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 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 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Four species of seals: grey seals (Halichoerus grypus), harbour seals (phoca vitulina), harp seals (Phoca groenlandica) and hooded seals (Cystophora cristata) occur in the southern Gulf of St. Lawrence. Harp seals and grey seals are the most important seal predators owing to their abundance (harp seals), or time of residency in this area and possibly high incidence of cod in the diet (grey seals). Harbour seals and hooded seals are less important predators in this region owing to their small numbers. Pinniped consumption of cod in 4T may be in the order of 5,000-13,000 t, but these estimates should only be considered as very tentative. The absence of comprehensive diet information of pinnipeds in the southern Gulf, is one of the major factors limiting attempts to quantify groundfish consumption in this area. Further more, the impact of predation on 4T cod stocks cannot be evaluated until predation is considered within the context of total natural mortality.
Download or read book Canadian Journal of Fisheries and Aquatic Sciences written by and published by . This book was released on 2005 with total page 512 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Science Review written by Bedford Institute of Oceanography and published by . This book was released on 1994 with total page 160 pages. Available in PDF, EPUB and Kindle. Book excerpt: Describes the federal marine science and fisheries research programs that are carried out at the Bedford Institute of Oceanography, the Halifax Fisheries Research Laboratory, and the St. Andrews Biological Station.
Download or read book Canadian Bulletin of Fisheries and Aquatic Sciences written by and published by . This book was released on 1990 with total page 332 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Population Biology of Sealworm Pseudoterranova Decipiens in Relation to Its Intermediate and Seal Hosts written by Canada. Department of Fisheries and Oceans and published by . This book was released on 1990 with total page 500 pages. Available in PDF, EPUB and Kindle. Book excerpt: The sealworm parasite is found in the flesh of many fish species in the North Atlantic. Reduction in product value and the removal of this parasite costs the Canadian fishing industry alone millions of dollars annually. This report summarizes current information on the population biology of the sealworm and its intermediate and definite seal hosts to better understand the complex interactions which determine its abundance in the marine environment.
Download or read book Canadian Journal of Zoology written by and published by . This book was released on 1995 with total page 1276 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Gillnets and Cetaceans written by William F. Perrin and published by . This book was released on 1994 with total page 648 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Oceanic Abstracts written by and published by . This book was released on 1997-04 with total page 900 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Quantifying Uncertainity in Estimates of Atlantic Cod Gadus Morhua Consumption by Harp Seals Phoca Groenlandica written by G. B. Stenson and published by . This book was released on 2004 with total page 28 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Handbook of Fish Biology and Fisheries written by Paul J. B. Hart and published by John Wiley & Sons. This book was released on 2008-04-15 with total page 432 pages. Available in PDF, EPUB and Kindle. Book excerpt: Recent decades have witnessed strong declines in fish stocks aroundthe globe, amid growing concerns about the impact of fisheries onmarine and freshwater biodiversity. Fisheries biologists andmanagers are therefore increasingly asking about aspects ofecology, behaviour, evolution and biodiversity that weretraditionally studied by people working in very separate fields.This has highlighted the need to work more closely together, inorder to help ensure future success both in management andconservation. The Handbook of Fish Biology and Fisheries has beenwritten by an international team of scientists and practitioners,to provide an overview of the biology of freshwater and marine fishspecies together with the science that supports fisheriesmanagement and conservation. This volume, subtitled Fish Biology, reviews a broadvariety of topics from evolutionary relationships and globalbiogeography to physiology, recruitment, life histories, genetics,foraging behaviour, reproductive behaviour and community ecology.The second volume, subtitled Fisheries, uses much of thisinformation in a wide-ranging review of fisheries biology,including methods of capture, marketing, economics, stockassessment, forecasting, ecosystem impacts and conservation. Together, these books present the state of the art in ourunderstanding of fish biology and fisheries and will serve asvaluable references for undergraduates and graduates looking for acomprehensive source on a wide variety of topics in fisheriesscience. They will also be useful to researchers who needup-to-date reviews of topics that impinge on their fields, anddecision makers who need to appreciate the scientific backgroundfor management and conservation of aquatic ecosystems. To order volume I, go to the box in the top right hand corner.Alternatively to order volume II, go to:http://www.blackwellpublishing.com/book.asp?ref=063206482X or toorder the 2 volume set, go to:http://www.blackwellpublishing.com/book.asp?ref=0632064838. Provides a unique overview of the study of fish biology andecology, and the assessment and management of fish populations andecosystems. The first volume concentrates on aspects of fish biology andecology, both at the individual and population levels, whilst thesecond volume addresses the assessment and management of fishpopulations and ecosystems. Written by an international team of expert scientists andpractitioners. An invaluable reference tool for both students, researchers andpractitioners working in the fields of fish biology andfisheries.
Download or read book Interactions in the Marine Benthos written by Stephen J. Hawkins and published by Cambridge University Press. This book was released on 2019-08-29 with total page 535 pages. Available in PDF, EPUB and Kindle. Book excerpt: A comprehensive account of how abiotic and biotic interactions shape patterns of coastal marine biodiversity and ecosystem processes globally.
Download or read book Actes Du Symposium written by and published by . This book was released on 1991 with total page 712 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Cod and Climate Change written by Jakob Jakobsson and published by . This book was released on 1994 with total page 714 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Ecosystem Approach to Fisheries written by Gabriella Bianchi and published by CABI. This book was released on 2008 with total page 377 pages. Available in PDF, EPUB and Kindle. Book excerpt: "Sustainable use of aquatic ecosystems is high on regional, national and international agendas and central to the implementation of international agreements on biological diversity, responsible fisheries and fish stock management. Since 2001, when political commitments were made to implement the ecosystem approach, countries have begun to incorporate ecosystem considerations into their fisheries management and have met with varied success." "The Ecosystem Approach to Fisheries covers both theoretical andapplied aspects of sustainable management, with a particular emphasis on reviewing concepts and addressing implementation issues in the form of case studies from around the world. Personal experiences are considered from diverse backgrounds and discuss the constraints encountered, strategies identified and best practices to facilitate further implementation."--BOOK JACKET.
Download or read book Canadian Government Publications written by and published by . This book was released on 1976 with total page 518 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Canadian Government Publications written by Canada. Department of Supply and Services and published by . This book was released on 1976 with total page 518 pages. Available in PDF, EPUB and Kindle. Book excerpt:
