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Материал Application of esterase polymorphism to specify population genetic structure of Engraulis encrasicolus (Pisces: Engraulidae) in the Black and Azov Seas(2013) Ivanova, P. P.; Dobrovolov, I. S.; Bat, L.; Kideys, A. E.; Nikolsky, V. N.; Yuneva, T. V.; Shchepkina, A. M.; Shulman, G. E.Genetic structure of anchovy populations was studied using genetic-biochemical markers. Anchovy samples collected between 1980 and 2006 from different Black Sea regions (off the Bulgarian, Turkish, Ukraine, and Georgian coasts) as well as from the Sea of Azov were analyzed. Three methods of electrophoresis were applied: starch gel electrophoresis, vertical polyacrylamide electrophoresis, and isoelectric focusing on thin polyacrylamide ampholine gel plates. On the base of long-term monitoring of allelic frequencies of the polymorphic non-specified esterases loci (EST-1* and EST-2*), wintering migration of Azov anchovy may have alternative routs along the western Black Sea coasts. Typical Azov anchovy winter together with the Black Sea anchovy form the mixed populations along the Ukrainian, Georgian, and Turkish Black Sea coasts. Azov anchovy was also registered along Bulgarian coast during the second part of May and July. The results allow supposing the north-western Black Sea as complementary spawning areas of Azov anchovy.Материал Composition and Abundance of Zooplankton of the Eastern Mediterranean(1999) Kovalev, A. V.; Kideys, A. E.; Pavlova, E. V.; Shmeleva, A. A.; Skryabin, V. A.; Ostrovskaya, N. A.; Uysal, Z.Материал Distribution of anchovy eggs and larvae (Engraulis encrasicolus Cuv.) in the Black Sea in 1991-1992(1994) Niermann, U.; Bingel, F.; Gorban, A.; Gordina, A. D.; Gucu, A. C.; Kideys, A. E.; Konsulov, A.; Radu, G.; Subbotin, A. A.; Zaika, V. E.Материал Long-term changes in the biomass and composition of fodder zooplankton in coastal regions of the Black Sea during the period 1957- 1996(1998) Kovalev, A. V.; Gubanova, A. D.; Kideys, A. E.; Melnikov, V. V.; Niermann, U.; Ostrovskaya, N. A.; Prusova, I. Yu.; Skryabin, V. A.; Uysal, Z.; Zagorodnyaya, Ju. A.Материал Neritization of the plankton fauna in the Mediterranean basin(2006) Kovalev, A. V.; Mazzocchi, M. G.; Kideys, A. E.; Skryabin, V. A.The plankton fauna neritization in the Mediterranean Seas basin is discussed. Neritization is an increase of the neritic species percentage in zooplankton composition from the Mediterranean to the Black and Sea of Azov; It has been shown that the percentage of oceanic species decreases considerably in the Mediterranean Sea, adjacent to Gibraltar strait if compared with the Atlantic region, and the share of neritic – oceanic and neritic species increases correspondingly. Some of these species were observed in the open sea. In the Black Sea, oceanic species are absent. Neritic – oceanic and neritic species, which came there from the Mediterranean Sea, are distributed through out the area. The shallow-water straits between the seas and considerable changes in salinity and temperature regime prevent penetration of oceanic and neritic – oceanic species into each following sea of the Mediterranean basin. Considerable decrease of each sea, increase of the shelf percentage, decrease in the system stability of the circulating currents, separating coastal waters, and these of central regions, facilitate spatial distribution of alien species all over with masses of the seas. The high abundance of neritic species in the Black and Sea of Azov central regions can be possibly explained by a decrease in number of competitors for food and predators (before introduction of Ctenophora Mnemiopsis leidyi A. Agassiz, 1865) and an increase in food concentration for zooplankton, from the Mediterranean Sea to the Black Sea and Sea of Azov.