Subsurface algal blooms of the northwestern Arabian Sea

Sergey A. Piontkovski, Bastien Y. Queste, Khalid A. Al-Hashmi, Aisha Al-Shaaibi, Yulia V. Bryantseva, Elena A. Popova

Research output: Contribution to journalArticle

5 Citations (Scopus)

Abstract

In situ plankton sampling, combined with remotely sensed and ocean Seaglider observations, provided insight into the termination of the winter monsoon bloom and subsequent evolution into a subsurface fluorescence maximum in the northwestern Arabian Sea. This sub - surface maximum gradually descended, presenting increased fluorescence between 25 and 55 m depth during the spring inter-monsoon season. Species diversity decreased by half within the deep fluorescence maximum relative to the bloom. The dinoflagellate Noctiluca scintillans dominated by biomass in all samples collected from the depth of the subsurface fluorescence maximum. We show that the subsurface algal bloom persists throughout inter-monsoon seasons, linking algal blooms initiated during the southwest and northeast monsoons. In situ samples showed a net decrease in Noctiluca cell size, illustrating a shift towards a deep chlorophyll maximum adapted community, but did not exhibit any increases in chlorophyll-containing endo - symbionts. We propose that the plankton biomass and estimates of the northwestern Arabian Sea productivity are much greater than estimated previously through remote sensing observations, due to the persistence, intensity and vertical extent of the deep chlorophyll maximum which - using remote means - can only be estimated, but not measured.

Original languageEnglish
Pages (from-to)67-78
Number of pages12
JournalMarine Ecology Progress Series
Volume566
DOIs
Publication statusPublished - Feb 27 2017

Fingerprint

Arabian Sea
algal blooms
algal bloom
monsoon
fluorescence
monsoon season
chlorophyll
plankton
biomass
symbiont
sampling
symbionts
dinoflagellate
remote sensing
species diversity
persistence
oceans
productivity
sea
winter

Keywords

  • Algal blooms
  • Chlorophyll A
  • Zooplankton

ASJC Scopus subject areas

  • Ecology, Evolution, Behavior and Systematics
  • Ecology
  • Aquatic Science

Cite this

Piontkovski, S. A., Queste, B. Y., Al-Hashmi, K. A., Al-Shaaibi, A., Bryantseva, Y. V., & Popova, E. A. (2017). Subsurface algal blooms of the northwestern Arabian Sea. Marine Ecology Progress Series, 566, 67-78. https://doi.org/10.3354/meps11990

Subsurface algal blooms of the northwestern Arabian Sea. / Piontkovski, Sergey A.; Queste, Bastien Y.; Al-Hashmi, Khalid A.; Al-Shaaibi, Aisha; Bryantseva, Yulia V.; Popova, Elena A.

In: Marine Ecology Progress Series, Vol. 566, 27.02.2017, p. 67-78.

Research output: Contribution to journalArticle

Piontkovski, SA, Queste, BY, Al-Hashmi, KA, Al-Shaaibi, A, Bryantseva, YV & Popova, EA 2017, 'Subsurface algal blooms of the northwestern Arabian Sea', Marine Ecology Progress Series, vol. 566, pp. 67-78. https://doi.org/10.3354/meps11990
Piontkovski SA, Queste BY, Al-Hashmi KA, Al-Shaaibi A, Bryantseva YV, Popova EA. Subsurface algal blooms of the northwestern Arabian Sea. Marine Ecology Progress Series. 2017 Feb 27;566:67-78. https://doi.org/10.3354/meps11990
Piontkovski, Sergey A. ; Queste, Bastien Y. ; Al-Hashmi, Khalid A. ; Al-Shaaibi, Aisha ; Bryantseva, Yulia V. ; Popova, Elena A. / Subsurface algal blooms of the northwestern Arabian Sea. In: Marine Ecology Progress Series. 2017 ; Vol. 566. pp. 67-78.
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