Blanchot Jean, Le Borgne Robert, Le Bouteiller Aubert, Rodier Martine. (1989). ENSO events and consequences on nutrient, planktonic biomass, and production in the western tropical pacific ocean. In :
Picaut Joël (ed.), Lukas R. (ed.), Delcroix Thierry (ed.). Western Pacific international meeting and workshop on Toga Coare : proceedings. Nouméa : ORSTOM, p. 785-790. Western Pacific International Meeting and Workshop on Toga Coare, Nouméa (NCL), 1989/05/24-30.
Titre du document
ENSO events and consequences on nutrient, planktonic biomass, and production in the western tropical pacific ocean
Année de publication
1989
Type de document
Colloque
Auteurs
Blanchot Jean, Le Borgne Robert, Le Bouteiller Aubert, Rodier Martine
In
Picaut Joël (ed.), Lukas R. (ed.), Delcroix Thierry (ed.), Western Pacific international meeting and workshop on Toga Coare : proceedings
Source
Nouméa : ORSTOM, 1989,
p. 785-790
Colloque
Western Pacific International Meeting and Workshop on Toga Coare, Nouméa (NCL), 1989/05/24-30
ENSO events change the hydrographical structures and the planktonic biomass and production particularly in the low latitude region of the Pacific ocean. We compare here the consequences of these variations at 165°E, in two opposite situations, i.e. during an ENSO event in september 1987 and during an non ENSO event in september 1988. Preliminary conclusions show : (i) for the nutrients in september 1987, a thick nutrient-depleted mixed layer (under detectable limits) along the transect, except at 10°S and 9°S and in september 1988, a wide upwelling between 5°S and 2°N with surface nitrate concentrations ranging between 0.3 and 2mM; (ii) for phytoplankton, the abundance of cyanobacteria (procaryotes) and microalgae (eucaryotes) shows large changes both in cells abundance and depth distribution between two periods ... (iii) Primary production maximum is deeper during ENSO event whereas it is shallow in the upwelling situation.
Plan de classement
Climatologie / Météorologie [032CLIMET]
;
Synécologie [036MILMAR02]
Descripteurs
CONSEQUENCE ECOLOGIQUE ; PRODUCTION BIOLOGIQUE ; SEL NUTRITIF ; BIOMASSE ; ZOOPLANCTON ; PHYTOPLANCTON ; ENSO ; 1987 1988
Description Géographique
PACIFIQUE TROPICAL OUEST
Localisation
Fonds IRD [F A30263] ;
Montpellier (Centre IRD)
;
Nouméa
Identifiant IRD
fdi:30263
