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Article

The First Record of Non-Indigenous Cladoceran Evadne nordmanni Lovén, 1836 (Cladocera, Podonidae) in the Middle Part of the Caspian Sea

1
Institute of Zoology, Almaty 050060, Kazakhstan
2
Fisheries Research and Production Center, Almaty 050016, Kazakhstan
*
Author to whom correspondence should be addressed.
Academic Editor: Jun Yang
Water 2022, 14(18), 2818; https://doi.org/10.3390/w14182818
Received: 4 August 2022 / Revised: 4 September 2022 / Accepted: 8 September 2022 / Published: 10 September 2022
(This article belongs to the Special Issue Biological Invasions in the Marine Environment)
The introduction and spread of non-indigenous species may have ecological, environmental and economic impacts where they invade. This work aims to study the morphological characteristics, the quantitative variables, the possibility of coexistence with other native species and the pathways of introduction of non-indigenous cladoceran Evadne nordmanni (Lovén, 1836) in the middle part of the Caspian Sea. Ballast water is a possible vector for the introduction of cladoceran Evadne nordmanni into the Caspian Sea. The abundance of Evadne nordmanni in all surveyed areas reached an average of 799 individuals/m3. Its biomass was 257.58 mg/m3. Evadne nordmanni significantly contributes to the abundance and biomass of zooplankton in the Middle Caspian Sea. The proportion of the dominant calanoida Acartia tonsa decreased from 71–90% to 40% with the appearance of Evadne nordmanni. Further investigations are needed to analyze the responsible route of Evadne nordmanni introduction to the Caspian Sea and its consequences on biodiversity; since this species is a predator and could have consequences on the feeding conditions of planktivorous fish in the Caspian Sea. View Full-Text
Keywords: non-indigenous species; native species; interspecific competition; coexistence; forage base; ballast water; zooplankton non-indigenous species; native species; interspecific competition; coexistence; forage base; ballast water; zooplankton
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MDPI and ACS Style

Aubakirova, M.; Krupa, E.; Magda, I.; Assylbekova, S.Z.; Abayev, A.; Abilov, B.; Tumenov, A.; Isbekov, K.B.; Mazhibayeva, Z. The First Record of Non-Indigenous Cladoceran Evadne nordmanni Lovén, 1836 (Cladocera, Podonidae) in the Middle Part of the Caspian Sea. Water 2022, 14, 2818. https://doi.org/10.3390/w14182818

AMA Style

Aubakirova M, Krupa E, Magda I, Assylbekova SZ, Abayev A, Abilov B, Tumenov A, Isbekov KB, Mazhibayeva Z. The First Record of Non-Indigenous Cladoceran Evadne nordmanni Lovén, 1836 (Cladocera, Podonidae) in the Middle Part of the Caspian Sea. Water. 2022; 14(18):2818. https://doi.org/10.3390/w14182818

Chicago/Turabian Style

Aubakirova, Moldir, Elena Krupa, Igor Magda, Saule Zh. Assylbekova, Almat Abayev, Berdibek Abilov, Artur Tumenov, Kuanysh B. Isbekov, and Zhanara Mazhibayeva. 2022. "The First Record of Non-Indigenous Cladoceran Evadne nordmanni Lovén, 1836 (Cladocera, Podonidae) in the Middle Part of the Caspian Sea" Water 14, no. 18: 2818. https://doi.org/10.3390/w14182818

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