Abstract
The crustacean family of isopods, Dajidae, comprises 18 genera containing 54 species with widespread distribution. The species of this family are ectoparasites, especially on euphausiids, mysids and shrimps. The species of Holophryxus acanthephyrae has a life cycle involving a first intermediate host (copepod) and a definitive host (shrimp), and adheres particularly on deep-sea shrimps of genus Acanthephyra. Here, we make the first report of dajid isopod Holophryxus acanthephyrae from Brazilian waters (South Atlantic) and the first occurrence as parasite on deep-sea shrimp Acanthephyra acanthitelsonis. The specimen was collected under the framework of the project “ABRACOS 2” (Acoustic along the BRazilian COast), on board of R/V Antea in April 2017, using a Micronekton net (mesh size of 10 mm) in Rocas Atoll. The specimen female of Holophryxus acanthephyrae was found in pelagic zone in Rocas Atoll, at 630 m depth. This study increases the knowledge on Dajidae family and their host range.
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Acknowledgments
The first author would like to thank the scholarship granted by Capes (Coordenação de Aperfeiçoamento de Pessoal de Nível Superior) for the doctoral scholarship on Oceanography. We also acknowledge the French oceanographic fleet for funding the ABRACOS 2 survey (https://doi.org/10.17600/17004100) and the officers and crew of the R/V Antea for their contribution to the success of the operations. The authors would like to thank the anonymous reviewers for their precious comments on this paper.
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de Almeida Alves-Júnior, F., Bertrand, A., de á Leitão Câmara de Araújo, M. et al. First Report of the Ectoparasitic Isopod, Holophryxus acanthephyrae Stephensen 1912 (Cymothoida: Dajidae) in the South Atlantic: Recovered from a New Host, the Deep-Sea Shrimp, Acanthephyra acanthitelsonis Spence Bate, 1888. Thalassas 35, 13–15 (2019). https://doi.org/10.1007/s41208-018-0072-3
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DOI: https://doi.org/10.1007/s41208-018-0072-3