Phytoplankton Community Structure Based on Photopigment Markers in a Mid-Atlantic U.S. Coastal Lagoon: Significance for Hard-Clam Production

Fantasia, R. L.; Bricelj, V. Monica; Tong, Daniel

doi:10.2112/si78-010.1

Cited by 5 publications

(5 citation statements)

References 58 publications

(74 reference statements)

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“…Since phylogeny optimally represents functional differences among taxa [39], it seems evident that ecosystems functioning can be better understood when a more exhaustive description of their constituents is achieved. Pigment based analysis has also contributed to enhance taxonomic determination of phytoplankton communities [40–42] and their combined application with FAs has generated very interesting synergic results [12, 43].…”

Section: Discussionmentioning

confidence: 99%

“…Pigment analysis revealed Eustigmatophyceae species are common in estuarine waters [56]. Pico-coccoid microalgae have been found to represent up to 93% of total phytoplankton cell volume under certain conditions in some estuaries while cyanobacteria can reach 6% of total biovolume [42]. The Raphidophyceae was other class exclusively detected when FAs were used as biomarkers, and its contribution to phytoplankton community was low and restricted to higher salinities.…”

Section: Discussionmentioning

confidence: 99%

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Seston fatty acids to quantify phytoplankton functional groups and their spatiotemporal dynamics in a highly turbid estuary

Cañavate

Bergeijk

González‐Ortegón

et al. 2019

Preprint

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Phytoplankton community composition expresses estuarine functionality and its assessment can be improved by implementing novel quantitative fatty acid based procedures. Fatty acids have similar potential to pigments for quantifying phytoplankton functional groups but have been far less applied. A recently created dataset containing vast information on fatty acids of phytoplankton taxonomic groups was used as reference to quantify phytoplankton functional groups in the yet undescribed Guadalquivir River Estuary. Twelve phytoplankton groups were quantitatively distinguished by iterative matrix factor analysis of seston fatty acid signatures in this turbid estuary. Those phytoplankton groups including species unfeasible for microscopy identification (coccoid or microflagellated cells) could be quantified when using fatty acids. Conducting monthly matrix factor analyses over a period of two years and the full salinity range of the estuary indicated that diatoms dominated about half of the phytoplankton community spatiotemporally. The abundance of Cyanobacteria and Chlorophytes was inversely related to salinity and little affected by seasonality. Euglenophytes were also more abundant at lower salinity, increasing their presence in autumn-winter. Coccolithophores and Dinophytes contributed more to phytoplankton community at higher salinity and remained little affected by seasonality. Multivariate canonical analysis indicated that the structure of the estuarine phytoplankton community was most influenced by salinity, secondly influenced by water temperature, irradiance and river flow, and unaffected by nutrients. Fatty acids are especially suited for phytoplankton community research in high turbid estuaries and generate outcomes in synergy with those derived from classical pigment assessments.

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Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Seston fatty acids to quantify phytoplankton functional groups and their spatiotemporal dynamics in a highly turbid estuary

Cañavate

Bergeijk

González‐Ortegón

et al. 2019

Preprint

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“…Negative direct anthropogenic impacts on coastal lagoons, in some cases exacerbated by climate change, include eutrophication and harmful algal blooms (HABs). These impacts have been reported worldwide, for lagoons along the coasts of Africa (e.g., [18]), Asia (e.g., [19,20]), Australia [21], Europe (e.g., [22][23][24]), North America [25][26][27][28], and South America (e.g., [29]). Coastal lagoons, as important areas for the production and harvesting of wild and farmed shellfish and finfish species, are highly vulnerable to the adverse effects of HABs on biological resources, human health, and ecosystem functioning and services (e.g., [15,30]).…”

Section: Introductionmentioning

confidence: 87%

“…The low contributions of these groups have also been reported for lagoonal systems with low freshwater inputs (e.g., [18,41,129,137]) or short residence times [39], conditions prevalent in the RF lagoon. The low average contributions of cyanobacteria, chlorophytes, and euglenophytes, phytoplankton indicator groups of increased freshwater influence in coastal lagoon systems [19,26,29,41], globally reflected the euryhaline nature of the RF lagoon.…”

Section: Composition Of Phytoplankton Assemblagesmentioning

confidence: 99%

“…These factors can also explain the generally higher, but not statistically different, abundances of most phytoplankton functional groups at the two innermost stations. A higher phytoplankton biomass, abundance, and/or production in the innermost lagoon regions have been reported for the RF western sector [42,58] and other coastal lagoonal systems, and are usually attributed to bottom-up controls, tidal flushing [18,26,41,[140][141][142], and riverine flushing [142]. However, relative phytoplankton declines in inner lagoon areas have been also referred to as a result of light limitation [143] and intensified grazing by planktonic and benthic filter feeders [129,144,145].…”

Section: Spatial-temporal Variability In Phytoplankton Biomass and Ab...mentioning

confidence: 99%

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Patterns and Predictors of Phytoplankton Assemblage Structure in a Coastal Lagoon: Species-Specific Analysis Needed to Disentangle Anthropogenic Pressures from Ocean Processes

Lima,

Barbosa,

Correia

et al. 2023

Water

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Phytoplankton are dominant primary producers and key indicators in aquatic ecosystems. Understanding the controlling factors on the structure of phytoplankton assemblages is fundamental, but particularly challenging at the land–ocean interface. To identify the patterns and predictors of phytoplankton assemblage structure in the Ria Formosa coastal lagoon (south Portugal), this study combined phytoplankton abundance along a transect between the discharge point of a wastewater treatment plant and a lagoon inlet, over two years, with physico-chemical, hydrographic, and meteo-oceanographic variables. Our study identified 147 operational taxonomic units (OTUs), and planktonic diatoms (60–74%) and cryptophyceans (17–25%) dominated the phytoplankton in terms of abundance. Despite strong lagoon hydrodynamics, and the lack of spatial differences in the phytoplankton abundance and most diversity metrics, the multivariate analysis revealed differences in the assemblage structure between stations (p < 0.001) and seasons (p < 0.01). Indicator analysis identified cryptophyceans as lagoon generalists, and 11 station-specific specialist OTUs, including Kryptoperidinium foliaceum and Oscillatoriales (innermost stations) and potentially toxigenic species (Pseudo-nitzschia and Dinophysis; outer lagoon station, p < 0.05). Water temperature, pH, and nutrients emerged as the variables that best explained the changes in the phytoplankton assemblage structure (p < 0.001). Our findings provide insight into the relevance of local anthropogenic and natural forcings on the phytoplankton assemblage structure and can be used to support the management of RF and other coastal lagoons.

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Fatty Acids to Quantify Phytoplankton Functional Groups and Their Spatiotemporal Dynamics in a Highly Turbid Estuary

Cañavate

Bergeijk

Giráldez

et al. 2019

Estuaries and Coasts

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Phytoplankton Community Structure Based on Photopigment Markers in a Mid-Atlantic U.S. Coastal Lagoon: Significance for Hard-Clam Production

Cited by 5 publications

References 58 publications

Seston fatty acids to quantify phytoplankton functional groups and their spatiotemporal dynamics in a highly turbid estuary

Seston fatty acids to quantify phytoplankton functional groups and their spatiotemporal dynamics in a highly turbid estuary

Patterns and Predictors of Phytoplankton Assemblage Structure in a Coastal Lagoon: Species-Specific Analysis Needed to Disentangle Anthropogenic Pressures from Ocean Processes

Fatty Acids to Quantify Phytoplankton Functional Groups and Their Spatiotemporal Dynamics in a Highly Turbid Estuary

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