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| Pedrotti, Ml; Fenaux, L. |
| A survey of-selected echinoderm larvae and postlarvae was conducted during Almofront-1 cruise in the eastern Alboran Sea (Mediterranean Sea). In the study zone, surface waters from the Atlantic current enter via Gibraltar forming a hydrologically complex area with associated eddies and gyres. The distribution pattern of echinoderm larvae is described and related to specific biological and physical frontal processes responsible for larval retention or dispersal. In the part of Alboran Sea, influenced by Mediterranean waters, echinoderm larvae and postlarvae were quite scarce in comparison to the stations localised in the Atlantic jet and sites under influence of Atlantic waters where species richness and larval abundance were higher. The Anticyclonic gyre... |
| Tipo: Text |
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| Ano: 1996 |
URL: http://archimer.ifremer.fr/doc/00094/20494/18163.pdf |
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| Marchi, B; Trielli, F; Falugi, C; Corre, Mc; Fenaux, L. |
| Cell-to-cell and cell-environment interactions are known to play a role during the first events of sea urchin development. Larval metamorphosis in benthic invertebrates is induced by environmental signals (cues), received by membrane receptors. The activity of such cues may be disturbed by the presence of toxic agents from pollution. We consider the possibility that neurotransmitter receptor-like molecules may have a role in the regulation of larval development and metamorphosis. To investigate the effects exerted on these processes by neuroactive pollutants, such as neurotoxic insecticides, we tested the function of acetylcholine receptors (muscarinic acetylcholine receptors mAChR and nicotinic acetylcholine receptors nAChR) in larvae of Paracentrotus... |
| Tipo: Text |
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| Ano: 1996 |
URL: http://archimer.ifremer.fr/doc/00096/20747/18376.pdf |
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