Phytoplankton biomass in a subtropical estuary: Distribution, size composition, and carbon:Chlorophyll ratios

Putland, Jennifer N.; Iverson, Richard L.

doi:10.1007/bf02841341

Cited by 34 publications

(25 citation statements)

References 48 publications

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“…Fujiki and Taguchi, 2002), resulting in higher Chl-to-carbon ratios for larger cells. Field studies where cell carbon was determined from measurements of cell volume show higher Chl-to-carbon ratios for diatomdominated communities in contrast to communities dominated by small phytoplankton (Llewellyn et al, 2005;Putland and Iverson, 2007). In the California Current, observations supported by models also find higher Chl-to-carbon ratios for diatoms than picoplankton for similar environmental conditions (Li et al, 2010).…”

Section: Why Does the Chl F /B Bp Ratio Vary?mentioning

confidence: 96%

A simple optical index shows spatial and temporal heterogeneity in phytoplankton community composition during the 2008 North Atlantic Bloom Experiment

et al. 2015

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Abstract.The ratio of two in situ optical measurements -chlorophyll fluorescence (Chl F ) and optical particulate backscattering (b bp ) -varied with changes in phytoplankton community composition during the North Atlantic Bloom Experiment in the Iceland Basin in 2008. Using ship-based measurements of Chl F , b bp , chlorophyll a (Chl), highperformance liquid chromatography (HPLC) pigments, phytoplankton composition and carbon biomass, we found that oscillations in the ratio varied with changes in plankton community composition; hence we refer to Chl F /b bp as an "optical community index". The index varied by more than a factor of 2, with low values associated with pico-and nanophytoplankton and high values associated with diatomdominated phytoplankton communities. Observed changes in the optical index were driven by taxa-specific chlorophyllto-autotrophic carbon ratios and by physiological changes in Chl F associated with the silica limitation. A Lagrangian mixed-layer float and four Seagliders, operating continuously for 2 months, made similar measurements of the optical community index and followed the evolution and later demise of the diatom spring bloom. Temporal changes in optical community index and, by implication, the transition in community composition from diatom to post-diatom bloom communities were not simultaneous over the spatial domain surveyed by the ship, float and gliders. The ratio of simple optical properties measured from autonomous platforms, when carefully validated, provides a unique tool for studying phytoplankton patchiness on extended temporal scales and ecologically relevant spatial scales and should offer new insights into the processes regulating patchiness.

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Section: Why Does the Chl F /B Bp Ratio Vary?mentioning

confidence: 96%

A simple optical index shows spatial and temporal heterogeneity in phytoplankton community composition during the 2008 North Atlantic Bloom Experiment

et al. 2015

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“…Salinity influences the distribution and diversity of many living marine species. The rate of cell division on this microflora, as well as their occurrence, distribution and productivity is influenced by salinity (Lionard et al 2005;Putland et al 2007;Palleyi et al 2011;Sahu et al 2012;Farhadian et al 2015). There are many other factors, other than salinity that can influence the distribution of phytoplankton, such as turbidity, freshwater influx volume, water column stratification and grazing rate of zooplankton (Burns and Beardall 1987).…”

Section: Resultsmentioning

confidence: 99%

The use by local communities of plants from Sesaot Protected Forest, West Nusa Tenggara, Indonesia

