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Author : John R. Hilsinger
Publisher :
ISBN 13 :
Total Pages : 58 pages
Book Rating : 4.:/5 (318 download)
Download or read book The Alaska Snow Crab, Chionoecetes Bairdi written by John R. Hilsinger and published by . This book was released on 1975 with total page 58 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : John R. Hilsinger
Publisher :
ISBN 13 :
Total Pages : 88 pages
Book Rating : 4.:/5 (155 download)
Download or read book Aspects of the Reproductive Biology of Female Snow Crabs, Chionoecetes Bairdi, from Prince William Sound, Alaska written by John R. Hilsinger and published by . This book was released on 1975 with total page 88 pages. Available in PDF, EPUB and Kindle. Book excerpt: The reproductive biology of the female snow crab, Chionoecetes bairdi, from Prince William Sound, Alaska is examined. Size at 50% maturity is 80 mm carapace width. All but a few females undergo a terminal anecdysis after maturity. Primiparous spawners molt to maturity and mate in winter or early spring while multiparous spawners extrude their eggs in May. Egg hatching occurs in both groups in April or May. All recently molted females and 90% of the old shell females are ovigerous. Egg number decreases from an average of 169,000 eggs per female after extrusion to 133,000 eggs per female before hatching. The ratio of females to males increases with size. This relationship is used to predict a ratio of 2.1 females per male at 96 mm, the average size of adult females. A comprehensive bibliography is given on the genus Chionoecetes.
Author : A. J. Paul
Publisher :
ISBN 13 :
Total Pages : 58 pages
Book Rating : 4.:/5 (318 download)
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.
Author : Evan Haynes
Publisher :
ISBN 13 :
Total Pages : 6 pages
Book Rating : 4.:/5 (417 download)
Download or read book Description Of Stage Ii Zoeae Of Snow Crab, Chionoecetes Bairdi, (Oxyrhyncha, Majidae) From Plankton Of Lower Cook Inlet, Alaska written by Evan Haynes and published by . This book was released on 1981 with total page 6 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : William E. Donaldson
Publisher :
ISBN 13 :
Total Pages : 310 pages
Book Rating : 4.:/5 (319 download)
Download or read book Kodiak Alaska Tanner Crab (Chionoecetes Bairdi) Research written by William E. Donaldson and published by . This book was released on 1977 with total page 310 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : John R. Hilsinger
Publisher :
ISBN 13 :
Total Pages : 25 pages
Book Rating : 4.:/5 (626 download)
Download or read book Aspects of the Reproductive Biology of Female Snow Crabs, Chionoecetes Bairdi, from Prince William Sound and the Adjacent Gulf of Alaska written by John R. Hilsinger and published by . This book was released on 1976 with total page 25 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Albert E. Adams
Publisher :
ISBN 13 :
Total Pages : 162 pages
Book Rating : 4.:/5 (319 download)
Download or read book The Life History of the Snow Crab, Chionoecetes Opilio written by Albert E. Adams and published by . This book was released on 1979 with total page 162 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : National Research Council Canada
Publisher : NRC Research Press
ISBN 13 : 9780660172217
Total Pages : 484 pages
Book Rating : 4.1/5 (722 download)
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.
Author : Bradley G. Stevens
Publisher : CRC Press
ISBN 13 : 1439855420
Total Pages : 624 pages
Book Rating : 4.4/5 (398 download)
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
Author :
Publisher :
ISBN 13 :
Total Pages : 466 pages
Book Rating : 4.3/5 (555 download)
Download or read book Bering Sea Aleutian Islands Crab Fisheries written by and published by . This book was released on 2004 with total page 466 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Luke S. Jadamec
Publisher : Alaska Sea Grant College Program
ISBN 13 :
Total Pages : 86 pages
Book Rating : 4.:/5 (318 download)
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.
Author : William E. Donaldson
Publisher :
ISBN 13 :
Total Pages : 244 pages
Book Rating : 4.:/5 (39 download)
Download or read book Alaska Tanner Crab (Chionoecetes Bairdi) Investigations written by William E. Donaldson and published by . This book was released on 1980 with total page 244 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : William A. Colgate
Publisher :
ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (1 download)
Download or read book Investigations of Life History and Fishery for Tanner Crab (Chionoecetes Bairdi) in Alaska written by William A. Colgate and published by . This book was released on 1981 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : A. J. Paul
Publisher : Alaska Sea Grant College Program
ISBN 13 :
Total Pages : 888 pages
Book Rating : 4.:/5 (318 download)
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.
Author : Daniel Urban
Publisher :
ISBN 13 :
Total Pages : 15 pages
Book Rating : 4.:/5 (162 download)
Download or read book Biology of the Tanner Crab, Chionoecetes Bairdi, in Alaska written by Daniel Urban and published by . This book was released on 1999 with total page 15 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Joel Benjamin Webb
Publisher :
ISBN 13 :
Total Pages : 292 pages
Book Rating : 4.:/5 (9 download)
Download or read book Reproductive Potential of Snow and Tanner Crab in Alaska written by Joel Benjamin Webb and published by . This book was released on 2014 with total page 292 pages. Available in PDF, EPUB and Kindle. Book excerpt: Fisheries for snow (Chionoecetes opilio) and Tanner (C. bairdi) crab in Alaska are managed with large male only harvest regulations. Management of sex-selective crab fisheries could be enhanced by improved understanding of the functional relationship between male harvest and female reproductive potential. This research advances knowledge of factors associated with variation in reproductive potential by characterizing factors influencing female sperm reserves for Tanner crab, identifying factors associated with variability in fecundity for female snow crab in the eastern Bering Sea (EBS), and developing refined indices of egg (embryo) production and recruitment for snow crab that revealed a positive functional relationship that has not been previously described for this stock. Sperm reserves of female Tanner crab varied with mature female ontogeny, sex ratio, and harvest. Increasing exploitation rate is associated with decreased average sperm reserves of primipara (first reproductive cycle) while increased availability of large, sexually-dominant, adult males, was associated with increased cumulative sperm reserves for multipara (second or greater reproductive cycle) among Tanner crab stocks. A white-layer of fresh ejaculate in the spermathecae (sperm-storage organ) was a robust indicator of increased sperm reserves in both primiparous and multiparous females and is likely a useful tool for evaluating risk of sperm limitation in Chionoecetes. Fecundity of female snow crab in the EBS was influenced by both intrinsic and extrinsic factors. Fecundity increased with increasing female size and decreased for older multipara likely due to senescence. Variability in fecundity-at-size was higher among multipara than primipara and this may be associated with contrasting mating dynamics, tempo of reproduction, maternal age, or environmental influences on maternal condition. Mating success may also influence fecundity of multiparous females; females with fresh ejaculate had higher fecundity (~10%) than those that did not. Substantial embryo loss during brooding was not observed for snow crab, and embryo quality did not vary with female size or age relative to maturity. Refining indices of female reproductive potential with demographic and fecundity information resulted in reduced estimates of reproductive output. A positive functional relationship between reproductive potential and recruitment was detected at a lag of four years due to coherence between high reproductive output in the late 1980s and strong recruitment in the early 1990s. Stock productivity reached a minimum thereafter, preceding a rapid decline in mature abundance.
Author : Minna Isavna Tarverdieva
Publisher :
ISBN 13 :
Total Pages : 26 pages
Book Rating : 4.:/5 (173 download)
Download or read book On the Feeding of Snow Crabs Chionoecetes Opilio and Ch. Bairdi in the Bering Sea written by Minna Isavna Tarverdieva and published by . This book was released on 1982 with total page 26 pages. Available in PDF, EPUB and Kindle. Book excerpt:
