Spatio-temporal changes of winter and spring phytoplankton blooms in Arabian sea during the period 1997-2020.
Climate change
Food security
Indian ocean
Ocean warming
Primary productivity
Winter blooms
Journal
Journal of environmental management
ISSN: 1095-8630
Titre abrégé: J Environ Manage
Pays: England
ID NLM: 0401664
Informations de publication
Date de publication:
15 Apr 2023
15 Apr 2023
Historique:
received:
10
08
2022
revised:
18
01
2023
accepted:
31
01
2023
pubmed:
7
2
2023
medline:
4
3
2023
entrez:
6
2
2023
Statut:
ppublish
Résumé
Arabian Sea (AS) experiences Chlorophyll-a (Chl-a) blooms during winter and early spring (November-March) mainly due to the changes induced by seasonally reversing monsoon winds and associated processes. The seasonal blooms exhibit distinct regional patterns in their onset, duration, intensity and peak period. Recent changes in ocean dynamics and plankton composition have inflicted adverse effects in the distribution of Chl-a concentration in AS. Here, we analyse the long-term spatio-temporal changes in winter and early spring bloom events during the period 1997-2020, and evaluate the role of sea surface temperature (SST), mixed layer depth (MLD), sea surface salinity, winds, mesoscale eddies and surface currents on these bloom occurrences. We observe a significant reduction in these blooms, which started in the early 2000s and intensified in the last decade (2010-2020), with a notable drop in the adjacent gulfs (Gulf of Aden: 1.38 ± 0.7 × 10
Identifiants
pubmed: 36746044
pii: S0301-4797(23)00223-2
doi: 10.1016/j.jenvman.2023.117435
pii:
doi:
Types de publication
Journal Article
Langues
eng
Sous-ensembles de citation
IM
Pagination
117435Informations de copyright
Copyright © 2023 Elsevier Ltd. All rights reserved.
Déclaration de conflit d'intérêts
Declaration of competing interest The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper.