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...
Published in: | Mediterranean Marine Science |
---|---|
Main Authors: | , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
Hellenic Centre for Marine Research
2013
|
Subjects: | |
Online Access: | https://doi.org/10.12681/mms.553 https://doaj.org/article/965a4afca9304fc8824387b5468f6ae8 |
id |
ftdoajarticles:oai:doaj.org/article:965a4afca9304fc8824387b5468f6ae8 |
---|---|
record_format |
openpolar |
spelling |
ftdoajarticles:oai:doaj.org/article:965a4afca9304fc8824387b5468f6ae8 2023-05-15T17:50:52+02:00 Effects of low pH and raised temperature on egg production, hatching and metabolic rates of a Mediterranean copepod species (Acartia clausi) under oligotrophic conditions S. ZERVOUDAKI C. FRANGOULIS L. GIANNOUDI E. KRASAKOPOULOU 2013-09-01T00:00:00Z https://doi.org/10.12681/mms.553 https://doaj.org/article/965a4afca9304fc8824387b5468f6ae8 EN eng Hellenic Centre for Marine Research https://ejournals.epublishing.ekt.gr/index.php/hcmr-med-mar-sc/article/view/12496 https://doaj.org/toc/1108-393X https://doaj.org/toc/1791-6763 1108-393X 1791-6763 doi:10.12681/mms.553 https://doaj.org/article/965a4afca9304fc8824387b5468f6ae8 Mediterranean Marine Science, Vol 15, Iss 1, Pp 74-83 (2013) Acidification egg production respiration excretion Acartia clausi Mediterranean Sea Aquaculture. Fisheries. Angling SH1-691 article 2013 ftdoajarticles https://doi.org/10.12681/mms.553 2022-12-31T15:54:08Z 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 Directory of Open Access Journals: DOAJ Articles Mediterranean Marine Science 15 1 74 |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
Acidification egg production respiration excretion Acartia clausi Mediterranean Sea Aquaculture. Fisheries. Angling SH1-691 |
spellingShingle |
Acidification egg production respiration excretion Acartia clausi Mediterranean Sea Aquaculture. Fisheries. Angling SH1-691 S. ZERVOUDAKI C. FRANGOULIS L. GIANNOUDI E. KRASAKOPOULOU 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 Aquaculture. Fisheries. Angling SH1-691 |
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 |
S. ZERVOUDAKI C. FRANGOULIS L. GIANNOUDI E. KRASAKOPOULOU |
author_facet |
S. ZERVOUDAKI C. FRANGOULIS L. GIANNOUDI E. KRASAKOPOULOU |
author_sort |
S. ZERVOUDAKI |
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://doi.org/10.12681/mms.553 https://doaj.org/article/965a4afca9304fc8824387b5468f6ae8 |
genre |
Ocean acidification |
genre_facet |
Ocean acidification |
op_source |
Mediterranean Marine Science, Vol 15, Iss 1, Pp 74-83 (2013) |
op_relation |
https://ejournals.epublishing.ekt.gr/index.php/hcmr-med-mar-sc/article/view/12496 https://doaj.org/toc/1108-393X https://doaj.org/toc/1791-6763 1108-393X 1791-6763 doi:10.12681/mms.553 https://doaj.org/article/965a4afca9304fc8824387b5468f6ae8 |
op_doi |
https://doi.org/10.12681/mms.553 |
container_title |
Mediterranean Marine Science |
container_volume |
15 |
container_issue |
1 |
container_start_page |
74 |
_version_ |
1766157778281299968 |