Effects of salinity on embryonic development of Palaemonetes argentinus (Crustacea: Decapoda: Palaemonidae) cultured in vitro
نویسنده
چکیده
ROMINA B. ITUARTE1,3, EDUARDO D. SPIVAK1 and KLAUS ANGER2* Departamento de Biología, Facultad de Ciencias Exactas y Naturales, Universidad de Mar del Plata, Casilla de Correo 1245, 7600 Mar del Plata, Argentina Biologische Anstalt Helgoland, Stiftung Alfred-Wegener-Institut für Polarund Meeresforschung, Meeresstation, 27498 Helgoland, Germany Tel. +49 (4725) 819348; Fax (+49) 4725 8193; email: [email protected] Consejo Nacional de Investigaciones Científicas y Técnicas, Argentina
منابع مشابه
Environmental stress upon hepatopancreatic cells of freshwater prawns (Decapoda: Caridea) from the floodplain of Paraná River
In order to evaluate the influence of stressed environments on hepatopancreatic cells of freshwater prawns, Macrobachium borellii Nobili, 1896 and Palaemonetes argentinus Nobili 1901, (Crustacea, Decapoda, Palaemonidae) were collected at three different aquatic environments with different relationship to urban development in Argentina. Furthermore the effects of several cypermethryn concentrati...
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Embryos, larvae, and adults of Palaemonetes argentinus tolerate a wide range of salinities (1 to 25‰). While osmoregulatory capacities have previously been demonstrated in all postembryonic stages, little is known about the occurrence of osmoregulation during the embryonic phase. We examined ontogenetic and salinity-induced changes in the activity of a key enzyme involved in osmoregulation, Na+...
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Recent phylogenetic work (Ashelby et al., 2012) has demonstrated the need for a fresh appraisal of the systematic status of some Palaemoninae genera. In the present contribution the accumulated morphological as well as molecular evidence is reviewed. The genera Palaemonetes, Exopalaemon and Coutierella are demonstrated to be junior synonyms of Palaemon, which now contains 83 species. As a resul...
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The present work describes the effect of different salinities on the functional morphology of the P. argentinus hepatopancreas and analyses the tissue recovery after re-acclimation to freshwater. Adult prawns of both sexes at sexual rest were collected from a tributary of the Mar Chiquita coastal lagoon. The prawns were acclimated in aquaria to four salinity conditions: 0 (control), 8, 16 and 2...
متن کاملFine structural analysis of the epithelial cells in the hepatopancreas of Palaemonetes argentinus (Crustacea, Decapoda, Caridea) in intermoult.
The aim of this study is to describe the ultrastructure of the hepatopancreas of P. argentinus in intermoult. P. argentinus hepatopancreas was studied using standard TEM techniques. Each tubule consists of four cellular types: E (embryonic), F (fibrillar), R (resorptive) and B (blister like). E-cells have embryonic features and some of them were found in mitosis. F, R and B cells possess an api...
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