A Lakewide Comparison Study of Phytoplankton Biomass and its Species Composition in Lake Huron, 1971 to 1985

1991 ◽  
Vol 17 (4) ◽  
pp. 553-564 ◽  
Author(s):  
Joseph C. Makarewicz ◽  
Paul Bertram
Keyword(s):  
Species Composition ◽  
Phytoplankton Biomass ◽  
Lake Huron ◽  
Comparison Study

Effect of Water Body Morphology on Phytoplankton Biomass and Species Composition

2013 ◽  
Vol 777 ◽  
pp. 375-379
Author(s):  
Yue Hong Zhang ◽  
Fei Peng Li ◽  
Hu Hu Zhao ◽  
Hai Ping Zhang
Keyword(s):  
Species Composition ◽  
Water Body ◽  
Environmental Variables ◽  
Phytoplankton Biomass ◽  
Population Variation ◽  
Nutrient Concentrations ◽  
Body Morphology ◽  
Key Factor ◽  
Lake Type ◽  
River Type

Environmental variables, phytoplankton biomass and species composition in Nanhu Lake in Yingdong Village, Chongming Island were monitored from August 2010 to September 2011. The relationship between environmental variables and population variation of phytoplankton was discussed. The results showed that water body morphology was the key factor leading to the variation of phytoplankton community. In river-type waters the level of phytoplankton biomass was generally higher than that in lake-type waters, especially in summer. During the period of seasonal change, in river-type waters Cyanophyta dominated longer with the succession from Cyanophyta to Chlorophyta and Bacillariophyta occurred later than that in lake-type waters. Redundancy analysis (RDA) indicated that the morphology of enclosed waters had influence on phytoplankton biomass and species composition. One of the mechanisms may be that water body morphology could have impact on the growth and species dynamics of phytoplankton indirectly by affecting nutrient concentrations.

Phytoplankton biomass and species composition in a Mediterranean coastal lagoon

Hydrobiologia ◽  
1993 ◽  
Vol 271 (1) ◽  
pp. 27-40 ◽  
Author(s):  
Diana Sarno ◽  
Adriana Zingone ◽  
Vincenzo Saggiomo ◽  
Gian Carlo Carrada
Keyword(s):  
Species Composition ◽  
Coastal Lagoon ◽  
Phytoplankton Biomass ◽  
Mediterranean Coastal Lagoon

Phytoplankton of the Irkutsk Reservoir as an indicator of water quality

2012 ◽  
Vol 41 (2) ◽  
Author(s):  
Galina Popovskaya ◽  
Alena Firsova ◽  
Anna Bessudova ◽  
Maria Sakirko ◽  
Alexander Suturin ◽  
...  
Keyword(s):  
Water Quality ◽  
Species Composition ◽  
Lake Baikal ◽  
Water Body ◽  
Phytoplankton Biomass ◽  
Trophic Status ◽  
Algal Species ◽  
Open Water ◽  
Chemical Parameters ◽  
Oligotrophic Water

AbstractThe species composition of phytoplankton and quantitative parameters of its abundance are indicators of ecological conditions in a water body. This paper deals with the analysis of phytoplankton in the Irkutsk Reservoir, which was formed more than 50 years ago on the Angara River flowing out of Lake Baikal. The level of phytoplankton development in the reservoir is directly dependent on the abundance of diatoms in Lake Baikal. The dominant assemblage of algal species is stable and consists mainly of diatoms, chlorophytes, and chrysophytes. Cyanobacteria are represented by a small number of species with low abundance. According to the composition of indicator species, the water in the lower reaches of the Irkutsk Reservoir can be classified as clean. The saprobity index in the open-water period is 1.2, increasing to between 1.3 and 1.5 in small bays. The values of phytoplankton biomass and chemical parameters of water recorded in 2008 indicate that the Irkutsk Reservoir is an oligotrophic water body. Its trophic status has not changed significantly since the time of impoundment (1956–1958).

scholarly journals Improved estimates of phytoplankton community composition based on in situ spectral fluorescence: use of ordination and field-derived norm spectra for the bbe FluoroProbe

2016 ◽  
Vol 73 (10) ◽  
pp. 1472-1482 ◽  
Author(s):  
Joel W. Harrison ◽  
E. Todd Howell ◽  
Susan B. Watson ◽  
Ralph E.H. Smith
Keyword(s):  
Phytoplankton Biomass ◽  
Phytoplankton Community ◽  
Taxonomic Composition ◽  
Lake Huron ◽  
Aquatic Environments ◽  
Mean Square ◽  
Ordination Analysis ◽  
And Cluster Analysis ◽  
Phytoplankton Taxonomy

The use of spectral fluorometers for assessing phytoplankton concentrations and taxonomic composition in aquatic environments is increasingly common. However, the accuracy of such assessments suffers because the necessary norm spectra (spectral fingerprints) are derived using selected taxa and laboratory conditions that may not adequately represent the taxa and environmental conditions in the study area. Ordination analysis of raw fluorescence data has been proposed as a better means of interpreting spectral fluorescence data. We applied nonmetric multidimensional scaling and cluster analysis to raw in situ fluorescence data from Sturgeon Bay, a small, mesotrophic embayment of Georgian Bay (Lake Huron) to obtain system-specific norm spectra for the bbe FluoroProbe. The revised spectra gave improved estimates of phytoplankton taxonomy (root mean square error of 10% versus 14%) and of dissolved organic carbon and chlorophyll a concentrations. While promising, this method should be further explored in other systems with different and (or) weaker gradients in phytoplankton biomass and taxonomic composition.

scholarly journals Phytoplankton biomass and species composition in relation to some physical and chemical characteristics of Lake Adale, Haramaya Woreda, Oromia Region, Ethiopia

2013 ◽  
Vol 13 (2) ◽  
pp. 87-92 ◽  
Author(s):  
Zelalem Dessalegn Fayissa
Keyword(s):  
Species Composition ◽  
Chlorophyll A ◽  
Phytoplankton Biomass ◽  
Temporal Variations ◽  
East African ◽  
Physical Chemical ◽  
Chemical Conditions ◽  
Lake Waters ◽  
Physical And Chemical

Abstract Biomass and species composition of phytoplankton in relation to the physical and chemical conditions of the water in Lake Adale were studied from March, 2011 to September, 2011. All the physical, chemical and biological parameters measured varied temporally. The temperature of the lake was measured by digital oxygen meter and varied from 22°C to 26°C. The chemistry of the lake was basically similar to the dilute East African lake waters, with maximum pH values of 9.2 as measured in situ by a portable digital pH meter. The inorganic nutrients, which were of moderately high levels, varied temporally as a function of hydrological, hydrographic and biological conditions of the lake and were measured by a Hach kit (DR/2000 spectrophotometer) for nitrate, and colorimetrically with the ascorbic acid method for phosphate and molybdosilicate method for silica. The phytoplankton community, which was consistently dominated by cyanobacteria, exhibited low species diversity. Phytoplankton biomass measured as chlorophyll a varied from 23.35 to 55.18 mg m-3 .The concentration of chlorophyll a was calculated according to Talling and Driver (1963) using absorbance measurements made at 665 and 750 nm. The biomass of the lake indicates that the lake is a productive one. The factors responsible for the observed temporal variations in the physical, chemical and biological features of the lake are discussed.

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