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

  • Ricardo Calado (a1), Cátia Bartilotti (a2), Joseph W. Goy (a3) and Maria Teresa Dinis (a1)

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.

Copyright

Corresponding author

Correspondence should be addressed to: Ricardo Calado CCMAR Universidade do Algarve Campus de Gambelas, 8005-139, Faro Portugal email: rjcalado@hotmail.com

References

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Keywords

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

  • Ricardo Calado (a1), Cátia Bartilotti (a2), Joseph W. Goy (a3) and Maria Teresa Dinis (a1)

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