Download or read book Biological Field Techniques for Chionoecetes Crabs written by Luke S. Jadamec and published by Alaska Sea Grant College Program. This book was released on 1999 with total page 86 pages. Available in PDF, EPUB and Kindle. Book excerpt: "This important publication enables standardization of data collection by fisheries observers and shoreline samplers, crab and shellfish biologists, and fishermen. Wide use of the book promises to improve data accuracy, and thus promote good management for these commercially important crabs. When data are collected citing this publication, there should be little or no ambiguity as to measurements made and definitions used. This guide is not all inclusive, but is intended to identify structures and organs, measurements and descriptions, and techniques that are commonly used in field studies"--p. vi.
Download or read book Biological Field Techniques for Lithodid Crabs written by William E. Donaldson and published by . This book was released on 2005 with total page 86 pages. Available in PDF, EPUB and Kindle. Book excerpt: The harvest of Alaska king crabs in the North Pacific and Bering Sea reaches about 18 million pounds per year, one-tenth of the bonanza 1980s catch. While king crab stocks are recovering from the crash, efforts such as this book on standardizing data collection promise to further improve fishery management. Geared to fishery observers, shoreside samplers, shellfish researchers, and fishermen, the book is illustrated with line drawings, maps, and numerous color photos, and it is printed on waterproof paper. Topics include taxonomy, life history, distribution, anatomy, and diseases. The authors are expert crab biologists at Alaska Department of Fish and Game, the agency responsible for managing the crab fishery.
Download or read book In the Wrong Place Alien Marine Crustaceans Distribution Biology and Impacts written by Bella S. Galil and published by Springer Science & Business Media. This book was released on 2011-04-01 with total page 714 pages. Available in PDF, EPUB and Kindle. Book excerpt: In The Wrong Place: Alien Marine Crustaceans - Distribution, Biology And Impacts provides a unique view into the remarkable story of how shrimps, crabs, and lobsters – and their many relatives – have been distributed around the world by human activity, and the profound implications of this global reorganization of biodiversity for marine conservation biology. Many crustaceans form the base of marine food chains, and are often prominent predators and competitors acting as ecological engineers in marine ecosystems. Commencing in the 1800s global commerce began to move hundreds – perhaps thousands – of species of marine crustaceans across oceans and between continents, both intentionally and unintentionally. This book tells the story of these invasions from Arctic waters to tropical shores, highlighting not only the importance and impact of all prominent crustacean invasions in the world's oceans, but also the commercial exploitation of invasive crabs and shrimps. Topics explored for the first time in one volume include the historical roots of man's impact on crustacean biogeography, the global dispersal of crabs, barnacle invasions, insights into the potential scale of tropical invasions, the history of the world's most widely cultured shrimp, the invasive history and management of red king crabs in Norway, Chinese mitten crabs in England, and American blue crabs in Europe, the evolutionary ecology of green crabs, and many other subjects as well, touching upon all ocean shores.
Download or read book Proceedings of the North Pacific Symposium on Invertebrate Stock Assessment and Management written by National Research Council Canada and published by NRC Research Press. This book was released on 1998 with total page 484 pages. Available in PDF, EPUB and Kindle. Book excerpt: Proceedings of a symposium that focused on new, innovative evaluation of the implications and needs for changing management approaches and demands in invertebrate fishery science. Species covered in the presentations include crustaceans, gastropods, echinoderms, and bivalves. Presentations are organized in the following subject areas: assessment of abundance and related parameters; growth, mortality, and yield per recruit; spatial pattern and its implications; the fishing process; population dynamics; the fishery as a selective force; invertebrate fisheries management; and regional perspectives from the north Pacific. The proceedings conclude with a symposium overview.
Download or read book Fishery Bulletin written by and published by . This book was released on 1999 with total page 336 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book King Crabs of the World written by Bradley G. Stevens and published by CRC Press. This book was released on 2014-03-18 with total page 624 pages. Available in PDF, EPUB and Kindle. Book excerpt: With species existing in all subpolar seas, king crabs are one of the most valuable seafoods. Major fluctuations in their abundance have stimulated a flurry of research and a rapid expansion of the scientific literature in the last decade. King Crabs of the World: Biology and Fisheries Management consolidates extensive knowledge on the biology, sys
Download or read book Field Guide to Squids and Octopods of the Eastern North Pacific and Bering Sea written by Elaina M. Jorgensen and published by Alaska Sea Grant College Program. This book was released on 2009 with total page 104 pages. Available in PDF, EPUB and Kindle. Book excerpt: This handy, fully illustrated guide is designed to help researchers and scientists identify squids and octopods found in the eastern North Pacific Ocean and the Bering Sea, regions that have been difficult to sample because of their rough seas and thus have been poorly known until now. Printed on waterproof paper, the book describes and illustrates forty-four species, with full scientific details and aids to identification."
