Growth and gut morphology of the lobster Nephrops norvegicus

Welden, N. A., Taylor, A. C. and Cowie, P. R. (2015) Growth and gut morphology of the lobster Nephrops norvegicus. Journal of Crustacean Biology, 35(1), pp. 20-25. (doi: 10.1163/1937240X-00002298)

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Abstract

Nephrops norvegicus (Linnaeus, 1758) is a decapod crustacean of high economic importance found across the northeast Atlantic. Little is currently known about the variation in stomach morphology with body size. In this study, a novel two-stage endocasting technique was used to determine stomach volume in relation to carapace length. Scanning electron microscope images of the teeth of the gastric mill were analysed to determine the changes in gastric mill size and structure with growth. Correlation analysis revealed strong positive relationships between both carapace length and stomach volume, and the size of the gastric mill. These changes are thought to facilitate an increase in size and range of prey species.

Item Type:Articles
Additional Information:This project was funded by the Sheina Marshall Scholarship, and carried out at the University Marine Biological Station, Millport.
Status:Published
Refereed:Yes
Glasgow Author(s) Enlighten ID:Taylor, Professor Alan and Welden, Dr Natalie and Cowie, Dr Phillip
Authors: Welden, N. A., Taylor, A. C., and Cowie, P. R.
College/School:College of Medical Veterinary and Life Sciences
College of Medical Veterinary and Life Sciences > Institute of Biodiversity Animal Health and Comparative Medicine
Journal Name:Journal of Crustacean Biology
Publisher:Brill
ISSN:0278-0372
ISSN (Online):1937-240X

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