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Uzunova S.,Institute of Fishing Resources
Bulgarian Journal of Agricultural Science | Year: 2010

Seagrasses are marine flowering plants typically found on sandy or muddy substrata in the shallow coastal waters. They present à good biotope for associate flora and fauna. Two eelgrasses species are reported for Black Sea - Zostera marina Linnaeus, 1758 and Zostera noltii Hornemann, 1832. The aim of the present paper is to give evidence on the zoobenthos living in the Zostera spp. from the Bulgarian coastal area of the Black Sea. The investigations were carried out in August 2000. Total of 69 zoobenthic organisms, belonging to four groups: Polychaeta, Mollusca, Crustacea and Varia were collected. High values of abundance and biomass were recorded, due mainly to molluscan and crustacean species. Source

Ozturk B.,Istanbul University | Mihneva V.,Institute of Fishing Resources | Shiganova T.,RAS Shirshov Institute of Oceanology
Aquatic Invasions | Year: 2011

The ctenophore Bolinopsis vitrea is first reported from the Turkish and Bulgarian regions of the Black Sea. In Turkish waters, a considerable aggregation was found in Sile on the Asian side and at Kilyos on the European side in 2007. This appears to be the first record of this species in the Black Sea, which is known in the Mediterranean Sea including the Aegean Sea. Bolinopsis vitrea most likely penetrated with currents from the Aegean Sea via the Sea of Marmara into the Black Sea. In 2010 individuals of this species were recorded at two locations in Bulgarian waters where it may have entered with currents or else was released with ballast water. © 2011 The Author(s). Source

St Raykov V.,Institute of Fishing Resources | Bikarska I.,Executive Agency for Fishery and Aquaculture | Panayotova M.,Institute of Oceanology BAS | Lisichkov K.,University of Macedonia
Journal of Environmental Protection and Ecology | Year: 2011

For proper fisheries management it is important to know fishing effort. One of the main problems in the Black Sea region is the lack of comprehensive information concerning the fishing activity, catch quantities and composition and how it affects the current state of fish stocks. We identified that the implementation of the fishing vessels monitoring system (VMS) is a powerful source of information regarding the fishing areas, fishing effort and also ensuring reliable fishing statistics. We are aware that in the Fisheries sector is really difficult to produce authoritative reports on the catch quantities and composition on annual principle, which means that we do not have a clear picture in this matter and the analysis of the current state of the stocks is with a fair approach to accuracy. The communication between responsible authorities and data exchange on regional level are not systematic. Source

Agency: Cordis | Branch: FP7 | Program: CSA-SA | Phase: KBBE.2011.1.4-02 | Award Amount: 1.12M | Year: 2012

ComFish takes the view that it is not sufficient to focus on pressing issues in fisheries or on communication impasses between stakeholders in isolation (scientists industry policy makers). A broader view is necessary, and this is very much in line with the ecosystem approach of the revision of the Common Fisheries Policy to be implemented in 2012. In this frame of mind, ComFish aims to identify important fisheries topics with long term impacts and ascertain whether scientific results have been properly communicated to fisheries stakeholders. If yes, why and how was this done? If not, then the question must be answered which communication needs must be addressed. What are the related challenges, needed actions and possible solutions? ComFish will identify these topics and through five regional participatory stakeholder events address these communication impasses. Next, ComFish will use the outcome of the events to prepare Information Packages, that include audio-visual materials, and communicate the identified priority issues to a wider circle of stakeholders as well as to EU citizens. Finally, ComFish will organise a Partnering Event to facilitate network building amongst stakeholders, to jointly address and overcome communication impasses and to stimulate collaborations. All activities are supported by a robust science based impact analysis. ComFish has nine partners in eight EU countries: four are communication specialists and five are institutions engaged in marine research and policy advice. The project benefits from an extensive Advisory Board with representation from all major fisheries stakeholders in Europe as well as over 40 Project Associated Members, mostly FP6/FP7 research project co-ordinators. The project lasts 36 months.

Raykov V.St.,Institute of Oceanology | Yankova M.,Institute of Fishing Resources | Radu G.H.,NIMRD G. Antipa | Lisichkov K.,University of Macedonia
Journal of Environmental Protection and Ecology | Year: 2011

Estimation of the optimum levels of exploitation for the sprat is based on using the structured and non-structured equilibrium models for the north-western part of the Black Sea. In the present paper, based on the concept of maximum sustainable yield (MSY), some sustainable yield curves have been created. It was found for the Black Sea sprat that yield per recruit curves does not reached the maximum value within the range of fishing mortality investigated. Medium confidence band shows that at fishing mortality rates around 0.8 the ratio yield and fishable biomass at unexploited level is around 0.25. It is seen from the year/recruit (Y/R) analysis that recruitment is unaffected regardless of how low spawning stock biomass (SSB) falls. It was clear that levels of fishing mortality that produces yield per recruit (Y/R) at or near the maximum will also reduce the spawing stock biomass (SSB) to levels that are a tiny fraction of its unexploited level. The value of F 0.1 is arbitrary and thus, there is no guarantee that this is the proper management level for biological purposes (as a tonic for recruitment over fishing, for example) let alone when economic, social, and other environmental objectives are considered. Source

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