Download or read book Fishing Capacity of Trawls written by Volʹmir Aleksandrovich Ionas and published by . This book was released on 1969 with total page 74 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Effects of Trawling and Dredging on Seafloor Habitat written by National Research Council and published by National Academies Press. This book was released on 2002-08-09 with total page 137 pages. Available in PDF, EPUB and Kindle. Book excerpt: Concerns over the potential ecological effects of fishing have increased with the expansion of fisheries throughout the marine waters of the United States. Effects of Trawling and Dredging on Seafloor Habitat describes how assessment of fishing impacts depends on gear type, number and location of bottom tows, and the physical and biological characteristics of seafloor habitats. Many experimental studies have documented acute, gear-specific effects of trawling and dredging on various types of habitat. These studies indicate that low mobility, long-lived species are more vulnerable to towed fishing gear than short-lived species in areas where the seabed is often disturbed by natural phenomena. Trawling and dredging may also change the composition and productivity of fish communities dependent on seafloor habitats for food and refuge. The scale of these impacts depends on the level of fishing effort. This volume presents color maps of fishing effort for all regions with significant bottom trawl or dredge fisheries-the first time that such data has been assembled and analyzed for the entire nation.
Download or read book Measuring Capacity in Fisheries written by Sean Pascoe and published by Food & Agriculture Org.. This book was released on 2003 with total page 332 pages. Available in PDF, EPUB and Kindle. Book excerpt: The methods are applied to a number of fisheries for example purpose.
Download or read book What is the Code of Conduct for Responsible Fisheries written by Food and Agriculture Organization of the United Nations and published by Food & Agriculture Org.. This book was released on 2001 with total page 20 pages. Available in PDF, EPUB and Kindle. Book excerpt: The actual Code of conduct is also available (1996) (ISBN 9251038341).
Download or read book The Ecosystem Approach to Fisheries written by S. M. Garcia and published by Fao Inter-Departmental Working Group. This book was released on 2003 with total page 84 pages. Available in PDF, EPUB and Kindle. Book excerpt: Ecosystems are complex and dynamic natural units that produce goods and services beyond those of benefit to fisheries. Because fisheries have a direct impact on the ecosystem, which is also impacted by other human activities, they need to be managed in an ecosystem context. The meaning of the terms "ecosystem management", "ecosystem-based management", "ecosystem approach to fisheries" (EAF), etc., are still not universally defined and progressively evolving. The justification of EAF is evident in the characteristics of an exploited ecosystem and the impacts resulting from fisheries and other activities. The rich set of international agreements of relevance to EAF contains a large number of principles and conceptual objectives. Both provide a fundamental guidance and a significant challenge for the implementation of EAF. The available international instruments also provide the institutional foundations for EAF. The FAO Code of Conduct for Responsible Fisheries is particularly important in this respect and contains provisions for practically all aspects of the approach. One major difficulty in defining EAF lies precisely in turning the available concepts and principles into operational objectives from which an EAF management plan would more easily be developed. The paper discusses these together with the types of action needed to achieve them. Experience in EAF implementation is still limited but some issues are already apparent,e.g. in added complexity, insufficient capacity, slow implementation, need for a pragmatic approach, etc. It is argued, in conclusion, that the future of EAF and fisheries depends on the way in which the two fundamental concepts of fisheries management and ecosystem management, and their respective stakeholders, will join efforts or collide.
Download or read book Sustaining Marine Fisheries written by National Research Council and published by National Academies Press. This book was released on 1999-03-19 with total page 189 pages. Available in PDF, EPUB and Kindle. Book excerpt: Fluctuations and declines in marine fish populations have caused growing concern among marine scientists, fisheries managers, commercial and recreational fishers, and the public. Sustaining Marine Fisheries explores the nature of marine ecosystems and the complex interacting factors that shape their productivity. The book documents the condition of marine fisheries today, highlighting species and geographic areas that are under particular stress. Challenges to achieving sustainability are discussed, and shortcomings of existing fisheries management and regulation are examined. The volume calls for fisheries management to adopt a broader ecosystem perspective that encompasses all relevant environmental and human influences. Sustaining Marine Fisheries offers new approaches to building workable fisheries management institutions, improving scientific data, and developing management tools. The book recommends ways to change current practices that encourage overexploitation of fish resources. It will be of special interest to marine policymakers and ecologists, fisheries regulators and managers, fisheries scientists and marine ecologists, fishers, and concerned individuals.
