Results 21 to 30 of about 16,109 (259)

Trophic status analysis and estimation of fish production in Aneuk Laot Lake aquatic resources management, Sabang City

open access: yesDepik Jurnal, 2022
Aneuk Laot Lake is located in Sabang City, Weh Island, Aceh Province. Changes in water quality can affect the life of aquatic organisms found in Aneuk Laot Lake.
Nurfadillah Nurfadillah   +5 more
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

Changes in the physicochemical and biological characteristics in the lentic and lotic waters of the Nile river

open access: yesEgyptian Journal of Aquatic Research, 2021
This study aims to compare the changes in the physicochemical and biological characteristics simultaneously in Nasser Lake as lentic water and the main Nile River as lotic water due to the construction of the Aswan High Dam. Therefore, water samples were
Talaat A. Salem
doaj   +1 more source

Trophic State Index estimation from remote sensing of lake Chapala, México

open access: yesRevista Mexicana de Ciencias Geológicas, 2017
The Trophic State Index (TSI) was estimated for Lake Chapala by remote sensing techniques as an indicator of water quality. Our results show that multispectral satellite images can be successfully used to monitor surface water parameters related to ...
Alejandra Selene Membrillo-Abad   +5 more
doaj   +1 more source

Trophic assessment of streams in Uruguay: A Trophic State Index for Benthic Invertebrates (TSI-BI)

open access: yesEcological Indicators, 2011
Abstract Human activities are radically changing natural land cover and increasing the delivery of soil, organic compounds, nutrients, toxic agrochemicals and other contaminants to aquatic ecosystems. The eutrophication of streams, rivers, lakes, reservoirs and costal zones is one of the most important consequences of human activities.
Guillermo Chalar   +3 more
openaire   +1 more source

Nutrient concentrations and trophic state of three Andean lakes from Junín, Perú

open access: yesRevista Ambiente & Água, 2020
The study assessed the trophic state of three lakes used as fish farms in the region of Junín-Peru, under different hydrological conditions. Surface water samples were collected from three points at each lake in 2018 during the rainy (March-April) and ...
Fernán Chanamé-Zapata   +3 more
doaj   +1 more source

Lagoon trophic state determination. Case of study Tecocomulco´s lagoon, Hidalgo, Mexico

open access: yesDyna, 2019
Because of anthropogenic impacts on the trophic state of Tecocomulco´s lagoon in Hidalgo, Mexico, the quantities of nitrogen, phosphorus, and other biologically useful nutrients are being increased in spite of they are the primary determinants of a body ...
FRANCISCO GARCIA GARCIA   +5 more
doaj   +1 more source

Application of Phytoplankton Taxonomic α-Diversity Indices to Assess Trophic States in Barrier Lake: A Case of Jingpo Lake

open access: yesDiversity, 2022
Phytoplankton taxonomic α-diversity indices are useful tools to characterize the trophic states in freshwater ecosystems. However, the application of these indices to assess trophic states in large barrier lakes is rare, especially in China.
Yang Cai   +6 more
doaj   +1 more source

Assessing trophic state of surface waters of Służewiecki Stream (Warsaw)

open access: yesApplied Water Science, 2021
Phosphorus (P) is one of the key nutrient compounds for phytoplankton grow. In the conducted work, eutrophication indexes were used for the assessment of eutrophication level of water course (Służewiecki Stream) and the waters of nearby lakes (Bottom ...
Małgorzata Wojtkowska   +1 more
doaj   +1 more source

Trophic state index linked to partial pressure of aquatic carbon dioxide in a typical karst plateau lake

open access: yesEcological Indicators, 2021
Trophic state index (TSI) can assess lake trophic status and trace in-situ metabolism, exhibiting a high potential in explaining autochthonous carbon dioxide (CO2) in aquatic environments.
Maofei Ni   +4 more
doaj   +1 more source

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