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| Comabella Soto, Y.. |
| El estudio de la etapa larval de Atractosteus tristoechus fue realizado a través del análisis morfo-fisiológico bajo condiciones de cultivo a 28o C, desde la eclosión hasta los 18 días después de eclosionadas (DDE) las larvas. Se identificaron y describieron tres etapas de desarrollo: adherida 0-3 DDE, de transición 4-10 DDE y libre nadadora 11-18 DDE. Las tasas de crecimiento fueron de 1,30 mm/d y 10,2 %/d, encontrándose una desaceleración en la segunda etapa que coincide con las mayores alometrías, lo que indica fuertes cambios morfogénicos. En esta etapa crítica es donde ocurre el agotamiento del vitelo y la transición de la alimentación endógena a exógena. A los 4 DDE el tracto digestivo está diferenciado... |
| Tipo: Theses and Dissertations |
Palavras-chave: Aquaculture; Larvae development; Morphology (biology). |
| Ano: 2011 |
URL: http://hdl.handle.net/1834/5384 |
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| Auby, Isabelle; Maurer, Daniele; Cassam Chenai, Yoann; Tournaire, Marie-pierre; Neaud-masson, Nadine; Rumebe, Myriam; Cantin, Christian; Debort, Henriette; Germain, Jean-marie; Navarro, Romuald. |
| Introduction: During each summer season, the IFREMER laboratory of Arcachon monitors, within the framework of the agreement with the Arcachon- Aquitaine Shellfish Farming Regional Section (SRC), the reproduction of cup oysters in the Arcachon basin. This monitoring has as its goal to furnish oyster farmers with the information needed to implement spat catches: - dates and size of egg clutches, - larvae development rate, - presence in the environment of more evolved stages (close to fixation). Reproduction was monitored between mid-June and mid-September, plankton was fished four times per week at the various sites representative of the basin. Oyster larvae at various stages are enumerated there. At the end of the reproductive season (September to... |
| Tipo: Text |
Palavras-chave: Crassostrea gigas; Larvae collection; Spat oyster; Larvae development; Reproduction; Arcachon Bassin; Ostreidae; Crassostrea Gigas; Bivalvia; Mollusca; Aquaculture; Naissain; Captage Larve; Developpement Larvaire; Maturation; Reproduction. |
| Ano: 2006 |
URL: http://archimer.ifremer.fr/doc/2006/rapport-2216.pdf |
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