Biology and Culture of Portunid Crabs of World Seas
Biology and Culture of Portunid Crabs of World Seas

Author: Ramasamy Santhanam

Publisher: CRC Press

Published: 2018-01-09

Total Pages: 318

ISBN-13: 1351795147

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Biology and Culture of Portunid Crabs of World Seas provides an abundance of valuable first-hand information about the diversity, biology, ecology culture of the portunid crabs of the word seas. Marine crabs play an important role directly or indirectly in the livelihood of millions of people around the world. They have been reported to make up about 20% of all marine crustaceans caught, farmed, and consumed worldwide. Among these marine crabs, portunid crabs or swimming crabs of the family Portunidae (Class: Crustacea; Order: Decapoda; Infraorder: Brachyura) assume greater significance in the marine industry owing to their delicate meat with nutritional qualities. Although, several species of portunid crabs are edible and commercially important, only a few species of Scylla and Portunus have been widely cultivated. This is largely due to the lack of information on the biology of portunid crabs. Keeping this in view, this new volume presents the biology and aquaculture of marine portunid crabs. This volume will be of great use for researchers and students of disciplines such as fisheries science, marine biology, aquatic biology and fisheries and zoology and will also serve as a standard reference for college, university, and research libraries around the world.

Tropical Mariculture
Tropical Mariculture

Author: Sena S. De Silva

Publisher: Academic Press

Published: 1998-08-19

Total Pages: 497

ISBN-13: 0080543308

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Tropical Mariculture takes an in-depth look at developmental activities in a growing industry striving towards sustainability and environmental integrity. All of the contributors to this book have considerable experience and expertise in the field of tropical mariculture, and this is the first book to bring expert contributions together. The topics covered are wide and varied, ranging from general issues such as the impact of mariculture on coastal ecosystems to genetic improvement of cultured marine species, as well as the specifics of breeding selected marine species of current importance, such as groupers and sea bass. Significant coverage is also given to the problems of larval rearing in inland aquaculture as well as the demands of water- and land-based resources in a tropical environment. This book will be essential for everyone working in and researching tropical mariculture. - Looks at developmental activities in tropical mariculture - All of the contributors are experts in the field - Covers specific breeding problems and larval rearing - Studies the environmental impact of inland aquacultural activities - Provides detailed examples of cultivated species in the tropics - Compiles mariculture strategies and discusses example species - First book to give an overview of tropical mariculture

Ecosystem Approaches to Fisheries
Ecosystem Approaches to Fisheries

Author: Villy Christensen

Publisher: Cambridge University Press

Published: 2011-03-03

Total Pages: 343

ISBN-13: 1139493760

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Inspired by the work of the renowned fisheries scientist Daniel Pauly, this book provides a detailed overview of ecosystem-based management of fisheries. It explores the complex and interdisciplinary nature of the subject by bringing together contributions from some of the world's leading fisheries scientists, managers and conservationists. Combining both research reviews and opinion pieces, and reflecting the breadth of Pauly's influence within the field, the book illustrates the range of issues associated with the implementation of the ecosystem approach and the challenge of long-term sustainability. Topics covered include global biodiversity, the impact of human actions on marine life, the implications for economic and social systems and the role of science in communicating and shaping ocean policy to preserve resources for the future. This book provides a complete and essential overview for advanced researchers and those just entering the field.

Planning for aquaculture diversification: the importance of climate change and other drivers
Planning for aquaculture diversification: the importance of climate change and other drivers

Author: Food and Agriculture Organization of the United Nations

Publisher: Food & Agriculture Org.

Published: 2018-05-31

Total Pages: 166

ISBN-13: 9251097887

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FAO Fisheries and Aquaculture Proceedings These proceedings, from a workshop convened by FAO and World Fisheries Trust (Canada), summarize diversification successes and opportunities in all major world regions, and identify general principles to guide diversification in aquaculture.The document includes an assessment of main strategies and future steps, not only in terms of purely economic costs but also in development costs, including evaluation and mitigation of environmental and social impacts and establishment of species-specific biosecurity frameworks.

