Publication Date:
2024-03-15
Description:
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.
Keywords:
Alkalinity, total; Aragonite saturation state; Benthos; Bicarbonate ion; Biotic Habitat Profile ratio; Biotic Habitat Profile ratio, standard deviation; Calcite saturation state; Calculated using CO2SYS; Calculated using seacarb after Nisumaa et al. (2010); Canopy height; Canopy height, standard deviation; Carbon, inorganic, dissolved; Carbonate ion; Carbonate system computation flag; Carbon dioxide; CO2 vent; Coast and continental shelf; Community composition and diversity; Coverage; Coverage, standard deviation; Entire community; EXP; Experiment; Field observation; Fish; Fish, standard deviation; Fugacity of carbon dioxide (water) at sea surface temperature (wet air); Location; North Pacific; OA-ICC; Ocean Acidification International Coordination Centre; Partial pressure of carbon dioxide, standard deviation; Partial pressure of carbon dioxide (water) at sea surface temperature (wet air); Pelagos; pH; pH, standard deviation; Potentiometric; Potentiometric titration; Replicates; Rocky-shore community; Salinity; Salinity, standard deviation; Season; Shikine; Site; Species richness; Species richness, standard deviation; Temperate; Temperature, water; Temperature, water, standard deviation; Transect; Type
Type:
Dataset
Format:
text/tab-separated-values, 892 data points
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