Applied Fisheries Science

Marine and fisheries scientists are increasingly using advanced tools to better understand and model their systems to bridge the gap in knowledge of fish behavior and distribution. This book describes the advances in fishery sciences technology which are leading to assessing fish reproductive potential and dispersal in land and marine fishes for economic and ecological advancement.

The Present Book Applied Fishery Science Is The Outcome Of The Intensive Efforts Made By The Author For More Than Five Consecutive Years To Bring The Universally Spread Documented Informations And Data, Both Traditional As Well As Research Oriented Recent Findings, Before The Scientific World In A Consolidated Form, Specially Before Those Who Are Concerned With Fish Farming And For Capture Of Fishes From Varied Water Sources. Several Valuable Informations Have Been Provided On The Fish Farming Requisites, Such As Methods Of The Quality Fish Seed Procurement, Their Safe Transportation, Design And Layout For The Construction Of New Ponds, Maintenance Of Required Water Quality In The Ponds, Availability Of Choiced Food Items At Proper Times, Use Of Right Kinds Of Fertilizers And Provision Of Supplementary Feeds At Emerging Times. Infrastructural Details And Operation Methods Of Fishing Gears And Some Informations On Related Accessaries, Particularly Trawlers, Fishing Boats And Vessels And Several Kinds Of Crafts, Traps And Angling Implements To Catch Sporting Fishes Have Been Given With Lucid Illustrations. Presentation Of Recent Data On Fish Catches (Year-Wise In Most Cases) Has Enhanced The Quality Of Book.Matters, On Several Specific Topics Like Hilsa Culture, Trout Culture, Live-Fish Culture, Cage Culture, Paddy-Cum-Fish Culture, Integrated Fish Culture, Brackish Water Fish Culture, Prawn Culture, Shrimp Culture, Molluscan Fisheries, Recent Aquaculture Practices And Useful Seaweeds And Algal Products, Have Been Beautifully Described In The Book. Trade And Commerce Prospects With The Inclusion Of Accounts Of Fish Processing, Fish Preservation, Various Kinds Of Fish By-Products And Scope Of Marketing Of Fish Have Been Made Highly Explicit.A Fine Attempt Has Been Made To Provide As Many As Fifty One Aspects Of Applied Fishery Science, Merging Together In One Book In Order To Meet The Requirements Of Sylabi Of Universities, Technical/Professional Institutions, Advanced Centres Of Fisheries Education And Research. It Is Hoped That The Academicians, Researchers/Fishery Scientists, Graduate And Post-Graduate Students Of Fishery Science Will Cherish The Author S Endeavour In Finding Appreciable Utility Of The Book.

The main objective of this manual is to present the basic and standard concepts of sampling methods applied to fisheries science. In order to ensure sound fisheries research, it is essential to have reliable data from landing ports, fishery stocks and research surveys. A rational management of fishing resources can then be established to ensure a sustainable exploitation rate and responsible fisheries management, providing long-term benefits for all. This document provides an introduction to sampling theory and introduces the theory of the three worlds (population, sample and sampling), as well as a short revision of probability concepts. It also provides an overview of the simple random, random stratified, cluster and two-stage sampling methods. The expressions for estimating the mean and total of the populations, their sampling distributions, the expected values, the sampling variances and their estimates are included and justified for each of the sampling designs. The document also contains a case study of biological sampling from landing ports and exercises that should be used to further understanding of the objectives of sampling and its advantages for fishery resource studies.

Drawing on a number of case studies from around the world, this publication considers how the local knowledge and practices of indigenous fishing communities are being used in collaboration with scientists, government managers and non-governmental organisations to establish effective frameworks for sustainable fisheries science and management. It seeks to contribute towards achieving the goal of establishing international responsibility for the ethical collection, preservation, dissemination and application of fishers' knowledge.

In this 1994 book, Tim Smith examines the economic and political pressures which have affected fisheries science, and the problems that still face it. This is a fascinating resource for all those interested in the way fisheries science has developed in the last 150 years.

"Through more than 30 original case studies related to contemporary conservation and management issues in fisheries, this new book challenges student to develop critical-thinking and problem-solving skills that will serve them as future natural resource professionals. Intended to encourage students to go beyond the 'information' level of many science texts, these case studies have no 'right answers'. Many of the cases are presented in a dilemma format, where students are asked to assess information from a variety of sources, find additional information as needed, and propose and evaluate alternative solutions. Cases are approached from a variety of dimensions (biological, ecological, political, cultural, and socioeconomic) and stakeholder perspectives. Spiral binding allows the book to lie flat for easy reference during classroom discussions and activities."--Publisher's description.

Fisheries form an important sector of the country s economy in terms of food supply, employment, income and foreign exchange earnings. Fishes are one of the important sources of cheap protein food for the people and millions of fishermen and several industries depend on this source. The present book is based on recent views, ideas and progress in the field of fisheries. The book contains some important aspects of applied fisheries. It covers topics such as live feed organisms in prawns, hatcheries culture and breeding of magur and murrels, impact of exotic fishes on indigenous fish fauna, fisheries cooperatives, marketing etc. The book will be of invaluable help to teachers, students, researchers and all those who are interested in the fisheries. Contents Chapter 1: Live Feed Organisms in Prawn Hatcheries; Chapter 2: Bheries; Chapter 3: Paddy-cum-Fish Culture; Chapter 4: Fish-cum-Duck Farming; Chapter 5: Bundh Breeding of Fishes; Chapter 6: Role of Soil and Water Quality in Fish Culture; Chapter 7: Aquatic Weeds; Chapter 8: impact of Exotic Fishes on Indian Fish Fauna; Chapter 9: Estuarine Fisheries; Chapter 10: Fisheries of Lakes; Chapter 11: Reservoir Fishery of India; Chapter 12: Fisheries Institutions in India; Chapter 13: Culture and Breeding of Murrels; Chapter 14: Culture and Breeding of Magur; Chapter 15: White Spot Disease (WSD) in Prawn; Chapter 16: Epizootic Ulcerative Syndrome (EUS) in Fishes; Chapter 17: Hilsa: The King of Fishes; Chapter 18: Fisheries Cooperatives in India; Chapter 19: Fish Marketing in India: A Case Study of Howrah Fish Market; Chapter 20: Socio-economic Status of Fishermen; Chapter 21: Crafts and Gears Used in Fisheries.

It is now clear that data based on the studies of fish eggs and larvae make a number of unique contributions to fishery science that are crucial for accurate assessment and management of fish populations, including those of commercially important fisheries. This valuable book demonstrates why fish eggs and larvae are important, how the characteristics of early life stages require a somewhat different research approach and how information on early life stages can be applied and interpreted to yield unique insights into fish populations. The editors of Fishery Science have drawn together an extremely useful and well-written book with contributions from internationally respected researchers from North America, Asia and Europe. Chapters include a discussion of the unique nature of early life stages, age and growth, mortality, recruitment, populations analysis, habitats, human impacts and management. A carefully selected set of case studies demonstrates several specific applications of early life history information to a number of fishery problems. Fishery Science was designed to complement existing textbooks and is an essential purchase for all fisheries students and professionals, and for biologists working on the early life stages of fish. This exciting book is also of great value to ecologists, marine, freshwater and environmental scientists, populations biologists and oceanographers. All libraries in universities and research establishments where biological and fishery science are studied and taught should have copies of this book available on their shelves.