Download or read book Pair Trawling with Small Boats written by H. S. Noel and published by Food & Agriculture Org.. This book was released on 1980 with total page 88 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book High Seas Bottom Trawl Fisheries and Their Impacts on the Biodiversity of Vulnerable Deep sea Ecosystems written by Matthew Gianni and published by IUCN. This book was released on 2004 with total page 104 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Socio economics of trawl fisheries in Southeast Asia and Papua New Guinea written by Food and Agriculture Organization of the United Nations and published by Food & Agriculture Org.. This book was released on 2018-06-06 with total page 249 pages. Available in PDF, EPUB and Kindle. Book excerpt: These studies on the role of trawl fisheries for food security and the potential impacts of management measures reveal major differences across countries in fishing practices, including crew demographics and income-sharing arrangements.
Download or read book Rationalization of the Pacific Coast Groundfish Limited Entry Trawl Fishery Including Regulatory Impact Review and Initial Regulatory Flexibility Analysis written by and published by . This book was released on 2009 with total page 848 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Advances and best practices in bycatch reduction in tropical shrimp trawl fisheries written by Eayrs, S., Fuentevilla, C. and published by Food & Agriculture Org.. This book was released on 2021-10-25 with total page 142 pages. Available in PDF, EPUB and Kindle. Book excerpt: This technical report describes efforts to mitigate bycatch through gear modifications and adaptations in the tropical shrimp-trawl fisheries of over 30 countries. It provides a summary of efforts by each country and then synthesizes them to identify and describe best practice. A best practice in bycatch reduction is the application or adoption of appropriate, recognized approaches to modifying fishing gear, with the objective of reducing bycatch to the greatest extent practicable. This information serves as a benchmark to identify countries that are taking appropriate steps to reduce bycatch and those that are not. It also provides context from which the outcomes of research on bycatch reduction can be evaluated and compared, including the identification of effective bycatch reduction devices, and serves to identify future research priorities. In the context of this report, best practice includes the installation and use of TEDs and BRDs that are optimally rigged and operated so as to reduce bycatch. It also includes the application of appropriate regulations to ensure effective performance, as well as the introduction of effective outreach and extension programmes to enhance and sustain best practice to reduce bycatch.
Download or read book Report of the Regional Workshop on Approaches to Reducing Shrimp Trawl Bycatch in the Western Indian Ocean written by Sean T. Fennessy and published by Food & Agriculture Org.. This book was released on 2004 with total page 60 pages. Available in PDF, EPUB and Kindle. Book excerpt: The workshop was jointly organized by the FAO Fishery Industries Division, the Marine and Fisheries Research Institute (KMFRI) in Mombasa (Kenya) and the Oceanographic Research Institute in Durban (South Africa), and was hosted by KMFRI. The participants represented national fisheries administrations, non-governmental organizations and scientific institutions. During the workshop, participants discussed existing bycatch policy and legislation, the state of bycatch knowledge and impacts of bycatch, as well as methods for reducing bycatch or improving bycatch utilization in their respective countries. The participants recommended the use of bycatch reduction devices (BRDs) in the region, to harmonize the data collection among the countries and the improved utilization of bycatch.--Publisher's description.
Download or read book Impacts of Trawling and Scallop Dredging on Benthic Habitats and Communities written by Svein Løkkeborg and published by Food & Agriculture Org.. This book was released on 2005 with total page 70 pages. Available in PDF, EPUB and Kindle. Book excerpt: This publication examines recent experimental studies of the impact of towed fishing gears, such as trawls and scallop dredges, on benthic habitats and communities (organisms that live at or near the bottom of the sea). The review gives a critical evaluation of the methodological limitations of impact studies, given the complexity and natural variability of benthic communities.
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 116 pages. Available in PDF, EPUB and Kindle. Book excerpt:
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 Effects of Trawling and Dredging on Seafloor Habitat written by National Research Council and published by National Academies Press. This book was released on 2002-07-09 with total page 136 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 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 Bottom Trawls for Small scale Fishing written by J. C. Brabant and published by Food & Agriculture Org.. This book was released on 1979 with total page 52 pages. Available in PDF, EPUB and Kindle. Book excerpt: This paper contains the designs of high opening bottom trawls which could be suitable for 50-180 hp small-scale fishing trawlers operating in coastal waters and large lakes. All necessary information for the construction of these trawls as well as for the preparation and adjustment of their rigging is supplied. This information is especially intended for small-scale fisheries skippers, and skipper-owners, as well as fishing net makers. Fishery officers, technicians, instructors, extension workers, especially in developing countries, are also likely to be interested.
Download or read book Vessel trip report on aimed bottom trawling for orange roughy in the southwestern Indian Ocean June July 2009 written by Sanders, J. and published by Food & Agriculture Org.. This book was released on 2023-03-18 with total page 68 pages. Available in PDF, EPUB and Kindle. Book excerpt: This report describes the observations of the reporting officer aboard the FV Will Watch during a trip in June–July 2009 (Trip 36). The 49-day trip primarily involved bottom trawling for orange roughy around Walters Shoal in areas beyond national jurisdiction (ABNJ) in the southwestern Indian Ocean. This report documents relevant information on operational issues related to aimed trawling, specific issues in this fishery, the potential for further collaboration with the deep-sea fishing industry in this region, as well as an overview of the fishery that is relevant to current and future policy.
Download or read book On Trawling written by Alfred W. Ansell and published by . This book was released on 1883 with total page 40 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Bottom Trawling and Scallop Dredging in the Arctic written by Elena Guijarro Garcia and published by Nordic Council of Ministers. This book was released on 2007 with total page 378 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Development and Operation of Television for Studying Fish Behavior in Otter Trawls written by John R. Clark and published by . This book was released on 1959 with total page 28 pages. Available in PDF, EPUB and Kindle. Book excerpt: Underwater television equipment (Image Orthicon) used for studying the behavior of fish in otter trawls is described. Development of the equipment, including the television chain itself and the accessory power source, lights, etc., plus some methods of using the equipment are explained. Considerable attention is devoted to problems of operation, particularly to the difficulties in handling the camera cable.
Download or read book Fishes Collected by Midwater Trawls During Two Cruises of the David Starr Jordan in the Northeastern Pacific Ocean April June and September October 1972 written by and published by . This book was released on 1997 with total page 336 pages. Available in PDF, EPUB and Kindle. Book excerpt:
