Results 281 to 290 of about 3,971,160 (346)

Evaluation of algal chlorophyll and nutrient relations and the N:P ratios along with trophic status and light regime in 60 Korea reservoirs.

Science of the Total Environment, 2020
The present study aimed to determine the spatial and temporal variations in trophic state and identify potential causes for these variations in 60 Korean reservoirs.
M. Mamun, Seokcheol Kwon, Jeong-Eun Kim, K. An   +3 more
semanticscholar   +1 more source

Anaerobic guilds responsible for mercury methylation in boreal wetlands of varied trophic status serving as either a methylmercury source or sink.

Environmental Microbiology, 2020
Wetlands are common sites of active Hg methylation by anaerobic microbes; however, the amount of methylmercury produced varies greatly, as Hg methylation is dependent upon both the availability of Hg and the composition and activity of the microbial ...
J. Schaefer, Rose‐Marie Kronberg, E. Björn, U. Skyllberg   +3 more
semanticscholar   +1 more source

Intergeneric Differences in Trophic Status of Scleractinian Corals From Weizhou Island, Northern South China Sea: Implication for Their Different Environmental Stress Tolerance

Journal of Geophysical Research: Biogeosciences, 2020
The knowledges of trophic status (i.e., autotrophy/heterotrophy) of corals are helpful for understanding the mechanisms driving their environmental stress tolerance and bleaching resilience. We conducted this study to elucidate the differences in trophic
Shendong Xu, Kefu Yu, Zhinan Zhang, Biao Chen, Zhenjun Qin, Xueyong Huang, Wei Jiang, Yixuan Wang, Yinghui Wang   +8 more
semanticscholar   +1 more source

Investigation of spatio-temporal variations of selected water quality parameters and trophic status of Lake Tana for sustainable management, Ethiopia

Microchemical journal (Print), 2019
Freshwater resources are of critical importance to both natural ecosystems and human development. The health of aquatic ecosystems is dependent on right proportions and required succession of major nutrients in the water and sediment.
Dessie Tibebe, Yezbie Kassa, Adane Melaku, Shewaye Lakew   +3 more
semanticscholar   +1 more source

Relationships between Nannoplankton and Lake Trophic Status

Canadian Journal of Fisheries and Aquatic Sciences, 1981
The hypotheses that with increasing eutrophication (1) nannoplankton biomass increases and (2) the relative proportion (percent) of nannoplankton biomass decreases were tested with data from Lake Memphremagog, a lake exhibiting a nutrient gradient, and on a more general scale using published data from a number of lakes.
Susan Watson, Jaap Kalff
openaire   +1 more source

Overview of Limnology and Trophic Status

1984
Figure 44 is a general synopsis of the annual cycle based on the foregoing chapters that have dealt with physical, chemical, and biological variables in Lake Dillon. The cycle is generalized for the 2 years of record. Layering and mixing patterns are the key to understanding chemical and biological changes through the year.
William M. Lewis, James F. Saunders, David W. Crumpacker, Charles M. Brendecke   +3 more
openaire   +1 more source

Isotopic signatures and trophic status of Ramaria

Mycological Progress, 2010
The genus Ramaria is composed of several subgenera that often correspond to specific trophic strategies. Because carbon and nitrogen isotopes can be used to assess fungal trophic status and nitrogen sources, we accordingly carried out an extensive survey of isotopic patterns in archived specimens of Ramaria from Germany and other locations.
Agerer, Reinhard, Christan, Josef, Mayr, Christoph, Hobbie, Erik A.   +3 more
openaire   +2 more sources

Quantifying the trophic status of lakes using total light absorption of optically active components.

Environmental Pollution, 2019
Eutrophication of lakes has become one of the world's most serious environmental problems, resulting in an urgent need to monitor and provide safeguards to control water quality.
Z. Wen, K. Song, Ge Liu, Y. Shang, C. Fang, Jia Du, L. Lyu   +6 more
semanticscholar   +1 more source

The trophic status of two Northern Irish sea loughs

Journal of Coastal Conservation, 1996
Studies were conducted on nutrient cycling in two coastal embayments; Strangford Lough and Belfast Lough, in order to classify these coastal waters in compliance with the European Union Urban Waste Water Treatment and Nitrates Directives. Analysis of the data suggests that Strangford Lough is nitrogen-limited throughout much of the growing season with ...
M. Service, A. E. Durrant, J. A. Mills, J. E. Taylor, D. Faughey   +4 more
openaire   +1 more source

The Trophic Status of the Bakhadda Dam Lake Using Physicochemical Analysis and Trophic Index

2021
This work aims to deduce the state of surface water in the Bakhadda Dam according to rotifers and physicochemical parameters. The sampling was carried out monthly for 2 years from December 2015 to November 2017. Nineteen physical and chemical parameters were recorded.
Ghiles Smaoune, Djaouida Bouchelouche, Nassima Doukhandji, Abdeslem Arab   +3 more
openaire   +1 more source