@article{fdi:010079898,
  title = {{P}lankton spatial variability within the {M}arquesas archipelago, {S}outh {P}acific},
  author = {{M}artinez, {E}lodie and {R}odier, {M}artine and {P}agano, {M}arc and {S}auzede, {R}.},
  editor = {},
  language = {{ENG}},
  abstract = {{T}he {M}arquesas {I}slands, in the central {S}outh {P}acific, is a region of enhanced phytoplankton enrichment visible from space and is a hotspot of endemism and biodiversity; however, it has been poorly studied. {I}n situ physical-chemical-biological concomitant observations are almost non-existent and all located close to the main northern island, while ocean dynamics based on satellite observations and numerical modeling show contrasting north/south patterns within the archipelago. {T}hus, we took the opportunity of the {P}akahi {I} te {M}oana cruise conducted in 2012 to collect hydrological and plankton samples and investigate biogeochemical spatial patterns, especially north/south, over the archipelago. {T}hese data provide the first description of the spatial and vertical distribution of physical, chemical and plankton characteristics over the entire {M}arquesas archipelago, and give a first hint to improve our understanding of this planktonic enrichment. {T}he whole archipelago appeared to be a macro-nutrient-rich environment. {D}ifferent patterns in the physical, chemical and biological vertical distributions were observed between the northern vs. southern part of the archipelago, and offshore vs. nearshore stations. {P}hytoplankton biomasses were higher in the north where stratification was weaker, compared to the south and higher close to the islands than offshore. {P}hytoplankton all over the archipelago was largely dominated by picophytoplankton; specifically, {P}rochlorococcus presented a more widespread distribution than previously thought and were present over a large range of nutrient concentrations. {C}opepods were always the most abundant taxa in the archipelago but showed higher mean relative abundances near the islands. {T}he importance of suspension-feeding zooplankton in the northern islands coincided with the highest biomasses of phytoplankton with a predominance of nano- and micro-phytoplankton. {T}his was consistent with a young community responding to nutrient enrichment by an increase of suspension-feeders animals and bottom-up effect on zooplankton. {O}pposite to this, small copepods were significantly less abundant in the northern offshore region and the dominance of carnivorous forms coincided with low phytoplankton biomass and strong dominance of picoplankton, suggesting a microbial grazing pathway and more mature communities.},
  keywords = {{I}sland mass effect ; {M}arquesas {I}slands ; {S}outh {P}acific ; {O}ceanographic cruise ; {P}lankton distribution ; {PACIFIQUE} ; {MARQUISES}},
  booktitle = {},
  journal = {{J}ournal of {M}arine {S}ystems},
  volume = {212},
  numero = {},
  pages = {103432 [13 ]},
  ISSN = {0924-7963},
  year = {2020},
  DOI = {10.1016/j.jmarsys.2020.103432},
  URL = {https://www.documentation.ird.fr/hor/fdi:010079898},
}