Results 21 to 30 of about 66,140 (200)

Remote Estimation of Trophic State Index for Inland Waters Using Landsat-8 OLI Imagery

open access: yesRemote Sensing, 2021
Remote monitoring of trophic state for inland waters is a hotspot of water quality studies worldwide. However, the complex optical properties of inland waters limit the potential of algorithms.
Minqi Hu   +4 more
doaj   +1 more source

Eutrophication factor analysis using Carlson trophic state index (CTSI) towards non-algal impact reservoirs in Taiwan

open access: yes, 2023
Carlson trophic state index (CTSI) has been commonly adopted to assess the eutrophication potential of reservoirs or lakes in water quality management.
Jr-Lin Lin; Arthur Karangan; Ying Min Huang; Shyh-Fang Kang
core   +1 more source

An Analysis of the Trophic State of Clinton Lake [PDF]

open access: yesLake and Reservoir Management, 1999
ABSTRACT The trophic state of Clinton Lake was assessed. Typical longitudinal gradients were observed with nutrient concentrations (TN, TP, NO3-N, NH4-N, PO4-P) decreasing from the riverine areas of the reservoir to the main basin. The TN:TP ratio went from 6.7 in the riverine zones to 14.2 in the main basin.
Shih H. Wang   +3 more
openaire   +1 more source

Trophic state of lobelia lakes subjected to strong anthropogenic pressure located close to the Tricity area (northern Poland)

open access: yesLimnological Review, 2017
Intensive and expansive human activity greatly accelerates the natural process of lake evolution. It is assumed that an increase in the rate of lake fertilization (often termed “eutrophication”) is the most common and most serious anthropogenic ...
Markowski Maciej
doaj   +1 more source

Rotifer trophic state indices as ecosystem indicators in brackish coastal waters

open access: yesOceanologia, 2013
Thanks to their short life cycles, rotifers react rapidly to changes in environmental conditions and so may be useful for biological monitoring. The objective of this paper was to investigate the applicability of rotifer trophic state indices as ...
Agnieszka Gutkowska   +2 more
doaj   +1 more source

Trophic diversity of Poznań Lakeland lakes

open access: yesLimnological Review, 2015
The main goal of the presented work is to determine the current trophic state of 31 lakes located in Poznań Lakeland. These lakes are included in the lake monitoring programme executed by the Voivodship Environmental Protection Inspectorate in Poznań ...
Dzieszko Piotr, Zwoliński Zbigniew
doaj   +1 more source

Composition of algae assemblages in middle Tennessee streams and correlations of composition to trophic state

open access: yesJournal of Freshwater Ecology, 2017
Evaluations of the composition and biomass of photoautotrophic periphyton, nutrient concentrations of water, and concentrations of total phosphorous of benthic organic matter at eight stream sites in Middle Tennessee were used to: (1) document the ...
Molly R. Grimmett   +1 more
doaj   +1 more source

Influence of rainfall on the trophic status of a brazilian semiarid reservoir - doi: 10.4025/actascibiolsci.v35i4.18261

open access: yesActa Scientiarum: Biological Sciences, 2013
This study evaluated the trophic conditions of the reservoir located in the urban perimeter of the town General Sampaio, semiarid region of the Ceará State, Brazil and its relationship with seasonal variation in rainfall between 2010 and 2011.
Francisco Ítalo Barbosa Chaves   +4 more
doaj   +1 more source

Water pollution index of high Andean micro-basin of the Chumbao River, Andahuaylas, Peru

open access: yesRevista Facultad de Ingeniería Universidad de Antioquia, 2021
During its journey, the river water suffers natural or anthropic contamination, deteriorating its quality.  This impact can be qualified by determining the pollution Indexes (IPO).
David Choque-Quispe   +6 more
doaj   +1 more source

Evaluation of the Trophic Level of Kune and Vain Lagoons in Albania, Using Phytoplankton as a Bioindicator

open access: yesJournal of Sustainable Development of Energy, Water and Environment Systems, 2014
Concentration of chlorophyll is an adequate parameter for assessing the trophic state of lagoon ecosystems. Objectives of this study are: selection of a system of bioindicators to enable a good qualitative evaluation of the trophic state of the lagoons ...
Anni Koci Kallfa   +2 more
doaj   +1 more source

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