Results 111 to 120 of about 9,269 (277)

First complete mitochondrial genome of a Gripopterygid stonefly from the sub-order Antarctoperlaria: Zelandoperla fenestrata

open access: yesMitochondrial DNA. Part B. Resources, 2019
Plecoptera (stoneflies) are an anciently derived order of freshwater insects with two divergent suborders Antarctoperlaria in the southern hemisphere and Arctoperlaria primarily in the northern hemisphere.
Andrew J. Veale   +2 more
doaj   +1 more source

Biological research of Grabia River - fifty years of activity [PDF]

open access: yes, 2005
Grabia, a small still close to natural conditions lowland river, has been an object of special interest for Łódź hydrobiologists for more than 50 years.
Siciński, Jacek, Tończyk, Grzegorz
core  

Clouds, shadows, or twilight? Mayfly nymphs recognise the difference [PDF]

open access: yes, 2006
1. We examined the relative changes in light intensity that initiate night-time locomotor activity changes in nymphs of the mayfly, Stenonema modestum (Heptageniidae).
Allan J.D.   +29 more
core   +3 more sources

Testable models of aquatic systems: A NERC special topic for integrating experiments and modelling [PDF]

open access: yes, 1999
A major part of the support for fundamental research on aquatic ecosystems continues to be provided by the Natural Environment Research Council (NERC). Funds are released for ”thematic” studies in a selected special topic or programme.
Maberly, Stephen, Reynolds, Colin
core  

The Return of \u3ci\u3eHexagenia\u3c/i\u3e (Ephemeroptera: Ephemeridae) to the Lower Fox River, Wisconsin [PDF]

open access: yes, 2017
Burrowing mayflies (Hexagenia bilineata) were collected in 1991 in the vicinity of the DePere dam on the Fox River, Brown County, Wisconsin. Because Hexagenia mayflies are indicators of good water quality, their emergence from the Fox River is evidence ...
Cochran, Phillip A
core   +2 more sources

The classification and prediction of macroinvertebrate communities in British rivers [PDF]

open access: yes, 1985
This article describes the progress of the River Communities Project which commenced in 1977. This project aimed to develop a sensitive and practical system for river site classification using macroinvertebrates as an objective means of appraising the ...
Armitage, P.D.   +3 more
core  

Predicting the occurrence of stoneflies (Plecoptera) on the basis of water characteristics, river morphology and land use

open access: yes, 2014
Stoneflies are macro-invertebrates that are sensitive water quality indicators. Here, their occurrence was modelled based on physical–chemical water characteristics, river morphology and land use with five different modelling techniques.
K. Lock, P. Goethals
semanticscholar   +1 more source

Stoneflies of the genus Neoperla (Plecoptera, Perlidae) from Wuyi Mountain National Nature Reserve, Fujian of China

open access: yesZooKeys, 2013
The species of the genus Neoperla are reviewed from Wuyi Mountain National Nature Reserve located in the Fujian Province of southeastern China, including the description of a new species, Neoperla brevistyla sp. n.
Xuefeng Qin   +3 more
semanticscholar   +1 more source

Review of investigation on the feeding of the European grayling [Translation from: Flora Slodkowodna Polski. Tom 2. Cyanophyta, Glaucophyta (ed. K. Starmach) p350-352. Warsaw, Polska Academia Nauk, 1966] [PDF]

open access: yes, 1981
The composition of the food of the European grayling and the character of its feeding has been studied fully enough, but this knowledge is scattered in the literature and often contradictory.
Zinov'ev, E.V.
core  

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