Journal cover Journal topic
Biogeosciences An interactive open-access journal of the European Geosciences Union
Journal topic
Discussion papers
https://doi.org/10.5194/bg-2020-53
© Author(s) 2020. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/bg-2020-53
© Author(s) 2020. This work is distributed under
the Creative Commons Attribution 4.0 License.

Submitted as: research article 10 Mar 2020

Submitted as: research article | 10 Mar 2020

Review status
This preprint is currently under review for the journal BG.

Spring distribution of shelled pteropods across the Mediterranean Sea

Roberta Johnson1, Clara Manno2, and Patrizia Ziveri1,3 Roberta Johnson et al.
  • 1Institut de Ciència i Tecnologia Ambientals, Universitat Autònoma de Barcelona, Barcelona, Spain
  • 2The British Antarctic Survey, Cambridge, UK
  • 3Institució Catalana de Recerca i Estudis Avançats (ICREA), Barcelona, Spain

Abstract. Shelled pteropods represent an excellent sentinel for indicating exposure to ocean acidification (OA). Here, for the first time, we characterise spring pteropod distribution throughout the Mediterranean Sea, a region that has been identified as a climate change hot-spot. The presence of a west–east natural biogeochemical gradient makes this region a natural laboratory to investigate how the variability in environmental parameters may affect pteropod distribution. Results show that pteropod abundance is significantly higher in the eastern Mediterranean Sea where there is a higher aragonite saturation state (Ωar), showing that distribution is positively correlated with Ωar. We also observed a resilience of pteropods to higher temperatures and low nutrient conditions, including phosphorous limitation. The higher abundance of pteropods in ultra-oligotrophic conditions (eastern Mediterranean Sea) suggests that this organism can play an important role as the prime calcifying zooplankton within specific oligotrophic regions.

Roberta Johnson et al.

Interactive discussion

Status: open (until 21 Apr 2020)
Status: open (until 21 Apr 2020)
AC: Author comment | RC: Referee comment | SC: Short comment | EC: Editor comment
[Subscribe to comment alert] Printer-friendly Version - Printer-friendly version Supplement - Supplement

Roberta Johnson et al.

Roberta Johnson et al.

Viewed

Total article views: 163 (including HTML, PDF, and XML)
HTML PDF XML Total Supplement BibTeX EndNote
124 35 4 163 14 0 0
  • HTML: 124
  • PDF: 35
  • XML: 4
  • Total: 163
  • Supplement: 14
  • BibTeX: 0
  • EndNote: 0
Views and downloads (calculated since 10 Mar 2020)
Cumulative views and downloads (calculated since 10 Mar 2020)

Viewed (geographical distribution)

Total article views: 112 (including HTML, PDF, and XML) Thereof 112 with geography defined and 0 with unknown origin.
Country # Views %
  • 1
1
 
 
 
 

Cited

Saved

No saved metrics found.

Discussed

No discussed metrics found.
Latest update: 05 Apr 2020
Publications Copernicus
Download
Citation