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By Catch Of Harbour Porpoise Phocoena Phocoena In The Lower Bay Of Fundy Gillnet Fishery 1998 2001
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Book Synopsis By-catch of Harbour Porpoise (Phocoena Phocoena) in the Lower Bay of Fundy Gillnet Fishery, 1998-2001 by : Edward A. Trippel
Download or read book By-catch of Harbour Porpoise (Phocoena Phocoena) in the Lower Bay of Fundy Gillnet Fishery, 1998-2001 written by Edward A. Trippel and published by St. Andrews, N.B. : Fisheries and Oceans Canada. This book was released on 2004 with total page 42 pages. Available in PDF, EPUB and Kindle. Book excerpt: The most serious threat to the status of harbour porpoise (Phocoena phocoena) is incidental mortalities caused by entanglement in fishing gear. As part of an ongoing study to evaluate the utility of mitigation techniques to reduce such harbour porpoise mortalities, observers were placed on-board vessels participating in the lower Bay of Fundy demersal gillnet fishery from 1998-2001. The number of vessels participating in the fishery declined from 22 in 1998 to 13 in 2001. Despite this decline, total annual effort remained relatively stable. Over the 4-yr period, a total of 52 porpoise mortalities were observed. all but four of which were in the Swallowtail region off Grand Manan, New Brunswick. For the Bay of Fundy, total estimated by-catch was 38, 32, 28, and 73 porpoises from 1998-2001, respectively. A lack of spatial and temporal observer coverage did not allow us to generate estimates of variance in by-catch estimates. In all years, the majority of the estimated porpoise by-catch occurred in the Swallowtail region. In general, by-catch was highest in July except in 1999 when it was highest in August. The increase in by-catch seen in 2001 was due to increased catch rates rather than increased effort. While the Canadian by-catch in 2001 appears low (73 porpoises), it was nearly as high as the U.S. by-catch (80 porpoises) which has a much larger fishery. Given that the Canadian by-catch appears to represent a significant source of mortality, observer coverage should be better allocated both spatially and temporally in the future so that more reliable by-catch estimates and their associated variance can be estimated
Book Synopsis Canadian Technical Report of Fisheries and Aquatic Sciences by :
Download or read book Canadian Technical Report of Fisheries and Aquatic Sciences written by and published by . This book was released on 2004 with total page 42 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis The Journal of Cetacean Research and Management by :
Download or read book The Journal of Cetacean Research and Management written by and published by . This book was released on 2008 with total page 306 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis U.S. Atlantic and Gulf of Mexico Marine Mammal Stock Assessments--2002 by :
Download or read book U.S. Atlantic and Gulf of Mexico Marine Mammal Stock Assessments--2002 written by and published by . This book was released on 2002 with total page 340 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Harbour Porpoises in the North Atlantic by :
Download or read book Harbour Porpoises in the North Atlantic written by and published by . This book was released on 2003 with total page 324 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Introduction to the Biology of Marine Life by : James L. Sumich
Download or read book Introduction to the Biology of Marine Life written by James L. Sumich and published by Jones & Bartlett Learning. This book was released on 2004 with total page 468 pages. Available in PDF, EPUB and Kindle. Book excerpt: This textbook examines selected groups of marine organisms within a framework of basic biological principles and processes. With attention to taxonomic, evolutionary, ecological, behavioral, and physiological aspects of biological study, the book contains chapters on habitat, patterns of association, phytoplankton, marine plants, protozoans and inv
Download or read book Dugong written by and published by UNEP/Earthprint. This book was released on 2002 with total page 173 pages. Available in PDF, EPUB and Kindle. Book excerpt: The dugong (Dugong dugon) is the only herbivorous mammal that is strictly marine. It has a range spanning some 37 countries, including tropical and subtropical coastal and island waters. This plan presents a global overview of the status of the dugong and its management throughout its range. It contains information on dugong distribution and abundance, threatening processes, legislation, and existing and suggested research and management initiatives for the countries and territories in the dugong’s known range. It is hoped that the comparative information provided will enable individual countries to develop their own, more detailed, conservation plans.
