Ocean warming along temperate western boundaries of the Northern Hemisphere promotes an expansion of Cochlodinium polykrikoides blooms
Open accessAbstract
Since the early 1990s, ocean temperatures have increased and blooms of the icthyotoxic dinoflagellate Cochlodinium polykrikoides (a.k.a. Margalefidinium polykrikoides ) have become more widespread across the Northern Hemisphere. This study used high-resolution (1–30 km), satellite-based sea surface temperature records since 1982 to model trends in growth and bloom season length for strains of C. polykrikoides inhabiting North American and East Asian coastlines to understand how warming has altered blooms in these regions. Methods provided approximately 180× greater spatial resolution than previous studies of the impacts of warming on harmful algae, providing novel insight into near shore, coastal environments. Along the US East Coast, significant increases in potential growth rates and bloom season length for North American ribotypes were observed with bloom-favourable conditions becoming established earlier and persisting longer from Chesapeake Bay through Cape Cod, areas where blooms have become newly established and/or intensified this century. Within the Sea of Japan, modelled mean potential growth rates and bloom season length of East Asian ribotypes displayed a significant positive correlation with rising sea surface temperatures since 1982, a period during which observed maximal cell densities of C. polykrikoides blooms have significantly increased. Results suggest that warming has contributed, in part, to altering the phenology of C. polykrikoides populations, potentially expanding its realized niche in temperate zones of the Northern Hemisphere.
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Use of nighttime sea surface temperature retrievals can introduce a negative cold bias in the record, as diurnal solar heating can increase daily sea surface temperature by over 5°C, particularly in shallow, tidally mixed estuaries.
“However, use of nighttime retrievals can introduce a negative (cold) bias in the record, as diurnal solar heating can increase daily SST by over 5°C, particularly in shallow, tidally mixed estuaries (Griffith et al., 2019).”
From Warming and hypoxia reduce the performance and survival of northern bay scallops (<i>Argopecten irradians irradians</i>) amid a fishery collapse (2023) · cites this paper as Griffith et al., 2019
In §2, Material and methods (a), “Temperature records” (page not provided), the paper says night-time retrievals may induce a cold bias and reports slight underestimation of maximum daily temperatures in shallow, tidally mixed tributaries. It does not state that diurnal solar heating raises daily SST by over 5°C; that mechanism and magnitude are unsupported by our copy. (LLM, conf=0.88)
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Cited by
Sorted by citations
Harmful algal blooms: A climate change co-stressor in marine and freshwater ecosystems
Griffith, A. W., & Gobler, C. J. (2020) · Harmful Algae · doi:10.1016/j.hal.2019.03.008 · Cited by 598 · see citing works
Self-citationTomasetti, S. J., Hallinan, B. D., Tettelbach, S. T., Volkenborn, N., Doherty, O. W., Allam, B., & Gobler, C. J. (2023) · Global Change Biology · doi:10.1111/gcb.16575 · Cited by 58 · see citing works
“…harm fisheries, even if not as direct “stressors,” for instance via the promotion of harmful algal blooms (Díaz et al., 2019; Gobler et al., 2017; Griffith et al., 2019), the loss of seagrass habitat (Nyström et al., 2012; Strydom et al., 2020), or increased impacts of disease (Ford &…”
BackgroundSelf-citationUnderstanding controls on Margalefidinium polykrikoides blooms in the lower Chesapeake Bay
Hofmann, E. E., Klinck, J. M., Filippino, K. C., Egerton, T., Davis, L. B., Echevarría, M., Pérez-Vega, E., & Mulholland, M. R. (2021) · Harmful Algae · doi:10.1016/j.hal.2021.102064 · Cited by 18 · see citing works
- Authors
- Griffith, A. W., Doherty, O. M., & Gobler, C. J.
- Affiliations
- University of Southern California (US)
- Eagle Rock Analytics, Sacramento, CA 95820, USA
- Stony Brook University (US)
- Corresponding author
- Gobler, Christopher J.
- Venue
- Proceedings of the Royal Society B: Biological Sciences
- Publisher
- The Royal Society
- Published
- 2019-06-05
- Volume
- 286
- Issue
- 1904
- Pages
- 20190340
- ISSN
- 0080-4649 (ISSN-L)
- 0962-8452
- 1471-2954
- PMC
- PMC6571469
- OpenAlex
- W2948372178
- Cited by
- 47
- References
- 4
- Citations by year
- 2026: 6 · 2025: 8 · 2024: 9 · 2023: 5 · 2022: 5 · 2021: 6 · 2020: 3 · 2019: 5
- FWCI
- 2.07
- Type
- journal article
- Language
- en
- Open access
- bronze
- doi.org
- Locations
- Proceedings of the Royal Society B Biological Sciences (publishedVersion)
- PubMed Central (publishedVersion)
- PubMed (publishedVersion)
- Funders
- Simons Foundation, New York (R-CMB-40)
- Topics
- Physical Sciences › Environmental Science › Environmental Chemistry › Marine Toxins and Detection Methods
- Physical Sciences › Earth and Planetary Sciences › Oceanography › Marine and coastal ecosystems
- Physical Sciences › Earth and Planetary Sciences › Oceanography › Oceanographic and Atmospheric Processes
- Keywords
- Cochlodinium polykrikoides, harmful algal blooms, ocean warming, sea surface temperature, potential growth rate, phenology, realized niche, Chesapeake Bay, Sea of Japan, North American coast, East Asian coast, dinoflagellates, satellite sea surface temperature
- MeSH terms
- Computer Simulation, Dinoflagellida, Environmental Monitoring, Japan, Oceans and Seas, Seasons, Seawater, Temperature, United States, Republic of Korea, Harmful Algal Bloom, Climate Change
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