Материал Occurrence of the bathypelagic larvae of the polychaete, Vigtorniella zaikai in the southern part of the Black Sea(2006) Murina, V. V.; Kideys, A. E.; Ustun, F.; Toklu, B.The bathypelagic larvae of the polychaete, Vigtorniella zaikai, were found in the southern part of the Black Sea for the first time. The findings were made in the depths from 85 – 110 to 150 – 180 m at 14 stations. Maximum density (119 ind m-3) of the larvae was registered in suboxic zone (<10mM dissolved oxygen content, DOC), immediately above the hydrogen sulphide seawater layer. Vertical distribution of pelagic larvae of other polychaetes associated with V. zaikai was also studied. The deepest seawater layer adjoining redox zone was inhabited by V. zaikai, Protodrilus sp. and the larvae of Phyllodocidae gen. sp. These taxa compose the bathypelagic polychaetes fauna.Материал Reproduction characteristics and growth rate of ctenophore Beroe ovata larvae in the Caspian and Black Sea waters(2011) Finenko, G. A.; Arashkevitch, E. G.; Kideys, A. E.; Roohi, A.; Mirzajani, A.; Bagheri, S.; Birinci, Z.; Ustun, F.; Satilmis, H.; Sahin, F.; Bat, L.Reproduction characteristics, survival and growth rate of ctenophore Beroe ovata larvae were studied in the Caspian and the Black Sea water at salinity about 12 and 18 ‰ accordingly. Both larvae placed in the Caspian water with and without acclimation showed the lower values of reproduction indices as compared with those in the Black Sea water. Nevertheless, adult Beroe ovata could reproduce in the Caspian water even placed there without any salinity acclimation and some share of eggs (about 10 – 15 % of total number of the laid eggs) developed into larvae. In the Black Sea water the hatching success was much higher and was equal to 83 – 87 %. Beroe larvae grew in the Caspian Sea water though their growth rate was rather slow and survival was not as high as in the Black Sea.Материал Ribonucleic acid content and RNA-DNA ratio of Black Sea anchovy and sprat larvae(2000) Trusevich, V. V.; Yuneva, T. V.; Bingel, F.; Kideys, A. E.; Shulman, G. E.Материал Trophic Relationships and Food Supply of Heterotrophic Animals in the Pelagic Ecosystem of the Black Sea(Istanbul, Turkey, 2009) Besiktepe, S.; Svetlichny, L. S.; Hubareva, E. S.; Anninsky, B. E.; Finenko, G. A.; Abolmasova, G. I.; Romanova, Z. A.; Bat, L.; Kideys, A. E.; Shulman, G. E.; Yuneva, T. V.; Nikolsky, V. N.; Schepkina, A. M; Zabelinsky, S. A.; Yunev, O. A.During recent decades, the Black Sea has been affected by many negative factors that strongly changed the condition of its ecosystem. Especially trophic relationships in the Black Sea pelagic system became very vulnerable influencing the food supply, productivity and abundance of many species and populations of this marine basin. Food is one of most important link between biota and its environment. In this monograph, the role and variability of trophodynamic processes that effect the well-being (health) of main heterotrophic components of ecosystem were analysed in detail for a few key species as indicators for estimation of ecosystem condition in whole. These are most significant mass species of the Black Sea pelagic ecosystem. Among copepods this is Calanus euxinus that dominates the mesozooplankton which makes up the fodder base of planktivorous fishes. Among gelatinous these are medusa Aurelia aurita and the alien ctenophores Mnemiopsis leidyi and Beroe ovata which affected strongly mesozooplankton composition. Lastly among fishes the anchovy Engraulis encrasicolus ponticus and sprat Sprattus sprattus phalericus that dominate small pelagic fishery. We considered in this monograph: • Diel feeding behaviour, in situ feeding rate of Calanus euxinus and impact of mesozooplankton on primary production and phytoplankton biomass. • The effect of vertical migrations on energy budget and its components in C. euxinus; metabolic substrates used in catabolic processes under both aerobic and hypoxic conditions, the role of reserve lipids and effect of abiotic factors on individual growth and population structure of this species. • The intensity and efficiency of ingestion and energy transformation in three gelatinous species ( jellyfish