Download or read book Trawl Fishery of the Washington Oregon California Region written by and published by . This book was released on 1977 with total page 30 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book We re Still Here written by Corie D Johnson and published by . This book was released on 2019-05-25 with total page 44 pages. Available in PDF, EPUB and Kindle. Book excerpt: Alzheimer's and Dementia are diseases known for affecting seniors in the later phases of their lives. They become someone else entirely, the grandmother and grandfather you once knew becomes whose character you cannot predict. They exhibit different behaviors which are indicative with the nature of the disease. Through the virtue of my work experience, I have seen in time the ways different seniors around me manifest symptoms of the disease in their bodies and their minds. Within the past 15 years I have seen, interacted, cared and devoted time to learning and supporting the seniors and their families.It is heartbreaking to realize that the moment of their lives, their love ones find it difficult to understand them, or interact with them, hence neglecting without learning or giving the proper care that they deserve. I have written this book during the time my family and myself suffered and endured this tragedy. I know very well how this disease can take over a person's life and change the lives of the family members that they once knew. I encourage and enlighten you by providing knowledge of the disease and its extent and how to understand and care for your love ones. The Journey is a Eternal, Thank you for reading!
Download or read book Regulation of Fishing Effort written by Peter H. Pearse and published by Bernan Press(PA). This book was released on 1980 with total page 96 pages. Available in PDF, EPUB and Kindle. Book excerpt: This report deals with the general problem of regulating fishing effort and, in particular, with methods of controlling the expansion of fishing capacity in commercial fleets. In the first part, the author exposes the rationale for government intervention and the various management problems which may have to be considered by a regulatory policy; he then identifies a number of criteria that are likely to guide governments in a selection of alternative approaches to management. Part II deals more directly with policy development in Mediterranean trawl fisheries; it summarizes current arrangements in several countries and suggests management measures which might help in solving the problems of overcapacity which affects the trawl fishery, leaving to the countries the choice of appropriate measures according to their own socio-economic and political context.
Download or read book Reducing Fishing Capacity Best Practices for Decommissioning Schemes written by OECD and published by OECD Publishing. This book was released on 2009-01-22 with total page 120 pages. Available in PDF, EPUB and Kindle. Book excerpt: Too many fishing vessels chasing too few fish is a persistent problem in many countries. Governments often turn to vessel decommissioning schemes as a remedy. This report presents a set of best practice guidelines on the design and implementation of decommissioning schemes.
Download or read book A Guide to Bycatch Reduction in Tropical Shrimp trawl Fisheries written by Steve Eayrs and published by Food & Agriculture Org.. This book was released on 2007 with total page 126 pages. Available in PDF, EPUB and Kindle. Book excerpt: Bycatch is the unwanted or non-target part of the catch taken by fishermen. It is either discarded at sea or used for human or animal consumption. The capture of bycatch may pose a threat to species diversity and ecosystem health because this part of the catch is usually unregulated. In tropical shrimp-trawl fisheries, bycatch often consists of juvenile food-fish species and is therefore a threat to food security and sustainable fisheries production. Bycatch is a global problem that must be addressed. This Guide to Bycatch Reduction in Tropical Shrimp-Trawl Fisheries is designed for fishermen, net makers, fishing technologists and others interested in a practical guide to the design, use and operation of effective bycatch reduction devices. Fishery managers, policy-makers and legislators will find this guide useful to help develop specifications governing the design and application of these devices in a shrimptrawl fishery. The issue of bycatch is not going away and scrutiny of fishing activity is increasing. All fishermen are strongly urged to use appropriate bycatch reduction measures to help maintain the productivity of the fishery and the long term prosperity of the fishing industry. By responding appropriately, fishermen can help to protect the marine environment and assist global food security both now and in the future. Also published in French and Spanish.
Download or read book An Economic Analysis of the Long run Decision making Behavior of Oregon Otter Trawl Fishermen written by Samuel F. Herrick and published by . This book was released on 1979 with total page 274 pages. Available in PDF, EPUB and Kindle. Book excerpt: In the formulation of fisheries management plans required under the Fisheries Conservation and Management Act of 1976 specific attention is paid to the "capacity" of domestic fishing vessels to harvest the predetermined optimum yield on an annual basis. Capacity is interpreted in this thesis as the technical harvesting potential of the fishing fleet over a specific period of time. In this context capacity reflects the size and composition of the fishing fleet of interest. The primary emphasis of this thesis was to identify economic, factors which affect harvesting capacity in the fishery. In this regard the long-run decision-making behavior of individual fishermen was of interest since the size and composition of the fleet, and hence harvesting capacity, is affected by specific choices made at the individual level. A theoretical analysis of the long-run decision making of individual fishermen was developed and was followed by an empirical application to a sample of fishermen who were active in the Oregon trawl fisheries during one or more of the years 1970-1975. The theoretical discussion initially centers upon those aspects of the fisherman's choices which detract from the application of a contemporary flexible accelerator type model to the analysis of fisherman decision behavior. Instead the logit approach was chosen to analyze discrete choice decisions that occur at the individual level in the Oregon trawl fisheries. Logit analysis is specifically designed to handle qualitative dependent variables and theoretically allows for the differences in decision rules among members of the decision-making population. In addition, the results of the logit analysis at the individual level can be extended to the population level to examine aggregate behavior of interest to fishery policy makers. The logit approach was applied to a number of individual decisions that affect technical capacity and the distribution of technical capacity in the Oregon trawl fisheries. The first logit model analyzed the decision of whether to leave or continue trawling. The next logit specification described the fisherman's choice of trawl fishery where the set of fishery alternatives in the Oregon case is comprised of the shrimp, groundfish and combination (groundfish and shrimp) fisheries. The last decision concerned the fisherman's choice of fishing vessel where vessels were classified according to gross tonnage and age. In general the analytical results reflect the simplicity of the initial specifications. Nonetheless, the potential of the logit approach for analyzing fisherman decision-making behavior was reasonably well demonstrated. Finally, several modifications and extensions of the preliminary work were discussed which, in the light of more specific data, would lead to a more complete, predictive and policy-oriented analysis of harvesting capacity in the fishery.
