@article{fdi:010080271, title = {{I}n-situ variability of {DOM} in relation with biogeochemical and physical parameters in {D}ecember 2017 in {L}aucala {B}ay ({F}iji {I}slands) after a strong rain event}, author = {{K}oliyavu, {T}. and {M}artias, {C}hlo{\'e} and {S}ingh, {A}. and {M}ounier, {S}. and {G}{\'e}rard, {P}hilippe and {D}upouy, {C}{\'e}cile}, editor = {}, language = {{ENG}}, abstract = {{H}eavy rain events alter the biogeochemical outflows, affects water quality and ecosystem health within the coastal waters of small {P}acific {I}slands. {W}e characterized snapshots of the optical fingerprints of dissolved organic matter ({DOM}) sources together with the select nutrients, biogeochemical and physical variables for 10 stations in {D}ecember 2017 in {L}aucala {B}ay, {F}iji {I}slands. {DOM} absorption coefficients and fluorescence components were determined via spectrofluorometry and {P}arallel {F}actor {A}nalysis identifying four components: {T}ype {M}, two terrestrial (humic, fulvic) components, and a protein component linked to marine biological activity. {A}ssociations of {DOM} together with climate variables and the other tested variables were determined via principal component, hierarchical cluster, and cross-correlation ({P}earson) analysis. {A}ll components (together with most tested variables) displayed higher values (plumes) at the southwest coast consistent with surface currents outflow during the wet season. {T}ype {M} component associated with two allochthonous fluorescent components signaling anthropogenic forcings via riverine outflows. {T}errigenous inputs association with autochthonous chromophoric dissolved organic matter ({CDOM}) is indicative of tidal mixing, dilution, and bottom resuspension processes. {P}ositive correlations of dissolved organic carbon ({DOC}) with nutrients ({NO}x, {PO}4) elucidates {DOM} being utilized as energy sources.{T}he positive correlation of {DON} with nutrients ({NO}x, {PO}4, {S}i({OH})4) reflects the role of {DON} as a nutrient source consistent with chlorophyll plume formation.}, keywords = {{MILIEU} {MARIN} ; {CYCLE} {BIOGEOCHIMIQUE} ; {MATIERE} {ORGANIQUE} {DISSOUTE} ; {ABSORPTION} ; {FLUORESCENCE} ; {CHLOROPHYLLE} ; {PACIFIQUE} ; {FIDJI} ; {LAUCALA} {BAIE}}, booktitle = {}, journal = {{J}ournal of {M}arine {S}cience and {E}ngineering}, volume = {9}, numero = {3}, pages = {241 [22 en ligne]}, ISSN = {2077-1312}, year = {2021}, DOI = {10.3390/jmse9030241}, URL = {https://www.documentation.ird.fr/hor/fdi:010080271}, }