Models for comparing average first-year growth in length of freshwater fish |
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Authors: | J KUBECKA |
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Institution: | Hydrobiological Institute, Czech Academy of Sciences, Ceske Budejovice, Czech Republic |
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Abstract: | Abstract Logistic curves of the average growth in length were elaborated for young-of-the-year perch, Perca fluviatilis L., zander. Stizostedion lucioperca (L.), ruffe, Gymnocephalus cernua (L.), bream, Abramis brama (L.), and roach, Rutilus rutilus (L.), using data from 62 localities. Mean relative deviation from this average growth (MRDAG) is proposed as a simple and reliable indicator of growth rate. The MRDAG for perch, zander, bream and roach showed a significant negative linear relationship with the geographical latitude. |
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Keywords: | Abramis fish fry geographical variability growth Gymnocephalus Perca Rutilus Stizostedion |
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