@article{fdi:010061897, title = {{I}nfluence of mesoscale eddies on biological production in the {M}ozambique {C}hannel : several contrasted examples from a coupled ocean-biogeochemistry model}, author = {{J}ose, {Y}. {S}. and {A}umont, {O}livier and {M}achu, {E}ric and {P}enven, {P}ierrick and {M}oloney, {C}. {L}. and {M}aury, {O}livier}, editor = {}, language = {{ENG}}, abstract = {{T}he impact of mesoscale activity on phytoplankton and nutrient distribution in the {M}ozambique {C}hannel was simulated by coupling a biogeochemical model ({PISCES}) with a regional oceanic model ({ROMS}). {E}xamples of the effects of eddies on the biogeochemistry of the {M}ozambique {C}hannel are presented to illustrate the complexity of the system. {I}n the model, several cyclonic eddies were found with low concentrations of chlorophyll at their cores, which contrasts with previous studies in the open ocean. {I}n addition, several anticyclonic eddies were simulated with high concentrations of chlorophyll at their cores. {P}hytoplankton growth within these mesoscale features (both cyclonic and anticyclonic eddies) occurred in response to nutrient injection into the euphotic zone by advection, and subsequent retention of surrounding nutrient-rich waters within eddies. {O}ffshore nutrient distributions depended strongly on lateral advection of nutrient-rich water from the coastal regions, induced by eddy interaction with the shelf. {T}he environmental conditions at the locations where eddies were generated had an important effect on nutrient concentrations within these structures.}, keywords = {{O}cean physical-biogeochemical coupling ; {C}yclonic and anticyclonic eddies ; {C}hlorophyll ; {N}utrients ; {M}ozambique {C}hannel ; {MOZAMBIQUE} {CANAL} ; {OCEAN} {INDIEN}}, booktitle = {{T}he {M}ozambique channel : mesoscale dynamics and ecosystem responses}, journal = {{D}eep-{S}ea {R}esearch {P}art {II}.{T}opical {S}tudies in {O}ceanography}, volume = {100}, numero = {{N}o sp{\'e}cial}, pages = {79--93}, ISSN = {0967-0645}, year = {2014}, DOI = {10.1016/j.dsr2.2013.10.018}, URL = {https://www.documentation.ird.fr/hor/fdi:010061897}, }