Related items
Showing items related by metadata.
-
Book (series)Elasmobranchs of the mediterranean and black sea: status, ecology and biology, biographic analysis 2012
Also available in:
No results found.The authors have compiled published information on taxonomy, distribution, status, statistics, fisheries, bycatch, biologic and ecologic parameters on age and growth, food and feeding habits, reproductive biology and stock assessment of elasmobranchs in the Mediterranean and Black Sea. This bibliographic analysis, through 661 papers dealing with elasmobranchs in the GFCM area, shows that cartilaginous species, including sharks, rays and chimaeras, are by far the most endangered group of marine fish in the Mediterranean Sea, with 31 species (40 percent of all) critically endangered, endangered or vulnerable. The biological characteristics of elasmobranchs (low fecundity, late maturity, slow growth) make them more vulnerable to fishing pressure than most teleost fish. Overfishing, wide use of non-selective fishing practices and habitat degradation are leading to dramatic declines of these species in the Mediterranean Sea. In general, elasmobranchs are not targeted but are caught incidentally. In many fisheries they are, however, often landed and marketed. The study also highlights the following points: – Works are concentrated mainly in the western Mediterranean. Few works concern endangered species and those of the GFCM priority list; – Much systematic confusion persists for some species and some others are doubtful; – The IUCN red list shows clearly the vulnerability of elasmobranchs and the lack of data; – A decline in cartilaginous fish speci es landings has been observed while fishing effort has generally increased; – A standardization of methods and expression of results on the biology should be generalized in the whole Mediterranean; – Papers on biologic parameters concern few species primarily in the occidental and central Mediterranean areas. Therefore, recommendations to fill gaps in order to protect and manage elasmobranchs stocks are proposed in this document. In fact, better understanding of the composition of incidental and targeted catches of sharks by commercial fisheries and biological and ecological parameters are fundamentally important for the conservation of these populations. Moreover, problems encountered by elasmobranchs in the GFCM area are highlighted and conservation measures are suggested. -
MeetingReport of the Workshop on the implementation of the Data Collection Reference Framework in the Mediterranean and the Black Sea
GFCM Scientific Advisory Committee (SAC). Madrid, Spain, 15–16 December 2014
2014Also available in:
No results found.The GFCM workshop on the implementation of the Data Collection Reference Framework (DCRF) in the Mediterranean and the Black Sea (Madrid, Spain, 15–16 December 2014) provided technical suggestions for improving two sections of the DCRF document: 1) structure of the data collection; and 2) common practices for data collection. The workshop recognized that the DCRF was an appropriate tool for gathering the data and information necessary both for the provision of advice by the Scientific Advisory C ommittee (SAC) and for supporting the adoption of sound management measures by the Commission. The workshop agreed on the draft terms of references related to the national focal point for data collection (NFC-DC), voiced support for this role as being instrumental in the correct implementation of, and follow-up on, the DCRF. Finally, the meeting proposed a detailed roadmap for the implementation of the DCRF and recommended using the proposed DCRF IT online platform as a core instrument in suppor t of the DCRF; an instrument to be further developed by the GFCM Secretariat in accordance with agreed technical specifications. -
MeetingReport of the GFCM Workshop on Artificial Reefs in the Mediterranean and Black Sea, Izmir, Turkey, 27 September 2013
GFCM Scientific Advisory Committee (SAC). Subcommittee on Marine Environment and Ecosystems (SCMEE). 27 September 2013, Izmir, Turkey
2013Also available in:
No results found.
Users also downloaded
Showing related downloaded files
No results found.