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| Registros recuperados: 40 | |
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| Bach, Pascal; Lablache-Carrara, G.. |
| Hand-line fishing includes three techniques "long-lines, ledgering" and "drad fishing" used by four types of boat making up the fleet : canoes, open boats, whaling boats and schooners. The result of the following preliminary analyses : non parametric inter specific correlations, species diversity, factorial correspondence analysis, multiple regression, demonstrate the heterogeneity of the behaviour of the boats with respect to the available fish fauna. This heterogeneity results from differences in the fishing radius between boats and the species selectivity of each technique. The species composition of the catch in terms of volume is characteristic for each technique and boat type. (Résumé d'auteur) |
| Tipo: Text |
Palavras-chave: PECHE ARTISANALE; ENGIN PECHE; LIGNE DE PECHE; ANALYSE STATISTIQUE; COEFFICIENT DE CORRELATION. |
| Ano: 1991 |
URL: http://www.documentation.ird.fr/hor/fdi:36734 |
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| Bradley, E.F.; Coppin, P.A.; Godfrey, J.S.. |
| Micrometeorological measurements, including direct eddy - correlation heat and moisture fluxes, have been made under light wind conditions in the western equatorial Pacific. The sea surface "cool skin" of about O.5°C was observed; air-sea temperature differences were 1-1.5°C larger than long term averages from merchant-ship data. Bulk transfer coefficients for both fluxes increased markedly as wind speed fell below 4 m/s, in excellent agreement with the predictions of Liu et al. (1979). Dissipation estimates of the fluxes are about half the covariance measurements below 4 m/s. Observations of the individual components of radiation suggest that commonly used empirical formulations overestimate both long - and short wave in this region by 15-20 W/m2.... |
| Tipo: Text |
Palavras-chave: INTERACTION OCEAN ATMOSPHERE; FLUX THERMIQUE; COEFFICIENT DE CORRELATION; VAPEUR D'EAU. |
| Ano: 1989 |
URL: http://www.documentation.ird.fr/hor/fdi:30239 |
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| Registros recuperados: 40 | |
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