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Latin american journal of aquatic research

On-line version ISSN 0718-560X

Abstract

MEJIA-SANCHEZ, Nathalia  and  MARQUES, Antonio C. Getting information from ethanol preserved nematocysts of the venomous cubomedusa Chiropsalmus quadrumanus: a simple technique to facilitate the study of nematocysts. Lat. Am. J. Aquat. Res. [online]. 2013, vol.41, n.1, pp.166-169. ISSN 0718-560X.  http://dx.doi.org/103856/vol41-issue1-fulltext-14.

Preserved specimens make it difficult to study nematocysts. We tested an hydration protocol on ethanol preserved tentacles of Chiropsalmus quadrumanus (Cubomedusae) during a period of ten days, and quantified the success of retrieval of information. After six days of hydration, it was possible to observe discharged and undischarged capsules of the three types of nematocysts. We conclude that hydration is a possible solution to study various aspects of the cnidome, recovering information otherwise lost.

Keywords : Cubozoa; nematocysts; taxonomy; venom; hydration.

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