Download or read book Review and Assessment of Mitigation Measures to Reduce Incidental Catch of Seabirds in Longline Trawl and Gillnet Fisheries written by Svein Løkkeborg and published by . This book was released on 2008 with total page 24 pages. Available in PDF, EPUB and Kindle. Book excerpt: Growing concerns have been raised about incidental capture of seabirds in various types of fisheries. Most attention has been given to bycatches of albatrosses in the longline fisheries of the southern Ocean. This report describes technical and management mitigation measures that have been tested in longline, trawl and gillnet fisheries, and critically reviews their fishery suitability in terms of efficiency and practical applicability. It is emphasized that studies based on observer data must be interpreted with caution, and the only way to determine the effectiveness of a mitigation measure is to apply an experimental approach including a control treatment without any mitigation device. There is no single solution to mitigate incidental seabird mortality in longline fisheries, and this review gives strong evidence that the efficiency of a mitigation measure is specific to each fishery. However, there is potential for considerable reductions in seabird mortality rates in all longline fisheries by employing appropriate and effective mitigation measures. In the Northern Hemisphere, where northern fulmar is the dominant seabird captured, streamer lines have proved to be very efficient in demersal fisheries. In the Southern Hemisphere, night setting has shown to be an efficient mitigation measure, and this measure should be used in combination with other measures such as streamer lines and longlines with integrated weight when fishing in areas inhabited by nocturnal and diving seabirds. Although few studies have been conducted in trawl fisheries, results indicate rare interactions between seabirds and trawl gear at times of no offal discharge. Studies reported to date suggest that no-discharge policy and ban of netsonde cables would virtually eliminate seabird mortality. During trawling carried out under offal discharge, streamer lines proved to be an efficient mitigation measure. Studies in gillnet fisheries are very scarce, and development of seabird mitigation measures for this gear type is in its infancy. Future research on seabird mitigation measures in longlining should apply an experimental approach to fine-tune the most promising mitigation measures for each specific fishery. Mitigation measures have been tested in only a few trawl and gillnet fisheries, and this work needs to be expanded to other areas where interactions with seabirds occur. Promising measures have been identified for trawls but not for gillnet fisheries.
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.
Download or read book Review of Measures Taken by Intergovernmental Organizations to Address Sea Turtle and Seabird Interactions in Marine Capture Fisheries written by Eric Gilman and published by Food & Agriculture Org.. This book was released on with total page 120 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 Seabird Bycatch written by Edward F. Melvin and published by Alaska Sea Grant College Program. This book was released on 2001 with total page 224 pages. Available in PDF, EPUB and Kindle. Book excerpt: Seabird Bycatch significantly adds to the knowledge base of seabird mortality in commercial fisheries, and emphasizes the importance of comprehensive solutions. The product of a 1999 symposium held by the Pacific Seabird Group, Seabird Bycatch is a response to escalating bycatch, a global conservation and fisheries management issue.
Download or read book The Incidental Catch of Seabirds by Longline Fisheries written by Nigel P. Brothers and published by . This book was released on 1999 with total page 100 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Report of the Expert Consultation on Best Practice Technical Guidelines for IPOA NPOA Seabirds written by Food and Agriculture Organization of the United Nations and published by FAO Fisheries and Aquaculture. This book was released on 2009 with total page 50 pages. Available in PDF, EPUB and Kindle. Book excerpt: Incidental mortality in commercial fisheries around the world is a threat to seabirds and is causing decline in many breeding populations. Guidelines were prepared during this Expert Consultation to assist countries in developing policies and plans of action for reducing incidental catch and mortality of seabirds in fisheries.
Download or read book Classification and illustrated definition of fishing gears written by Food and Agriculture Organization of the United Nations and published by Food & Agriculture Org.. This book was released on 2021-07-02 with total page 110 pages. Available in PDF, EPUB and Kindle. Book excerpt: This document elaborates the revised International Standard Statistical Classification of Fishing Gear (ISSCFG), as endorsed and adopted for implementation by the FAO Coordinating Working Party on Fishery Statistics (CWP) at its Twenty-fifth Session in February 2016 in Rome, Italy. The classification applies to commercial, subsistence and recreational fisheries in marine and freshwater fisheries. The document provides definitions and illustrations of the configuration and mode of operation of typical fishing gears. The primary purpose is to assist FAO Members, regional fishery bodies, as well as those working on fishery statistics and management, to correctly attribute and report fisheries catches made by different gear types. The document also contributes to the prevention, deterrence and elimination of illegal, unreported and unregulated (IUU) fishing by providing monitoring, control and surveillance personnel with information to identify the type of fishing gear with regard to licence and authorization to carry out fishing operations. Finally, the document also provides context and references for some contemporary conservation issues related to major fishing gear types; it can therefore be used as a reference text for students and researchers in fisheries and marine conservation.
