hrvatski jezikClear Cookie - decide language by browser settings

Successful acclimation of marine diatoms Chaetoceros curvisetus/pseudocurvisetus to climate change

Vrana, Ivna; Gašparović, Blaženka; Geček, Sunčana; Godrijan, Jelena; Novak, Tihana; Kazazić, Snježana P.; Mlakar, Marina; Kužat, Nataša; Pfannkuchen, Martin; Marić Pfannkuchen, Daniela (2023) Successful acclimation of marine diatoms Chaetoceros curvisetus/pseudocurvisetus to climate change. Limnology and oceanography . ISSN 0024-3590

PDF - Published Version - article
Available under License Creative Commons Attribution.

Download (1MB) | Preview


Two main parameters that structure the marine ecosystem by affecting species distribution, abundance, community structure, timing of major life cycle events, and trophic state of the ecosystem are temperature and nutrient availability. Faced with climate change, eukaryotic plankton cope at multiple levels through physiological accommodation, adaptive evolution, shift in time and/or space of habitat, and/or community responses. Thirtytwo years of our phytoplankton research indicate that Chaetoceros curvisetus/pseudocurvisetus adjust to climate change more successfully than the majority of the accompanying phytoplankton taxa in the mesotrophic part of the NW Adriatic Sea, the Mediterranean. While the abundance of the entire accompanying phytoplankton community has decreased significantly since 2003 (the period of the northern Adriatic warming and oligotrophication) compared to the previous period (1986–2003), the abundance of C. curvisetus/pseudocurvisetus remained unchanged, while its contribution to the community increased significantly. Accommodation strategies include a change in the timing of high abundance and blooms in the surface layer and successful blooming in the deeper layers during warm months. Apart from the observed in situ accommodation, physiological acclimation to warming may involve changes in photosynthesis, respiration, growth, and cell biochemistry. Here, we conducted laboratory experiments with C. pseudocurvisetus to investigate how warming affects its biochemical response through the fatty acid remodeling of phospholipid classes. Long-term field observations and short-term laboratory experiments suggest that marine diatoms C. curvisetus/pseudocurvisetus are potential global winners with the ability to acclimate/adapt to climate change.

Item Type: Article
Uncontrolled Keywords: marine diatom ; global change ; global warming ; oligotrophication ; phospholipids ; remodelling ; temperature stress ; northern Adriatic Sea
Subjects: NATURAL SCIENCES > Interdisciplinary Natural Sciences
NATURAL SCIENCES > Interdisciplinary Natural Sciences > Marine Science
Divisions: Division for Marine and Enviromental Research
Project titleProject leaderProject codeProject type
Utjecaj okolišnog stresa na pojavnost i međudjelovanje biološki važnih organskih molekula i mikronutrijenata u morskom ekosustavuGašparović, BlaženkaIP-2013-11-8607HRZZ
Životne strategije fitoplanktona u sjevernom JadranuPfannkuchen, MartinUIP-2014-09-6563HRZZ
Molekularne životne strategije fitoplanktona u JadranuMarić Pfannkuchen, DanielaUIP-2020-02-7868HRZZ
Depositing User: Blaženka Gašparović
Date Deposited: 14 Jun 2023 12:53
DOI: 10.1002/lno.12293

Actions (login required)

View Item View Item


Downloads per month over past year

Increase Font
Decrease Font
Dyslexic Font