Results 91 to 100 of about 4,535 (210)

Bioassessment of the West Fork of the White River, Northwest Arkansas [PDF]

open access: yes, 2003
The West Fork-White River has been and continues to be an important water resource for northwest Arkansas. It is used recreationally for fishing and swimming, agriculturally as a source of water for livestock and irrigation of crops, it is mined for ...
Brown, Arthur V.   +2 more
core   +2 more sources

Allozyme and mitochondrial DNA variability within the New Zealand damselfly genera Xanthocnemis, Austrolestes, and Ischnura (Odonata) [PDF]

open access: yes, 2007
We collected larval damselflies from 17 sites in the North, South and Chatham Islands, and tested the hypotheses that: (1) genetic markers (e.g., allozymes, mtDNA) would successfully ¬discriminate taxa; and (2) the dispersal capabilities of adult ...
Hebert PDN   +8 more
core   +2 more sources

Pre-impoundment Limnological Study of the Strawberry River in Northeastern Arkansas [PDF]

open access: yes, 1971
A study of pre-impoundment limnological characteristics of the Strawberry River was made from August, 1967 to June, 1968. Two collecting stations were established, one upstream which would not be inundated and a lower station which would be inundated ...
Harp, George L., Robison, Henry W.
core   +2 more sources

Trophic Transfer of Arsenic from an Aquatic Insect to Terrestrial Insect Predators. [PDF]

open access: yes, 2013
The movement of energy and nutrients from aquatic to terrestrial ecosystems can be substantial, and emergent aquatic insects can serve as biovectors not only for nutrients, but also for contaminants present in the aquatic environment.
Mogren, Christina L   +3 more
core   +2 more sources

The Genus Neohermes (Megaloptera: Corydalidae) [PDF]

open access: yesPsyche: A Journal of Entomology, 1965
(Uploaded by Plazi from the Biodiversity Heritage Library) No abstract provided.
openaire   +1 more source

Quantifying and classifying microplastics and microparticles across aquatic heterotrophs from headwater streams in central Pennsylvania

open access: yesJournal of Freshwater Ecology
Microplastics ( 0.05). The distribution of microparticle morphology and color combinations varied significantly across the heterotroph groups, and there were negative correlations between brook trout morphological characteristics and microparticle count (
Isaac Carachilo   +4 more
doaj   +1 more source

Chapter 9: Aquatic Macroinvertebrates, Section A: Aquatic Macroinvertebrates (Exclusive of Mosquitoes) [PDF]

open access: yes, 1985
Final Report. Excerpt (Chapter 9, Section A) from The Des Plaines River Wetlands Demonstration Project, Volume II, Baseline Survey, edited by Donald L. Hey and Nancy S.
Brigham, Allison R.   +6 more
core  

Makrozoobenthos sebagai Bioindikator Kualitas Air Sungai di Sub DAS Ciliwung Hulu [PDF]

open access: yes, 2016
Macrozoobenthos has a relatively sedentary nature and the very limited movement which will directly affected in the event of changes in water quality, therefore markozoobenthos often used as bio-indicators of water quality.
Mardianto, Y. (Yusli)   +2 more
core  

Avaliação da qualidade ecológica de rios portugueses (Projecto AQUARIPORT): síntese dos resultados referentes à análise das comunidades de macroinvertebrados bentónicos [PDF]

open access: yes, 2008
O projecto AQUARIPORT serve de base ao Programa Nacional de Monitorização de sistemas aquáticos e tem como objectivos (1) a recolha de informação base de suporte ao ordenamento dos recursos piscícolas nacionais; (2) o desenvolvimento e a implementação ...
Bochechas, Jorge   +4 more
core  

Neuropterida dell\u27iglesiente (Sardegna sud-occidentale)(raphidioptera, Neuroptera) [PDF]

open access: yes
A checklist of the Neuropterida of the Iglesiente area (SW Sardinia) is presented. On the whole, one species of Raphidioptera and 25 of Neuroptera are recorded on the basis of the inspection of public collections as well as from the study of specimens ...
Letardi, Agostino   +2 more
core   +1 more source

Home - About - Disclaimer - Privacy