Abstract
The ichthyofauna of the narrow coastal zone of southwest Crimea in 2003–2004 was represented by 79 fish species belonging to 36 families. The structure of the species composition of eggs, larvae, and adult fish in these years indicated to its restoration in comparison with the late 1980s to early 1990s. The abundance of commercial fish increased: Engraulis encrasicolus ponticus, Trachurus mediterraneus ponticus, and Mullus barbatus ponticus. The quantity of migratory fish increased: Pomatomus saltatrix and Sarda sarda. The presence in winter catches of Trachurus mediterraneus ponticus and Pomatomus saltatrix indicated favorable conditions for their wintering off South Crimea. Appearance in catches of the fish of elder age groups is evidence of the restoration of their age structure. The competitor for food Mnemiopsis leydyi still influences the food resources of the fish and, thus, their survival. If they appear in plankton simultaneously, the abundance of larvae drastically decreases. The obtained data indicate to the vulnerability of coastal biocenoses to anthropogenous impact and to the necessity of monitoring of fish resources and of their protection.
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Original Russian Text © L.P. Salekhova, A.D. Gordina, T.N. Klimova, 2007, published in Voprosy Ikhtiologii, 2007, Vol. 47, No. 2, pp. 173–187.
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Salekhova, L.P., Gordina, A.D. & Klimova, T.N. The ichthyofauna of coastal waters southwest of Crimea in 2003–2004. J. Ichthyol. 47, 140–153 (2007). https://doi.org/10.1134/S0032945207020026
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DOI: https://doi.org/10.1134/S0032945207020026