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| Main Authors: | , , , |
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| Format: | Dataset Open Access |
| Language: | en |
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PANGAEA
2014
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| Subjects: | |
| Online Access: | https://doi.org/10.1594/PANGAEA.825021 |
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| _version_ | 1867170036337082368 |
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| author | Zervoudaki, Soultana Frangoulis, Constantin Giannoudi, Louisa Krasakopoulou, Evangelia |
| author_facet | Zervoudaki, Soultana Frangoulis, Constantin Giannoudi, Louisa Krasakopoulou, Evangelia |
| collection | Datos científicos de ciencias marinas y ambientales |
| contents | This study includes the first information on the combined effect of low pH and raised temperature on egg production rate (EP), hatching success (HS), excretion and respiration of the Mediterranean copepod Acartia clausi. Adult individuals of A. clausi and fresh surface seawater were collected at a coastal station in Saronikos Gulf during April 2012. Four different conditions were applied: two different pH levels (present: 8.09 and future: 7.83) at two temperature values (present: 16°C and present+4 °C= 20°C). EP and HS success decreased significantly over the duration of exposure at future pH at both temperature conditions. However, the analysis of the combined effect of pH, T, chlorophyll a and the duration of the experiments on EP and HS revealed that ocean acidification had no discernible effect, whereas warming; food and the duration of exposure were more significant for the reproductive output of A. clausi. Temperature appeared to have a positive effect on respiration and excretion. Acidification had no clear effect on respiration, but a negative effect on the A. clausi excretion was observed. Acidification and warming resulted in the increase of the excretion rate and the increase was higher than that observed by warming only. Our findings showed that a direct effect of ocean acidification on copepod's vital rates was not obvious, except maybe in the case of excretion. Therefore, the combination of acidification with the ambient oligotrophic conditions and the warming could result in species being less able to allocate resources for coping with multiple stressors. |
| format | Dataset Open Access |
| id | pangaea_https___doi_org_10_1594_PANGAEA_825021 |
| institution | PANGAEA |
| language | en |
| publishDate | 2014 |
| publisher | PANGAEA |
| record_format | pangaea |
| spellingShingle | Seawater carbonate chemistry and egg production, hatching and metabolic rates of a Mediterranean copepod species (Acartia clausi) in a laboratory experiment Zervoudaki, Soultana Frangoulis, Constantin Giannoudi, Louisa Krasakopoulou, Evangelia Acartia clausi; Alkalinity, total; Ammonia excretion per individual; Ammonium, excretion, standard deviation; Animalia; Aragonite saturation state; Arthropoda; Bicarbonate ion; Bottles or small containers/Aquaria (<20 L); Calcite saturation state; Calculated using seacarb; 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; Coulometric titration; Egg production rate, standard deviation; Egg production rate per female; Fugacity of carbon dioxide (water) at sea surface temperature (wet air); Hatching rate; Hatching rate, standard deviation; Identification; Light:Dark cycle; Mediterranean Sea; Mediterranean Sea Acidification in a Changing Climate; MedSeA; OA-ICC; Ocean acidification; Ocean Acidification International Coordination Centre; Other metabolic rates; Partial pressure of carbon dioxide (water) at sea surface temperature (wet air); Pelagos; pH, total scale; Potentiometric; Reproduction; Respiration; Respiration rate, oxygen, per individual; Respiration rate, oxygen, standard deviation; Salinity; Single species; Species; Temperate; Temperature; Temperature, water; Treatment; Zooplankton This study includes the first information on the combined effect of low pH and raised temperature on egg production rate (EP), hatching success (HS), excretion and respiration of the Mediterranean copepod Acartia clausi. Adult individuals of A. clausi and fresh surface seawater were collected at a coastal station in Saronikos Gulf during April 2012. Four different conditions were applied: two different pH levels (present: 8.09 and future: 7.83) at two temperature values (present: 16°C and present+4 °C= 20°C). EP and HS success decreased significantly over the duration of exposure at future pH at both temperature conditions. However, the analysis of the combined effect of pH, T, chlorophyll a and the duration of the experiments on EP and HS revealed that ocean acidification had no discernible effect, whereas warming; food and the duration of exposure were more significant for the reproductive output of A. clausi. Temperature appeared to have a positive effect on respiration and excretion. Acidification had no clear effect on respiration, but a negative effect on the A. clausi excretion was observed. Acidification and warming resulted in the increase of the excretion rate and the increase was higher than that observed by warming only. Our findings showed that a direct effect of ocean acidification on copepod's vital rates was not obvious, except maybe in the case of excretion. Therefore, the combination of acidification with the ambient oligotrophic conditions and the warming could result in species being less able to allocate resources for coping with multiple stressors. |
| title | Seawater carbonate chemistry and egg production, hatching and metabolic rates of a Mediterranean copepod species (Acartia clausi) in a laboratory experiment |
| topic | Acartia clausi; Alkalinity, total; Ammonia excretion per individual; Ammonium, excretion, standard deviation; Animalia; Aragonite saturation state; Arthropoda; Bicarbonate ion; Bottles or small containers/Aquaria (<20 L); Calcite saturation state; Calculated using seacarb; 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; Coulometric titration; Egg production rate, standard deviation; Egg production rate per female; Fugacity of carbon dioxide (water) at sea surface temperature (wet air); Hatching rate; Hatching rate, standard deviation; Identification; Light:Dark cycle; Mediterranean Sea; Mediterranean Sea Acidification in a Changing Climate; MedSeA; OA-ICC; Ocean acidification; Ocean Acidification International Coordination Centre; Other metabolic rates; Partial pressure of carbon dioxide (water) at sea surface temperature (wet air); Pelagos; pH, total scale; Potentiometric; Reproduction; Respiration; Respiration rate, oxygen, per individual; Respiration rate, oxygen, standard deviation; Salinity; Single species; Species; Temperate; Temperature; Temperature, water; Treatment; Zooplankton |
| url | https://doi.org/10.1594/PANGAEA.825021 |