Diversity and distribution of winter phytoplankton in the Arabian Gulf and the Sea of Oman

Polikarpov, Igor; Saburova, Maria; Al-Yamani, Faiza

doi:10.1016/j.csr.2016.03.009

Cited by 47 publications

(17 citation statements)

References 52 publications

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“…The concerns for eutrophication issues are driven by significant, long term increase in nutrient inputs to Kuwait coastal waters. Recent studies propose that the increased enrichment may also have additional impacts on food webs and species distribution due to changes in plankton community composition (Al-Yamani et al, 2019;Al-Yamani et al, 2017;Devlin et al, 2019;Devlin et al, 2015b;Polikarpov et al, 2016). It is also acknowledged that water circulation, hydrodynamics and the reduction of freshwater flow via the Shat Al Arab all play a significant role in governing nutrient and phytoplankton distribution in Kuwaiti and surrounding waters of the Northern Gulf (Al-Said et al, 2018;Devlin et al, 2019).…”

Section: Eutrophication and Harmful Algal Blooms (Habs)mentioning

confidence: 99%

Principles to enable comprehensive national marine ecosystem status assessments from disparate data: The state of the marine environment in Kuwait

Lyons

Bacon

Edmonds

et al. 2019

Estuarine, Coastal and Shelf Science

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This is a PDF file of an article that has undergone enhancements after acceptance, such as the addition of a cover page and metadata, and formatting for readability, but it is not yet the definitive version of record. This version will undergo additional copyediting, typesetting and review before it is published in its final form, but we are providing this version to give early visibility of the article. Please note that, during the production process, errors may be discovered which could affect the content, and all legal disclaimers that apply to the journal pertain.

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Section: Eutrophication and Harmful Algal Blooms (Habs)mentioning

confidence: 99%

Principles to enable comprehensive national marine ecosystem status assessments from disparate data: The state of the marine environment in Kuwait

Lyons

Bacon

Edmonds

et al. 2019

Estuarine, Coastal and Shelf Science

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“…More than 1,480 eukaryotic and prokaryotic primary producers have been described for the Gulf region (Jacob and Al-Muzaini, 1995) with Subba Rao and Al-Yamani (1998) identifying a dominance of epiphytic, tycho-pelagic diatoms to the north and a mix of diatoms and dinoflagellates to the south. Several papers report on these Gulf differences (Dorgham and Moftah, 1989;Al-Yamani et al, 2006;Nezlin et al, 2010;Quigg et al, 2013;Polikarpov et al, 2016) with a general agreement that there are two main regions in the Gulf along a diagonal northwest-southeast axis, with diatomdominated phytoplankton assemblage off the south and along the Iranian coast but with flagellate-dominated phytoplankton in the north and along the Arabian coast (Polikarpov et al, 2016). Changes in the Gulf phytoplankton community have been attributed to nutrient increases (El-Gindy and Dorgham, 1992;Al-Azri et al, 2014;Devlin et al, 2015a), and salinityrelated changes, particularly in the Northern Gulf region (Al-Said et al, 2017;Ben-Hasan et al, 2018).…”

Section: Introductionmentioning

confidence: 99%

Seasonal and Temporal Drivers Influencing Phytoplankton Community in Kuwait Marine Waters: Documenting a Changing Landscape in the Gulf

et al. 2019

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This assessment of environmental drivers and phytoplankton community in Kuwait (Arabian Gulf) describes changes in environmental conditions linked to the rapid urbanization over recent decades. To describe these changes, we have analyzed a longterm water quality dataset (1984-2017) and explored potential changes in a subset of phytoplankton community data by analyzing 10 years of phytoplankton data available (2007-2016) for Kuwait Bay and the Northern Gulf waters. The longer-term water quality data show that dissolved nutrient concentrations, with the exception of a recent fall in SiO 4 , have been increasing over 30 years, but with a high degree of variability reflecting the changing rate of inputs from river outflows and point sewage sources. The correlative analysis between the environmental parameters and phytoplankton in the period from 2007 to 2016 shows that the seasonal variability of the phytoplankton are influenced by several co-stressors including higher temperatures, coastal sewage runoff and changing salinity. While the extended nutrient enrichment has changed the trophic state of Kuwait waters, the seasonal and temporal correlations highlight that recent changes in phytoplankton community seem to be responding to cumulative pressures of eutrophication, climate, and salinity changes. The seasonal and temporal changes in the coastal phytoplankton community, responding to co-stressors, present challenges for managers to consider the simultaneous management of local, regional and external pressures. Continued declines in water quality within a system that is influenced by a warming climate can potentially have long-term consequences on the resilience of the Northern Gulf environment.

