Articles | Volume 4-osr8
https://doi.org/10.5194/sp-4-osr8-15-2024
https://doi.org/10.5194/sp-4-osr8-15-2024
30 Sep 2024
 | OSR8 | Chapter 4.3
 | 30 Sep 2024 | OSR8 | Chapter 4.3

Anomalous 2022 deep-water formation and intense phytoplankton bloom in the Cretan area

Anna Teruzzi, Ali Aydogdu, Carolina Amadio, Emanuela Clementi, Simone Colella, Valeria Di Biagio, Massimiliano Drudi, Claudia Fanelli, Laura Feudale, Alessandro Grandi, Pietro Miraglio, Andrea Pisano, Jenny Pistoia, Marco Reale, Stefano Salon, Gianluca Volpe, and Gianpiero Cossarini

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Cited articles

Auger, P. A., Ulses, C., Estournel, C., Stemmann, L., Somot, S., and Diaz, F.: Interannual control of plankton communities by deep winter mixing and prey/predator interactions in the NW Mediterranean: Results from a 30-year 3D modeling study, Prog. Oceanogr., 124, 12–27, https://doi.org/10.1016/j.pocean.2014.04.004, 2014. 
C3S monthly climate bulletin explorer: https://cds.climate.copernicus.eu/cdsapp#!/software/app-c3s-monthly-climate-bulletin-explorer?tab=app, last access: 28 July 2023. 
Canu, D., Rosati, G., Cossarini, G., Laurent, C., Bolzon, G., and Solidoro, C.: Winter nutrient content as a basic proxy of ocean fertility, in: Copernicus Ocean State Report, Issue 6, J. Oper. Oceanogr., 15, s133–s138, https://doi.org/10.1080/1755876X.2022.2095169, 2022. 
Civitarese, G. and Gacic, M.: Had the Eastern Mediterranean Transient an impact on the new production in the southern Adriatic?, Geophys. Res. Lett., 28, 1627–1630, https://doi.org/10.1029/2000GL012079, 2001. 
Colella, S., Brando, V. E., Di Cicco, A., D'Alimonte, D., Forneris, V., and Bracaglia, M.: EU Copernicus Marine Service Quality Information Document for the Mediterranean Sea Ocean Colour Plankton, Reflectance, Transparency and Optics L3 MY daily observations, OCEANCOLOUR_MED_BGC_L3_NRT_009_143, Issue 3.0, Mercator Ocean International, https://catalogue.marine.copernicus.eu/documents/QUID/CMEMS-OC-QUID-009-141to144-151to154.pdf (last access: 17 July 2024), 2023a. 
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Short summary
A noticeable cold spell occurred in Eastern Europe at the beginning of 2022 and was the main driver of intense deep-water formation and the associated transport of nutrients to the surface. Southeast of Crete, the availability of both light and nutrients in the surface layer stimulated an anomalous phytoplankton bloom. In the area, chlorophyll concentration (a proxy for bloom intensity) and primary production were considerably higher than usual, suggesting possible impacts on fishery catches.
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