Observatoire de l'environnement Nouvelle Calédonie

Il y a environ 2304 résultats pour les termes de recherche: ~riviere OR creek OR eau douce

Affichage des résultats: 781 à 790

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Different surveys provide similar pictures of trends in a marine fish community but not of individual fish populations

Choice of sampling method and survey period can have an important impact on the perception of the structure and dynamics of an ecological community. For the Celtic Sea fish assemblage we compared data obtained by three different trawl surveys: an aut...

Acquisition of susceptibility to Vibrio penaeicida in Penaeus stylirostris postlarvae and juveniles

Vibriosis is a major disease problem in shrimp aquaculture, affecting all developmental stages, from larvae in hatchery tanks to juveniles and broodstock in growout ponds. However, bacterial strains responsible for vibriosis in the successive stages ...

Earliest Eocene (53 Ma) convergence in the Southwest Pacific; evidence from pre-obduction dikes in the ophiolite of New Caledonia.

Uncertainty about timing and location of the initiation of convergence in the western and south western Pacific greatly hinders accurate plate tectonic reconstructions of subduction systems in that area. The chemistry and age of dikes intruding mantl...

Notes on the biology of the bigeye scad, Selar crumenophthalmus (Carangidae) around Reunion Island, southwest Indian Ocean

The main characteristics of the biology of bigeye scad were studied from commercial fishery catches around Reunion Island. Biometric relationships were calculated. The monitoring of size distribution, aggregated by month, allowed us to estimate the t...

Molecular epidemiology of Vibrio nigripulchritudo, a pathogen of cultured penaeid shrimp (Litopenaeus stylirostris) in New Caledonia

A collection of 57 isolates of Vibrio nigripulchritudo from either diseased or healthy shrimp and from shrimp farms environment was studied in order to gain a better understanding of the epidemiology of this pathogen, notably isolated from two distin...

Experimental evaluation of co-culture of juvenile sea cucumbers, Holothuria scabra (Jaeger), with juvenile blue shrimp, Litopenaeus stylirostris (Stim...

The co-culture of juvenile sea cucumber Holothuria scabra (Jaeger), or 'sandfish', with juvenile blue shrimp Litopenaeus stylirostris (Stimpson) was tested by growing groups in co-culture and monoculture for 3 weeks in tanks with enriched sand substr...

A mass stranding of seven Longman's beaked whales (Indopacetus pacificus) in New Caledonia, South Pacific

Seven Longman's beaked whales (Indopacetus pacificus) stranded together in southern New Caledonia on 16 November 2013 (one adult male, two adult females, two subadult females, one calf, and one unknown). At this time, we have no evidence to suggest t...

Multiple cryptic species in the blue-spotted maskray (Myliobatoidei : Dasyatidae : Neotrygon spp.) : an update

Previous investigations have uncovered divergent mitochondrial clades within the blue-spotted maskray, previously Neotrygon kuhlii (Muller and Henle). The hypothesis that the blue-spotted maskray may consist of a complex of multiple cryptic species h...

Effect of early, short-term supplementation on weight and linear growth of 4-7-mo-old infants in developing countries : a four-country randomized tria...

The effect of supplementation on growth was tested by means of four similar controlled randomized trials in the Congo (n = 120), Senegal (n = 110), Bolivie (n = 127), and New Caledonia (n = 90). Four month-old infants were randomly allocated to suppl...

ENSO and short-term variability of the south equatorial current entering the Coral Sea

Historical section data extending to 1985 are used to estimate the interannual variability of transport entering the Coral Sea between New Caledonia and the Solomon Islands. Typical magnitudes of this variability are +/- 5-8 Sv (Sv = 10(6) m(3) s(-1)...