Download or read book Stock Assessment of Northern Cod NAFO Divs 2J3KL in 2016 written by and published by . This book was released on 2016 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: INTRODUCTION History of the Fishery Catches of northern cod increased during the 1960s to a peak of over 800,000 t in 1968, declined steadily to a low of 140,000 t in 1978, increased to about 240,000 t through much of the 1980s, and then declined rapidly in the early 1990s in advance of a moratorium on directed fishing in 1992 (Fig. [...] The Scientific Council of the Northwest Atlantic Fisheries Organization (NAFO) reported that the annual catches of cod by non-Canadian fleets outside the 200 nautical mile limit on the Nose of the Grand Bank (Div. [...] The offshore biomass of cod has increased in most of the stock area in the past decade, except in southern 3L. [...] An update of the data used to estimate the harp seal inputs for this study was presented; the estimate of abundance of harp seals is lower than the estimate used in the analysis, and the contribution of Atlantic cod to the diet has remained stable. [...] In the 2015 survey, most of the abundance (87%) and biomass (84%) is located in the northern portion of the stock area (Divs.
Download or read book Stock Assessment of Northern Cod NAFO Divs 2J3KL in 2016 written by Fisheries and published by . This book was released on 2016 with total page 17 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Northern NAFO Divs 2J3KL Cod Stock Update written by and published by . This book was released on 2015 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: A conservation limit reference point (LRP) was established for Northern cod in 2010 (DFO 2010) and is defined as the average spawning stock biomass (SSB) during the 1980s. This reference point defines the boundary between the critical and cautious zones within the Precautionary Approach (PA) framework (DFO 2009) and defines the stock level below which serious harm is occurring. The most recent full assessment (March, 2013) concluded that the spawning stock biomass (SSB) in 2012 was 15% of the LRP. A subsequent stock update (March 2014) with additional data from 2013 indicated the three-year average (2011-13) SSB at that time was 18% of the LRP; at these levels the stock is considered to have suffered serious harm and the ability to produce good recruitment is seriously impaired. The scientific advice from the most recent full assessment (DFO 2013) and subsequent stock update (DFO 2014) stated that removals should be kept low to promote stock growth.
Download or read book Northern NAFO Divs 2J3KL Cod Stock Update written by Canadian Science Advisory Secretariat and published by . This book was released on with total page 12 pages. Available in PDF, EPUB and Kindle. Book excerpt: A conservation limit reference point (LRP) was established for Northern cod in 2010 (DFO 2010) and is defined as the average spawning stock biomass (SSB) during the 1980s. This reference point defines the boundary between the critical and cautious zones within the Precautionary Approach (PA) framework (DFO 2009) and defines the stock level below which serious harm is occurring. The most recent full assessment (March, 2013) concluded that the spawning stock biomass (SSB) in 2012 was 15% of the LRP. A subsequent stock update (March 2014) with additional data from 2013 indicated the three-year average (2011-13) SSB at that time was 18% of the LRP; at these levels the stock is considered to have suffered serious harm and the ability to produce good recruitment is seriously impaired. The scientific advice from the most recent full assessment (DFO 2013) and subsequent stock update (DFO 2014) stated that removals should be kept low to promote stock growth.
Download or read book Stock Assessment of Northern Cod NAFO Divisions 2J3KL in 2019 written by Canadian Science Advisory Secretariat and published by . This book was released on 2019 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Atlantic Cod written by George A. Rose and published by John Wiley & Sons. This book was released on 2019-02-26 with total page 412 pages. Available in PDF, EPUB and Kindle. Book excerpt: A comprehensive handbook, covering all aspects of the Atlantic cod including the biology, ecology, life histories, behaviour, commercial exploitation and conservation Not only is Atlantic cod one of the most valuable food fish in the world’s oceans, it is an important component of North Atlantic ecosystems and has been subject to much research into its biology, ecology and exploitation. After hundreds of years of exploitation, overfishing in the last half of the 20th Century caused many stocks to collapse, most famously the Northern cod stock off Newfoundland and Labrador, Canada. Since then, most cod stocks have been better researched and managed, but remain in a variety of states, from fully recovered to continued decline. This book, written by world experts, describes that research and management, and the importance of cod and its fisheries on North Atlantic cultures and economies, with impacts well beyond the range of the species. Atlantic Cod: Bio-Ecology of the Fish offers insightful chapter coverage of cod nomenclature, taxonomy, phylogeny and morphology; physiology and ecophysiology; reproduction and spawning behavior; early life history and pre-recruitment processes; migrations, movements and stock identity; feeding, growth and energetics; the place of cod in the ecosystem; the exploitation of cod through history and present day commercial fisheries and precautionary management for sustainable fisheries; impacts of climate change on cod biology and ecology; and the future of the species and its fisheries. Discusses the major commercial importance of Atlantic cod through history Provides a comprehensive treatment of the bio-ecology of the most researched and highly exploited fully marine species Examines how the decline (and recovery) of cod stocks is of great political and scientific interest An essential purchase for marine fisheries scientists Atlantic Cod: Bio-Ecology of the Fish is a vital book for all fisheries scientists, managers and fish biologists.
