Effects of low pH and raised temperature on egg production, hatching and metabolic rates of a Mediterranean copepod species (Acartia clausi) under oligotrophic conditions
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 c...
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ftektojs:oai:ojs.pkp.sfu.ca:article/12496 2024-09-15T18:28:01+00:00 Effects of low pH and raised temperature on egg production, hatching and metabolic rates of a Mediterranean copepod species (Acartia clausi) under oligotrophic conditions ZERVOUDAKI, S. FRANGOULIS, C. GIANNOUDI, L. KRASAKOPOULOU, E. 2013-09-10 application/pdf https://ejournals.epublishing.ekt.gr/index.php/hcmr-med-mar-sc/article/view/12496 eng eng Hellenic Centre for Marine Research https://ejournals.epublishing.ekt.gr/index.php/hcmr-med-mar-sc/article/view/12496/12388 https://ejournals.epublishing.ekt.gr/index.php/hcmr-med-mar-sc/article/view/12496 Mediterranean Marine Science; Τόμ. 15 Αρ. 1 (2014); 74-83 Mediterranean Marine Science; Vol. 15 No. 1 (2014); 74-83 1791-6763 1108-393X Acidification egg production respiration excretion Acartia clausi Mediterranean Sea info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion 2013 ftektojs 2024-07-18T03:59:06Z 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 α 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. Article in Journal/Newspaper Ocean acidification EKT ePublishing (National Documentation Centre, Greece) |
institution |
Open Polar |
collection |
EKT ePublishing (National Documentation Centre, Greece) |
op_collection_id |
ftektojs |
language |
English |
topic |
Acidification egg production respiration excretion Acartia clausi Mediterranean Sea |
spellingShingle |
Acidification egg production respiration excretion Acartia clausi Mediterranean Sea ZERVOUDAKI, S. FRANGOULIS, C. GIANNOUDI, L. KRASAKOPOULOU, E. Effects of low pH and raised temperature on egg production, hatching and metabolic rates of a Mediterranean copepod species (Acartia clausi) under oligotrophic conditions |
topic_facet |
Acidification egg production respiration excretion Acartia clausi Mediterranean Sea |
description |
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 α 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 |
Article in Journal/Newspaper |
author |
ZERVOUDAKI, S. FRANGOULIS, C. GIANNOUDI, L. KRASAKOPOULOU, E. |
author_facet |
ZERVOUDAKI, S. FRANGOULIS, C. GIANNOUDI, L. KRASAKOPOULOU, E. |
author_sort |
ZERVOUDAKI, S. |
title |
Effects of low pH and raised temperature on egg production, hatching and metabolic rates of a Mediterranean copepod species (Acartia clausi) under oligotrophic conditions |
title_short |
Effects of low pH and raised temperature on egg production, hatching and metabolic rates of a Mediterranean copepod species (Acartia clausi) under oligotrophic conditions |
title_full |
Effects of low pH and raised temperature on egg production, hatching and metabolic rates of a Mediterranean copepod species (Acartia clausi) under oligotrophic conditions |
title_fullStr |
Effects of low pH and raised temperature on egg production, hatching and metabolic rates of a Mediterranean copepod species (Acartia clausi) under oligotrophic conditions |
title_full_unstemmed |
Effects of low pH and raised temperature on egg production, hatching and metabolic rates of a Mediterranean copepod species (Acartia clausi) under oligotrophic conditions |
title_sort |
effects of low ph and raised temperature on egg production, hatching and metabolic rates of a mediterranean copepod species (acartia clausi) under oligotrophic conditions |
publisher |
Hellenic Centre for Marine Research |
publishDate |
2013 |
url |
https://ejournals.epublishing.ekt.gr/index.php/hcmr-med-mar-sc/article/view/12496 |
genre |
Ocean acidification |
genre_facet |
Ocean acidification |
op_source |
Mediterranean Marine Science; Τόμ. 15 Αρ. 1 (2014); 74-83 Mediterranean Marine Science; Vol. 15 No. 1 (2014); 74-83 1791-6763 1108-393X |
op_relation |
https://ejournals.epublishing.ekt.gr/index.php/hcmr-med-mar-sc/article/view/12496/12388 https://ejournals.epublishing.ekt.gr/index.php/hcmr-med-mar-sc/article/view/12496 |
_version_ |
1810469327600615424 |