Download or read book Discards in the World s Marine Fisheries written by Kieran Kelleher and published by Food & Agriculture Org.. This book was released on 2005 with total page 156 pages. Available in PDF, EPUB and Kindle. Book excerpt: This publication gives an updated review of the quantity of discards in the world's marine fisheries, using information from a broad range of fisheries in all continents. A number of policy issues are discussed including a 'no discards' approach to fisheries management, the need for balance between bycatch reduction and bycatch utilisation initiatives, and concerns arising from incidental catches of marine mammals, birds and reptiles. The report also highlights the need for more robust methods of estimating discards, and the development of bycatch management plans.
Download or read book Evaluation of Trawls for Monitoring and Harvesting Fish Populations in Lake Oahe South Dakota written by William Roland Nelson and published by . This book was released on 1974 with total page 16 pages. Available in PDF, EPUB and Kindle. Book excerpt: Trawls of various designs and sizes were compared to evaluate their use for monitoring and harvesting fish populations in Lake Oahe. Catches of a 20.7-m semiballoon trawl, selected to monitor changes in the fish populations from 1965 to 1970, showed a downward trend in the abundance of all species, except walleye; the decline was largest in the lower area of the reservoir with a slight increase in the upper area. Of two trawl designs tested, semiballoon trawls captured more fish per hour than high-rise trawls, and a 15.9-m semiballoon trawl with a 3.8-cm mesh cod end captured fish at the highest and most consistent rate. The size and species composition of the fish caught in small-mesh trawls differed from thos caught in trap nets. Trawl cataches were too small to recommend or warrant their use as a commercial fishing gear, but the use of both small mess trawls and trap nets should improve accuracy in monitoring fish populations in this reservoir.
Download or read book An Analysis of the Fishing Capacity of the Namibian Fleet in Quota limited Fisheries written by Richard Moorsom and published by . This book was released on 1994 with total page 86 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Reports the Stakeholder Consultation Meetings Fishing Capacity Reduction of Trawl and Push Net Fisheries in the Gulf of Thailand written by Thailand. Krom Pramong and published by . This book was released on 2008 with total page 77 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Common Fisheries Policy written by Ernesto Penas Lado and published by John Wiley & Sons. This book was released on 2016-04-18 with total page 409 pages. Available in PDF, EPUB and Kindle. Book excerpt: Dieses ausfuhrliche und umfassende Fachbuch von Ernesto Pe?as, Generaldirektion Maritime Angelegenheiten und Fischerei bei der Europaischen Kommission, erlautert umfanglich die Gemeinsame Fischereipolitik (GFP), politische Grundsatze, die fur Wissenschaftler und Experten im Fischereiwesen uberaus wichtig sind. Die einleitenden Kapitel dieses ausgezeichneten Werks beleuchten die Geschichte der GFP, die Anfange und Weiterentwicklungen. Im Anschluss werden die wesentlichen Aspekten der GFP behandelt, darunter die Regelungen fur den Erhalt der Fischbestande, fur Fischereiflotten, zu Struktur, Kontrolle und Umwelt, zum externen Sektor sowie wissenschaftliche Empfehlungen, Informationen zu Interessenvertretern und zur Entscheidungsfindung. Weitere Kapitel behandeln das Mittelmeer, Aquakulturen und Reformen der Gemeinsame Fischereipolitik. Ein Ausblick auf die Zukunft der GFP folgt am Ende des Buches. The Common Fisheries Policy ist ein wichtiges Referenzwerk fur Wissenschafter und Experten im Fischereiwesen weltweit und bietet eine Fulle wichtiger Informationen fur Biologen der Fachrichtung, Biologen im Bereich Naturschutz, Meeresbiologen, Umweltwissenschaftler und Okologen in Hochschuleinrichtungen, bei Regierungsstellen und NGOs sowie in der Industrie. An allen Hochschulen und Forschungseinrichtungen weltweit, die sich mit Fischereiwesen und/oder Biowissenschaften beschaftigen, sollten dieses Referenzwerk in ihren Bibliotheken vorhalten.
