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Gut residence time in pelagic crustaceans

journal contribution
posted on 2023-05-16, 21:28 authored by Ritz, DA
Gut residence time (GRT) is often reported to be extremely variable among crustaceans. In this study, GRT was measured in tethered mysids that were fed continuously, and appearance of the first faecal pellet was found to be quite consistent averaging 1.6 h. There was no significant difference between GRT in those mysids held singly and those accompanied by free-swimming conspecifics, even though previous studies have shown metabolic benefits in social behaviour. Gut residence time data from a range of pelagic crustaceans feeding continuously showed a clear linear relationship with size. It appears that, when feeding ceases and crustaceans are allowed to clear their guts in filtered water, GRT can be very long and variable. However, when feeding is continuous, GRT can be relatively short and consistent. © 2008 Marine Biological Association in the United Kingdom.

History

Publication title

Marine Biological Association of the United Kingdom

Volume

88

Pagination

65-67

ISSN

0025-3154

Department/School

School of Natural Sciences

Publisher

Cambridge University Press

Place of publication

United Kingdom

Repository Status

  • Restricted

Socio-economic Objectives

Expanding knowledge in the environmental sciences

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