Observatoire de l'environnement Nouvelle Calédonie

Il y a environ 1606 résultats pour les termes de recherche: activités récréatives

Affichage des résultats: 731 à 740

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À la rencontre de poissons rares et endémiques du Sud calédonien

[Les cours d'eau autour de l'exploitation minière de Vale NC sont soumis à des pressions chroniques.]Les rivières du Grand Sud abritent des poissons d'intérêt patrimonial fort. Elles sont pourtant soumises à d'importantes pressions liées aux a...

Variabilité des manifestations hydrothermales actuelles le long d'une dorsale ultra rapide. Dorsale Est Pacifique entre 17° et 19° S (campagne NAUD...

69 new hydrothermal sites were discovered during the Naudur diving cruise. Dives were conducted between 17 degrees 5 and 18 degrees 40'5 on four segments showing marked contrast in morphology, volcanic, tectonic and hydrothermal activity. At 17 degre...

Influence of the mode of macrofauna-mediated bioturbation on the vertical distribution of living benthic foraminifera: First insight from axial tomode...

We investigated the influence of bioturbation by macrofauna on the vertical distribution of living (stained) benthic foraminifera in marine intertidal sediments. We investigated the links between macrofaunal bioturbation and foraminiferal distributio...

Retour sur deux projets de développement en aquaculture outre-mer : leçons pour l’avenir

Lessons for the future from two development projects in aquaculture in the French overseas territories. Numerous research and development projects have been launched since the seventies in the French overseas territories. Their aim was to foster new ...

Effect of dietary probiotic Pediococcus acidilactici on antioxidant defences and oxidative stress status of shrimp Litopenaeus stylirostris

in this study we evaluated the effects of the probiotic Pediococcus acidilactici MA18/5M on shrimp, Litopenaeus stylirostris (also called Penaeus stylirostris), first on antioxidant defences and secondly on the oxidative stress status in the shrimps'...

Selection and characterization of potential probiotic bacteria for Litopenaeus stylirostris shrimp hatcheries in New Caledonia

In New Caledonia, shrimp hatcheries are confronted with mass mortality in the larval stages, a phenomenon poorly understood as no specific causative agent has been identified. This has resulted in an excessive use of prophylactic antibiotics, althoug...

Probiotic P-acidilactici application in shrimp Litopenaeus stylirostris culture subject to vibriosis in New Caledonia

We studied the effects of a lactic acid bacterium, Pediococcus acidilactici (strain MA 18/5M, CNCM), as a dietary probiotic on growth performance and some nutritional and microbiological aspects of the shrimp Litopenaeus stylirostris. Experimental sh...

Massifs forestiers d'intérêt prioritaire - Fiches de suivi - Observations du 07 janvier 2016

Le suivi des massifs forestiers d'intérêt prioritaire est géré par Vale NC et réalisé par la société Bluecham SAS. Il sert à identifier les impacts sur la végétation à proximité de l'Usine de Vale NC par télédétection, en analysant d...

Stability of spatial structures of demersal assemblages: a multitable approach

The present work is based on a set of bottom trawl surveys performed in the Gulf of Lions between 1983 and 1992. A new method which couples the STATIS multitable approach with the logic of correspondence analysis (CoA) is proposed to study the stabil...

Nutrition, digestion et développement des larves de crevettes et poissons marins

This report is presented by Chantal Cahu for obtaining accreditation to supervise research. Since 1981, her research activity has addressed the study of reproducers' nutrition and the young stages of development of marine organisms belonging to two d...