Fig. 4 in Tuerkayana rotundum

Fig. 4. Aral Sea Fauna. Important native and introduced species in the Aral Sea fauna. Mesocyclops leuckarti and Arctodiaptomus salinus were important members of the zooplankton, but the latter was replaced by the introduced Calanipeda aquaedulcis. In the benthos Dikerogammarus aralensis was displaced by the introduced shrimp Palaemon elegans. Bivalves of the genus Adacna, Cerastoderma and the introduced species Abra segmentum were important food for fish. The same is true for the introduced polychaete Hediste diversicolor. The fish depicted were all valuable commercial fisheries. Chironomid larvae and pupae were important food items for fish. The Aral Sea Trout and the Aral Sea Sturgeon have both gone extinct. Further details in text.