Morphometric characteristics of spiny-cheek crayfish Faxonius limosus (Rafinesque, 1817) from the Danube River on the territory of Serbia

被引:0
|
作者
Roljic, Rajko L. [1 ]
Nikolic, Vera P. [1 ,2 ]
Dikanovic, Vesna D. [3 ]
Zoric, Katarina S. [3 ]
Urosevic, Aleksandar M. [4 ]
Markovic, Vanja M. [2 ]
机构
[1] Univ Banja Luka, Fac Nat Sci & Math, Dept Biol, Mladena Stojanovica 2, Banja Luka 78000, Bosnia & Herceg
[2] Univ Belgrade, Fac Biol, Studentski Trg 16, Belgrade 11000, Serbia
[3] Univ Belgrade, Inst Biol Res Sinisa Stankovic, Natl Inst Republ Serbia, Dept Hydroecol & Water Protect, Bulevar Despota Stefana 142, Belgrade 11108, Serbia
[4] Univ Belgrade, Inst Biol Res Sinisa Stankovic, Natl Inst Republ Serbia, Dept Evolutionary Biol, Bulevar Despota Stefana 142, Belgrade 11108, Serbia
关键词
non -native crayfish; morphometric variation; body condition; Danube; AUSTROPOTAMOBIUS-TORRENTIUM; DECAPODA CAMBARIDAE; A-PALLIPES; ASTACUS; GROWTH;
D O I
10.2298/ABS231212005R
中图分类号
Q [生物科学];
学科分类号
07 ; 0710 ; 09 ;
摘要
Twenty-three morphometric characteristics of spiny-cheek crayfish Faxonus limosus from Danube, Serbia, were analyzed to describe the general body shape. Forty-eight specimens were caught in May 2022 and January 2023 and measured for morphometric variation. Also, the values of two crayfish condition indices, Fulton's condition factor (FCF) and crayfish constant (CC), were determined. Most of the analyzed characteristics were moderately variable (CV 10-30%). Principal component analysis (PCA) was applied to the morphological measurements. All the variables make similar contributions to the variance of the first principal component. The highest contributions are from variables CEF and ARL. ARW, CPH, ABH, CPW, and ROW significantly contributed to the second principal component variance. The population of spiny-cheek crayfish at the investigated site has a relatively stable age structure.
引用
收藏
页码:91 / 101
页数:11
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