Download or read book Revised Population Model for Atlantic Cod Gadus Morhua in the Southern Gulf of St Lawrence written by D. P. Swain and published by . This book was released on 2012 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Assessment of the Southern Gulf of St Lawrence Atlantic Cod Gadus Morhua Stock of NAFO Div 4T and 4Vn November to April March 2015 written by D. P Swain and published by . This book was released on 2015 with total page 137 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Growth and Maturity of Atlantic Cod Gadus Morhua in the Southern Gulf of St Lawrence written by Terry D. Beacham and published by . This book was released on 1983 with total page 31 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Growth and Maturity of Atlantic Cod Gadus Morhua in the Southern Gulf of St Lawrence written by Terry D. Beacham and published by . This book was released on 1983 with total page 31 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Study of the Southern Gulf of St Lawrence Cod Population written by J. E. Paloheimo and published by . This book was released on 1967 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book A Review of Information Relevant to the Issue of Consumption of Atlantic Cod Gadus Morhua by Seal Species in the Southern Gulf of St Lawrence written by M. O. Hammill and published by . This book was released on 1999 with total page 26 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book A Preliminary Discussion of the Relationship Between Population Energetics and the Management of Southern Gulf of St Lawrence Cod written by Patrick F. Lett and published by . This book was released on 1977 with total page 46 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 Assessment of the Southern Gulf of St Lawrence Atlantic Cod gadus Morhua Stock of NAFO Div 4T and 4Vn November to April March 2019 written by Douglas P. Swain and published by . This book was released on 2019 with total page 105 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Preliminary Estimates of Biomass of Commercially Important Species Eaten by Altantic i e Atlantic Cod Gadus Morhua in the Southern Gulf of St Lawrence 1992 and 1993 written by Canada. Department of Fisheries and Oceans and published by Moncton, N.B. : Department of Fisheries and Oceans. This book was released on 1994 with total page 16 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Assessment of the Southern Gulf of St Lawrence Atlantic Cod Gadus Morhua Stock of NAFO Div 4T and 4Vn November to April March 2019 written by and published by . This book was released on 2019 with total page 105 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Assessment of Atlantic Cod Gadus Morhua in the Southern Gulf of St Lawrence NAFO Div 4T 4VN Nov April to 2018 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 Preliminary Estimates of Biomass of Commercially Important Species Eaten by Atlantic Cod Gadus Morhua in the Southern Gulf of St Lawrence 1992 and 1993 written by and published by . This book was released on 1994 with total page 16 pages. Available in PDF, EPUB and Kindle. Book excerpt: This report presents a study to estimate annual consumption of commercially exploited organisms by cod in the southern Gulf of St. Lawrence. To avoid problems experienced by other researchers in making such estimates, the author uses a computationally simpler approach that has fewer assumptions. Stomach content data collected from the commercial fishery & research surveys were analyzed & summed for different cod size classes; population biomass was calculated for the same size classes, rather than age classes; and a range of daily ration levels (obtained from the literature) was used to calculate annual consumption of selected prey items by cod. Estimates are provided for such prey species as mackerel, American plaice, capelin, rainbow smelt, and Pandalus shrimp.
Download or read book Assessment of Atlantic Cod Gadus Morhua in the Southern Gulf of St Lawrence NAFO Div 4t 4vn Nov April to 2014 written by 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 Assessment of Atlantic Cod Gadus Morhua in the Southern Gulf of St Lawrence NAFO Div 4T 4VN Nov April to 2018 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 Selected Water Resources Abstracts written by and published by . This book was released on 1977 with total page 802 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Mechanisms and Consequences of Variation in the Migratory Behaviour of Atlantic Cod Gadus Morhua L in the Northern Gulf of St Lawrence written by Arnault Le Bris and published by . This book was released on 2014 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: This thesis aimed to characterize individual variation in the migratory behaviour of Atlantic cod (Gadus morhua) in the northern Gulf of St. Lawrence, and to assess the consequences of this variation on the structure and management of the population. First, I reviewed interplays between genetic, environmental, and social factors in the evolution and maintenance of individual variation in the migratory behaviour of marine fishes, with an emphasis on Atlantic cod. Evidence of fine-grained responses to environmental changes suggested that phenotypic plasticity is a substantial source of variation in migratory behaviours. However, because the genetic basis of migratory traits has been overlooked, the relative contributions of genetic, environment, and genetic by environment interactions have not been quantified for any marine fishes. Within the cod population from northern the Gulf of St. Lawrence, reconstruction of migration routes of cod equipped with data-storage tags revealed undocumented concurrent presence of resident and migratory individuals. Depth time-series analyses revealed high individual variability in vertical patterns of migration. Consequences of the observed individual variation in migration propensity on the structure of the population were then evaluated. Focusing on the fjord of Bonne Bay where I previously identified resident and homing cod, I assessed the degree of demographic dependency of Bonne Bay cod with Gulf cod. Although local recruitment occurs, Bonne Bay does not harbour an abundance of adult cod and external sources of recruitment are substantial. The bay however provides a nursery and a spawning area for Atlantic cod. Finally, I quantified effects of variation in adult migratory behaviour and population density distribution on the performance of a fishery closed area designed to protect a spawning aggregation. Closed area usage by free-ranging individuals revealed disproportional levels of protection between migratory groups. Estimated population density distributions during two periods of contrasted abundance level suggested that, when a closed area is located on the core of a population distribution, density-dependent contraction of population range increases closed area performance. Both individual closed area usage and population density distribution indicated that a displacement south and a reduction of the enforcement period would improve the performance of the study closed area.
