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Parasitic castration of the stenopodid shrimp Stenopus hispidus (Decapoda: Stenopodidae) induced by the bopyrid isopod Argeiopsis inhacae (Isopoda: Bopyridae)

Published online by Cambridge University Press:  25 March 2008

Ricardo Calado ,
Cátia Bartilotti ,
Joseph W. Goy  and
Maria Teresa Dinis
Ricardo Calado*
Affiliation:
CCMAR Universidade do Algarve, Campus de Gambelas, 8005-139 Faro, Portugal
Cátia Bartilotti
Affiliation:
Instituto Nacional de Investigação Agrária e Pescas, IPIMAR, Avenida de Brasília, s/n. 1449-006 Lisbon, Portugal
Joseph W. Goy
Affiliation:
Harding University, Department of Biology, 915 East Market Avenue, Searcy, Arkansas 72149-2251USA
Maria Teresa Dinis
Affiliation:
CCMAR Universidade do Algarve, Campus de Gambelas, 8005-139 Faro, Portugal
*
Correspondence should be addressed to: Ricardo CaladoCCMAR Universidade do AlgarveCampus de Gambelas, 8005-139, FaroPortugal email: rjcalado@hotmail.com
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Abstract

The present work reports the existence of parasitic castration induced by the bopyrid isopod Argeiopsis inhacae parasitizing the branchial chamber of female Stenopus hispidus. Parasitized and unparasitized females of S. hispidus displayed similar intermoult periods (14 ± 2 d) and exhibited similar mating behaviours. However, despite exhibiting typical mating behaviour, parasitized females were never able to produce any egg clutch when paired with unparasitized males; neither displayed the typical ‘dorsal bright green spot’ evidencing the presence of large vitellogenic oocytes. The idea that bopyrid infections generally lead to the ‘reproductive death’ of the decapod host is reinforced and the apparent existence of a heavily sex-biased infection towards females in S. hispidus may just be a consequence of the still limited number of surveyed specimens.

Keywords

parasitic castrationbopyrid isopodsStenopus hispidusArgeiopsis inhacae
Type
Research Article
Information
Journal of the Marine Biological Association of the United Kingdom , Volume 88 , Issue 2 , March 2008 , pp. 307 - 309
Copyright
Copyright © Marine Biological Association of the United Kingdom 2008

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References

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