V. Shlyakhov

The Southern Scientific Research Institute of Marine Fisheries and Oceanography – YugNIRO | YUGNIRO

European anchovy is most abundant in the Azov and Black Sea Basin ichthyocenosis and plays leading role in the marine fisheries. There are two subspecies of the European anchovy in the Black Sea: the Black Sea anchovy Engraulis encrasicolus ponticus Aleksandrov and the Azov anchovy Engraulis encrasicolus maeoticus Pusanov. Wintering areas of both s...

STECF reviewed the report of the EWG 13-12 and note d the progress made regarding the assessment of Bla ck Sea stocks. STECF acknowledges the considerable eff orts of the WG participants in undertaking its work . The EWG 13-12 attempted to develop quantitative sto ck assessments for nine species but only five of th e assessments (sprat, turbot, whi...

Environmental changes and trophic relations in the ecosystem of the Black Sea are analyzed. We show that, during the last 30 years, the trophic structure of the ecosystem underwent considerable changes that led to a decrease in the efficiency of transfer of energy along food chains and a decrease in the productivity of populations of consumers. Unf...

The Scientific, Technical and Economic Committee for Fisheries gave its opinion by written procedure in November 2011 on request by the European Commission. In response to the ToR the STECF EWG 11-16 on Black Sea stock assessments has accomplished seven stock assessments approaches of sprat, turbot, anchovy, whiting, horse mackerel, piked dogfish a...

After its establishment in 2008 the STECF working group on Mediterranean stock assessments SGMED, covered by its mandate, also assesses exploited living resources in the Black Sea. STECF during its last plenary in July 2008 rejected the working group’s recommendation regarding specific fisheries management options for 2009. It was decide d a dedica...

The European Community is expected to establish long-term management plans (LTMP) for relevant Mediterranean demersal and small pelagic fisherie s based on precautionary approach and adaptive management in taking measures designed to protect and conserve living aquatic resources, to provide for their sustainable exploitation and to minimise the imp...

Scientific information about the Black Sea ecosystem with respect to jelly plankton – fisheries interactions is reviewed. Long time-series of the main components of pelagic community: fishes, invertebrates, discussed trends, and relationships between them are analysed. The amount of information and results from the analyses will be used to formulat...

Stock assessments for anchovy, sprat, whiting and horse mackerel during 1950–1994 is performed. The VPA analysis showed that the decline of these populations, mainly as a result of the intensification in fishing activity, is probably one of the major reasons for the mass development of the ctenophore Mnemiopsis leidyi. It is considered that the red...