Download or read book Manual on Estimation of Selectivity for Gillnet and Longline Gears in Abundance Surveys written by Holger Hovgêrd and published by Food & Agriculture Org.. This book was released on 2008-04-29 with total page 96 pages. Available in PDF, EPUB and Kindle. Book excerpt: This manual defines methods for estimating selectivity of gillnet and longline gears, with particular reference to the use of these gears in abundance surveys. The manual illustrates how gear design, the basic concepts of size selection and fish morphometric data can be used to model selectivity. Statistical estimation methods are described in detail, and examples given of their application in spreadsheets. The efficient use of these gears in abundance and research surveys is also discussed. Although the manual concentrates on gillnets and longlines, the methods given are general enough to be relevant to any research involving gear selectivity
Download or read book Fishing with Bottom Gillnets written by Ian Rosman MacDonald and published by Food & Agriculture Organization of the UN (FAO). This book was released on 1980 with total page 48 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Behavior of Marine Fishes written by Pingguo He and published by John Wiley & Sons. This book was released on 2011-06-09 with total page 410 pages. Available in PDF, EPUB and Kindle. Book excerpt: BEHAVIOR OF MARINE FISHES BEHAVIOR OF MARINE FISHES: Capture Processes and Conservation Challenges Understanding fish behavior in relation to capture processes in marine fisheries is of fundamental importance to reducing bycatch and discards, and to enhancing marine fisheries conservation efforts. A thorough understanding of this allows commercial fishers to more effectively capture target species while reducing the catch of unwanted species. Behavior of Marine Fishes: Capture Processes and Conservation Challenges provides the reader with principles, patterns, and characteristics on fish behavior and fish capture processes using several types of important commercial fishing gears. The book also highlights conservation challenges facing the marine capture fisheries in efforts to maintain sustainable use of marine resources and to reduce negative impacts to the marine ecosystem. This volume, with contributions from leading applied fish behaviorists and fishing gear technologists from around the world, will be a valuable reference for researchers, fishing gear technologists, fisheries managers, students, and conservationists. SPECIAL FEATURES: Synthesis of current research and valuable knowledge that will help reduce bycatch and discards in commercial fisheries Review of basic fish behavioral principles and patterns and their relation to capture methods and conservation efforts Contributions from leading international applied fish behaviorists and fishing gear technologists
Download or read book Flatheads and Spooneys written by Jens Lund and published by University Press of Kentucky. This book was released on 2021-10-21 with total page 304 pages. Available in PDF, EPUB and Kindle. Book excerpt: Since the early 1800s, people have made a living fishing and harvesting mussels in the lower Ohio Valley. These river folk are conscious of an occupational and social identity separate from those who earn their living from the land. Sustained by a shared love of the river, deriving joy from the beauty of their chosen environment, and feeling great pride in their ability to subsist on its wild resources and to master the skills required to make a living from it, many still identify with the nomadic houseboat-dwelling subculture that flourished on the river from the early nineteenth century to the 1950s. Today's community of fisherfolk is small and economically marginal, but their activities sustain a complex set of traditional skills and a body of verbal folklore associated with river life. In Flatheads and Spoonies, Jens Lund describes the activities, boats, gear, verbal lore, and sense of identity of the fisher folk of the lower Ohio River Valley and provides historical and ethnobiological background for their way of life. Lund connects the importance of river fish in the diet of inhabitants of the valley to local fishing activities and explores the relationship between river people and those whose culture is primarily land-based, painting a colorful portrait of river fishing and river life. This book offers a look—historical and ethnographic—at a little-known aspect of traditional life in the American Midwest, still surviving today despite immense changes in environment, resources, and economic base.
Download or read book Federal Register written by and published by . This book was released on 1945 with total page 1080 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book A Gillnet s Drift written by W.N. Marach and published by Heritage House Publishing Co. This book was released on 2014 with total page 208 pages. Available in PDF, EPUB and Kindle. Book excerpt: One Friday morning in the spring of 1972, an ad in the Vancouver Sun caught Nick Marach's eye: GILLNETTER FOR SALE. A young architect who had just returned to the west coast from a yearlong motorcycle trip abroad, Marach was not looking for a change of career-but he was looking for a boat to live on, and the price of the old gillnetter was cheap . A Gillnet's Drift takes the reader back to a time when the salmon runs on the BC coast were strong, and all it took to call oneself a commercial fisher was a boat, a net, and a licence. No experience was required. It was during this era that Nick Marach found himself, quite unexpectedly, with a new vocation and a new lease on life. For the next decade, he spent every salmon season navigating the waters off BC, following his bliss, and many times narrowly escaping with his life. Along the way he befriended a slew of colourful characters, met the love of his life, and somehow in the midst of it all still found the time to be an architect . This book captures the allure of the gillnetter's life in a bygone era, but it is also about the freedom of youth, the desire for self-expression, and the refusal to ever settle down completely, even when you have an office and a family waiting for you on dry land.