Book Synopsis Marine Mammals: Fisheries, Tourism and Management Issues by : Nicholas Gales
Download or read book Marine Mammals: Fisheries, Tourism and Management Issues written by Nicholas Gales and published by CSIRO PUBLISHING. This book was released on 2003-10-22 with total page 468 pages. Available in PDF, EPUB and Kindle. Book excerpt: Marine Mammals: Fisheries, Tourism and Management Issues brings together contributions from 68 leading scientists from 12 countries to provide a comprehensive, up-to-date review on the way we manage our interactions with whales, dolphins, seals and dugongs. The book examines how we have fared conserving the world’s marine mammal populations, with a focus on the key issues of fisheries and tourism. From a unique southern hemisphere perspective, the authors consider how science informs the culling debate, how wild fisheries and aquaculture interact with marine mammal populations and how we might manage the effects of whale, dolphin and seal watching industries. The authors also address other issues such as the way in which ethics, genetics, acoustics, ecosystem models and pollution influence the management and conservation of marine mammals. Marine Mammals is an invaluable and accessible resource for all those involved with marine mammals, including scientists, managers, policy makers, industry representatives and students. Winner of a 2004 Whitley Award.
Book Synopsis The Natural History of Canadian Mammals by : Donna Naughton
Download or read book The Natural History of Canadian Mammals written by Donna Naughton and published by University of Toronto Press. This book was released on 2012-01-01 with total page 985 pages. Available in PDF, EPUB and Kindle. Book excerpt: "The selection of species to include in this book was based on two principles: 1. Those that in recent times had a viable, naturally occurring wild population in Canada, its continental islands, or in the marine waters of its continental shelf ... [and] 2. Species introduced into Canada by humans"--P. xiv.
Book Synopsis Global Environmental Law Annual by :
Download or read book Global Environmental Law Annual written by and published by . This book was released on 2004 with total page 516 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Federal Register written by and published by . This book was released on 2001-08 with total page 484 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Annual Report of the Marine Mammal Commission by : United States. Marine Mammal Commission
Download or read book Annual Report of the Marine Mammal Commission written by United States. Marine Mammal Commission and published by . This book was released on 2001 with total page 554 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Whales, Seals, Fish and Man by : A. Schytte Blix
Download or read book Whales, Seals, Fish and Man written by A. Schytte Blix and published by Elsevier. This book was released on 1995-10-06 with total page 735 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume outlines the major findings from the Norwegian research programme on whales and seals in Norwegian waters. A wide range of topics are covered, including physiological aspects, social organization, population dynamics, stock assessment and management. The book will be of great value to scientists and managers, as well as to members of the general public interested in environmental issues.
Book Synopsis Dolphins, Whales, and Porpoises by : Randall R. Reeves
Download or read book Dolphins, Whales, and Porpoises written by Randall R. Reeves and published by IUCN. This book was released on 2003 with total page 238 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Atlas of Cetacean Distribution in North-west European Waters by : James B. Reid
Download or read book Atlas of Cetacean Distribution in North-west European Waters written by James B. Reid and published by . This book was released on 2003 with total page 84 pages. Available in PDF, EPUB and Kindle. Book excerpt: An account of the distribution of 28 cetacean species that are known to have occurred in the waters off north-west Europe. Individual chapters cover particular species in detail, spanning identification, behaviour and social organisation, diet and habitat preferences, worldwide distribution and population status.
Book Synopsis Overview of mitigation measures to reduce the incidental catch of vulnerable species in fisheries by : Sacchi, J.
Download or read book Overview of mitigation measures to reduce the incidental catch of vulnerable species in fisheries written by Sacchi, J. and published by Food & Agriculture Org.. This book was released on 2021-06-23 with total page 136 pages. Available in PDF, EPUB and Kindle. Book excerpt: Potentially harmful contact between fisheries and marine vulnerable species represents a global conservation issue and efforts to mitigate the negative repercussions of these interactions belong in strategies for ensuring the sustainability of fisheries. This literature review offers a survey of mitigation measures and techniques that have been developed and tested around the world, aiming to address both the incidental catch of highly mobile species – specifically, cetaceans, seabirds, sharks and rays, and sea turtles – and depredation caused by dolphins. Based on research detailed in over 300 documents, including peer-reviewed publications, reports from international organizations and papers available on the internet, most of the mitigation techniques illustrated are still under development, with only a few already adopted through legislation. The selected mitigation measures are grouped by main types of fishing gear – gillnets and trammel nets, longlines and lines, trawls, purse seines, traps and pots – and further subdivided according to which of the four main groups of vulnerable species – cetaceans, seabirds, sharks and rays, or sea turtles – they are designed to protect. Preventive and curative approaches covering both technical measures (gear modifications, strategies, as well as acoustic, visual, magnetic and chemosensory deterrents) and management measures are described.
Book Synopsis Gillnets and Cetaceans by : William F. Perrin
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:
