Identifying Algal Bloom ‘Hotspots’ in Marginal Productive Seas: A Review and Geospatial Analysis
Authors
Al-Shehhi, Maryam R
Abdul Samad, Yarjan
Publication Date
2022-05-20Journal Title
Remote Sensing
ISSN
2315-4675
Publisher
MDPI AG
Volume
14
Issue
10
Language
en
Type
Article
This Version
VoR
Metadata
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Al-Shehhi, M. R., & Abdul Samad, Y. (2022). Identifying Algal Bloom ‘Hotspots’ in Marginal Productive Seas: A Review and Geospatial Analysis. Remote Sensing, 14 (10) https://doi.org/10.3390/rs14102457
Abstract
<jats:p>Algal blooms in the marginal productive seas of the Indian Ocean are projected to become more prevalent over the coming decades. They reach from lower latitudes up to the coast of the northern Indian Ocean and the populated areas along the Arabian Gulf, Sea of Oman, Arabian Sea, and the Red Sea. Studies that document algal blooms in the Indian Ocean have either focused on individual or regional waters or have been limited by a lack of long-term observations. Herein, we attempt to review the impact of major monsoons on algal blooms in the region and identify the most important oceanic and atmospheric processes that trigger them. The analysis is carried out using a comprehensive dataset collected from many studies focusing on the Indian Ocean. For the first time, we identify ten algal bloom hotspots and identify the primary drivers supporting algal blooms in them. Growth is found to depend on nutrients brought by dust, river runoff, upwelling, mixing, and advection, together with the availability of light, all being modulated by the phase of the monsoon. We also find that sunlight and dust deposition are strong predictors of algal bloom species and are essential for understanding marine biodiversity.</jats:p>
Keywords
dust storms, productivity, Indian Ocean, climate change, phytoplankton
Identifiers
External DOI: https://doi.org/10.3390/rs14102457
This record's URL: https://www.repository.cam.ac.uk/handle/1810/337380
Rights
Licence:
https://creativecommons.org/licenses/by/4.0/
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