Recent studies on the crawfish Palinurus elephas in South Wales and Cornwall

E Hunter, SE Shackley, DB Bennett

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21 Citations (Scopus)

Abstract

From May 1993 until January 1994, 788 male and 1604 female crawfish, Palinurus elephas in total, were examined from the South Wales and Cornish fisheries. Mean carapace length (CL) of Cornish crawfish was 125.6 mm for males, 132.4 mm for females and 135.0 mm for berried females, while mean CL for Welsh crawfish was 155.8 mm for males, 138.7 mm for females and 138.6 mm for berried females. The overall size distribution of male Welsh crawfish differed significantly from that observed in the Cornish population. An analysis of variance gave significant (P<0.05) differences for the factors; Site, Sex and the Sex/Site and Month/Sex interactions. Male crawfish reached greater overall size than female crawfish, but for specimens of equal CL, total lengths (TL) of females were longer than those of males. Males were heavier than females of equal CL or TL.
Original languageEnglish
Pages (from-to)963-983
Number of pages21
JournalJournal of the Marine Biological Association of the United Kingdom
Volume76
Issue number04
DOIs
Publication statusPublished - Nov 1996

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