Acclimatization to high-variance habitats does not enhance physiological tolerance of two key Caribbean corals to future temperature and pH
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| Format: | Dataset Open Access |
| Langue: | en |
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PANGAEA
2016
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| _version_ | 1867171840975175680 |
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| author | Camp, Emma F Smith, David J Evenhuis, Chris Enochs, Ian C Manzello, Derek P Woodcock, Stephen Suggett, David J |
| author_facet | Camp, Emma F Smith, David J Evenhuis, Chris Enochs, Ian C Manzello, Derek P Woodcock, Stephen Suggett, David J |
| collection | Datos científicos de ciencias marinas y ambientales |
| contents | Corals are acclimatized to populate dynamic habitats that neighbour coral reefs. Habitats such as seagrass beds exhibit broad diel changes in temperature and pH that routinely expose corals to conditions predicted for reefs over the next 50-100 years. However, whether such acclimatization effectively enhances physiological tolerance to, and hence provides refuge against, future climate scenarios remains unknown. Also, whether corals living in low-variance habitats can tolerate present-day high-variance conditions remains untested. We experimentally examined how pH and temperature predicted for the year 2100 affects the growth and physiology of two dominant Caribbean corals (Acropora palmata and Porites astreoides) native to habitats with intrinsically low (outer-reef terrace, LV) and/or high (neighbouring seagrass, HV) environmental variance. Under present-day temperature and pH, growth and metabolic rates (calcification, respiration and photosynthesis) were unchanged for HV versus LV populations. Superimposing future climate scenarios onto the HV and LV conditions did not result in any enhanced tolerance to colonies native to HV. Calcification rates were always lower for elevated temperature and/or reduced pH. Together, these results suggest that seagrass habitats may not serve as refugia against climate change if the magnitude of future temperature and pH changes is equivalent to neighbouring reef habitats. |
| format | Dataset Open Access |
| id | pangaea_https___doi_org_10_1594_PANGAEA_861875 |
| institution | PANGAEA |
| language | en |
| publishDate | 2016 |
| publisher | PANGAEA |
| record_format | pangaea |
| spellingShingle | Acclimatization to high-variance habitats does not enhance physiological tolerance of two key Caribbean corals to future temperature and pH Camp, Emma F Smith, David J Evenhuis, Chris Enochs, Ian C Manzello, Derek P Woodcock, Stephen Suggett, David J Acropora palmata; Alkalinity, total; Alkalinity, total, standard error; Animalia; Aragonite saturation state; Aragonite saturation state, standard error; Benthic animals; Benthos; Bicarbonate ion; Bottles or small containers/Aquaria (<20 L); Calcification/Dissolution; Calcification rate, standard error; Calcification rate of calcium carbonate; Calcite saturation state; Calculated using seacarb after Nisumaa et al. (2010); Carbon, inorganic, dissolved; Carbonate ion; Carbonate system computation flag; Carbon dioxide; Cnidaria; Coast and continental shelf; Event label; EXP; Experiment; Fugacity of carbon dioxide (water) at sea surface temperature (wet air); Group; Laboratory experiment; Little_Cayman_lagoon; Little_Cayman_reef; Net photosynthesis rate, oxygen; Net photosynthesis rate, oxygen, standard error; North Atlantic; OA-ICC; Ocean acidification; Ocean Acidification International Coordination Centre; Partial pressure of carbon dioxide (water) at sea surface temperature (wet air); Partial pressure of carbon dioxide (water) at sea surface temperature (wet air), standard error; pH, standard error; pH, total scale; Porites astreoides; Primary production/Photosynthesis; Registration number of species; Respiration; Respiration rate, oxygen; Respiration rate, oxygen, standard error; Salinity; Salinity, standard error; Single species; Species; Temperature; Temperature, water; Temperature, water, standard error; Treatment; Tropical; Type; Uniform resource locator/link to reference Corals are acclimatized to populate dynamic habitats that neighbour coral reefs. Habitats such as seagrass beds exhibit broad diel changes in temperature and pH that routinely expose corals to conditions predicted for reefs over the next 50-100 years. However, whether such acclimatization effectively enhances physiological tolerance to, and hence provides refuge against, future climate scenarios remains unknown. Also, whether corals living in low-variance habitats can tolerate present-day high-variance conditions remains untested. We experimentally examined how pH and temperature predicted for the year 2100 affects the growth and physiology of two dominant Caribbean corals (Acropora palmata and Porites astreoides) native to habitats with intrinsically low (outer-reef terrace, LV) and/or high (neighbouring seagrass, HV) environmental variance. Under present-day temperature and pH, growth and metabolic rates (calcification, respiration and photosynthesis) were unchanged for HV versus LV populations. Superimposing future climate scenarios onto the HV and LV conditions did not result in any enhanced tolerance to colonies native to HV. Calcification rates were always lower for elevated temperature and/or reduced pH. Together, these results suggest that seagrass habitats may not serve as refugia against climate change if the magnitude of future temperature and pH changes is equivalent to neighbouring reef habitats. |
| title | Acclimatization to high-variance habitats does not enhance physiological tolerance of two key Caribbean corals to future temperature and pH |
| topic | Acropora palmata; Alkalinity, total; Alkalinity, total, standard error; Animalia; Aragonite saturation state; Aragonite saturation state, standard error; Benthic animals; Benthos; Bicarbonate ion; Bottles or small containers/Aquaria (<20 L); Calcification/Dissolution; Calcification rate, standard error; Calcification rate of calcium carbonate; Calcite saturation state; Calculated using seacarb after Nisumaa et al. (2010); Carbon, inorganic, dissolved; Carbonate ion; Carbonate system computation flag; Carbon dioxide; Cnidaria; Coast and continental shelf; Event label; EXP; Experiment; Fugacity of carbon dioxide (water) at sea surface temperature (wet air); Group; Laboratory experiment; Little_Cayman_lagoon; Little_Cayman_reef; Net photosynthesis rate, oxygen; Net photosynthesis rate, oxygen, standard error; North Atlantic; OA-ICC; Ocean acidification; Ocean Acidification International Coordination Centre; Partial pressure of carbon dioxide (water) at sea surface temperature (wet air); Partial pressure of carbon dioxide (water) at sea surface temperature (wet air), standard error; pH, standard error; pH, total scale; Porites astreoides; Primary production/Photosynthesis; Registration number of species; Respiration; Respiration rate, oxygen; Respiration rate, oxygen, standard error; Salinity; Salinity, standard error; Single species; Species; Temperature; Temperature, water; Temperature, water, standard error; Treatment; Tropical; Type; Uniform resource locator/link to reference |
| url | https://doi.org/10.1594/PANGAEA.861875 |