|
|
|
|
|
| Andres Aranda-burgos, Jose; Da Costa Gonzalez, Fiz; Novoa, Susana; Ojea, Justa; Martinez-patino, Dorotea. |
| Successful bivalve larval growth and survival depend on stored reserves provided by diet. The aim of this study was to evaluate the effects of microalgal diet on growth, survival, together with biochemical and fatty acid composition during larval development in grooved carpet shell (Ruditapes decussatus). Four mono- and multi-species diets were tested: (1) Isochrysis galbana, Pavlova lutheri and Chaetoceros muelleri (1:1:1, IPC); (2) I. galbana, P. lutheri and C. muelleri (1:1:2, IP2C); (3) I. galbana and P. lutheri (1:1, IP); (4) C. muelleri (C). Our results showed that feeding regime greatly influenced larval growth and survival, as well as biochemical and fatty acid composition. Higher growth and survival rates were observed in the IPC, IP2C and C... |
| Tipo: Text |
Palavras-chave: Ruditapes; Decussatus; Larvae; Diets; Biochemistry; Fatty acids. |
| Ano: 2014 |
URL: http://archimer.ifremer.fr/doc/00161/27261/25470.pdf |
| |
|
|
| Da Costa Gonzalez, Fiz; Barreiro, Berta; Ojea, Justa; Novoa, Susana; Martinez-patino, Dorotea. |
| Commercial production of most bivalve species involves a phase of intermediate cultivation during which juveniles are grown under protected conditions until they can be transferred to the final grow-out location. Consequently, the aim of this study was investigating the effect of density on growth and survival in the intermediate culture of the razor clam Ensis arcuatus in raft. Two series of experiments were performed, using in the first experiment two holding systems: 5-L plastic bottles and PVC cylinders, both perforated, covered with a 1 mm mesh net to prevent razor clam escape and a 10-cm layer of coarse grained sand (300–1200 lm grain diameter). In this trial, two stocking densities were tested: 0.15 and 0.30 kg m-2. In the second one-two densities... |
| Tipo: Text |
Palavras-chave: Ensis arcuatus; Intermediate culture; Density; Raft. |
| Ano: 2015 |
URL: https://archimer.ifremer.fr/doc/00166/27731/25980.pdf |
| |
|
|
| Da Costa Gonzalez, Fiz; Robert, Rene; Quere, Claudie; Wikfors, Gary H.; Soudant, Philippe. |
| Essential fatty acids (EFA) are important for bivalve larval survival and growth. The purpose of this study was to quantitatively assess for the first time through a mass-balance approach dietary EFA incorporation and synthesis within Crassostrea gigas larvae. A first experiment was carried out using two microalgae, Tisochrysis lutea (T) and Chaetoceros neogracile (Cg), as mono- and bi-specific diets. A second experiment using a similar design was performed to confirm and extend the results obtained in the first. Flow-through larval rearing was used for accurate control of food supply and measurement of ingestion. Non-methylene-interrupted fatty acids were synthetized from precursors supplied in the diet: 16:1n-7 and 18:1n-9, mediated by Delta 5... |
| Tipo: Text |
Palavras-chave: Fatty acid; Larvae; Lipids; Metabolism; Oyster; Synthesis. |
| Ano: 2015 |
URL: https://archimer.ifremer.fr/doc/00268/37962/36086.pdf |
| |
|
|
|
