@article{fdi:010062017, title = {{N}atural spatial variability of algal endosymbiont density in the coral {A}cropora globiceps : a small- scale approach along environmental gradients around {M}oorea ( {F}rench {P}olynesia)}, author = {{L}adriere, {O}. and {P}enin, {L}. and {V}an {L}ierde, {E}. and {V}idal-{D}upiol, {J}. and {K}ayal, {M}. and {R}oberty, {S}. and {P}oulicek, {M}. and {A}djeroud, {M}ehdi}, editor = {}, language = {{ENG}}, abstract = {{T}his study provides a baseline describing natural small scale variability of {S}ymbiodinium density in the sentinel coral {A}cropora globiceps during the summer, under non-bleaching conditions. {S}patial scales investigated range from the colony scale (1-10cm, i.e. among branches of the same colony) to the reef scale (1-10km, i.e. among stations distributed over several locations and depths), at {M}oorea {I}sland, {F}rench {P}olynesia. {T}he coral-{S}ymbiodinium symbiosis is a key process in scleractinian coral physiology, and {S}ymbiodinium density provides an easy-to-measure and inexpensive biomarker of this symbiosis health. {S}patial variability of three major environmental factors: light intensity, sedimentation and water motion was also assessed to evaluate their potential link with {S}ymbiodinium density. {D}ensity of {S}ymbiodinium did not significantly differ within colonies or among colonies within a station. {H}owever, a marked depth gradient was observed, showing increasing density with increasing depth and decreasing light intensity. {T}hese observations provide an interesting reference for forthcoming comparisons with disturbed conditions, such as bleaching events.}, keywords = {{S}ymbiodinium density ; multi-scale variability ; scleractinian corals ; symbiosis ; environmental gradients ; {POLYNESIE} {FRANCAISE}}, booktitle = {}, journal = {{J}ournal of the {M}arine {B}iological {A}ssociation of the {U}nited {K}ingdom}, volume = {94}, numero = {1}, pages = {65--74}, ISSN = {0025-3154}, year = {2014}, DOI = {10.1017/s0025315413001252}, URL = {https://www.documentation.ird.fr/hor/fdi:010062017}, }