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First record of a lecithotrophic nauplius in Harpacticoida (Crustacea, Copepoda) collected from the Weddell Sea (Antarctica)

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Summary

During an investigation of the meiofauna communities of the eastern Weddell Sea (Antarctica) the first naupliar stage of a new species of Pseudotachidius T. Scott, 1897 (Thalestridae) was held in culture on board R V Polarstern. These nauplii are extraordinary for a harpacticoid copepod in being globular in shape and densely filled with yolk. They lack mouth, gut tube, anus and the masticatory parts of the appendages, all of which indicate that they do not feed. It is not unlikely that later stages are also able to subsist safely on the large yolk reserves.

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  1. Universität Oldenburg, Fachbereich 7, Arbeitsgruppe Zoomorphologie, D-2900, Oldenburg, Federal Republic of Germany

    Hans-Uwe Dahms

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  1. Hans-Uwe Dahms
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Dahms, HU. First record of a lecithotrophic nauplius in Harpacticoida (Crustacea, Copepoda) collected from the Weddell Sea (Antarctica). Polar Biol 10, 221–224 (1989). https://doi.org/10.1007/BF00238498

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  • DOI: https://doi.org/10.1007/BF00238498

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