black sea red data book - Department of Biology

Population trends. Sharp decline in population numbers since the late 1970s. The
reduction estimate of 50-70% over the last 10 years is based on direct observations.
Threats. Pollution of the surface microlayer of water, bottom hypoxia and
disappearance of Cystoseira barbata belts from the north-western coast of the Black
Sea.
Conservation measures taken. Included in the Red Data Book of Ukraine (1994), in
the Data Deficient (DD) category.
Conservation measures proposed. Include in Black Sea Red Data Book. Reduce
Black Sea eutrophication.
References
Smirnov, A. I., 1994. Callionymus belenus Risso. Chervona Kniga Ukrayni (Red
Data Book of Ukraine): 280 pp. (in Ukrainian).
Svetovidov, A. N., Ryby Chernogo morya (Fishes of the BlackSea).
Nauka, Moscow-Leningrad: 551 pp. (in Russian).
Zaitsev, Y. P., 1971. Marine Neustonology. Jerusalem, Israel Program for
Scientific Translations: 207 pp.
Zaitsev, Y. P., 1993. Impact of Eutrophication on the Black Sea Fauna. Studies and
Reviews 64 : 59-86.
Compiled by Y. Zaitsev
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