Aurelia aurita, ctenophores Mnemiopsis leidyi and Beroe ovata) and their predatory impact on zooplankton community. • Nutritional condition and food supply of anchovy and sprat in the close interaction with natural biotic and abiotic and anthropogenic factors. • Tendencies in this interaction during long time space: since 1960 s till present years. • Estimation of population condition of these species and its long-term change. This monograph is the collective work of Ukrainian and Turkish scientists studying complex hydrobiological problems of the Black Sea. Its aim is to reveal the significance of nutritional factors on the ecology of Black Sea biota, including changes which have already occurred, as well as offering some insight into changes that may happen in the future. Our joint investigations started in the first half of the 1990s, when conditions for the close cooperation of researchers from the two countries were suitable after the collapse of the Soviet era. This spirit continues to the present day. Professor Ümit Unluata, Director of Erdemli Institute of Marine Sciences (Middle East Technical University, Ankara) was of paramount importance in organising and fostering the work undertaken. We would like to devote this monograph to the memory of him, who died so prematurely. We are also grateful to Academician Professor V. N. Eremeev, Director of the Sevastopol Institute of Biology of the Southern Sea (National Academy of Sciences of Ukraine), and to the directors of Erdemli Institute of Marine Sciences (Professor Ilkay Salihoglu, Professor Sukru Besiktepe and Professor Ferit Bingel) who also made significant contributions to the Ukrainian–Turkish collaboration. We are grateful to Dr Bill Parr from the Black Sea Ecosystem Recovery Project for his valuable efforts in improving earlier drafts. All these investigations were carried out within the framework of the following five NATO linkage-grants: • Pelagic animal food supply in the unstable Black Sea environment, • Will the new alien ctenophore Beroe ovata control the plankton community in the Black Sea? • Grazing, growth and production of Calanus euxinus in the Black Sea, • Bioindicators for assessment of Black Sea ecosystem recovery, • Adaptability and vulnerability of marine species in changing environments. And four TUBITAK - NASU joint projects: • Quantification of the recent ctenophore invader Beroe ovata impact in the Black Sea • Monitoring of the Black Sea anchovy and sprat, • Salinity tolerance as a key factor of invasion success of the copepods of Calanus genus into the Sea of Marmara, • Salinity tolerance as a key factor of invasion success of the mesozooplankton species into the Sea of Marmara. We hope that this publication will make a substantial contribution to future studies of the Black Sea ecosystem and offers further understanding of those features regulating biological processes in this unique marine basin.Материал Аккумулирование природного радиоэлемента полония зоопланктонными организмами Черного моря(2003) Лазоренко, Г. Е.; Поликарпов, Г. Г.; Романова, З. А.; Кидейс, А.Материал Воздействие глобальных климатических и региональных факторов на мелких пелагических рыб Чёрного моря(2007) Шульман, Г. Е.; Никольский, В. Н.; Юнева, Т. В.; Щепкина, А. М.; Бат, Л.; Кидейш, А. Е.Рассмотрена многолетняя динамика содержания жира у шпрота и анчоуса Чёрного моря как индикаторов обеспеченности пищей в связи с температурой воды, концентрацией фитопланктона, величинами запасов и уловов этих рыб. Глобальным климатическим фактором, оказывающим прямое и косвенное влияние на обеспеченность мелких пелагических рыб Чёрного моря пищей, является температура. Региональные факторы, воздействующие на состояние шпрота и анчоуса, – пищевая конкуренция, речной сток и загрязнение водной среды.Материал О связи между содержанием липидов у черноморского калянуса Calanus euxinus и динамической активностью водной среды его обитания(1999) Юнева, Т. В.; Юнев, О. А.; Бингел, Ф.; Кидейс, А. Э.; Шульман, Г. Е.