Download or read book Outlook for Establishing a Fishery for the Green Sea Urchin Strongylocentrotus Droebachiensis in the St Lawrence River written by D. E. Kramer and published by . This book was released on 1980 with total page 52 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Assessment of the Green Sea Urchin Fishery in the Northern Estuary and Gulf of St Lawrence in 2015 written by and published by . This book was released on 2016 with total page 14 pages. Available in PDF, EPUB and Kindle. Book excerpt: "The commercial Green Sea Urchin (Strongylocentrotus droebachiensis) fishery began in the Estuary and northern Gulf of St. Lawrence in 1991. Fourteen areas were created (Figure 1); however, many are still unfished or underutilized. Although trap fishing is permitted, green sea urchins are mainly collected by diving. Current management measures include a limited number of licences per area, a minimum catch size of 50 mm test diameter and dive fishing seasons generally set from the end of March to the end of December. Harvesting takes place once the ice cover opens up and the gonad yield increases from the end of March to May and from September to December."--Context, p. [1].
Download or read book Management Thresholds in the Maine Green Sea Urchin Fishery written by Shannon Post and published by . This book was released on 1998 with total page 346 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Edible Sea Urchins Biology and Ecology written by John M. Lawrence and published by Elsevier. This book was released on 2006-12-07 with total page 557 pages. Available in PDF, EPUB and Kindle. Book excerpt: Sea urchins are a major component of the world ocean. They are important ecologically and often greatly affect marine communities. They have an excellent fossil record and consequently are of interest to paleontologists. Research has increased in recent years stimulated first by a recognition of their ecological importance and then because of their economic importance. Scientists around the world are actively investigating their potential for aquaculture. This book is designed to provide a broad understanding of the biology and ecology of sea urchins. Synthetic chapters consider biology of sea urchins as a whole to give a broad view. The topics of these chapters include reproduction, metabolism, endocrinology, larval ecology, growth, digestion, carotenoids, disease and nutrition. Subsequent chapters consider the ecology of individual species that are of major importance ecologically and economically. These include species from Japan, New Zealand, Australia, Europe, North America, South America and Africa. * First comprehensive book devoted to the biology and ecology of sea urchins * NEW chapter on Nutrition of Sea Urchins and Ecology of Diadema * Brand NEW illustrations * Hot NEW topic: Immunology of the Sea Urchin * Chapters written by internationally recognized experts * Each chapter revised and updated from the first edition * Biological chapters include reproduction, endocrinology, carotenoids and disease * Ecological chapters include species of major economic interest for fisheries and aquaculture
Download or read book Proceedings of the Green Sea Urchins Regional Advisory Process Maritimes Region written by and published by . This book was released on 2000 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Proceedings of the Green Sea Urchins Regional Advisory Process Maritimes Region written by and published by . This book was released on 2000 with total page 27 pages. Available in PDF, EPUB and Kindle. Book excerpt: The meeting reported in this publication was held to conduct a peer review of the status & sustainability of green sea urchin resources in the Maritimes Region. Two working papers were reviewed and formed the basis for stock status reports for sea urchins in each of Nova Scotia and New Brunswick. Topics covered include urchin fisheries, recruitment, exploitation rates, and assessment methods. Recommendations for research are included.
Download or read book Stock Status Update and Harvest Options for the Green Sea Urchin Strongylocentrotus Droebachiensis Fishery in British Columbia 2016 2019 written by and published by . This book was released on 2016 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: DFO Fisheries Management has requested advice for the Green Sea Urchin fishery in British Columbia (BC), by spring 2016, on the following: 1. The ranges of sustainable harvest options for the commercial harvest areas (Pacific Fisheries Management Areas (PFMAs) 12, 13, 18 and 19); 2. The risks or uncertainties associated with the range of harvest options; 3. The recent trends in the local populatio [...] Markets have improved recently and 82% and 67% of the TAC was achieved in the 2013-14 and 2014-15 fishing seasons, respectively. [...] The TRPs are defined as various reductions from the estimated median of the MSY posterior distribution, along with the probabilities that the TRPs may be larger than the true MSY (Table 1). [...] Table 1. Target reference points (TRPs) in metric tonnes as reductions from the estimated median maximum sustainable yield (MSY), the % probability the target reference point (TRP) may be greater than or equal to the true MSY, and allocation of the total quota to each of the two fishing regions: (A) PFMAs 12 and 13 and (B) PFMAs 18 and 19. [...] For instance, the model assumes that surplus production (amount of increase in biomass of the stock) at any given year is related to the biomass in the previous year, without considering a time lag for larvae or juveniles to grow before contributing to the harvestable biomass.
