FN Archimer Export Format
PT J
TI On the Nutrient distribution and phytoplankton biomass in the Gulf of Guinea equatorial band as inferred from In-situ measurements
BT 
AF Nubi, O A
   BOURLES, Bernard
   Edokpayi, C A
   Hounkonnou, M N
AS 1:1;2:2;3:3;4:4;
FF 1:;2:;3:;4:;
C1 Nigerian Institute for Oceanography and Marine Research, Lagos, Nigeria.
   Institut de Recherche pour le Développement (IRD) de Brest, Plouzané, France.
   Marine Sciences Department, University of Lagos, Nigeria.
   International Chair in Mathematical Physics and Applications (ICMPA), University of Abomey-Calavi, Republic of Benin
C2 NIOMR, NIGERIA
   IRD, FRANCE
   UNIV LAGOS, NIGERIA
   UNIV ABOMEY CALAVI, BENIN
SI BREST
SE IRD
TC 0
UR https://archimer.ifremer.fr/doc/00621/73324/72489.pdf
LA English
DT Article
CR EGEE/1
   EGEE/2
   EGEE/3
   EGEE/4
   EGEE/5
   EGEE/6
   PIRATA
BO Le Suroît
   L'Atalante
   Antea
DE ;Advection;equatorial undercurrent;equatorial upwelling;Gulf of Guinea;nutrients;phytoplankton biomass.
AB Oceanographic in situ data collected in the Gulf of Guinea during six cruises carried out between 2005 and 2007 were analysed to study the influence of equatorial upwelling on the productivity of the region. At 10°W, observations during boreal summer and autumn cruises captured seasonal upwelling influences. In response to the shoaling pycnocline in June 2005, higher concentrations of nitrate and chlorophyll fluorescence were recorded at the ocean surface in June than in September. Our findings challenge the paradigm that westward advection from the nutrient-rich African coast is responsible for equatorial enrichment in the Gulf of Guinea. Vertical sections of the parameters under study in the summer of 2005 showed no westward advection from 3°E to 10°W within the equatorial band. This emphasizes the important role of vertical processes in equatorial enrichment at 10°W. An additional aspect of our study provides evidence of the impact on nutrient and chlorophyll distribution of off-equatorial westward recirculation of equatorial undercurrent waters (observed between 2°and 3°S). 
PY 2016
PD JUN
SO Journal of Oceanography and Marine Science
SN 2141-2294
PU Academic Journals
VL 7
IS 1
BP 1
EP 11
DI 10.5897/JOMS2016.0124
ID 73324
ER

EF