engleski

Morphological variation among four strains of common carp Cyprinus carpio in Croatia

Variation in morphology among four strains of common carp in Croatia (436 specimens) was expressed using variance (ANOVA) and cluster analyses. Three sets of data were compared: truss network, traditional plastic and meristic data. The results of cluster analyses were very similar for all three data sets and were supported by ANOVA of plastic and meristic characters. The strains differ significantly (ANOVA, P<0.05) in up to 6 plastic and one meristic characters from all the others. It appears that there are still some distinctive strains (one of them being from Našice farm), but also that the lost of identity exists, probably due to uncontrolled crossbreeding and insufficient selection work. Furthermore, these results confirm the usefulness of the three morphologic methods in ichthyological research, as they all gave the similar results in differentiating the strains.

morphological traits; strains; plastic characters; meristic characters; truss network.

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