Download or read book Stock Assessment of Northern Cod NAFO Divisions 2J3KL in 2021 written by and published by . This book was released on 2022 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Stock Assessment of Northern Cod NAFO Divisions 2J3KL in 2018 written by Canadian Science Advisory Secretariat and published by . This book was released on 2018 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Assessment of the Northern Cod Gadus Morhua Stock in NAFO Divisions 2J3KL in 2016 written by John Brattey and published by . This book was released on 2018 with total page 107 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Fishery Ecosystem Dynamics written by Michael J. Fogarty and published by Oxford University Press. This book was released on 2020-07-24 with total page 336 pages. Available in PDF, EPUB and Kindle. Book excerpt: Fisheries supply a critically important ecosystem service by providing over three billion people with nearly 20% of their daily animal protein intake. Yet one third of the world's fish stocks are currently harvested at unsustainable levels. Calls for the adoption of more holistic approaches to management that incorporate broader ecosystem principles are now being translated into action worldwide to meet this challenge. The transition from concept to implementation is accompanied by the need to further establish and evaluate the analytical framework for Ecosystem-Based Fishery Management (EBFM). The objectives of this novel textbook are to provide an introduction to this topic for the next generation of scientists who will carry on this work, to illuminate the deep and often underappreciated connections between basic ecology and fishery science, and to explore the implications of these linkages in formulating management strategies for the 21st century. Fishery Ecosystem Dynamics will be of great use to graduate level students as well as academic researchers and professionals (both governmental and NGO) in the fields of fisheries ecology and management.
Download or read book Stock Assessment of Northern Cod NAFO Divisions 2J3KL in 2018 written by and published by . This book was released on 2018 with total page 19 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Stock Assessment of Northern Cod NAFO Divisions 2J3KL in 2019 written by and published by . This book was released on 2019 with total page 20 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book A Narrative of NAFO Divs 2J3KL Cod Assessments from Extension of Jurisdiction to Moratorium written by Bishop, Claude A and published by St. John's, Nfld. : Fisheries and Oceans Canada. This book was released on 1997 with total page 66 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Proceedings of the Newfoundland Regional Advisory Process for Div 2J3KL Cod written by and published by . This book was released on 2001 with total page 55 pages. Available in PDF, EPUB and Kindle. Book excerpt: This report summarizes a meeting held to conduct an annual regional assessment of northern cod stocks on the coast of southern Labrador & eastern Newfoundland. The first session presented background information on which the assessment would be based, including physical oceanographic conditions on the Labrador & Newfoundland shelves, results of sentinel surveys & fisheries, age determinations, stock structure & movements of cod based on tagging experiments, and results of trawl surveys. The second session focussed on discussion of different models of stock structure & their implications for rebuilding of the cod stock. The final session presented & discussed results of analyses agreed upon earlier in the meeting, including those related to whole stock analyses, catch rate & by-catches, cod consumption by seals, mortality, and migration. The appendix contains an external reviewer's report on the meeting.
Download or read book A Narrative of NAFO Divs 2J3KL Cod Assessments from Extension of Jurisdiction to Moratorium written by and published by . This book was released on 1997 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book An Assessment of the Cod Stock in NAFO Divisions 2J3KL written by and published by . This book was released on 1992 with total page 76 pages. Available in PDF, EPUB and Kindle. Book excerpt: This assessment of the cod stock in area 2J3KL (southern Labrador to northern Grand Banks) begins with a description of the cod fishery, including historical data & its status in 1992, and of environmental conditions relevant to the fishery in 1991. It then provides information on catch & weight at age derived from the commercial catch; summarizes research vessel survey data from trawl surveys & hydroacoustic surveys; analyzes catch rates for potential use as abundance indicators; estimates stock parameters using various indices; and presents stock assessment results with regard to fishing mortality, stock abundance, and recruitment. The final section provides a prognosis for the cod stock.
Download or read book Proceedings of the Stock Assessment of Northern Cod divisions 2J3KL March 21 24 and March 30 31 2016 St John s NL written by and published by . This book was released on 2018 with total page 31 pages. Available in PDF, EPUB and Kindle. Book excerpt:
