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标题：Comparison of common carp ( Cyprinus carpio ) age estimates derived from dorsal fin spines and pectoral fin rays
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作者：Michael J. Weber ; Michael L. Brown
期刊名称：Journal of Freshwater Ecology
印刷版ISSN：0270-5060
电子版ISSN：2156-6941
出版年度：2011
卷号：26
期号：2
页码：195-202
DOI：10.1080/02705060.2011.554218
出版社：Taylor & Francis
摘要：Abstract Understanding population dynamics of invasive species is critical for formulating effective management plans but dependent upon the reliability of age estimations. We compared age estimates derived from dorsal fin spines and pectoral fin rays from common carp (Cyprinus carpio), a widespread invasive species that imposes deleterious ecosystem effects. Age estimates derived from each structure were highly correlated with one another. Percentage agreement (PA) was higher (57.9%) and coefficient of variation (CV) was lower (6.6%) initially for dorsal fin spines compared to pectoral fin rays (43.5%, 9.9%, respectively), but both structures had high PA ( 95%) and low CV (0.3%) following a joint examination. Thus, both dorsal fin spines and pectoral fin rays provide similar age estimates of common carp and can be used to understand population dynamics of this species.
关键词：common carp; aging; age comparision; dorsal spine; pectoral ray