@article{fdi:010067788, title = {{E}levated colonization of microborers at a volcanically acidified coral reef}, author = {{E}nochs, {I}. {C}. and {M}anzello, {D}. {P}. and {T}ribollet, {A}line and {V}alentino, {L}. and {K}olodziej, {G}. and {D}onham, {E}. {M}. and {F}itchett, {M}. {D}. and {C}arlton, {R}. and {P}rice, {N}. {N}.}, editor = {}, language = {{ENG}}, abstract = {{E}xperiments have demonstrated that ocean acidification ({OA}) conditions projected to occur by the end of the century will slow the calcification of numerous coral species and accelerate the biological erosion of reef habitats (bioerosion). {M}icroborers, which bore holes less than 100 mu m diameter, are one of the most pervasive agents of bioerosion and are present throughout all calcium carbonate substrates within the reef environment. {T}he response of diverse reef functional groups to {OA} is known from real-world ecosystems, but to date our understanding of the relationship between ocean p{H} and carbonate dissolution by microborers is limited to controlled laboratory experiments. {H}ere we examine the settlement of microborers to pure mineral calcium carbonate substrates (calcite) along a natural p{H} gradient at a volcanically acidified reef at {M}aug, {C}ommonwealth of the {N}orthern {M}ariana {I}slands ({CNMI}). {C}olonization of pioneer microborers was higher in the lower p{H} waters near the vent field. {D}epth of microborer penetration was highly variable both among and within sites (4.2-195.5 mu m) over the short duration of the study (3 mo.) and no clear relationship to increasing {CO}2 was observed. {C}alculated rates of biogenic dissolution, however, were highest at the two sites closer to the vent and were not significantly different from each other. {T}hese data represent the first evidence of {OA}-enhancement of microboring flora colonization in newly available substrates and provide further evidence that microborers, especially bioeroding chlorophytes, respond positively to low p{H}. {T}he accelerated breakdown and dissolution of reef framework structures with {OA} will likely lead to declines in structural complexity and integrity, as well as possible loss of essential habitat.}, keywords = {{PACIFIQUE} ; {MARIANNES} ; {MAUG} {ILE}}, booktitle = {}, journal = {{P}los {O}ne}, volume = {11}, numero = {7}, pages = {e0159818 [16 p.]}, ISSN = {1932-6203}, year = {2016}, DOI = {10.1371/journal.pone.0159818}, URL = {https://www.documentation.ird.fr/hor/fdi:010067788}, }