Download or read book Stock Structure Life History Fishery and Abundance Indices for Spiny Dogfish Squalus Acanthias in Atlantic Canada written by Steven E. Campana and published by . This book was released on 2008 with total page 132 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book General Fisheries Commission for the Mediterranean Report of the forty fifth session written by Food and Agriculture Organization of the United Nations  and published by Food & Agriculture Org.. This book was released on 2023-06-09 with total page 253 pages. Available in PDF, EPUB and Kindle. Book excerpt: This report summarizes the discussions held during the forty-fifth session of the General Fisheries Commission for the Mediterranean and twelfth session of the Committee on Administration and Finance. During the session, progress in activities related to fisheries, aquaculture, compliance and other strategic activities was reviewed. The Commission adopted 17 binding recommendations and four resolutions related to fisheries management and conservation, aquaculture and compliance. Moreover, the Commission adopted the revised GFCM Rules of Procedure and approved the proposal for the appointment of the new GFCM Executive Secretary. Finally, the Commission adopted its programme of work for the next intersession and approved its autonomous budget for 2023, 2024 and 2025, as well as a number of strategic actions to be funded through extrabudgetary resources. The Commission also endorsed the new Bureau of the Committee on Administration and Finance and extended the mandate of the Bureau of the Scientific Advisory Committee on Aquaculture until 2024.

Download or read book The Spiny Dogfish Squalus Acanthias in the Northeast Pacific and a History of Its Utilization written by K. S. Ketchen and published by Fisheries and Oceans, Scientific Information and Publications Branch. This book was released on 1986-01-01 with total page 78 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Canadian Journal of Fisheries and Aquatic Sciences written by and published by . This book was released on 2014-05 with total page 666 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book The Spiny Dogfish Squalus Acanthias in the Northeastern Pacific written by Dayton L. Alverson and published by . This book was released on 1963 with total page 36 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Overview of Discards from Canadian Commercial Fisheries in NAFO Divisions 4V 4W 4X 5Y and 5Z for 2002 2006 written by Stratis Gavaris and published by . This book was released on 2010 with total page 122 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Life History Demography and Ecology of the Spiny Dogfish Squalus Acanthias in the Gulf of Alaska written by Cindy Ann Tribuzio and published by . This book was released on 2010 with total page 366 pages. Available in PDF, EPUB and Kindle. Book excerpt: "The spiny dogfish (Squalus acanthias) is a small, cosmopolitan shark species, common in sub-tropical and sub-arctic waters. The species is often targeted commercially in most areas of the world throughout it's range, and in some cases it is overfished or the subject of conservation concern. In the Gulf of Alaska, spiny dogfish are not targeted and not generally retained, but incidental catches can be high for this schooling species. Previously, biological parameters for spiny dogfish in the Gulf of Alaska were assumed from estimates for this specie's neighboring areas, including British Columbia and Washington State. The purpose of this study was to examine spiny dogfish in the Gulf of Alaska and estimate important parameters for stock assessment in four stages: (1) general biology, distribution, and life history; (2) modeling age and growth; (3) population demographic modeling; and (4) ecological interactions revealed by diet analysis. Spiny dogfish are similar in length in the Gulf of Alaska to neighboring regions, but mature at larger sizes and have a greater fecundity than reported elsewhere. There is high natural variability in estimated ages for the species, which is reflected in the poor lit of the growth models, possibly owing to measurement error from using the dorsal fin spine as the aging structure. A two-phase growth model provided the statistical best fit. However, questions were raised about the biological interpretation of the model and whether more traditional models (e.g., von Bertalanffy and Gompertz) may be more appropriate. Using the life-history and growth data, Leslie matrix type, age- and stage based demographic models were created to estimate sustainable fishing mortality rates and to examine the risk of harvest scenarios. Female Gulf of Alaska spiny dogfish can support up to a 3% annual harvest rate; fisheries that target juveniles have the greatest risk of population decline below threshold levels. Spiny dogfish are generalist opportunistic feeders that feed on whichever prey is available, however shrimp are the most important prey type, followed by cephalopods. Results of this study will be used in future ecosystem modeling and stock assessments for this species. Waking into account the history of targeted fisheries for the species on the U.S. east coast and in British Columbia and Washington, as well as the susceptibility of the species to overfishing, fishery managers will need to take a cautious approach should a target fishery develop in the Gulf of Alaska"--Leaves iii-iv.

