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| Registros recuperados: 23 | |
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| Pham, Dominique; Mailliez, Jean-rene; Peignon, Jean-marie; Broutoi, Francis; Marteau, Anne-laure; Wabete, Nelly. |
| The caledonian blue shrimp Litopenaeus stylirostris is the second largest export commodity in New Caledonia. This industry is based on 19 production farms but also four hatcheries, two feed production units and two packing plants. The maximum production was reached in 2005 with 2400 tons. Supply of juveniles by hatchery is the bottle neck of the production chain because this species is not present in the natural environment. Recent problems of larval survival led some scientists to work on eco-physiology to propose adaptations of larval rearing protocol. Salinity of the rearing environment is taken as an example to study the influence of abiotic parameters on the animal physiology according to its development stage. The influence of salinity on survival... |
| Tipo: Text |
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| Ano: 2011 |
URL: http://archimer.ifremer.fr/doc/00115/22658/20603.pdf |
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| Pham, Dominique; Charmantier, Guy; Wabete, Nelly; Boulo, Viviane; Broutoi, Francis; Mailliez, Jean-rene; Peignon, Jean-marie; Charmantier-daures, Mireille. |
| The ontogeny of osmoregulationwas investigated in Litopenaeus stylirostris by studying salinity tolerance and osmoregulatory capacity. Shrimp at different larval and postlarval stages were exposed to various salinities and survival was monitored for 24 h. Survival rates exceeded 80% at salinity over 25 ppt (750 mOsm.kg(-1)) at all the stages. At salinities below to 25 ppt, salinity tolerance was higher in nauplii and zoeae than in mysis larvae. Postlarval stages were able to withstand lower salinities, e.g. 6.0 ppt (176 mOsm.kg(-1)) at PL9 stage, but they were more sensitive than larvae to salinities over 35 ppt (1035 mOsm.kg(-1)). Zoea and mysis larvae slightly hyper-regulated at all tested salinities. After metamorphosis, postlarvae progressively... |
| Tipo: Text |
Palavras-chave: Penaeid; Litopenaeus stylirostris; Ontogeny; Osmoregulation; Growth. |
| Ano: 2012 |
URL: http://archimer.ifremer.fr/doc/00107/21843/20058.pdf |
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| Patrois, Jacques; Goyard, Emmanuel; Peignon, Jean-marie; Dufour, Robert; Ansquer, Dominique. |
| A new strain of L. stylirostris was introduced in New Caledonia. Quarantine facilities were set up inland using RAS and artificial seawater. After 5 months of rearing, all the 16 initial families were still represented with a 50% average survival. Three samplings for known pathogens were made during that period, all of them negative. Half the animals were taken to outdoor ponds for rearing to reproduction size when the rest was used to test different arrangements for a biosecure rearing until reproduction. Numerous spawnings and nauplii were obtained but larval rearings could not be completed. Different options are considered for the set up of a biosecure facility allowing the rearing and the breeding of pathogen free strains of shrimp. |
| Tipo: Text |
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| Ano: 2007 |
URL: http://archimer.ifremer.fr/doc/00117/22849/20659.pdf |
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| Registros recuperados: 23 | |
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