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Food Spectrum of the Australian Redclaw Crayfish Cherax quadricarinatus (Von Martens, 1868) (Decapoda, Parastacidae) in the Ponds of Astrakhan Oblastстатья
- Авторы: Vorob'eva L.V., Borisov R.R., Kovacheva N.P., Pyatikopova O.V.
- Журнал: Russian Journal of Biological Invasions
- Том: 15
- Номер: 2
- Год издания: 2024
- Первая страница: 146
- Последняя страница: 157
- DOI: 10.1134/S2075111724700024
- Аннотация: For the first time, the data on the feeding habits of the Australian red claw crayfish Cherax quadricarinatusin water bodies of Russia are presented. The studies were carried out during the cultivation of crayfishin three ponds of the scientific and experimental complex of aquaculture BIOS of the Volga-Caspianbranch of the Russian Federal Research Institute of Fisheries and Oceanography (VNIRO) in Astrakhanoblast in 2022. The food spectrum of C. quadricarinatus was dominated by plant remains and detritus (mainlyrotting parts of cane), they were noted in all stomachs with food, and their share in the virtual food bolus constituted82.4% on average. The share of the animal component in the virtual food bolus was 12.8% on average,and it was represented mainly by macrobenthos. Planktonic crustaceans did not make up a significant proportionin the virtual food bolus. In total, 20 taxa of invertebrates were found in stomachs. Among the benthicspecies, larvae of Odonata, chironomids, and larvae and imagoes of Coleoptera predominated. A preliminaryassessment of the possible impact of crayfish Cherax quadricarinatus on ecosystems when it penetrates intonatural water bodies of the South of Russia has been carried out.
- Добавил в систему: Воробьева Лада Владиславовна