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Evaluation of passive integrated transponder (PIT) tags in studies of sea urchins: Caution advised


Lauzon-Guay, J and Scheibling, RE, Evaluation of passive integrated transponder (PIT) tags in studies of sea urchins: Caution advised, Aquatic Biology, 2, (2) pp. 105-112. ISSN 1864-7790 (2008) [Refereed Article]

DOI: doi:10.3354/ab00040


We evaluated the effect of passive integrated transponder (PIT) tags on feeding, growth, movement and survival of the sea urchin Strongylocentrotus droebachiensis in field and laboratory experiments. In cages supplied with kelp, 80% of urchins (n = 74) retained their tag during an 80 d field experiment. At the end of the experiment, tagged individuals had a lower growth rate (by 42%), lower gonad index (by 23%), lower survival rate (by 30%), and took longer to right themselves (by 30%) than untagged control urchins. In a 24 h feeding experiment in the field, the consumption rate of kelp was lower for tagged urchins (by 67%) than for untagged controls. In release and recapture experiments in the field, tagged urchins moved shorter distances over 2.5 h (by 30%) than controls. Although PIT tagging had a detrimental effect on all measures of sea urchin performance, activity and survival in the field, there was no detectable effect of PIT tagging on urchin feeding rate or survival in a 10 wk laboratory experiment. Our results suggest that natural stressors, such as wave action, may limit the utility of PIT tags in field studies of urchins. © Inter-Research 2008.

Item Details

Item Type:Refereed Article
Research Division:Biological Sciences
Research Group:Ecology
Research Field:Marine and estuarine ecology (incl. marine ichthyology)
Objective Division:Expanding Knowledge
Objective Group:Expanding knowledge
Objective Field:Expanding knowledge in the biological sciences
UTAS Author:Lauzon-Guay, J (Dr Jean-Sebastien Lauzon-Guay)
ID Code:55498
Year Published:2008
Web of Science® Times Cited:19
Deposited By:Zoology
Deposited On:2009-03-11
Last Modified:2011-09-21

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