Hidayat

2017

Biodiversitas

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Abstract. Pouladi M, Qadermarzi A, Baharvand F, Vazirizadeh A, Hedayati A. 2017 Province, Persian Gulf,. The main purpose of present study was to investigate the abundance and biodiversity of phytoplankton from Mond estuary, Bushehr, Persian Gulf during different seasons and its relationships with environmental parameters and nutrients. Samples were taken in mid-season from spring 2012 to winter 2013 for oneyear period. The phytoplankton were contributed by the phyla Bacillariophyta, Dinophyta, Haptophyta, and Chlorophyta. The class Coscinodiscophyceae and Bacillariophyceae belonging to Bacillariophyta were the most diverse and dominant with 22 and 16 genera, respectively. The mean phytoplankton abundance were recorded in spring 24), respectively. The phytoplankton assemblages were most diverse and abundant at station-5 in all seasons. In addition, there were significant correlation (P<0.01) between phytoplankton abundance and diversity with pH, salinity, NO 3 , PO 4 and temperature. Based on Principle Component Analysis (PCA), the most important factors that could describe most changes of abundance and diversity of phytoplankton in the Mond River estuary system were salinity, NO 3 , pH, PO 4 and temperature, respectively. Results demonstrated that diatoms were the dominant population and salinity factor was more effective factor that affected the diversity and abundance of phytoplankton during study period in Mond River estuary. . Effects of physicochemical factors on seasonal variations of phytoplankton in the Mond River Estuary of Bushehr

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“…Diversion of water from headwaters of the Apalachicola River during summer has been proposed to satisfy upstream freshwater requirements (Lewis, 1997). Ecology of microzooplankton bacterivory and herbivory (Putland and Iverson, 2007a), the copepod Acartia tonsa (Putland and Iverson, 2007b), and phytoplankton (Putland and Iverson, 2007c) were studied in Apalachicola Bay during a 2-yr period that coincided with above-average river discharge during summer 2003 and a natural drought during summer 2004. In the present study, the data acquired from these studies (bacterial abundances, chlorophyll concentration, and rates of prey growth and microzooplankton grazing), in addition to estimates of export and nutrient concentration, were synthesized to examine the potential impact of river water diversion on bacterioplankton abundance and chlorophyll concentration and the main factors that control them (growth, zooplankton grazing, and export; Mortazavi et al, 2000b).…”

Section: Introductionmentioning

confidence: 99%

“…Estuarine food webs are primarily fueled by autochthonous algal production (Sullivan and Moncreiff, 1990;Chanton and Lewis, 2002). Bacterioplankton are a secondary source of food supporting estuarine microbial food webs (Iriarte et al, 2003;Putland and Iverson, 2007a).…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Changes in Phytoplankton and Bacterioplankton Biomass and Rate Processes in Apalachicola Bay, Florida, in Response to Reduction in River Discharge

Putland¹,

Mortazavi

Iverson³

2009

goms

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Bacterioplankton abundance and chlorophyll concentration and the factors that control them (temperature, nutrient concentrations, and rates of growth, grazing, and export) were studied in Apalachicola Bay, FL, during two summers with contrasting river discharge. A reduction in river discharge from the summer of 2003 (S03) to the summer of 2004 (S04) led to a reduction in estuarine concentrations of dissolved inorganic nitrogen and rates of export, phytoplankton and bacterioplankton growth, and microzooplankton grazing on phytoplankton and bacterioplankton. Bacterioplankton abundance and chlorophyll concentration during S03 were not significantly different from those during S04. Neither the growth rates and abundances of ciliates nor the egg production rates and abundances of Acartia tonsa were significantly affected by the reduction in rate processes of bacterioplankton or phytoplankton. The proposed diversion of freshwater from the Apalachicola River during summer months may lead to substantial changes in the rate processes of bacterioplankton and phytoplankton, but little change in the standing stocks of bacterioplankton, phytoplankton, ciliates, A. tonsa, or ciliate growth rates and A. tonsa egg production rates.

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Phytoplankton biomass in a subtropical estuary: Distribution, size composition, and carbon:Chlorophyll ratios

Cited by 34 publications

References 48 publications

A simple optical index shows spatial and temporal heterogeneity in phytoplankton community composition during the 2008 North Atlantic Bloom Experiment

A simple optical index shows spatial and temporal heterogeneity in phytoplankton community composition during the 2008 North Atlantic Bloom Experiment

The use by local communities of plants from Sesaot Protected Forest, West Nusa Tenggara, Indonesia

Changes in Phytoplankton and Bacterioplankton Biomass and Rate Processes in Apalachicola Bay, Florida, in Response to Reduction in River Discharge

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