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Monitoring discards in Mediterranean and Black Sea fisheries: methodology for data collection

2019-09-03 Technology & Engineering
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Release : 2019-09-03
Genre : Technology & Engineering
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Book Rating : 388/5 ( reviews)

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Book Synopsis Monitoring discards in Mediterranean and Black Sea fisheries: methodology for data collection by : Food and Agriculture Organization of the United Nations

Download or read book Monitoring discards in Mediterranean and Black Sea fisheries: methodology for data collection written by Food and Agriculture Organization of the United Nations. This book was released on 2019-09-03. Available in PDF, EPUB and Kindle. Book excerpt: Discards – the part of the catch that is not retained on board, which may include target species or any other (commercial and non-commercial) species that are returned at sea dead or alive – usually result in a reduction of harvesting opportunities and may have negative consequences on the stocks, ecosystems and the marine environment. In the Mediterranean and the Black Sea, studies on discards only cover a small portion of the total fishing activities and discard rates are often poorly estimated or totally unknown. Information is lacking for many types of fishing gear, countries and GFCM subregions, and most available studies only cover relatively short periods and small areas. Discards therefore represent a major source of uncertainty about the actual fishing mortality rates of stocks. These knowledge gaps highlight the need to expand discard monitoring programmes and standardize practices, so to assess discards appropriately and address their important impacts. This publication and the methodology discussed herein aim to provide a framework for the development and implementation of an efficient, standardized data collection and monitoring system for discards through on-board observations, questionnaires at landing sites and self-sampling activities. It ensures minimum common standards for the collection of discards data and allows for repeatability and comparisons among fisheries across the region, thus offering a harmonized basis of knowledge, information and evidence for decision-making.

Monitoring incidental catch of vulnerable species in the Mediterranean and the Black Sea: methodology for data collection

2019-09-03 Technology & Engineering
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Release : 2019-09-03
Genre : Technology & Engineering
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Book Rating : 485/5 ( reviews)

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Book Synopsis Monitoring incidental catch of vulnerable species in the Mediterranean and the Black Sea: methodology for data collection by : Food and Agriculture Organization of the United Nations

Download or read book Monitoring incidental catch of vulnerable species in the Mediterranean and the Black Sea: methodology for data collection written by Food and Agriculture Organization of the United Nations. This book was released on 2019-09-03. Available in PDF, EPUB and Kindle. Book excerpt: Bycatch – a term widely used to refer to the part of catch unintentionally captured during a fishing operation, in addition to target species, and consisting of discards and incidental catches 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. In the Mediterranean, studies on the incidental catch of vulnerable species cover only a small portion of the total fishing activity. In addition, there are several important knowledge gaps for many types of fishing gear, and several countries and/or subregions, as well as on temporal scales, and only a few measures are in place that address the protection of vulnerable species. Monitoring programmes and surveys on incidental catches, which follow a harmonized methodology allowing for results to be compared across subregions, are necessary to improve knowledge on the issue and to subsequently support the identification of potential mitigation methods and tools, and relevant management measures. This publication and the methodology contained herein aim to provide a framework for the development and implementation of an efficient, standardized data collection and monitoring system for all vulnerable species encountered in the Mediterranean and the Black Sea, namely elasmobranchs, marine mammals, seabirds, sea turtles, and macrobenthic invertebrates.

Technical guidelines for scientific surveys in the Mediterranean and the Black Sea

2020-05-01 Technology & Engineering
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Release : 2020-05-01
Genre : Technology & Engineering
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Book Rating : 553/5 ( reviews)

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Book Synopsis Technical guidelines for scientific surveys in the Mediterranean and the Black Sea by : Food and Agriculture Organization of the United Nations

Download or read book Technical guidelines for scientific surveys in the Mediterranean and the Black Sea written by Food and Agriculture Organization of the United Nations. This book was released on 2020-05-01. Available in PDF, EPUB and Kindle. Book excerpt: In the Mediterranean and the Black Sea, the assessment of demersal stocks mainly relies on scientific surveys (bottom and beam trawl) while the assessment of pelagic stocks is essentially based on acoustic surveys using acoustic techniques with mid-water trawling. These routine surveys-at-sea provide essential information, which in turn are crucial to fine-tune the assessments of the status of resources and to estimate more precisely indicators at the population and fish community levels. However, survey practices differ from one subregion to another, each approach having its own strengths and limitations. In addition, there is still a lack of large-scale standardized surveys aimed at analysing the diversity and distribution of the main demersal and pelagic species across the Mediterranean and the Black Sea. One way of tackling this issue is to carry out international scientific surveys covering the main demersal and pelagic stocks based on a common methodology. The methodology presented in this publication aims at supporting the planning and implementation of regional demersal (bottom and beam) trawl and pelagic acoustic surveys. It can be useful for the implementation of new surveys-at-sea in areas where demersal trawl and pelagic acoustic surveys are not regularly carried out. It can also contribute to increasing comparability between existing surveys thanks to the standardization of methods, sampling of catches and data recording and analysis. Finally, it represents a valuable tool to define minimum requirements towards sustainability and management objectives at the regional and subregional level.

Incidental catch of vulnerable species in Mediterranean and Black Sea fisheries – A review

2021-06-28 Technology & Engineering
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Release : 2021-06-28
Genre : Technology & Engineering
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Book Rating : 313/5 ( reviews)

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Book Synopsis Incidental catch of vulnerable species in Mediterranean and Black Sea fisheries – A review by : Carpentieri, P., Nastasi, A., Sessa, M., Srour, A. (eds.)

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.). This book was released on 2021-06-28. 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.

The State of Mediterranean and Black Sea Fisheries 2020

2020-12-14 Technology & Engineering
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Release : 2020-12-14
Genre : Technology & Engineering
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Book Rating : 241/5 ( reviews)

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Book Synopsis The State of Mediterranean and Black Sea Fisheries 2020 by : Food and Agriculture Organization of the United Nations

Download or read book The State of Mediterranean and Black Sea Fisheries 2020 written by Food and Agriculture Organization of the United Nations . This book was released on 2020-12-14. Available in PDF, EPUB and Kindle. Book excerpt: This third edition of the State of Mediterranean and Black Sea Fisheries provides a comprehensive overview of the status of fisheries in the region, looking at their main features and trends, in order to better inform their management and better examine current and future challenges that they will face in the near future. The aim of this report is to produce a document that could provide useful analysis and direction for decision-making and future action. In this respect, this publication also represents a convenient source of information for the FAO Committee on Fisheries and offers a practical complement to the data provided in the State of World Fisheries and Aquaculture published by the FAO Fisheries and Aquaculture Department. This volume includes seven chapters divided into two sections: a first part on the status and trends of different aspects of Mediterranean and Black Sea fisheries, including fleet, catches, socio-economic variables and bycatch, and a second part that focuses on the management of Mediterranean and Black Sea fisheries, including an overview on small-scale fisheries. This report is based to a large extent on the most up-to-date data available submitted by GFCM contracting and cooperating non-contracting parties, including information on stock status, national catches, fleet and socio-economic information up to 2018. It is also complemented with information from other sources.

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