Download or read book Assessment of the 4TVn Jan Apr Cod Stock for 1985 written by Ghislain A. Chouinard and published by . This book was released on 1985 with total page 35 pages. Available in PDF, EPUB and Kindle. Book excerpt: This report assesses the status of the cod stock in the southern Gulf of St. Lawrence and Sydney Bight areas. It includes information on nominal & historical catches, catch & weights at age as derived from sampling of cod landings, catch per unit effort, population estimated from a fall groundfish survey, fishing mortality as determined from a survivor analysis, and biomass, population numbers, & fishing mortality derived from a sequential population analysis. Projections of catch are made to 1986.

Download or read book Assessment of the 4TVn Jan Apr Cod Stock for 1985 written by and published by . This book was released on 1985 with total page 35 pages. Available in PDF, EPUB and Kindle. Book excerpt: This report assesses the status of the cod stock in the southern Gulf of St. Lawrence and Sydney Bight areas. It includes information on nominal & historical catches, catch & weights at age as derived from sampling of cod landings, catch per unit effort, population estimated from a fall groundfish survey, fishing mortality as determined from a survivor analysis, and biomass, population numbers, & fishing mortality derived from a sequential population analysis. Projections of catch are made to 1986.

Download or read book Assessment of the 4TVn Jan Apr Cod Stock for 1986 written by Ghislain André Chouinard and published by . This book was released on 1986 with total page 55 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Assessment of the 4TVn Jan Apr Cod Stock for 1986 written by Chouinard, G. A. (Ghislain André) and published by [Dartmouth, N.S.] : Canadian Atlantic Fisheries Scientific Advisory Committee. This book was released on 1986* with total page 55 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Assessment of the 4TVn Jan Apr Cod Stock for 1987 written by G. A. Chouinard and published by . This book was released on 1987 with total page 48 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Assessment of the 4T and 4Vn Jan Apr Cod Stock for 1988 written by G. Chouinard and published by . This book was released on 1988 with total page 47 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Assessment of the 4T and 4Vn Jan Apr Cod Stock for 1989 written by G. Chouinard and published by . This book was released on 1989 with total page 50 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book 4TVn Jan Apr Cod Assessment written by Michael M. Sinclair and published by . This book was released on 1981 with total page 37 pages. Available in PDF, EPUB and Kindle. Book excerpt: "The seasonal distribution of the catch by gear type for this management unit was described. The catch was taken relatively evenly throughout the year. The total 4Vn catch between January and April was 18,231 t, 47% of which was taken by French vessels. The total catch in 4T between March and December was 39,039 t. The overall 1980 reported landings for this management unit (57,270 t) continued to increase after the historical low of 22,000 t recorded during 1977"--Abstract.

Download or read book Journal of Northwest Atlantic Fishery Science written by and published by . This book was released on 1999 with total page 744 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Risk Evaluation and Biological Reference Points for Fisheries Management written by National Research Council Canada and published by NRC Research Press. This book was released on 1993 with total page 456 pages. Available in PDF, EPUB and Kindle. Book excerpt: Papers presented: 1) Reference points for fisheries management: the western Canadian experience; 2) Reference points for fisheries management: the eastern Canadian experience; 3) Reference points for fisheries management: the ICES experience; 4) Spawning stock biomass per recruit in fisheries management: foundation and current use; 5) The development of a management procedure for the South African anchovy resource; 6) How much spawning per recruit is enough?; 7) The behaviour of Flow, Fmed and Fhigh in response to variation in parameters used for their estimation; 8) The Barents Sea capelin stock collapse: a lesson to learn; 9) Variance estimates for fisheries assessment: their importance and how best to evaluate them; 10) Evaluating the accuracy of projected catch estimates from sequential population analysis and trawl survey abundance estimates; 11) Bootstrap estimates of ADAPT parameters, their projection in risk analysis and their retrospective patterns; 12) Analytical estimates of reliability for the projected yield from commercial fisheries; 13) Risk evaluation of the 10% harvest rate procedure for capelin in NAFO Division 3L; 14) Using jackknife and Monte Carlo simulation techniques to evaluate forecast models for Atlantic salmon; 15) Monte Carlo evaluation of risks for biological reference points used in New Zealand fishery assessments; 16) A comparison of event free risk analysis to Ricker spawner-recruit simulation: an example with Atlantic menhaden; 17) Choosing a management strategy for stock rebuilding when control is uncertain; 18) Risks and uncertainties in the management of a single-cohort squid fishery: the Falkland Islands Illex fishery as an example; 19) Risks of over- and under-fishing new resources; 20) Estimation of density-dependent natural mortality in British Columbia herring stocks through SSPA and its impact on sustainable harvesting strategies; 21) The comparative performance of production-model and ad hoc tuned VPA based feedback-control management procedures for the stock of Cape hake off the west coast of Africa; 22) A proposal for a threshold stock size and maximum fishing mortality rate; 23) Biological reference points for Canadian Atlantic gadoid stocks; 24) Stochastic locally-optimal harvesting; 25) ITQ based fisheries management; 26) Bioeconomic methods for determining TACs; 27) Management strategies: fixed or variable catch quotas; 28) Bioeconomic impacts of TAC adjustment strategies: a model applied to northern cod; 29) Experimental management programs for two rockfish stocks off British Columbia; 30)A brief overview of the experimental approach to reducing uncertainty in fisheries management; 31) Fisheries management organizations: a study of uncertainty.

