6533b883fe1ef96bd12dc84d
RESEARCH PRODUCT
Seawater carbonate chemistry and fish communities properties off CO2 seeps in Japan
Carlo CattanoSylvain AgostiniBen P HarveyShigeki WadaFederico QuattrocchiGabriele TurcoKazuo InabaJason M Hall-spencerMarco Milazzosubject
Ocean Acidification International Coordination Centre (OA-ICC)TemperateSalinityCanopy heightCommunity composition and diversityCoverage standard deviationinorganicAlkalinityExperimentTemperature waterCarbon inorganic dissolvedCalculated using seacarb after Nisumaa et al 2010Aragonite saturation stateNorth PacificAlkalinity totaltotalCO2 ventReplicatespHPelagosTemperaturedissolvedCanopy height standard deviationCarbonate ionPartial pressure of carbon dioxide (water) at sea surface temperature (wet air)Fish standard deviationTemperature water standard deviationEarth System Researchstandard deviationField observationgeographic locationsPotentiometric titrationCoverageCalcite saturation stateLocationPotentiometricwaterPartial pressure of carbon dioxideSiteRocky-shore communityBenthosSpecies richness standard deviationSalinity standard deviationOcean Acidification International Coordination Centre OA ICCBiotic Habitat Profile ratioTypeBicarbonate ionCalculated using seacarb after Nisumaa et al. (2010)Calculated using CO2SYSfungiPartial pressure of carbon dioxide standard deviationCarbonate system computation flagpH standard deviationFugacity of carbon dioxide (water) at sea surface temperature (wet air)CarbonPartial pressure of carbon dioxide water at sea surface temperature wet airFishTransectCarbon dioxideRocky shore communityEntire communityBiotic Habitat Profile ratio standard deviationFugacity of carbon dioxide water at sea surface temperature wet airSeasonCoast and continental shelfSpecies richnessdescription
Ocean acidification will likely change the structure and function of coastal marine ecosystems over coming decades. Volcanic carbon dioxide seeps generate dissolved CO2 and pH gradients that provide realistic insights into the direction and magnitude of these changes. Here, we used fish and benthic community surveys to assess the spatio-temporal dynamics of fish community properties off CO2 seeps in Japan. Adding to previous evidence from ocean acidification ecosystem studies conducted elsewhere, our findings documented shifts from calcified to non-calcified habitats with reduced benthic complexity. In addition, we found that such habitat transition led to decreased diversity of associated fish and to selection of those fish species better adapted to simplified ecosystems dominated by algae. Our data suggest that near-future projected ocean acidification levels will oppose the ongoing range expansion of coral reef-associated fish due to global warming.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2020-01-01 |