Invasive Carassius carp in Georgia: Current state of knowledge and future perspectives |
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作者单位: | [1]Institute of Zoology, Ilia State University, Kakutsa Cholokashvili st. 3/4, 0162 Tbilisi, Georgia [2]Institute of Ecology, Ilia State University, Kakutsa Cholokashvili st. 3/4, 0162 Tbilisi, Georgia and Invertebrate Research Centre (IRC), Tbilisi, Georgia. Agladze st. 26, 0119 [3]Suleyman Demirel University, Egirdir Fisheries Faculty, 32500, Egirdir, Isparta, Turkey |
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摘 要: | In Georgia, crucian carp Carassius carassius (Linnaeus, 1758) was known from only one locality after Kessler's record (1877-1878) with no new findings until 1985. Since then C. carassius rapidly and simultaneously invaded almost all water bodies of Georgia. In 2004, it was for the first time noted that this invasive Carassius sp. could not be a C. Carassius, but was a form of Carassius gibelio (Bloch, 1792). However no further data is available about this invasive species in Georgia. The aim of the present study was to investigate taxonomic status of Carassius sp. in Georgia using mtDNA phylogenetic analyses and mor- phometrie study of truss network system. Genetic analysis revealed that invasive Carassius sp. is closely related to the C. gibelio from Turkey and other countries. In contrast, morphometrically Carassius sp. from Georgia can be easily differentiated from those of Turkey indicating high intraspecific variability. This is the first time discussion on the current knowledge of the present distribution of invasive carp in Georgia with identifying current problems and future research directions needed.
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关 键 词: | 格鲁吉亚 侵入性 鲫鱼 鲤鱼 知识 外来物种入侵 系统发育分析 mtDNA |
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