Document Detail

Host location in flow by larvae of the symbiotic barnacle Trevathana dentata using odour-gated rheotaxis.
MedLine Citation:
PMID:  15306296     Owner:  NLM     Status:  MEDLINE    
The detection and location of specific organisms in the aquatic environment, whether they are mates, prey or settlement sites, are two of the most important challenges facing aquatic animals. Large marine invertebrates such as lobsters have been found to locate specific organisms by navigating in the plume of chemicals emitted by the target. However, active plume tracking in flow by small organisms such as marine larvae has received little scientific attention. Here, we present results from a study examining host location in flow by nauplius larvae of the barnacle Trevathana dentata, which inhabits the stony reef coral Cyphastrea chalcidicum. The experiments included analysis of larval motion in an annular flume under four conditions: (i) still water, (ii) in flow, (iii) in still water with waterborne host metabolites and (iv) in flow with host metabolites. Our results show that T. dentata nauplii are unable to locate their target organism in still water using chemotaxis, but are capable of efficient host location in flow using odour-gated rheotaxis. This technique may enable host location by earlier, less-developed larval stages.
Zohar Pasternak; Bernd Blasius; Yair Achituv; Avigdor Abelson
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Publication Detail:
Type:  Comparative Study; Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  Proceedings. Biological sciences / The Royal Society     Volume:  271     ISSN:  0962-8452     ISO Abbreviation:  Proc. Biol. Sci.     Publication Date:  2004 Aug 
Date Detail:
Created Date:  2004-08-12     Completed Date:  2004-09-30     Revised Date:  2009-11-18    
Medline Journal Info:
Nlm Unique ID:  101245157     Medline TA:  Proc Biol Sci     Country:  England    
Other Details:
Languages:  eng     Pagination:  1745-50     Citation Subset:  IM    
Institute for Nature Conservation Research, Tel-Aviv University, Tel-Aviv, Israel.
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MeSH Terms
Analysis of Variance
Appetitive Behavior / physiology
Chemotaxis / physiology*
Larva / physiology
Movement / physiology
Thoracica / physiology*
Water Movements*

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine

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