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“…One possible benefit of this carbonate rich dust might be to buffer future increases in ocean acidification (Doney et al, 2009) in the Arabian Gulf. 2013; Polikarpov et al, 2016). Thus, these data suggest that CaCO3 in Qatari dust does not dissolve upon entering seawater after atmospheric deposition.…”

Section: Fate Of Dust In Seawatermentioning

confidence: 74%

“…While there is a paucity of published data on primary productivity and diversity of phytoplankton in the region, existing information reveals north to south trends (Rao and Al-Yamani, 1998;Dorgham, 2013;Polikarpov et al, 2016) which are driven by particular environmental features (e.g., eutrophication, dust input and coastal (shallow) versus open (deep) water). Phytoplankton biomass (chlorophyll-a concentration), primary production, abundance, 15 species diversity and species groupings, together with water quality parameters, were measured in the Qatari EEZ by Quigg et al (2013).…”

mentioning

confidence: 99%

The Trace Element Composition of Size Fractionated Suspended Particulate Matter Samples from the Qatari EEZ of the Arabian Gulf: The Role of Atmospheric Dust

Yiğiterhan

Al-Ansari

Nelson

et al. 2019

Preprint

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Abstract. We analyzed net-tow samples of natural assemblages of plankton, and associated particulate matter, from the Exclusive Economic Zone (EEZ) of Qatar in the Arabian Gulf. Size fractioned suspended particles were collected using net-tows with mesh sizes of 50&#8201;&#956;m (phytoplankton) and 200&#8201;&#956;m (zooplankton) to examine the composition of plankton populations. Samples were collected in two different years (October 2012; April and October 2014) from 11 sites to examine temporal and spatial variabilities. We calculated the excess metal concentrations by correcting the bulk composition for inputs from atmospheric dust using aluminum (Al) as a lithogenic tracer and the metal&#8201;/&#8201;Al ratios for average Qatari dust. Atmospheric dust in Qatar is depleted in Al and enriched in calcium (Ca) relative to global average Upper Continental Crust (UCC) due to the geology of the outcropping sedimentary rocks and topsoil deposits in the source areas of the dust. To evaluate the fate of this carbonate fraction when dust particles enter seawater is uncertain, we leached a sub-set of dust samples using an acetic acid-hydroxylamine hydrochloride (HAc-HyHCl) procedure that should solubilize CaCO3 minerals and associated elements. We found that Ca was removed and that the metal/aluminum (Me&#8201;/&#8201;Al) ratios for most elements increased after leaching because the change in sample mass resulting from the leach was more important than the loss of metals solubilized by the leach. Because surface seawater is supersaturated with respect to CaCO3 and acid soluble Ca is abundant in the particulate matter, we only used unleached dust for the lithogenic correction. The concentrations of some elements in net-tow plankton samples appear to be mostly of lithogenic (dust) origin. These include Al, Fe, Cr, Co, Mn, Ni, Pb and Li. Several elements are mostly biogenic/anthropogenic origin. These include as Cd, Cu, Mo, Zn and Ca. The excess concentrations, relative to average dust, for most elements (except Cd) decreased with distance from shore, which may be due to differences in biology, currents, proximity to the coast or interannual processes.

show abstract

Diversity and distribution of winter phytoplankton in the Arabian Gulf and the Sea of Oman

Cited by 47 publications

References 52 publications

Principles to enable comprehensive national marine ecosystem status assessments from disparate data: The state of the marine environment in Kuwait

Principles to enable comprehensive national marine ecosystem status assessments from disparate data: The state of the marine environment in Kuwait

Seasonal and Temporal Drivers Influencing Phytoplankton Community in Kuwait Marine Waters: Documenting a Changing Landscape in the Gulf

The Trace Element Composition of Size Fractionated Suspended Particulate Matter Samples from the Qatari EEZ of the Arabian Gulf: The Role of Atmospheric Dust

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