문치가자미, Pleuronectes yokohamae와 도다리, Pleuronichthys cornutus의 계측형질 비교

Abstract

A closely associated set of characteristics was analyzed to discriminate between the morphologically similar marbled sole, Pleuronectes yokohamae and fine-spotted flounder, Pleuronichthys cornutus. With the arc sin square root transformation, 19 measurements relative to the standard length and another 18 measurements relative to the head length of each species of Pleuronectidae were compared statistically. One classical and 2 truss dimensions of each 19 morphometric trait for the marbled sole showed higher values than those of fine-spotted flounder respectively (p < 0.05). Two classical and 5 truss dimensions of each 19 morphometric trait for the fine-spotted flounder showed higher values than those of marbled sole respectively (p < 0.05). In the head part dimension of the two species, the pectoral fin length and the pelvic fin length of marbled sole were longer than those of fine-spotted flounder, while the eye diameter and the distance between the pectoral fins of fine-spotted flounder were longer than those of marbled sole. According to the above results of this study, we can reach a conclusion that the two species of Pleuronectidae can be adequately distinguished with the external shape of their body. We hope that these results of this study could serve as a taxonomical parameter in identifying Pleuronectidae family.