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Turkish Journal of Fisheries and Aquatic Sciences 2012, Vol 12, Num, 5     (Pages: 479-484)

Bioluminescence Characteristics Changeability of Ctenophore Beroe ovata Mayer, 1912 (Beroida) in Ontogenesis

Yuri Tokarev 1 ,Olga Mashukova 1 ,Elena Sibirtsova 1

1 Kovalevsky Institute of Biology of the Southern Seas (IBSS) of the National Academy of Sciences of Ukraine, Sevastopol, 99011, Nakhimov Av., 2, Ukraine DOI : 10.4194/1303-2712-v12_2_39 Viewed : 4110 - Downloaded : 3509 The changes of the biophysical characteristics of light-emission in ontogenesis of ctenophore Beroe ovata Mayer, 1912 – recent introducer to the Black Sea has been researched. It is established, that bioluminescent amplitude of larvae was eight times higher, and energy of light-emission seven times more, than similar parameters of the bioluminescence in eggs of ctenophores. Amplitude and energy of light-emission of quite recently caught ctenophore (in control) were some orders more than similar parameters in ctenophores after spawning.

The maximum bioluminescent amplitude values were observed in the group of ctenophores with eggs-laying. It was registered a significant increase of light-emission characteristics of ctenophores with increasing body. Substantiated conclusion, that distinctions in the bioluminescence parameters of ctenophores in ontogenesis can be caused by ontogenetic features of their biochemical structure and quantity involved in bioluminescent reaction photocytes. Keywords : Light-emission parameters, Beroe ovata, life cycles, Black Sea