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El Abed, A.; Zouiten, D.; Missaoui, H.; Abdennadher, A.; Besbes, R.; Ben Khemis, I.. |
Dans le cadre du programme national de recherche intitulé Technologies d’élevage de nouvelles espèces marines à intérêt aquacole, un élevage larvaire de mulet lippu (Chelon labrosus) a été réalisé en conditions semi extensives en mésocosme. Ce travail présente les croissances linéaire et pondérale des larves âgées de 1 à 30 jours (J1-J30) ainsi que leurs caractéristiques (taux de croissances spécifiques, relations d’allométrie, ….). Il décrit aussi les principales étapes observées au cours du développement larvaire. Un échantillonnage de 15 larves a été effectué quotidiennement pendant les treize premiers jours puis tous les trois à quatre jours jusqu’à la fin de l’élevage. Les larves, préalablement fixées au glutharaldhéyde (solution à 2,5% dans du tampon... |
Tipo: Proceedings Paper |
Palavras-chave: Chelon Labrosus; Mulet Lippu; Elevage larvaire; Mullet fisheries; Larval settlement. |
Ano: 2003 |
URL: http://hdl.handle.net/1834/180 |
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Buratti, C.C.. |
The life history of numerous aquatic organisms involves a pelagic larval stage, followed by a shift to a demersal or benthic existence (settlement) in the juvenile and adult stage. This transition and ecological, physiological and morphological changes frequently remain recorded like checks or marks in fish otoliths. As a contribution to the knowledge of hake (Merluccius hubbsi)life history, sagittae otoliths of larvae and juveniles with total length between 19 and 190 mm inhabiting North Patagonian and Bonaerensis waters in the Argentine sea (SW Atlantic)were analyzed. Using an image analysis system, otoliths microstructure was described and comparisons between left and right otoliths and between study areas in the following variables were realized:... |
Tipo: Theses and Dissertations |
Palavras-chave: Fish larvae; Juveniles; Otolith reading; Otoliths; Larval settlement; Life history; Otoliths; Life history; Fish larvae; Juveniles. |
Ano: 2003 |
URL: http://hdl.handle.net/1834/3108 |
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Braverman, M.. |
This study encompasses the bio-physical interactions of whitemouth croaker (Micropogonias furnieri) early life stages living in La Plata estuary (Argentina-Uruguay, South America) to understand how they take advantage of the estuarine dynamics while traveling from spawning to nursery areas and undergoing ontogenetic and associated ecological changes. The analyses used include studies of spatio-temporal distribution length-dependent patterns; growth patterns looking for settlement marks in otoliths; and development related to metamorphosis and ontogenetic variations of the diet and trophic level. Samples and data come from vertically stratified samplings from 3 cruises (2005, 2006 and 2009). Distributional data also comes from an historic database. Results... |
Tipo: Theses and Dissertations |
Palavras-chave: Fish larvae; Developmental stages; Metamorphosis; Larval settlement; Ontogeny; Saline fronts; Estuarine dynamics. |
Ano: 2011 |
URL: http://hdl.handle.net/1834/4187 |
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