Download or read book CBM written by and published by . This book was released on 2011 with total page 566 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book King Crabs of the World written by Bradley G. Stevens and published by CRC Press. This book was released on 2014-03-18 with total page 638 pages. Available in PDF, EPUB and Kindle. Book excerpt: With species existing in all subpolar seas, king crabs are one of the most valuable seafoods. Major fluctuations in their abundance have stimulated a flurry of research and a rapid expansion of the scientific literature in the last decade. King Crabs of the World: Biology and Fisheries Management consolidates extensive knowledge on the biology, systematics, anatomy, life history, and fisheries of king crabs and presents it in a single volume. This book is the first comprehensive scientific reference devoted to the biology and fisheries of king crabs. The first part of the book describes king crabs and their place in the world, covering geographic distribution, depth and temperature ranges, and maps of known habitats. Chapters examine phylogenetic relationships, evolutionary history and phylogeography, internal and external anatomy of king crabs, and the history of North Pacific fisheries. There is also a chapter that presents a comprehensive overview of diseases and other anomalies of king crabs. The second part of the book describes the life history and biology of various king crab species, including embryonic development and environmental factors, the development and biology of larvae, the ecology and biology of juvenile stages, reproductive strategies of fished species, and the growth and feeding of king crabs and their ecological impacts. The third part of the book discusses human and environmental interactions with king crabs through fisheries, management, and ecosystems. Topics include the impacts of fishing—bycatch, handling, and discard mortality—king crab aquaculture and stock enhancement, and king crabs from various regions such as Southern Hemisphere waters, the Barents Sea, and Alaska. A chapter synthesizing various aspects of king crab biology provides an ecosystem-scale perspective and the final chapter presents the author’s outlook on the future of king crab research and populations.
Download or read book Bibliography of Research on Snow Crab Chionoecetes Opilio written by A. J. Paul and published by . This book was released on 2000 with total page 58 pages. Available in PDF, EPUB and Kindle. Book excerpt: "This bibliography of 1,050 entries brings together research on snow crab published in Japan, Russia, Canada, the United States, and other countries" -- preface.
Download or read book Crabs in Cold Water Regions written by A. J. Paul and published by Alaska Sea Grant College Program. This book was released on 2002 with total page 888 pages. Available in PDF, EPUB and Kindle. Book excerpt: An international group of specialists presented these 53 papers at the sixth crab symposium in the Lowell Wakefield symposium series at the U. of Alaska in January of 2001. The main themes include crab life cycles, reproductive biology and behavior, recruitment and population dynamics, fisheries and stock assessment, environment and habitat, and fisheries management. Individual papers present the results of research on topics that include the bitter crab syndrome in Tanner crab, re-stratification of red king crab assessment, population structure of blue king crab, habitat use by juvenile crabs, the impact of the European green crab in the Pacific, and use of tag recapture data to estimate natural mortality. Annotation copyrighted by Book News, Inc., Portland, OR.
Download or read book Sexual Biology and Reproduction in Crustaceans written by Thanumalaya Subramoniam and published by Academic Press. This book was released on 2016-09-27 with total page 528 pages. Available in PDF, EPUB and Kindle. Book excerpt: Sexual Biology and Reproduction in Crustaceans covers crustacean reproduction as it deals with the structural morphology of the gamete-producing primary sex organs, such as the testis and ovary, the formation and maturation of gametes, their fusion during fertilization, and embryonic development that lead to the release of larvae. Constituting a diverse assemblage of animals, crustaceans are best known by their common representatives, such as shrimps, lobsters, and crabs, but also include many more less familiar, but biologically important forms. This work covers the variety of ways in which both male and female gametes are produced by evolving different sexual systems in crustaceans, the range of reproductive systems, and the accordingly, and highly diverse, mechanistic modes of sex determination. In addition, the book features such topics as genetic and environmental determinants in sex determination pattern, variability of mechanisms of fertilization among different species, the origin of different mating systems, the associated mating and brooding behaviors, and the adaptive ability to different environmental conditions with discussion on the evolutionary ecology of social and sexual systems in certain species, which have shown eusocial tendencies, similar to social insects. Marine species occupying diversified ecological niches in tropical and temperate zones reproduce under definitive environmental conditions. Therefore, reproductive ecology of different crustaceans inhabiting different ecological niches also constitutes another important aspect of the work, along with yolk utilization and embryogenesis leading to release of different larval forms, which reflect on their aquatic adaptability. - Forms a valuable source of recent references on the current research in crustacean reproductive physiology - Covers various mating and breeding systems, providing illustrative examples for sexual selection, parental care of developing eggs and embryos, and the evolution of other reproductive behaviors - Features contributions written in the form of review articles, enabling readers to not only gain information in the respective subject, but also help them stimulate ideas in their chosen field of research - Includes a glossary created by the author to define technical terms - Demonstrates the ability of crustacean species to serve as useful model systems for other organisms, to investigate issues related to sexual conflict, mate choice, and sperm competition - Discusses techniques in endocrine research to help researchers in aquaculture develop protocols in the control of reproduction
Download or read book Marine invasive species in the Arctic written by Linda Fernandez and published by Nordic Council of Ministers. This book was released on 2014-08-18 with total page 201 pages. Available in PDF, EPUB and Kindle. Book excerpt: Arctic marine ecosystems are among the most productive and most vulnerable in the world, both from an economic and ecological perspective of growing accessibility. The complexity of Arctic marine ecosystems and their location poses challenges for management, valuation, and the establishment of sound policy to protect them. This special issue of Temanord presents papers from a workshop devoted to this topic. In October 2013, a group of multidisciplinary experts on marine invasive species and the Arctic came together in Esbjerg, DK for a two-day workshop titled: “Marine Invasive Species in the Arctic: Management Issues.” Attendees of the workshop came from academic, governmental and scientific institutions in Denmark and the Faroe Islands, Sweden, Norway, Finland, Iceland, Canada, and the United States. This volume presents papers based on the presentations of the workshop speakers.