Download or read book The Green Sea Urchin written by Eric W. Way and published by . This book was released on 1986 with total page 8 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Sea Urchins written by John M. Lawrence and published by Academic Press. This book was released on 2013-05-31 with total page 559 pages. Available in PDF, EPUB and Kindle. Book excerpt: This fully revised and expanded edition of Sea Urchins provides a wide-ranging understanding of the biology and ecology of this key component of the world's oceans. Coverage includes reproduction, metabolism, endocrinology, larval ecology, growth, digestion, carotenoids, disease and nutrition. Other chapters consider the ecology of individual species that are of major importance ecologically and economically, including species from Japan, New Zealand, Australia, Europe, North America, South America and Africa. In addition, six new contributions in areas such as immunology, digestive systems and community ecology inform readers on key recent developments and insights from the literature.Sea urchins are ecologically important and often greatly affect marine communities. Because they have an excellent fossil record, they are also of interest to paleontologists. Research on sea urchins has increased in recent years, stimulated first by recognition of their ecological importance and subsequently their economic importance. Scientists around the world are actively investigating their potential for aquaculture and fisheries, and their value as model systems for investigations in developmental biology continues to increase. Continues the series "Developments in Aquaculture and Fisheries Science" with a newly revised volume Collects and synthesizes the state of knowledge of sea urchin biology and ecology Expanded from previous edition to include non-edible species, providing the needed basis for broader evolutionary understanding of sea urchins
Download or read book Edible Sea Urchins Biology and Ecology written by John M. Lawrence and published by Elsevier. This book was released on 2001-05-21 with total page 429 pages. Available in PDF, EPUB and Kindle. Book excerpt: Sea urchins are a major component of marine environments found throughout the world's oceans. A major model for research in developmental biology, they are also of major economic importance in many regions and interest in their management and aquaculture has increased greatly in recent years. This book provides a synthesis of biological and ecological characteristics of sea urchins that are of basic scientific interest and also essential for effective fisheries management and aquaculture. General chapters consider characteristics of sea urchins as a whole. In addition, specific chapters are devoted to the ecology of 17 species that are of major commercial interest and ecological importance. Features include: • A synthesis of what is known about the basic biological characteristics of the sea urchin, useful for the direction of future research. • Case histories of 17 species that illustrate their ecological role in a variety of environments. • With the catastrophic decline in fisheries resulting primarily from over-fishing, it is essential that the populations be managed effectively and that aquaculture be developed. This book provides knowledge of the biology and ecology of the commercially important sea urchins that will contribute to these goals. • The only book available in present literature devoted to sea urchins. With this new title experts provide a broad synthetic treatment and in depth analysis of the biology and ecology of sea urchins from around the world, designed to provide an understanding of the group and the basis for fisheries management and aquaculture.
Download or read book Surveys on Green Sea Urchin Strongylocentrotus Droebachiensis Populations in Queen Charlotte Strait British Columbia October 1995 and March 1996 microform written by Canada. Department of Fisheries and Oceans and published by Nanaimo, B.C. : Fisheries and Oceans Canada, [199-]. This book was released on 1997 with total page 36 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Monitoring Assessment and Management of the Green Sea Urchin Strongylocentrotus Droebachiensis Fishery in Maine written by Kate Jones and published by . This book was released on 2006 with total page 182 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Maine Green Sea Urchin Fishery written by Caitlin Cleaver and published by . This book was released on 2014 with total page 126 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Biology of Echinodermata written by T. Yanagisawa and published by CRC Press. This book was released on 1991-06-01 with total page 616 pages. Available in PDF, EPUB and Kindle. Book excerpt: The proceedings of the Seventh International Echinoderm Conference, held at Atami, Japan, September 1990. In addition to sections covering ecology, evolution, reproduction, morphology, molecular biology, developmental biology, physiology, behavior, and paleontology, there are four plenary lectures a
Download or read book Green Sea Urchin of the Inshore Waters of Quebec written by and published by . This book was released on 2000 with total page 8 pages. Available in PDF, EPUB and Kindle. Book excerpt: This report begins with biological information on the green sea urchin (Strongylocentrotus droebachiensis) as well as an overview of the fishery. It then presents an assessment and outlook of the stock in 3 sectors: Gaspé; North Shore; Magdalen Islands. Finally, it discusses certain management issues related to conservation and monitoring of the stock.
Download or read book The Green Sea Urchin in Maine written by Stanley B. Chenoweth and published by . This book was released on 1992 with total page 8 pages. Available in PDF, EPUB and Kindle. Book excerpt:
