Results 51 to 60 of about 66,140 (200)

KUALITAS AIR DAN STATUS KESUBURAN PERAIRAN WADUK SEMPOR, KEBUMEN

open access: yesJurnal Ilmu Pertanian Indonesia, 2014
Sempor Reservoir is one of the reservoir in Central Java. This reservoir has primary function as irrigation and hydropower source. Beside, it also has some benefit for fisheries and tourism activities. Reservoir utilization which has not been optimum yet
Fuquh Rahmat Shaleh   +2 more
doaj  

Variation of stream metabolism along a tropical environmental gradient

open access: yesJournal of Limnology, 2018
Stream metabolism is affected by both natural and human-induced processes. While metabolism has multiple implications for ecological processes, relatively little is known about how metabolic rates are influenced by land use in tropical streams.
Wesley A. Saltarelli   +7 more
doaj   +1 more source

A New Trophic State Index for Lagoons [PDF]

open access: yesJournal of Ecosystems, 2014
This paper proposes a new nitrogen-based trophic state index (TSI) for the estimation of status of eutrophication in a lagoon system. Nitrite-nitrogen (NO2-N) is preferable because of its greater abundance in Chilika lagoon and its relation to other criteria of trophic state, for example, chlorophyll-a (Chl-a) and Secchi disk depth (SDD).
openaire   +2 more sources

Population growth potential of rotifers from a high altitude eutrophic waterbody, Madín reservoir (State of Mexico, Mexico): The importance of seasonal sampling

open access: yesJournal of Limnology, 2018
To understand the population growth potential of different species of rotifers in nature, field collections through seasons are essential. We sampled zooplankton (and measured selected physicochemical variables) from the Madín reservoir, a high altitude ...
Rosa Martha Moreno-Gutiérrez   +3 more
doaj   +1 more source

Evaluation of the trophic state in Vilun lagoon

open access: yesAdvances in Bioscience and Biotechnology, 2011
In this paper we present the evaluation of trophic state of lagoon aquatic ecosystems connected to the Adriatic Sea. Vilun lagoon is one of these lagoons in Albania. It is one of the most important ecosystems in the country. For trophic state evaluation, spectrophotometry methods of absorption, as well as turbidimetry ones are applied.
Veledin Çako, Fatbardha Babani
openaire   +2 more sources

Carlson\u27s Trophic State Index and Southern Minnesota Lakes

open access: yes, 2021
Carlson\u27s Trophic State Index (TSI) uses phosphorous and chlorophyll-a concentrations as well as Secchi disk readings to measure the quality of Mankato-area lakes.
Ress, Sarah, Carlisle, Kristen
core  

Plankton Respiration, Production, and Trophic State in Tropical Coastal and Shelf Waters Adjacent to Northern Australia

open access: yesFrontiers in Marine Science, 2017
In a changing ocean, tropical waters can be instructive as to the potential effects of climate induced changes on marine ecosystem structure and function.
A. David McKinnon   +3 more
doaj   +1 more source

Long-term spatial-temporal monitoring of eutrophication in Lake Burdur using remote sensing data

open access: yesWater Science and Technology, 2023
Lake eutrophication continues to be one of the major environmental challenges in lakes worldwide. This study is about using a remote sensing approach to monitor long-term chlorophyll-a (Chl-a) concentrations and the trophic state index (TSI) in Lake ...
Gizem Tuna Tuygun   +2 more
doaj   +1 more source

Seasonal variations in the trophic structure of phyto-and zooplankton communities in lakes in different trophic states [PDF]

open access: yesSwiss Journal of Hydrology, 1985
A number of environmental factors are important in regulating the trophic structure of plankton. Increased nutrient supply results in an explosive development of small algae and herbivorous zooplankton. In the eutrophic lakes (Greifensee, Hallwilersee) several algal community collapses occur each year as a consequence of the grazing habit of the ...
H. R. Bürgi, Pia Weber, H. Bachmann
openaire   +1 more source

Trophic State Evaluation for Selected Lakes in Yellowstone National Park

open access: yes, 2003
The purpose of this study was to tentatively classify the trophic level for selected lakes, except Yellowstone Lake, in Yellowstone National Park. This paper also documents the monitoring methods and perspectives used in this study as meeting current ...
Miller, Woodruff
core   +1 more source

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