Download or read book Gillnet Hanging written by Paula Cullenberg and published by University of Alaska Sea Grant. This book was released on 1997-01-01 with total page 20 pages. Available in PDF, EPUB and Kindle. Book excerpt: Gillnet Hanging, 1997 edition, is an illustrated, step-by-step guide for fishermen. Hanging a gillnet, which involves tying the web to the corkline and leadline, and customizing the net for a specific fishery, is critical to success in catching fish. Ideal companion to the Hanging a Gillnet video, MAPV-13.
Download or read book Catalogue of fishing gear in the Mediterranean and Black Sea region written by Lucchetti, A., Petetta, A., Bdioui, M., Gökçe, G., Saber, M., Sacchi, J., Ozbilgin, H., Carlson, A., Carpentieri, P. and published by Food & Agriculture Org.. This book was released on 2023-10-30 with total page 402 pages. Available in PDF, EPUB and Kindle. Book excerpt: The wide variety of marine species of the Mediterranean and the Black Sea, found in different geographical subregions and habitats, has led to the development of a highly diversified fishing sector characterized by a broad range of fishing gear. Over time, harvesting marine resources has become more efficient due to a progressively improving understanding of the habits and behaviours of the various target species. In order to find ways to conserve fish resources and the marine environment, there is a need to further study these different types of fishing gear as well as to develop less impactful techniques. To this end, a comprehensive overview of fishing gear and methods in use in the Mediterranean and the Black Sea can facilitate the mitigation of incidental catch of vulnerable species, the mitigation of adverse impacts of fisheries on juvenile fish and discards, the decarbonization of fishing fleets through more energy efficient gear, the development of innovative gear to remove marine litter, and the reduction of lost, abandoned and otherwise discarded fishing gear, to name a few. This catalogue aims to provide such an overview and to describe the main technical characteristics and modes of use of fishing gear in operation in the region, considering specificities and differences not only at the regional level but also at the country and local levels.
Download or read book Commercial Fisheries Review written by and published by . This book was released on 1962 with total page 1456 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Western Fisheries written by and published by . This book was released on 1976 with total page 370 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Fishery Market News written by and published by . This book was released on 1942 with total page 788 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 424 pages. Available in PDF, EPUB and Kindle. Book excerpt: Recent decades have witnessed strong declines in fish stocks around the globe, amid growing concerns about the impact of fisheries on marine and freshwater biodiversity. Fisheries biologists and managers are therefore increasingly asking about aspects of ecology, behaviour, evolution and biodiversity that were traditionally studied by people working in very separate fields. This has highlighted the need to work more closely together, in order to help ensure future success both in management and conservation. The Handbook of Fish Biology and Fisheries has been written by an international team of scientists and practitioners, to provide an overview of the biology of freshwater and marine fish species together with the science that supports fisheries management and conservation. This volume, subtitled Fisheries, focuses on a wide range of topics, including the history of fisheries science, methods of capture, marketing, economics, major models used in stock assessments and forecasting, ecosystem impacts, marine protected areas and conservation. It builds on material in Volume 1, Fish Biology, which ranges from phylogenetics and biogeography to physiology, recruitment, life histories, genetics, foraging, reproductive behaviour and community ecology. Together, these books present the state of the art in our understanding of fish biology and fisheries and will serve as valuable references for undergraduates and graduates looking for a comprehensive source on a wide variety of topics in fisheries science. They will also be useful to researchers who need up-to-date reviews of topics that impinge on their fields, and decision makers who need to appreciate the scientific background for management and conservation of aquatic ecosystems. To order volume II, go to the box in the top right hand corner. Alternatively to order volume I, go to: http://www.blackwellpublishing.com/book.asp?ref=0632054123 or to order the 2 volume set, go to: http://www.blackwellpublishing.com/book.asp?ref=0632064838. Provides a unique overview of the study of fish biology and ecology, and the assessment and management of fish populations and ecosystems. The first volume concentrates on aspects of fish biology and ecology, both at the individual and population levels, whilst the second volume addresses the assessment and management of fish populations and ecosystems. Written by an international team of expert scientists and practitioners. An invaluable reference tool for both students, researchers and practitioners working in the fields of fish biology and fisheries.
Download or read book Special Scientific Report written by and published by . This book was released on 1956 with total page 1288 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Sea Grant Abstracts written by and published by . This book was released on 1995 with total page 464 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Navigating Troubled Waters written by James R. Mackovjak and published by . This book was released on 2010 with total page 278 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Florida Folklife Reader written by Tina Bucuvalas and published by Univ. Press of Mississippi. This book was released on 2012 with total page 322 pages. Available in PDF, EPUB and Kindle. Book excerpt: An overview of the traditional, changing folklife from a vibrant southern state
Download or read book Scientific Council Studies written by and published by . This book was released on 1981 with total page 500 pages. Available in PDF, EPUB and Kindle. Book excerpt:
