Sexual dimorphism in the head, mouth, and body morphology of the smallspotted catshark, Scyliorhinus canicula Linnaeus, 1758 Chondrichthyes: Scyliorhinidae from TurkeyReport as inadecuate




Sexual dimorphism in the head, mouth, and body morphology of the smallspotted catshark, Scyliorhinus canicula Linnaeus, 1758 Chondrichthyes: Scyliorhinidae from Turkey - Download this document for free, or read online. Document in PDF available to download.

Acta Adriatica : international journal of Marine Sciences, Vol.47 No.1 June 2006. -

Males of the smallspotted catshark, Scyliorhinus canicula, have a longer and narrower mouth than females, resulting in pronounced sexual dimorphism. The length-width ratio of the mouth is

0.55 in males and 0.50 in females. Other head measurements also significantly differ between the sexes, i.e., the snout-spiracle and snout-pectoral distances. Body measurements that differ between the sexes include pelvic to anal, pectoral inner edge, pelvic to median tip, upper caudal, and total body lengths. Reasons for these differences are discussed.

Scyliorhinus canicula; Elasmobranchii; sexual dimorphism; meristic; nanism



Author: Halit F0L0Z - Ertan TAŞKAVAK -

Source: http://hrcak.srce.hr/



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