Download or read book Cambios de Largo Termino en Poblaciones de Peces Marinos written by T. Wyatt and published by . This book was released on 1988 with total page 578 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book 1980 Assessment of Cod in Divisions 4T and 4Vn Jan Apr written by Terry Dale Beacham and published by . This book was released on 1980 with total page 61 pages. Available in PDF, EPUB and Kindle. Book excerpt: "A review of the Canadian fishery on the Div. 4T-4Vn (Jan.-Apr.) cod stock in the 1970s was conducted as well as an analytical assessment for this stock. The Div. 4T cod fishery has been 100% Canadian since 1977, but French catches still occur in the 4Vn (Jan.-Apr.) fishery. Otter trawls and gillnets were the main gears used in the Div. 4T fishery, and otter trawls were virtually the only gear used in 4Vn (Jan.-Apr.) fishery. Virtually all of the catch of gillnets and long- and hand-lines was made by vessels under 50 gross registered tons."--Abstract.

Download or read book 1979 Assessment of Cod in Divisions 4T and 4Vn Jan Apr written by David F. Gray and published by . This book was released on 1979 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: "Catches from this stock reached an all time recorded high of 110 thousand t in 1956 apparently as a result of the reaction of the cod biomass to the destruction of pelagic stock biomass by epizootic disease. From that point catches declined to 41 thousand t in 1967. However reported catches then climbed to about 60 thousand t per year in the early 1970's primarily due to an increase in interest in the 4Vn winter fishery by foreign countries and large Canadian otter trawlers. With dropping catch rates and decline in numbers estimated from research tows, there was an indication that the population was being exploited at fishing mortalities above sustainable levels"--Introduction.

Download or read book Gulf of St Lawrence Cod written by M. J. Tremblay and published by Halifax, N.S. : Government of Canada, Fisheries and Oceans. This book was released on 1985 with total page 52 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Assessment of the 4X Cod Fishery in 1985 written by Steven E. Campana and published by . This book was released on 1986 with total page 55 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Assessment of the 4X Cod Fishery in 1985 written by Steven E. Campana and published by [Dartmouth, N.S.] : Canadian Atlantic Fisheries Scientific Advisory Committee. This book was released on 1986* with total page 55 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Management of Marine Fisheries in Canada written by L. S. Parsons and published by NRC Research Press. This book was released on 1993 with total page 796 pages. Available in PDF, EPUB and Kindle. Book excerpt: This report describes and evaluates the impact of the major changes in the management of Canada's marine fisheries in recent decades. The report covers the historical and jurisdictional context; biological and economic aspects; objectives of fisheries management; techniques of resources management in general and those used for specific species; managing the common property through allocation of access, limited entry licensing, and individual quotas; the international dimension; the social dimension; habitat management; fisheries enforcement; and fisheries management in the United States, Australia, New Zealand, Norway, Iceland, and the European Community.