Observatoire de l'environnement Nouvelle Calédonie

Il y a environ 2307 résultats pour les termes de recherche: ~riviere OR creek OR eau douce

Affichage des résultats: 781 à 790

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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 ...

Diversity in family farming: Theoretical and empirical approaches to its many forms

The transformations occurring in family-based agricultural structures are raising questions in the academic and political worlds. The questions being asked span the history of agricultural representations over the last century. The ways of perceiving...

Germination of two provenances of Santalum austrocaledonicum var. austrocaledonicum

During the germination phase of a #Santalum austrocaledonicum# progeny trial, important and unexpected differences occurred in the germination rates between two provenances. The "Ile des Pins" provenance conformed with expectations, previous experime...

Sustainability of exploited marine ecosystems through protected areas: A viability model and a coral reef case study

Overexploitation of marine resources remains a problem worldwide. Many works advocate for the use of marine reserves as a central element of future stock management in a sustainable perspective. In the present paper, we address the influence of prote...

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...

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...

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...

Données économiques maritimes françaises 1998

The purpose of this book is to value the economic significance of marine-related activities in France. Each industrial, or public non-commercial, sector is characterized by key figures relating to annual turnover, value added, employment and budget. ...

Detection of shrimp pathogen Vibrio nigripulchritudo in sediments of a New-Caledonian grow-out pond during a drying period

Experimental infections together with epidemiological studies have shown that pathogenic and non‐pathogenic isolates of V. nigripulchritudo co‐existed in shrimp farm environment (2, 3). Moreover, obtained results also demonstrated that the “sum...

L'acidification de l'Océan

This text, directed to the general public exposes, in first part, on the educational point of view, the mechanisms of ocean acidification resulting from the trapping of the carbon dioxide. Then the text presents a state of the knowledge about the spe...