Download or read book The Biology of Decapod Crustacean Larvae written by Klaus Anger and published by CRC Press. This book was released on 2001-06-01 with total page 262 pages. Available in PDF, EPUB and Kindle. Book excerpt: About 90 per cent of the 10,000 known species of the Crustacea Decapoda live in oceans and adjacent coastal and estuarine regions, and most of them pass through a complex life history comprising a benthic (juvenile-adult) and a planktonic (larval) phase. The larvae show a wide array of adaptations to the pelagic environment, including modifications in their functional morphology, anatomy, the molting cycle, nutrition, growth, chemical composition, metabolism, energy partitioning, ecology and behaviour.;All these traits are reviewed in this volume, attempting to promote an integrated, multidisciplinary view of the biology of larval Decapoda and other crustacean taxa. Emphasis is placed on the lesser-known anatomical, bioenergetic and ecophysiological aspects of larval life, as morphology has already been extensively documented. Changes in biological parameters (for example, rates of feeding, growth, metabolism) are shown in successive developmental stages, within individual stages, and as responses to environmental factors. Particular attention is paid to interrelationships between intrinsic phenomena (molting cycle, organogenesis, growth) and the overlaying effects of extrinsic factors (for example, food, temperature, salinity, pollution). Concluding from the available data, major bias and gaps in present knowledge of larval biology are identified and discussed as to their potential significance in future research.
Download or read book Field Guide to Sharks Skates and Ratfish of Alaska written by Duane E. Stevenson and published by Alaska Sea Grant College Program. This book was released on 2007 with total page 90 pages. Available in PDF, EPUB and Kindle. Book excerpt: "This book is the only comprehensive guide to 25 shark, skate, and ratfish species known to inhabit Alaska waters. Notes on identifying characteristics and life history are accompanied by color photos and drawings of nine shark, fifteen skate, and one ratfish species. Maps show ranges, and keys are provided to identify each species as well as skate egg cases. Printed on water-resistant paper for heavy use in the field, the guide is valuable to scientists, fishery managers, naturalists, science educators, ocean adventure cruisers, divers, fishermen, seafood processors, and anyone fascinated by the world's marine life"--Book jacket.
Download or read book Biodiversity of Fungi written by Mercedes S. Foster and published by Elsevier. This book was released on 2011-04-28 with total page 797 pages. Available in PDF, EPUB and Kindle. Book excerpt: Biodiversity of Fungi is essential for anyone collecting and/or monitoring any fungi. Fascinating and beautiful, fungi are vital components of nearly all ecosystems and impact human health and our economy in a myriad of ways. Standardized methods for documenting diversity and distribution have been lacking. A wealth of information, especially regrading sampling protocols, compiled by an international team of fungal biologists, make Biodiversity of Fungi an incredible and fundamental resource for the study of organismal biodiversity. Chapters cover everything from what is a fungus, to maintaining and organizing a permanent study collection with associated databases; from protocols for sampling slime molds to insect associated fungi; from fungi growing on and in animals and plants to mushrooms and truffles. The chapters are arranged both ecologically and by sampling method rather than by taxonomic group for ease of use. The information presented here is intended for everyone interested in fungi, anyone who needs tools to study them in nature including naturalists, land managers, ecologists, mycologists, and even citizen scientists and sophiscated amateurs. - Covers all groups of fungi - from molds to mushrooms, even slime molds - Describes sampling protocols for many groups of fungi - Arranged by sampling method and ecology to coincide with users needs - Beautifully illustrated to document the range of fungi treated and techniques discussed - Natural history data are provided for each group of fungi to enable users to modify suggested protocols to meet their needs
Download or read book Alaska Fishery Research Bulletin written by and published by . This book was released on 2005 with total page 508 pages. Available in PDF, EPUB and Kindle. Book excerpt:
