<abstract xmlns="http://www.w3.org/1999/xhtml">

Pteropods are marine pelagic calcifier mollusks sensitive to chemical changes in seawater due to their highly soluble aragonite shells. Increased acidity (reduced pH) of seawater causes difficulties in precipitating their shells and/or results in their dissolution, which is related to increased atmospheric CO2 concentrations and warming of seawater. They are therefore indicators of environmental changes. In this paper, we present the first record of the straight-needle pteropod <italic>Creseis acicula</italic> Rang, 1828 bloom in the surface waters of the Ҫanakkale Strait, Turkey (NE Aegean Sea), encountered in July 2020, when the highest sea surface temperatures and pH levels since 2007 were recorded. In coastal zones, such as the Ҫanakkale Strait, anthropogenic activity contributes significantly to environmental changes. Consequently, the increase in pH at elevated temperatures indicates an auxiliary factor (i.e. anthropogenic activity) that triggered the <italic>C. acicula</italic> bloom, rather than global atmospheric CO2 levels.
</abstract>

Pteropods are marine pelagic calcifier mollusks sensitive to chemical changes in seawater due to their highly soluble aragonite shells. Increased acidity (reduced pH) of seawater causes difficulties in precipitating their shells and/or results in their dissolution, which is related to increased atmospheric CO2 concentrations and warming of seawater. They are therefore indicators of environmental changes. In this paper, we present the first record of the straight-needle pteropod Creseis acicula Rang, 1828 bloom in the surface waters of the Ҫanakkale Strait, Turkey (NE Aegean Sea), encountered in July 2020, when the highest sea surface temperatures and pH levels since 2007 were recorded. In coastal zones, such as the Ҫanakkale Strait, anthropogenic activity contributes significantly to environmental changes. Consequently, the increase in pH at elevated temperatures indicates an auxiliary factor (i.e. anthropogenic activity) that triggered the C. acicula bloom, rather than global atmospheric CO2 levels.

First record of straight-needle pteropod <italic>Creseis acicula</italic> Rang, 1828 bloom in the Çanakkale Strait (NE Aegean Sea, Turkey)

Department of Marine Biology, Faculty of Marine Science and Technology

Department of Fishing and Fish Processing Technology Çanakkale Onsekiz Mart University

Department of Chemistry, Faculty of Science and Arts

Department of Chemistry and Chemical Processing Technologies, Lapseki Vocational School

Oceanological and Hydrobiological Studies

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

First record of straight-needle pteropod  Rang, 1828 bloom in the Çanakkale Strait (NE Aegean Sea, Turkey)

Pteropods are marine pelagic calcifier mollusks sensitive to chemical changes in seawater due to their highly soluble aragonite shells. Increased acidity...

First record of straight-needle pteropod Creseis acicula Rang, 1828 bloom in the Çanakkale Strait (NE Aegean Sea, Turkey)

Article Category: Original research paper

Published Online: Sep 02, 2021

Page range: 310 - 324

Received: Nov 30, 2020

Accepted: Feb 01, 2021

DOI: https://doi.org/10.2478/oandhs-2021-0026

Keywords
pteropod, Çanakkale Strait, marine ecology, bloom, anthropogenic impact

© 2021 Sezginer Tunçer et al., published by Sciendo

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

First record of straight-needle pteropod Creseis acicula Rang, 1828 bloom in the Çanakkale Strait (NE Aegean Sea, Turkey)

Article Category: Original research paper

Published Online: Sep 02, 2021

Page range: 310 - 324

Received: Nov 30, 2020

Accepted: Feb 01, 2021

DOI: https://doi.org/10.2478/oandhs-2021-0026

Keywordspteropod, Çanakkale Strait, marine ecology, bloom, anthropogenic impact

© 2021 Sezginer Tunçer et al., published by Sciendo

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

Keywords
pteropod, Çanakkale Strait, marine ecology, bloom, anthropogenic impact