Numerical Classification of Sharp-beaked Redfishes, Sebastes mentella and S. fasciatus, from Northeastern Grand Bank

Publisher Website
Google Scholar
Abstract
The distinction between S. fasciatus and S. mentella had not previously been clearly established, as good morphological discriminators had not been isolated. Eleven meristic and 14 morphological characters were examined individually (univariate statistics) and collectively (discriminant analysis) on 200 sharp-beaked redfish specimens representing both S. fasciatus and S. mentella which had been separated by the anatomical character of extrinsic gasbladder musculature. The result of the discriminant analysis demonstrated good (100%) separation of redifsh with combinations of meristic and morphological characters. Anal fin rays, relative position of pectoral and pelvic fin to anus, number of the 1st left gill rakers, angle of the 3rd preopercular spine, the fusion of the occipital-nuchal ridge and vertebral number were good discriminators between S. mentella and S. fasciatus.

This publication has 0 references indexed in Scilit: