Population Modelling Results for the Assessment of Atlantic Herring (Clupea Harengus) Stocks in the Southern Gulf of St. Lawrence (NAFO Division 4T) to 2015 PDF Download
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Author: D. P. Swain
Publisher:
ISBN:
Category :
Languages : en
Pages :
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Book Description
Author: D. P. Swain
Publisher:
ISBN:
Category :
Languages : en
Pages :
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Book Description
Author: National Research Council Canada
Publisher: NRC Research Press
ISBN: 9780660149561
Category : Nature
Languages : en
Pages : 456
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Book Description
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.
Author: Canada. Department of Fisheries and Oceans
Publisher: Peches Et Oceans Direction Generale Des Communications = Fisheries and Oceans Communications Dir
ISBN:
Category : Science
Languages : fr
Pages : 376
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Book Description
Proceedings of a workshop, the scientific reviews and the contributed papers presented at the symposium. The document presents a brief historical summary of marine research in the Gulf; reports the discussions, conclusions and recommendations of the different working groups on oceanography (physics, biology, chemistry and sedimentology) and on the fishery (fish and invertebrates); then presents the discussions of each multidisciplinary working group, centered around how the St. Lawrence system may be used as a natural laboratory which will contribute to the solution of major long-term problems of conservation of natural resources and of the quality of the environment.
Author: Franck Courchamp
Publisher: Oxford University Press
ISBN: 0198570309
Category : Nature
Languages : en
Pages : 267
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Book Description
Allee effects are relevant to biologists who study rarity, and to conservationists and managers who try and protect endangered populations. This book provides an overview of the Allee effect, the mechanisms which drive it and its consequences for population dynamics, evolution and conservation.
Author: Lindsay Young
Publisher: Academic Press
ISBN: 0323885403
Category : Science
Languages : en
Pages : 626
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Book Description
Conservation of Marine Birds is the first book to outline and synthesize the myriad of threats faced by one of the most imperiled groups of birds on earth. With more than half of all 346 seabird species worldwide experiencing population declines and 29% of species recognized as globally threatened by the International Union for Conservation of Nature, the timing to determine solutions to threats could not be more urgent. Written by a diverse team of international experts on marine birds, this book explores the environmental and biogeographical factors that influence seabird conservation and provides concrete recommendations for mounting climate change issues. This book will be an important resource for researchers and conservationists, as well as ecologists and students who want to understand seabirds, the threats they are facing, and tactics to help conserve and protect them. - Outlines both threats and solutions in the marine and terrestrial realm - Synthesizes information to provide a comprehensive strategy moving forward, especially considering climate change - Created by a team of experts with the latest and most comprehensive knowledge of seabird conservation
Author: Pedro Barbosa
Publisher: Oxford University Press
ISBN: 019988367X
Category : Science
Languages : en
Pages : 709
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Book Description
This book addresses the fundamental issues of predator-prey interactions, with an emphasis on predation among arthropods, which have been better studied, and for which the database is more extensive than for the large and rare vertebrate predators. The book should appeal to ecologists interested in the broad issue of predation effects on communities.
Author: Eugene Levner
Publisher: Springer Science & Business Media
ISBN: 140203198X
Category : Science
Languages : en
Pages : 301
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Book Description
The demand for advanced management methods and tools for marine ecosystems is increasing worldwide. Today, many marine ecosystems are significantly affected by disastrous pollution from industrial, agricultural, municipal, transportational, and other anthropogenic sources. The issues of environmental integrity are especially acute in the Mediterranean and Red Sea basins, the cradle of modern civilization. The drying of the Dead Sea is one of the most vivid examples of environmental disintegration with severe negative consequences on the ecology, industry, and wildlife in the area. Strategic management and coordination of international remedial and restoration efforts is required to improve environmental conditions of marine ecosystems in the Middle East as well as in other areas. The NATO Advanced Study Institute (ASI) held in Nice in October 2003 was designed to: (1) provide a discussion forum for the latest developments in the field of environmentally-conscious strategic management of marine environments, and (2) integrate expertise of ecologists, biologists, economists, and managers from European, American, Canadian, Russian, and Israeli organizations in developing a framework for strategic management of marine ecosystems. The ASI addressed the following issues: Key environmental management problems in exploited marine ecosystems; Measuring and monitoring of municipal, industrial, and agricultural effluents; Global contamination of seawaters and required remedial efforts; Supply Chain Management approach for strategic coastal zones management and planning; Development of environmentally friendly technologies for coastal zone development; Modeling for sustainable aquaculture; and Social, political, and economic challenges in marine ecosystem management.
Author: Richard J. Beamish
Publisher: Springer Science & Business Media
ISBN: 1402092105
Category : Nature
Languages : en
Pages : 736
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Book Description
Fisheries science in North America is changing in response to a changing climate, new technologies, an ecosystem approach to management and new thinking about the processes affecting stock and recruitment. Authors of the 34 chapters review the science in their particular fields and use their experience to develop informed opinions about the future. Everyone associated with fish, fisheries and fisheries management will find material that will stimulate their thinking about the future. Readers will be impressed with the potential for new discoveries, but disturbed by how much needs to be done in fisheries science if we are to sustain North American fisheries in our changing climate. Officials that manage or fund fisheries science will appreciate the urgency for the new information needed for the stewardship of fish populations and their ecosystems. Research organizations may want to keep some extra copies for a future look back into the thoughts of a wide range of fisheries professionals. Fisheries science has been full of surprises with some of the surprises having major economic impacts. It is important to minimize these impacts as the demand for seafood increases and the complexities of fisheries management increase.
Author: L. S. Parsons
Publisher: NRC Research Press
ISBN: 9780660150024
Category : Nature
Languages : en
Pages : 796
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Book Description
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.
Author: Food and Agriculture Organization of the United Nations. Marine Resources Service
Publisher: Food & Agriculture Org.
ISBN: 9789251034712
Category : Education
Languages : en
Pages : 148
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Book Description
This document provides a review, commentary and tabulations of the main trends that have occurred in exploitation of fisheries resources since the 1970s, largely as they are reflected in the FAO database on fishery landings, supplemented with selected information from the fishery literature. Reviews were prepared separately for the 15 main areas into which FAO divides the world's oceans for statistical purposes. They are then compared from a global perspective to reveal relative trends by species and areas, which are highlighted. Several special topics are reviewed, including tuna and tuna-like species, whales and dolphins, and environmental issues in fisheries.
