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An Indigenous Species, Dreissena polymorpha (Pallas, 1771) (Mollusca, Bivalvia), as an Invader in Lake Büyük Akgöl

Author:
Arslan, Naime, Kökmen-Aras, Seval, Mercan, Deniz
Source:
Transylvanian review of systematical and ecological research 2018 v.20 no.2 pp. 39-50
ISSN:
2344-3219
Subject:
Ceratopogonidae, Chaoboridae, Chironomidae, Dreissena polymorpha, Ephemeroptera, Gastropoda, Hirudinea, Odonata, Oligochaeta, Trichoptera, fauna, habitats, indigenous species, lakes, macroinvertebrates
Abstract:
The relative abundance of D. polymorpha and other benthic macroinvertebrates in lake Büyük Akgöl was studied in 2009, 2012 and 2014. In 2009, the macroinvertebrate fauna consisted of Gastropoda (53.4%), Bivalvia (26.8%), Oligochaeta (12.6%), Chironomidae (5.9%) and other taxonomic groups (Trichoptera, Ceratopogonidae, Ephemeroptera, Odonata, Chaoboridae, and Hirudinea) (1.04%). After three years, Bivalvia and Oligochaeta increased (38.2% and 15.3%, respectively), whereas the other groups (in particular, Gastropoda and Chironomidae) were found to decrease (41.4% and 4.5%, respectively). For the study period, the relative abundance of D. polymorpha increased from 19.6% (2009) to 34.8% (2014). The species has occupied various benthic habitats of lake Büyük Akgöl and continued to spread during the study period.
Agid:
5969073