Increased drag reduces growth of snails:comparison of flume and in situ experiments.

Wahl, Martin (1997) Increased drag reduces growth of snails:comparison of flume and in situ experiments. Marine Ecology Progress Series, 151 . pp. 291-293. DOI 10.3354/meps151291.

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Abstract

Snails Littorina littorea with and without artificial epibionts were exposed in situ for nearly 1 mo. Measurement of individual shell length increase over this period revealed that clean snails grew 3 times faster than fouled snails. These results compare well with previously conducted flume experiments (Wahl 1996). This epibiosis effect is thought to be due to increased drag-the only feature distinguishing the 2 treatment groups-caused by the presence of epibionts on the shell. Increased drag probably entails higher energy expenditure for pedal activities (attachment and locomotion) and a reduced allocation of resources towards growth and, possibly, reproduction

Document Type: Article
Keywords: Littorina littorea · Drag · Simulated epibiosis · Growth rates · In situ experiments · Energetic trade-offs
Research affiliation: Kiel University
Refereed: Yes
Open Access Journal?: No
DOI etc.: 10.3354/meps151291
ISSN: 0171-8630
Date Deposited: 23 Jan 2014 15:01
Last Modified: 04 Jul 2016 12:51
URI: http://oceanrep.geomar.de/id/eprint/23200

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