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Reproduction characteristics and growth rate of ctenophore Beroe ovata larvae in the Caspian and Black sea waters IBSS Repository
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...
Tipo: Journal Contribution
Ano: 2011 URL: http://repository.ibss.org.ua/dspace/handle/99011/2217
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Neritization of the plankton fauna in the Mediterranean basin IBSS Repository
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...
Tipo: Journal Contribution Palavras-chave: Zooplankton; Oceanic; Neritic-oceanic; Neritic and narrow-neritic species; Neritization; Зоопланктон; Океанические; Неритическо-океанические; Неритические; Узко-неритические виды; Неритизация Zooplankton Neritic province Zooplankton http://aims.fao.org/aos/agrovoc/c_15490.
Ano: 2006 URL: http://repository.ibss.org.ua/dspace/handle/99011/263
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