Download or read book Seabird Interactions with Fisheries in the Australian Fishing Zone written by and published by . This book was released on 2002 with total page 145 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Conservation of Marine Birds written by Lindsay Young and published by Academic Press. This book was released on 2022-09-27 with total page 626 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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
Download or read book Fishing Operations written by and published by Food & Agriculture Org. This book was released on 2009 with total page 49 pages. Available in PDF, EPUB and Kindle. Book excerpt: These guidelines have been produced to support implementation of the International Plan of Action for Reducing Incidental Catch of Seabirds in Longline Fisheries (IPOA-Seabirds). They are addressed to decision-makers and policy-makers associated with conserving seabirds and with minimizing their interaction with fishing gears, but the Guidelines should also be of interest to fishing industries and other parties.
Download or read book Integrating Emerging Technologies into Marine Megafauna Conservation Management written by Peter H. Dutton and published by Frontiers Media SA. This book was released on 2020-01-16 with total page 246 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Study on Mitigation Measures to Minimise Seabird Bycatch in Gillnet Fisheries written by and published by . This book was released on 2018 with total page 109 pages. Available in PDF, EPUB and Kindle. Book excerpt: The incidental capture of non-target marine animals in fishing gear, such as seabirds, cetaceans, elasmobranchs, and turtles, is commonly referred to as 'incidental bycatch'. Seabird bycatch in bottom set gillnet fisheries (GNS) is known to be a major conservation issue both globally and within Europe; an estimated 76,000 birds are caught annually in the Baltic Sea alone (Žydelis and others 2013). Diving seabirds, such as seaducks, auks, divers, grebes and cormorants are particularly susceptible to capture in this gear. Gillnets, made of thin nylon twine, are essentially invisible under water, and diving birds are presumably not able to perceive the net whilst foraging at depth, becoming entangled and drowning. This particular fishing gear is used extensively across Europe, with both small and large-scale fleets operating in EU member states' waters. A lack of systematic data collection across most of Europe on gillnet fishing effort (particularly small-scale vessels) and on bycatch has meant that little information is available to assess which countries, fleets and sites are particularly at risk of causing seabird bycatch. Despite the general lack of information, some studies on seabird bycatch in gillnets have been conducted over the past few decades and these indicate that specific regions of Europe are 'hotspots' for bycatch in this gear. The Baltic Sea, with its internationally important populations of wintering seaducks, such as long-tailed duck, velvet scoter, common and steller's eider is one such 'hotspot'. In addition to the lack of fine scale information on gillnet fisheries, one of the most significant challenges for managing bycatch in this gear is the lack of technical solutions. For other fishing gears, such as longlines and trawls, technical solutions have already been developed and successfully implemented in a number of fisheries (largely outside of the European Union), resulting in substantial reductions (or even the elimination) of seabird bycatch.
Download or read book The Incidental Catch of Seabirds by Longline Fisheres written by Nigel P. Brothers and published by . This book was released on 1999 with total page 100 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Incidental catch of vulnerable species in Mediterranean and Black Sea fisheries A review written by Carpentieri, P., Nastasi, A., Sessa, M., Srour, A. (eds.) and published by Food & Agriculture Org.. This book was released on 2021-06-28 with total page 339 pages. Available in PDF, EPUB and Kindle. Book excerpt: Bycatch – a term widely used to refer to part of the catch unintentionally caught during a fishing operation, in addition to target species, and consisting of the discards and incidental catch of vulnerable species – is considered one of the most important threats to the profitability and sustainability of fisheries, as well as to the conservation of the marine environment and ecosystems. Understanding the bycatch issue and adopting effective measures in order to reduce bycatch rates are essential steps towards minimizing the impacts on vulnerable species and ensuring both a sustainable fisheries sector and healthy seas. In the Mediterranean and the Black Sea, the incidental catch of vulnerable species – namely seabirds, sea turtles, elasmobranchs, marine mammals and macrobenthic invertebrates – represents one of several challenges for the industrial, semi-industrial and small-scale fisheries that coexist in the region, as well as for the diverse and sensitive ecosystems impacted. Typically, data on this issue have been collected in an opportunistic manner and in ways that make comparisons difficult. The annual absolute values of incidental catch of vulnerable species are not available: studies cover only a small portion of the total fishing activity and often present important knowledge gaps for many types of fishing gear, countries and/or subregions, as well as on temporal scales, for example, to establish reliable baselines. The result is that little is known of the scope of the problem, despite incidental catch being a significant pressure on the populations of vulnerable species, as well as a concern for fishers.This regional review is an attempt to compile, in one single document, all available data and historical records on the incidental catch of vulnerable species in the Mediterranean and Black Sea fisheries, obtained from existing literature, databases and other grey sources, and collated in a standardized and comparable way. The main objective is to provide comprehensive baseline information, earmark the main data gaps, as well as identify the most impacting types of fishing gear by taxonomic group. This work is a reminder of the importance of standardized data collection and the need to have baseline information in order to support decision-making in the identification of appropriate bycatch mitigation techniques, thus enabling analysis of their effectiveness and comparison over time and space, as well as facilitating the implementation of relevant conservation and/or management measures at the national, subregional and regional levels.
Download or read book Performance assessment of bycatch and discards governance by regional fisheries management organizations written by and published by IUCN. This book was released on with total page 498 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book 2008 national assessment report for reducing the incidental catch of seabirds in longline fisheries written by G. Barry Baker and published by . This book was released on 2010 with total page 101 pages. Available in PDF, EPUB and Kindle. Book excerpt:
