Seawater carbonate chemistry and marine fouling species abundances and counts from the insides of the mesocosms
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| Format: | Dataset Open Access |
| Langue: | en |
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PANGAEA
2023
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| _version_ | 1867169155989372928 |
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| author | Brown, Norah E M Bernhardt, Joey R Harley, Christopher D G |
| author_facet | Brown, Norah E M Bernhardt, Joey R Harley, Christopher D G |
| collection | Datos científicos de ciencias marinas y ambientales |
| contents | Physiological responses to ocean acidification are thought to be related to energetic trade‐offs. Although a number of studies have proposed that negative responses to low pH could be minimized in situations where food resources are more readily available, evidence for such effects on individuals remain mixed, and the consequences of such effects at the community level remain untested. We explored the potential for food availability and diet quality to modify the effects of acidification on developing marine fouling communities in field‐deployed mesocosms by supplementing natural food supply with one of two species of phytoplankton, differing in concentration of fatty acids. After twelve weeks, no species demonstrated the interactive effects generally predicted in the literature, where a positive overall effect of diet mitigated the negative overall effects of acidification. Rather, for some species, additional food supply appeared to bring out or exacerbate the negative effects of low pH. Community richness and structure were only altered by acidification, while space occupation and evenness reflected patterns of the most dominant species. Importantly, we find that acidification stress can increase the relative abundance of invasive species, even under resource conditions that otherwise prevented invasive species establishment. Overall, the proposed hypothesis regarding the ability for food addition to mitigate the negative effects of acidification is thus far not widely supported at species or community levels. It is clear that acidification is a strong driving force in these communities but understanding underlying energetic and competitive context is essential to developing mechanistic predictions for climate change responses. |
| format | Dataset Open Access |
| id | pangaea_https___doi_org_10_1594_PANGAEA_960627 |
| institution | PANGAEA |
| language | en |
| publishDate | 2023 |
| publisher | PANGAEA |
| record_format | pangaea |
| spellingShingle | Seawater carbonate chemistry and marine fouling species abundances and counts from the insides of the mesocosms Brown, Norah E M Bernhardt, Joey R Harley, Christopher D G Alkalinity, total; Alkalinity, total, standard deviation; Aragonite saturation state; Aragonite saturation state, standard deviation; Benthos; Bicarbonate ion; Bicarbonate ion, standard deviation; Calcite saturation state; Calcite saturation state, standard deviation; Calculated using CO2SYS; Calculated using seacarb after Nisumaa et al. (2010); Carbon, inorganic, dissolved; Carbon, inorganic, dissolved, standard deviation; Carbonate ion; Carbonate system computation flag; Carbon dioxide; Coast and continental shelf; Community composition and diversity; Containers and aquaria (20-1000 L or < 1 m**2); Entire community; Evenness of species; EXP; Experiment; Experiment week; Field experiment; Fugacity of carbon dioxide (water) at sea surface temperature (wet air); Individuals; Mesocosm label; North Pacific; OA-ICC; Ocean acidification; Ocean Acidification International Coordination Centre; Other; Partial pressure of carbon dioxide, standard deviation; Partial pressure of carbon dioxide (water) at sea surface temperature (wet air); pH, NBS scale; pH, standard deviation; pH, total scale; Port_Moody; Salinity; Salinity, standard deviation; Soft-bottom community; Species richness; Temperate; Temperature, water; Temperature, water, standard deviation; Treatment; Treatment: food; Type of study Physiological responses to ocean acidification are thought to be related to energetic trade‐offs. Although a number of studies have proposed that negative responses to low pH could be minimized in situations where food resources are more readily available, evidence for such effects on individuals remain mixed, and the consequences of such effects at the community level remain untested. We explored the potential for food availability and diet quality to modify the effects of acidification on developing marine fouling communities in field‐deployed mesocosms by supplementing natural food supply with one of two species of phytoplankton, differing in concentration of fatty acids. After twelve weeks, no species demonstrated the interactive effects generally predicted in the literature, where a positive overall effect of diet mitigated the negative overall effects of acidification. Rather, for some species, additional food supply appeared to bring out or exacerbate the negative effects of low pH. Community richness and structure were only altered by acidification, while space occupation and evenness reflected patterns of the most dominant species. Importantly, we find that acidification stress can increase the relative abundance of invasive species, even under resource conditions that otherwise prevented invasive species establishment. Overall, the proposed hypothesis regarding the ability for food addition to mitigate the negative effects of acidification is thus far not widely supported at species or community levels. It is clear that acidification is a strong driving force in these communities but understanding underlying energetic and competitive context is essential to developing mechanistic predictions for climate change responses. |
| title | Seawater carbonate chemistry and marine fouling species abundances and counts from the insides of the mesocosms |
| topic | Alkalinity, total; Alkalinity, total, standard deviation; Aragonite saturation state; Aragonite saturation state, standard deviation; Benthos; Bicarbonate ion; Bicarbonate ion, standard deviation; Calcite saturation state; Calcite saturation state, standard deviation; Calculated using CO2SYS; Calculated using seacarb after Nisumaa et al. (2010); Carbon, inorganic, dissolved; Carbon, inorganic, dissolved, standard deviation; Carbonate ion; Carbonate system computation flag; Carbon dioxide; Coast and continental shelf; Community composition and diversity; Containers and aquaria (20-1000 L or < 1 m**2); Entire community; Evenness of species; EXP; Experiment; Experiment week; Field experiment; Fugacity of carbon dioxide (water) at sea surface temperature (wet air); Individuals; Mesocosm label; North Pacific; OA-ICC; Ocean acidification; Ocean Acidification International Coordination Centre; Other; Partial pressure of carbon dioxide, standard deviation; Partial pressure of carbon dioxide (water) at sea surface temperature (wet air); pH, NBS scale; pH, standard deviation; pH, total scale; Port_Moody; Salinity; Salinity, standard deviation; Soft-bottom community; Species richness; Temperate; Temperature, water; Temperature, water, standard deviation; Treatment; Treatment: food; Type of study |
| url | https://doi.org/10.1594/PANGAEA.960627 |