@article{fdi:010061810,
  title = {{S}clerochronological studies in the humboldt current system, a highly variable ecosystem},
  author = {{G}osselin, {M}. and {L}azareth, {C}laire {E}. and {O}rtlieb, {L}uc},
  editor = {},
  language = {{ENG}},
  abstract = {{T}he {H}umboldt {C}urrent that bathes the west coast of {S}outh {A}merica is affected by different influences at daily to decadal periodicities. {E}nvironmental influences such as upwelling or coastal trapped waves as well as climate influences such as {E}l {N}ino southern oscillation and {P}acific decadal oscillation events interact and modify the thermonutricline depth of this {H}umboldt {C}urrent {S}ystem. {T}he position of this thermonutricline plays a key role in {H}umboldt {C}urrent {S}ystem functioning by driving sea surface temperature ({SST}) and primary production variations. {A}s filter feeders, bivalves are particularly affected by {SST} and primary production, and their shells can provide information about these two environmental factors. {U}sing sclerochronology, we studied three bivalve species from different ecological niches living along the {P}eruvian-{C}hilean coast. {D}epending on the species, thick or thin sections, etched or not, were studied using an optical microscope. {I}ncrement thicknesses were measured at the surface of the shell and/or in cross-section. {M}oreover, the mineralogical composition of the different layers of the studied shells was determined on thin sections by {F}ourier transform infrared spectroscopic analyses. {G}rowth results were then interpreted tentatively in terms of environmental variations. {F}or the free-living, short-lived {P}ectinidae {A}rgopecten purpuratus, the daily growth rhythm is linked to the solar period whereas growth amplitude seems to be related to the occurrence of spawning events, probably triggered by specific water temperature patterns. tidal regime and {SST} seem to be the major environmental parameters that govern shell growth rhythms and/or increment thickness for two nearshore species-the {M}ytilidae {C}horomytilus chorus and the {V}eneridae {E}urhomalea rufa-which grow more slowly and have a life span longer than {A}. purpuratus, and have a strong potential for paleo-environmental and paleo-{E}l {N}ino southern oscillation reconstruction. {T}hese results need to be confirmed studying multiple shells to quantify individual growth variations and to enhance the significance of the findings on the different environmental parameters recorded in the growth patterns of the {S}outh {A}merican bivalve species studied.},
  keywords = {{S}clerochronology ; {B}ivalve ; {H}umboldt {C}urrent {S}ystem ; {C}hile ; {P}eru ; {E}l {N}ino ; {S}outhern {O}scillation ; {C}oastal trapped waves ; {U}pwelling ; {CHILI} ; {PEROU} ; {PACIFIQUE}},
  booktitle = {},
  journal = {{J}ournal of {S}hellfish {R}esearch},
  volume = {32},
  numero = {3},
  pages = {867--882},
  ISSN = {0730-8000},
  year = {2013},
  DOI = {10.2983/035.032.0331},
  URL = {https://www.documentation.ird.fr/hor/fdi:010061810},
}