. Biology of the seas of the Marine biology -- Soviet Union; Hydrology -- Soviet Union. months E M (fi E w. Ш а Ð Ð Ñ S. V S Ш i HI С EJ I Ш YEARS /93 7 /947 f943 /949 \/ ШШ2 СÐз G34 CZ35 5ZD7 E3<5 888Ñ E^/i? Fig. 233. Alterations of biomass of certain zooplankton species of the Sea of Azov proper: 1 Copepoda; 2 Rotatoria; 3 Tintinnoidea; 4 Mollusc larvae; 5 Cirripedia; 6 Cladocera; 7 Hydrozoa larvae; 8 Polychaeta larvae; 9 Mysidacea; 10 Others (Okul, 1941). Copepoda development is even greater than in the open part of the Sea of Azov (on the average 70 per cent of all the
. Biology of the seas of the Marine biology -- Soviet Union; Hydrology -- Soviet Union. months E M (fi E w. Ш а Ð Ð Ñ S. V S Ш i HI С EJ I Ш YEARS /93 7 /947 f943 /949 \/ ШШ2 СÐз G34 CZ35 5ZD7 E3<5 888Ñ E^/i? Fig. 233. Alterations of biomass of certain zooplankton species of the Sea of Azov proper: 1 Copepoda; 2 Rotatoria; 3 Tintinnoidea; 4 Mollusc larvae; 5 Cirripedia; 6 Cladocera; 7 Hydrozoa larvae; 8 Polychaeta larvae; 9 Mysidacea; 10 Others (Okul, 1941). Copepoda development is even greater than in the open part of the Sea of Azov (on the average 70 per cent of all the zooplankton biomass; in fact 1,500 mg/m3, chiefly consisting of Calanipeda aquae dulcis). The relict form Heterocope caspia is very characteristic of the Gulf of Taganrog; there is a considerable admixture of fresh-water species in the most eastern part of the Gulf. Cirripedia larvae play a substantial part in the Sea of Azov in June; 42 per cent of zooplankton biomass consists of them, they yield up to 270 mg/m3. Their numbers are much smaller in the Gulf of Taganrog. Among the other groups which go to form the Sea of Azov zooplankton, that of the marine Infusoria Tintinnoidea should be mentioned first; in spite of its minute size, it gives a mean annual biomass of 39 mg/m3 (9-6 per cent of the total zooplankton). During the period of its greatest development, in SEA OF AZOV GULF OF TAGANROG too- 90- 80- 70- 60- so- но- во- го- to â о â. II III IV m VIII IX X XI XII. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Zenkevich, L. A. (Lev Aleksandrovich), 1889-1970. New York, Interscience Publishers
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