Tarasova, N.G., O.V. Mukhortova, S.V. Bykova, A.S. Semenov, Ya.V. Stroynov & I.S. Mikryakova. (2025). Chuzherodnyye vidy v planktonnom soobshchestve Volgo-Donskogo sudokhodnogo kanala. [Alien Species in the Plankton Community of the Volga-Don Shipping Canal. ]. Biologiya Vnutrennikh Vod/ Inland Water Biology. 18(1):90-104. [In Russian; English abstract].
Chuzherodnyye vidy v planktonnom soobshchestve Volgo-Donskogo sudokhodnogo kanala. [Alien Species in the Plankton Community of the Volga-Don Shipping Canal. ]
Biologiya Vnutrennikh Vod/ Inland Water Biology
18(1):90-104. [In Russian; English abstract]
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In August 2023, a study of the plankton community of the sluice chambers of the Volga-Don shipping Canal named after V.I. Lenin and adjacent territories (the Volga River near Volgograd, between the locks and in the Tsimlyansk reservoir near Kalach-on-Don) was conducted. Alien species from various biogeographic complexes have been recorded in all its components (phyto-, proto- and metazooplankton). Skeletonema subsalsum (A. Cleve) Bethge, 1928 as part of the phytoplankton is from the Ponto-Caspian complex. The marine species Leprotintinnus pellucides (Cleve, 1899) is included as part of the ciliates. 9 species from various biogeographic complexes were found in zooplankton, namely: Heterocope caspia Sars G.O., 1897, Eurytemora caspica Sukhikh & Alekseev, 2013, Cercopagis (Cercopagis) pengoi (Ostroumov, 1891) from Ponto-Caspian; Cornigerius maeoticus (Pengo, 1879) from Ponto-Azov; Calanipeda aquaedulcis Krichagin, 1873 from the Mediterranean; Thermocyclops taihokuensis, Harada, 1931 from the East Asian; American Acanthocyclops americanus (Marsh, 1893) and Moina cf. micrura Kurz, 1875 with uncertain status. It has been established that, despite the intensive mixing of water in the sluice chambers, alien species are actively developing and entering the rank of dominant ones. The proportion of dead Copepoda individuals in sluice chambers is lower than that of Cladocera. However, the abundance of Cladocera is so large that even with high mortality, they are part of the dominant complex of species, while some zooplankter individuals were in an active reproductive state. Significant abiotic factors for alien species in the the Volga-Don shipping Canal were electrical conductivity (for Heterocope caspia, Moina cf. micrura and Acanthocyclops americanus) and temperature (for Skeletonema subsalsum). For crustaceans consuming detritus, bacteria, algae, ciliates and other zooplankters, reliable correlations with the listed food resources were noted.
