Results 11 to 20 of about 22,317 (250)

Benthic Macroinvertebrate Susceptibility to Trout Farm Effluents [PDF]

open access: yesWater Environment Research, 2009
The direct effects of a Virginia trout farm on benthic macroinvertebrates were examined using multiple approaches. Static laboratory tests with the amphipod, Hyallela azteca, were conducted with exposures to water taken from a spring and from effluent both above and below a sedimentation basin.
Lenn, Roberts   +2 more
openaire   +2 more sources

Do contaminants originating from state-of-the-art treated wastewater impact the ecological quality of surface waters? [PDF]

open access: yes, 2013
Since the 1980s, advances in wastewater treatment technology have led to considerably improved surface water quality in the urban areas of many high income countries.
A Borja   +53 more
core   +9 more sources

Efficient sampling methodologies for lake littoral invertebrates in compliance with the European Water Framework Directive [PDF]

open access: yes, 2015
Lake shores are characterised by a high natural variability, which is increasingly threatened by a multitude of anthropogenic disturbances including morphological alterations to the littoral zone. The European Water Framework Directive (EU WFD) calls for
Brauns, Mario   +7 more
core   +1 more source

Biomonitoring of lake sediments using benthic macroinvertebrates [PDF]

open access: yesTrAC Trends in Analytical Chemistry, 2012
The Water Framework Directive (2000/60/EC) is an innovative piece of legislation aimed at protecting the quality of all continental and coastal waters in Europe through an ecological evaluation of the ecosystems. Since it is widely acknowledged that the greater the ecological realism the greater the difficulty of its definition, we describe the ...
R. Bettinetti   +3 more
openaire   +5 more sources

Benthic macroinvertebrate community and chlorophyll a (chl-a) concentration in sediment of three polluted sites in the Lagos Lagoon, Nigeria

open access: yesJournal of Applied Sciences and Environmental Management, 2017
This paper reports the benthic macroinvertebrate community and chlorophyll a (chl-a) concentration in sediment of three polluted sites in the Lagos Lagoon, Nigeria. Values observed for DO ranged between 3.0 and 4.5 mg/L, while transparency varied from 3
RE Uwadiae
doaj   +1 more source

Organisation of the benthic macroinvertebrate assemblage in tropical streams of different orders in North-Eastern Brazil

open access: yesEcología Austral, 2018
We selected streams located in north-eastern Brazil with the objective of assessing the effect of streams of different orders (1st, 2nd, 3rd) on the distribution and composition of benthic macroinvertebrates in the rainy and dry seasons.
Jessica F. Gomes Pio   +3 more
doaj   +1 more source

Low flow controls on benthic and hyporheic macroinvertebrate assemblages during supra-seasonal drought [PDF]

open access: yes, 2009
Despite the widely accepted importance of the hyporheic zone as a habitat for stream macroinvertebrates during floods, few data exist regarding community composition and distribution during periods of low flow or drought in perennial streamsi ...
Acuna   +65 more
core   +2 more sources

Relationship between salt use in fish farms and drift of macroinvertebrates in a freshwater stream

open access: yesAquaculture Environment Interactions, 2020
In Chile, salt (NaCl) use per salmon fish farm ranges between 20-30 t yr-1 and is used to prevent and control fungal infections. An increase in salinity in freshwater can have adverse effects on freshwater biodiversity and ecosystem functions and ...
F Encina-Montoya   +8 more
doaj   +1 more source

The preliminary observations of anthropogenic effects on the benthic macroinvertebrate communities in the brooks of the Eastern Black Sea region of Turkey: Çağlayan and Ikizdere [PDF]

open access: yesScientific Annals of the Danube Delta Institute, 2014
The aim of the present research is to determine the different anthropogenic effects on the benthic macroinvertebrates communities with some physico-chemical parameters in the two brooks (Çağlayan and İkizdere) of the East Black Sea Region of Turkey.
KIRKAĞAÇ Mine   +3 more
doaj   +1 more source

WALLER CREEK STATUS REPORT 2002 [PDF]

open access: yes, 2002
This short report contains information on Waller Creek's estimated population, fecal coliform levels, land use distribution, mean baseflow, total phosphorus, and other water quality indicators.Water chemistry and biological data from Waller Creek were ...
Scoggins, Mateo
core   +1 more source

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