A revised checklist of the fish fauna of the Black Sea is reported. This paper is the first attempt to present an actual Check List of the fishes in the Black Sea according to the data available in Black Sea countries, as well as their current conservation status, enlisted in IUCN. The total number of Black Sea fish species is 189. Concerning the conservation status, only two species (1.06 %) are extinct (Acipenser nudiventris and A. sturio), 3.70 % are critically endangered, 16.40 % are vulnerable, 1.06% are endangered; for 10.58 % there is a lack of data, 26.46% has been classified in the category "Least concern", 2.65 % are "Near threatened" and 38. 10% are "Not evaluated".
The aim of the present paper is to compile a list of the invasive alien species on the Black Sea coast of Georgia. The results have been received from an assessment of data collected from different sources. According to recent data, the greatest number of species (36%) has arrived into the Black Sea from the Mediterranean as a consequence of expanding the natural range or coming through the ballast waters. This proportion has increased with the rising water temperatures of the upper layer. Only a few of these species have become abundant and almost none have reached other seas of the Ponto-Caspian. Among these species are the representatives of micro-, phyto- and zooplankton, demersal plankton, macrophytes, zoobenthos and fish.
Summary:The economic downturn in the 1990s and early 2000s associated with the break-up of the Soviet Union had a negative impact on Georgian fisheries. Both marine and freshwater fisheries and aquaculture suffered considerable decline. The Georgian fishing fleet deteriorated. The role of state institutions in fisheries management weakened and funding of scientific research diminished. Economic and institutional problems had a negative effect on the state of aquatic bio-resources. The excessive and relentless use of living resources, use of illegal fishing gear and degradation of coastal ecosystems led to a considerable reduction in fish stocks, while the number of vulnerable and endangered species increased. Starting from the new millennium the attitude has changed. In 2004-2005 the 15-year plan for the development of the ecosystem approach to fisheries in Georgia was initiated with support from the FAO. A Georgian law on fisheries and aquaculture has been introduced. Discussions on responsible fisheries and an aquaculture code have also started, but are still pending. On the other hand, the fisheries department of the Ministry of Agriculture was abolished and the single fisheries research institute met a similar fate. Fisheries regulation came under the authority of the ministry of environment. There is still a lot to be done in order to establish an ecosystem approach to fisheries in Georgia. First of all, the legislative base must be addressed, including the Georgian law on fisheries, which would consider such issues as long-term sustainable development of fisheries, a responsible code of conduct for fishermen, monitoring and management structures at the national level, allocation of resources and application of scientific approaches in development of fisheries, aquaculture and mariculture.Keywords: ecosystem approach; responsible fishery; hydrobionts; aquaculture; mariculture; fish farms. Importancia del enfoque ecosistémico en las pesquerías de GeorgiaResumen: La crisis económica del la década de 1990 y principios de 2000 asociada a la caída de la Unión Soviética tuvo un impacto negativo sobre las pesquerías de Georgia. Tanto la pesca de agua dulce como la acuicultura marina sufrieron un importante descenso. La flota pesquera de Georgia se deterioró. Se debilitó el papel de las instituciones estatales en las pesquerías y la financiación de la investigación científica disminuyó considerablemente. Los problemas económicos e institucionales tuvieron un efecto negativo en el estado de los recursos biológicos acuáticos. El uso excesivo de los recursos vivos, el uso de artes de pesca ilegal y la degradación de los ecosistemas costeros, provocó una considerable reducción de las poblaciones de peces, al tiempo que aumentó el número de especies vulnerables y en peligro de extinción. A partir del nuevo milenio la actitud ha cambiado. En el período 2004-2005, con el apoyo de la FAO, se inició el plan de 15 años de duración para el desarrollo del enfoque ecosistémico de la pesca en Georgia. Se introdujo una nueva ley ...
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