy makers associated with Pond Fertilization and Fish Feeds.

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Reproductive System In Fishes

₹6,322.14 M.R.P.:₹ 10,197.00 You Save: ₹3,874.86 (38.00% OFF)

Fish reproductive organs include testes and ovaries. In most species gonads are paired organs of similar size which can be partially or totally fused. There may also be a range of secondary organs that increase reproductive fitness. Some fish are hermaphrodites having both testes and ovaries either at different phases in their life cycle or as in hamlets have them simultaneously. The fertilisation of eggs can be either external or internal. In many species fins have been modified to allow Internal fertilisation. This book dwells into this in great detail while discussing topics such as Fatty Acid content in fish digestion proteins and Amino Acids Endocrine and Reproductive Systems developmental plasticity in the Circulatory System etc. The author also shares insights about the risks and controls in managing Fishery products the factors involved in maintaining Fisheries farming systems etc.

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Oceanographic Environment

₹7,015.69 M.R.P.:₹ 11,891.00 You Save: ₹4,875.31 (41.00% OFF)

Nearly three-fourth of the Earth’s surface is covered in water. Oceanography also known as oceanology is the branch of Earth science that studies the ocean. It covers a wide range of topics including ecosystem dynamics ocean currents waves geophysical fluid dynamics plate tectonics geology of the sea floor fluxes of various chemical substances and their physical properties both within the ocean and across its boundaries. Oceanographic ecology is concerned with environmental factors and problems of organic adjustments quite different from those in fresh water. Animals are relatively more conspicuous than plants.Even though it is widely referred to as a field concerned with the world below the surface of the sea it should include the contact zone between sea and atmosphere. The sky above the sea and even celestial bodies greatly impact both the ethos of the water bodies as well as the marine life within them.Biological oceanography is a field of study that seeks to understand what controls the distribution and abundance of different types of marine life and how living organisms influence and interact with processes in the oceans.This book examines in the detail the various dimensions of the Oceanographic environment and would be beneficial for students scientists and researchers.

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Biology Glossary

₹148.75 M.R.P.:₹ 175.00 You Save: ₹26.25 (15.00% OFF)

High School तथा 10+2 के स्तर व इसी स्तर पर होने वाली प्रतियोगी प्रवेश परीक्षाओं JEE, NEET व अन्य इंजीनियरिंग/मेडिकल प्रवेश परीक्षाओं की तैयारी कर रहे विद्यार्थिओं को विषय - वास्तु : जैसे - रसायन विज्ञान, भौतिक विज्ञान, गणित तथा जीव इत्यादि का सूक्ष्म अध्ययन जरूरी है।  हिंदी माध्यम के विद्यार्थियों को English माध्यम में एकाएक आने पर कठिनाई होती हैं जिससे वे अध्ययन और विषयगत ज्ञान को co-relate नहीं कर पाते हैं।   फिजिक्स ग्लोसरी ऐसे विद्यार्थियों को 10 + 2 Level पर Biology के Assimilation को सुगम बनाने वाली पुस्तक है। इसमें English में प्रयुक्त Biology के शब्दों का हिंदी में Correct Pronunciation बताया गया है। इसके साथ ही Terms को हिंदी तथा English दोनों भाषाओं (Languages) में ठोस, संक्षिप्त तथा स्पष्ट तरीके से परिभाषित किया गया है। इसमें Biology के 10 + 2 Level के सभी Concepts, Laws तथा Experimental Terms दिए गाये हैं।

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Animal Stem Cells

₹6,930.56 M.R.P.:₹ 10,192.00 You Save: ₹3,261.44 (32.00% OFF)

This book provides current information on the use of animal stem cells and is ideal for students academics and research scholars. The biochemical activity is the process of chemical and physical change which goes on continually in the living organism. These characteristics of life include the build-up of new tissue replacement of old tissue conversion of food to energy disposal of waste materials and reproduction. The catalysts of biochemical reactions are enzymes and are responsible for bringing about almost all of the chemical reactions in living organisms. This book will explore such reactions as used by animals.

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