Marine Fish Culture
Marine Fish Culture

Author: John W. Tucker Jr.

Publisher: Springer Science & Business Media

Published: 2012-12-06

Total Pages: 755

ISBN-13: 1461549116

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4 Water Sources ........................................ 149 Criteria ............................................. 149 Major types .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 150 . . . . . . . . . . . . Summary ............................................ 152 5 Water Treatment ...................................... 155 Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 155 . . . . . . . . . . . . Materials ............................................ 155 Treatment options . . . . . . . . . . . . . . . . . . . . . . . . . . . 156 . . . . . . . . . . . System design ........................................ 169 System monitoring and control . . . . . . . . . . . . . . . . . . . . . 172 . . . . . . . . Environmental considerations .............................. 174 Summary ............................................ 174 6 Culture Units ......................................... 175 Considerations in choosing culture units ...................... 175 Characteristics of culture units . . . . . . . . . . . . . . . . . . . . . 175 . . . . . . . . Applications of culture units .............................. 191 Hatchery design " . . . . . . . . . . . . . . . . . . . . . . . . . . 208 . . . . . . . . . . . Summary ............................................ 210 7 Obtaining Fish for Stocking . ............................. 211 Stock from the wild .................................... 211 Stock from the hatchery ................................. 211 Spermatogenesis (sperm formation) ....................... 232 Oogenesis (egg formation) ............................. 232 Oocyte maturation ................................... 233 Endocrine control of oocyte maturation and ovulation .......... 237 fuduced ovulation . . . . . . . . . . . . . . . . . . . . . . . . . . 238 . . . . . . . . . . Timing and egg quality . . . . . . . . . . . . . . . . . . . . . . . 257 . . . . . . . . . Artificial fertilization ................................. 265 Care of eggs ....................................... 267 Storage of gametes ................. ' .................. 269 Natural ovulation . . . . . . . . . . . . . . . . . . . . . . . . . . 270 . . . . . . . . . . Care of broodfish . . . . . . . . . . . . . . . . . . . . . . . . . . 289 . . . . . . . . . . Egg collection .. . . . . . . . . . . . . . . . . . . . . . . . . . . 290 . . . . . . . . . . fuduced vs natural ovulation ............................ 290 Broodfish adaptability . . . . . . . . . . . . . . . . . . . . . . . . . 291 . . . . . . . . . . Examples ............................................ 291 Genetic considerations . . . . . . . . . . . . . . . . . . . . . . . . . 295 . . . . . . . . . . Hybridization . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 296 . . . . . . . . . . . . Sex control .......................................... 296 Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 298 . . . . . . . . . . . . . vi 8 Nutrition of Larval Fish . . . . . . . . . . . . . . . . . . . . . . . 299 . . . . . . . . . . Feeding criteria ....................................... 299 Choice and culture of foods . . . . . . . . . . . . . . . . . . . . . . 307 . . . . . . . . . General feeding practices . . . . . . . . . . . . . . . . . . . . . . . 336 . . . . . . . . . . Specific feeding practices ................................ 352 General methods used in our hatchery . . . . . . . . . . . . . . . . . 372 . . . . . . . Industrial-scale larval food processing in Italian hatcheries ......... 373 Summary ............................................ 374 9 Nutrition of Juvenile and Adult Fish ...................... 375 ............................. 375 Requirements and components Broodstock nutrition .................................... 407 Nutritional disorders .................................... 408 Environmental considerations . . . . . . . . . . . . . . . . . . . . . 411 . . . . . . . . . Feed studies . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 411 . . . . . . . . . . . . Suggested feed formulas ................................. 460 Making and storing feeds ................................ 461 Feeding methods ...................................... 464 Summary ............................................ 467 10 Energetics ............................................ 469 Energy budget components and influencing factors . . . . . . . . . . . 469 . . . .