Please use this identifier to cite or link to this item: http://hdl.handle.net/1893/23144
Appears in Collections:Aquaculture Journal Articles
Peer Review Status: Refereed
Title: Seasonal nutritional status in Norway lobsters, Nephrops norvegicus (L.): Are females nutritionally compromised over the winter?
Authors: Watts, Andrew J R
Albalat, Amaya
Smith, Ian P
Atkinson, Robert J A
Neil, Douglas M
Contact Email: amaya.albalat@stir.ac.uk
Keywords: Nephrops norvegicus
Norway lobster
nutritional state
starvation
brooding
Issue Date: 2016
Publisher: Taylor and Francis
Citation: Watts AJR, Albalat A, Smith IP, Atkinson RJA & Neil DM (2016) Seasonal nutritional status in Norway lobsters, Nephrops norvegicus (L.): Are females nutritionally compromised over the winter?, Marine Biology Research, 12 (6), pp. 563-572.
Abstract: Norway lobsters, Nephrops norvegicus, are sediment-dwelling decapod crustaceans that excavate burrows from which they make short excursions to feed by predation and scavenging. The females of this species are known to reside within their burrows for an extended period of time over the winter while brooding their eggs. The aim of this study was to assess the likelihood of these females being able to feed during this brooding period. Biophysical and biochemical measurements that had previously been shown to change with starvation under laboratory conditions in male N. norvegicus were taken for female N. norvegicus under similar conditions. These measurements were also compared in both sexes obtained from monthly trawl samples from the Clyde Sea Area, Scotland, UK, together with trawl composition data. The laboratory study showed that the hepatosomatic index, and the copper, lipid and water content of the hepatopancreas can be used as indicators of the state of starvation in females, as in males. In the wild, both sexes have reduced nutritional status during the winter, but not to the degree seen in animals starved for 20 weeks in aquarium trials. This study does not support the hypothesis that females cease feeding over winter, during their brooding period. Firstly, some females were unable to sustain ovary development during starvation under controlled conditions, contrary to field observations. Secondly, field data suggests that there is no sex-specific reduction in nutritional status.
Type: Journal Article
URI: http://hdl.handle.net/1893/23144
DOI Link: http://dx.doi.org/10.1080/17451000.2016.1174337
Rights: This item has been embargoed for a period. During the embargo please use the Request a Copy feature at the foot of the Repository record to request a copy directly from the author. You can only request a copy if you wish to use this work for your own research or private study. This is an Accepted Manuscript of an article published by Taylor & Francis Group in Marine Biology Research on [date of publication], available online: http://www.tandfonline.com/[Article DOI].
Affiliation: University of Glasgow
Complex Systems
University of Aberdeen
University of Glasgow
University of Glasgow

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