A closed water recirculation system for ecological studies in marine fish larvae: Growth and survival of sea bass larvae fed with live prey
7 pages, 4 figures, 1 table
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EDP Sciences
2000-01
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| Subjects: | Closed recirculation system, Nitrogen compounds, Sea bass larvae, Survival, Growth, Dicentrarchus labrax, Système en circuit fermé, Composés azotés, Larves de bar, Survie, Croissance, |
| Online Access: | http://hdl.handle.net/10261/275392 |
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Closed recirculation system Nitrogen compounds Sea bass larvae Survival Growth Dicentrarchus labrax Système en circuit fermé Composés azotés Larves de bar Survie Croissance Closed recirculation system Nitrogen compounds Sea bass larvae Survival Growth Dicentrarchus labrax Système en circuit fermé Composés azotés Larves de bar Survie Croissance |
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Closed recirculation system Nitrogen compounds Sea bass larvae Survival Growth Dicentrarchus labrax Système en circuit fermé Composés azotés Larves de bar Survie Croissance Closed recirculation system Nitrogen compounds Sea bass larvae Survival Growth Dicentrarchus labrax Système en circuit fermé Composés azotés Larves de bar Survie Croissance Olivar, M. Pilar Ambrosio, Pedro P. Catalán, Ignacio Alberto A closed water recirculation system for ecological studies in marine fish larvae: Growth and survival of sea bass larvae fed with live prey |
| description |
7 pages, 4 figures, 1 table |
| format |
artículo |
| topic_facet |
Closed recirculation system Nitrogen compounds Sea bass larvae Survival Growth Dicentrarchus labrax Système en circuit fermé Composés azotés Larves de bar Survie Croissance |
| author |
Olivar, M. Pilar Ambrosio, Pedro P. Catalán, Ignacio Alberto |
| author_facet |
Olivar, M. Pilar Ambrosio, Pedro P. Catalán, Ignacio Alberto |
| author_sort |
Olivar, M. Pilar |
| title |
A closed water recirculation system for ecological studies in marine fish larvae: Growth and survival of sea bass larvae fed with live prey |
| title_short |
A closed water recirculation system for ecological studies in marine fish larvae: Growth and survival of sea bass larvae fed with live prey |
| title_full |
A closed water recirculation system for ecological studies in marine fish larvae: Growth and survival of sea bass larvae fed with live prey |
| title_fullStr |
A closed water recirculation system for ecological studies in marine fish larvae: Growth and survival of sea bass larvae fed with live prey |
| title_full_unstemmed |
A closed water recirculation system for ecological studies in marine fish larvae: Growth and survival of sea bass larvae fed with live prey |
| title_sort |
closed water recirculation system for ecological studies in marine fish larvae: growth and survival of sea bass larvae fed with live prey |
| publisher |
EDP Sciences |
| publishDate |
2000-01 |
| url |
http://hdl.handle.net/10261/275392 |
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1777667789179322368 |
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dig-icm-es-10261-2753922022-07-13T08:30:00Z A closed water recirculation system for ecological studies in marine fish larvae: Growth and survival of sea bass larvae fed with live prey Un système d'élevage de larves de poisson marin, en circuit fermé : croissance et survie de larves de bar nourries de proies vivantes Olivar, M. Pilar Ambrosio, Pedro P. Catalán, Ignacio Alberto Closed recirculation system Nitrogen compounds Sea bass larvae Survival Growth Dicentrarchus labrax Système en circuit fermé Composés azotés Larves de bar Survie Croissance 7 pages, 4 figures, 1 table [EN] This paper describes the suitability of a closed recirculation system to study the development of fish larvae in a strictly controlled environment, where only feeding was varied (fed, starved, delayed and late fast treatments). The system served both as an incubator and hatchery. The time variation of physical and chemical parameters together with survival and growth of reared sea bass larvae (Dicentrarchus labrax) were studied over the first month of life. The recirculation design allowed for the maintenance of levels of ammonia, nitrite and nitrate below those cited as responsible for mortality or decreased feeding ability in other marine fish larvae. Almost no larval mortality occurred in the fed larvae from day 9 after hatching. The starved group of larvae showed a sharp decline in survival after 16 days of food deprivation. Larvae for which feeding was delayed until day 13 ceased dying 4 days after food was supplied. Fast feeding on days 24 and 25 had no effect on larval survival. Growth in length was similar during the first 2 weeks of larval life regardless of feeding treatment. Two days of late fast had no effect on larval growth. Growth patterns of fed larvae in this study were similar to those reported for larvae reared in flow through systems. We believe that survival and growth of the reared larvae was a direct function of diet, and that the type of rearing system did not adversely affect these parameters. The rearing design and the results obtained suggest that future nutritional studies of field-collected larvae will benefit from this kind of rearing experiment. (C) 2000 Ifremer/Cnrs/Inra/Ird/Cemagref/Editions scientifiques et medicales Elsevier SAS [FR] Cette étude décrit l'adaptation d'un système de circulation d'eau en circuit fermé pour analyser le développement de larves de poisson en milieu strictement contrôlé lorsque seule, l'alimentation varie (larves nourries, à jeun, alimentation différée, et alimentation accélérée mais tardive). Le sytème sert à la fois d'incubateur et d'écloserie. Les variations dans le temps des paramètres physiques et chimiques, associées au taux de survie, à la croissance des larves de bar (Dicentrarchus labrax) ont été étudiées au cours de leur première année. Le système de recirculation permet le maintien de niveaux d'ammoniaque, nitrite et nitrate inférieurs à ceux connus pour provoquer des mortalités ou d'une baisse des capacités nutritionnelles des larves. Presqu'aucune mortalité larvaire ne s'est produite chez les larves nourries à partir du 9e jour après l'éclosion. Le groupe de larves restées à jeun a montré une forte hausse de la mortalité après 16 jours de privation de nourriture. Les larves dont l'alimentation a été différée jusqu'au 13e jour, cessèrent de disparaître 4 jours après qu'elles soient alimentées. Les larves nourries plus rapidement le 24e et 25e jour n'ont pas eu un taux de survie modifié. La croissance en longueur était similaire durant les deux premières semaines de vie larvaire quel que soit le traitement. Deux jours d'alimentation différée mais rapide n'ont pas eu d'effet sur la croissance. Le modèle de croissance des larves nourries dans cette étude était similaire à celui de larves élevées en circuit ouvert. Nous pensons que la survie et la croissance de larves en élevage est une fonction directe de l'alimentation et que ce type de système d'élevage n'affecte pas ces paramètres. Le système d'élevage et les résultats obtenus montrent que des études nutritionnelles sur des larves collectées dans le milieu naturel bénéficieront de ce type d'expérimentation 2022-07-13T08:20:11Z 2022-07-13T08:20:11Z 2000-01 2022-07-13T08:20:11Z artículo issn: 0990-7440 e-issn: 1765-2952 Aquatic Living Resources 13(1): 29-35 (2000) http://hdl.handle.net/10261/275392 10.1016/S0990-7440(00)00136-4 https://doi.org/10.1016/S0990-7440(00)00136-4 Sí none EDP Sciences |