Related items
Showing items related by metadata.
-
MeetingMeeting documentTWELFTH (VIRTUAL) SESSION OF THE SCIENTIFIC ADVISORY GROUP (SAG), 19-20 June 2023 - Intersessional activities by WECAFC Secretariat: Coordination of the activities of the Advisory Groups, the IWG/Strategic reorientation process, the Executive Committee and other major actions to support the achievement of the goals and objectives of the Commission
WECAFC/SAG/XII/2023/4
2023Also available in:
-
MeetingMeeting document
-
MeetingMeeting documentTWELFTH (VIRTUAL) SESSION OF THE SCIENTIFIC ADVISORY GROUP (SAG), 19-20 June 2023 - Guidance Template for preparation of working group presentations
WECAFC/SAG/XII/2023/5
2023Also available in:
Users also downloaded
Showing related downloaded files
-
MeetingMeeting documentTWELFTH (VIRTUAL) SESSION OF THE SCIENTIFIC ADVISORY GROUP (SAG), 19-20 June 2023 - Summary of the priorities established at the XXXVII FAO Regional conference for Latin America and the Caribbean and the potential contribution of fisheries and aquaculture
WECAFC/SAG/XII/2023/3
2023Also available in:
-
Book (stand-alone)Technical studyTechnical guidelines for scientific surveys in the Mediterranean and the Black Sea
Procedures and sampling for demersal (bottom and beam) trawl surveys and pelagic acoustic surveys
2020Also available in:
No results found.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. -
MeetingMeeting document