@article{fdi:010072366,
  title = {{L}imited carbonate dissolution by boring microflora at two volcanically acidified temperate sites : {I}schia ({I}taly, {M}editerranean {S}ea) and {F}aial ({A}zores, {NE} {A}tlantic {O}cean)},
  author = {{T}ribollet, {A}line and {G}range, {J}. {S}. and {P}arra, {H}. and {R}odolfo-{M}etalpa, {R}iccardo and {C}arreiro-{S}ilva, {M}.},
  editor = {},
  language = {{ENG}},
  abstract = {{I}n situ effects of ocean acidification on carbonate dissolution by microboring flora, also called biogenic dissolution, have only been studied once in tropical environments. {N}aturally acidified seawaters due to {CO}2 vents offer a perfect setting to study these effects in temperate systems. {T}hree sites were selected at {I}schia ({I}taly, {M}editerranean {S}ea) with one experiencing ambient p{H} and the two others a mean p{H}({T}) of 7.2 and 7.5. {A}t {F}aial ({A}zores, {NE} {A}tlantic), one site with ambient p{H} and one acidified site with a mean p{H}({T}) of 7.4 were selected. {E}xperiments were carried out during 1.5 months and 6 months in {A}zores and {I}schia, respectively, to determine the effects of {OA} on microboring communities in various carbonate substrates. {L}ow p{H} influenced negatively boring microflora development by limiting their depth of penetration and abundance in substrates. {B}iogenic dissolution was thus reduced by a factor 3 to 7 depending on sites and substrate types. {A}t sites with ambient p{H} in {F}aial, biogenic dissolution contributed up to 23% to the total weight loss, while it contributed less than 1% to the total weight loss of substrates at the acidified sites. {M}ost of the dissolution at these sites was due to chemical dissolution (often {O}mega <= 1). {S}uch conditions maintained microboring communities at a pioneer stage with a limited depth of penetration in substrates. {O}ur results, together with previous findings that showed an increase of biogenic dissolution at p{H}>7.7, suggest that there is a p{H} tipping point below which microborer development and thus carbonate biogenic dissolution is strongly limited.},
  keywords = {{ZONE} {TEMPEREE} ; {CO}2 vents ; aragonite and calcite substrates ; boring microalgae ; biogenic ; dissolution ; temperate ecosystems ; {MEDITERRANEE} ; {ITALIE} ; {ATLANTIQUE} ; {ACORES}},
  booktitle = {},
  journal = {{G}lobal {B}iogeochemical {C}ycles},
  volume = {32},
  numero = {1},
  pages = {78--91},
  ISSN = {0886-6236},
  year = {2018},
  DOI = {10.1002/2016gb005575},
  URL = {https://www.documentation.ird.fr/hor/fdi:010072366},
}