Download or read book FAO Informes de Pesca written by FAO Expert Advisory Panel for the Assessment of Proposals to Amend Appendices I and II of CITES Concerning Commercially-Exploited Aquatic Species and published by . This book was released on 2010 with total page 170 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Updated Life History and Population Structure Assessment of Spiny Dogfish Squalus Acanthias in the Gulf of Maine written by Walter Bubley and published by . This book was released on 2010 with total page 288 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Essential Fish Habitat Source Document written by Donald G. McMillan and published by . This book was released on 1999 with total page 19 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Report of the Third FAO Expert Advisory Panel for the Assessment of Proposals to Amend Appendices I and II of CITES Concerning Commercially Exploited Aquatic Species written by FAO Expert Advisory Panel for the Assessment of Proposals to Amend Appendices I and II of CITES Concerning Commercially-Exploited Aquatic Species and published by Fao Inter-Departmental Working Group. This book was released on 2010 with total page 170 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Panel was convened in response to the agreement by the twenty-fifth session of the FAO Committee on Fisheries on the terms of the reference for an Expert advisory panel for assessment of proposal to the Convention on International Trade in Endangered Species of Wild Fauna and Flora (CITES), and to the endorsement of the 26th Session of the COFI. This Report includes the assessment of each of the six proposal made by the Panel. Available in French and Spanish.

Download or read book Updated Relative Abundance Indices and Catch at length Estimates for Spiny Dogfish Squalus Acanthias in SPD 3 and 5 to the End of the 2005 06 Fishing Year written by M. J. Manning and published by . This book was released on 2009 with total page 89 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book The Life history of the Spiny Dogfish squalus Acanthias written by Wilfred Templeman and published by St. John's, Nfld. : Department of Natural Resources. This book was released on 1944 with total page 108 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Life History Characteristics of the Spiny Dogfish Squalus Acanthias of North Carolina written by Lisa Nicole Litwak and published by . This book was released on 2016 with total page 76 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Life History and Management of Spiny Dogfish Squalus Acanthias Off the Northeastern United States written by Marta F. Nammack and published by . This book was released on 1982 with total page 128 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Proceedings of the Regional Peer Review of the Northwest Atlantic Spiny Dogfish Squalus Acanthias Framework and Assessment written by and published by . This book was released on 2016 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: The meeting was reconvened on May 29, 2014, at the Bedford Institute of Oceanography, to complete the assessment and finalize the Science Advisory Report. [...] Although the Spiny Dogfish population is considered one metapopulation, with migratory and resident components, the population model also provides regional stock abundance estimates for the Canadian and US components of the population. [...] The Canadian stock is defined as Spiny Dogfish in Canadian waters during the summer, corresponding to the timing of the Canadian DFO Summer Research Vessel (RV) survey. [...] NORTHWEST ATLANTIC SPINY DOGFISH ASSESSMENT (MAY 29, 2014) INTRODUCTION The Chair of the meeting, Tana Worcester, welcomed participants (Appendix 1B) to the conclusion of the Northwest Atlantic Spiny Dogfish framework and assessment. [...] Discussion Model Update To monitor stock status of Spiny Dogfish in Canadian waters, in the absence of US data, there was consensus during the framework meeting on January 20-21, 2014, to update the Canadian data by not including migration of Spiny Dogfish between Canada and the US (i.e., migration component turned off in model) in the 2010 population model to obtain an updated Canadian stock abun.

Download or read book The International Trade and Fishery Management of Spiny Dogfish Squalus Acanthias in Light of CITES List Insertion written by Andrea Dell'Apa and published by . This book was released on 2013 with total page 443 pages. Available in PDF, EPUB and Kindle. Book excerpt: The spiny dogfish (Squalus acanthias) is a commercial shark species that was recently considered, unsuccessfully, for inclusion in trade-regulation lists due to international concern about its conservation status. The major commercial demand for the species is from Europe, where the Northeast Atlantic stock has been managed unsuccessfully because of dysfunctionalities of EU fishery governance. The demand from the EU market is primarily for adult females, with the U.S. North Atlantic stock being one of the major contributors to this market. This primarily female fishery has led to overexploitation and a drastic reduction in both adult female biomass and juvenile recruitment in the U.S. Atlantic stock, forcing the adoption of a Fishery Management Plan (FMP) under the requirements of the U.S. fishery management system. The stock is now considered rebuilt and the U.S. Atlantic spiny dogfish fishery was recently certified as sustainable. However, new management strategies are needed to maintain fishery sustainability in the long-term. The first objective of this study was to analyze the EU trade dynamic changes associated with the introduction of the FMP by employing social network analysis. Results indicate that the EU market demand favoured the development of dogfish fisheries in several countries in order to supply to the decrease in U.S. export, eventually affecting the global conservation status of the species. Moreover, the species listing for trade regulation would benefit the U.S. and will enhance the conservation of other regional stocks worldwide. The second objective of this study was to investigate on the sex ratio changes in fishery-dependent surveys conducted off Cape Cod, Massachusetts; and to evaluate these results in light of the sexual segregation occurring in the species. Results support the development of a male-only directed fishery off the northeast portion of the Cape Cod peninsula, based on season (summer and early fall) and time of the day (early morning). This fishery would likely enhance the sustainability of the local spiny dogfish populations by reducing fishing pressure on the adult female component. Finally, results suggest that sexual segregation in S. acanthias off Cape Cod corresponds to female avoidance of males, coupled with specific mating and/or feeding behavior by males.