Results 21 to 30 of about 118,314 (298)

New Techniques for Associating the Stages of Aquatic Insects [PDF]

open access: yes, 2017
(excerpt) The immature forms of many benthic insect species are presently either undescribed or unidentifiable. The result is that associations with corresponding adult forms are often necessary in order to confirm specific and sometimes generic ...
McCafferty, W P, Provonsha, A. V.
core   +3 more sources

New records of suctorians (Ciliophora: Suctoria) as epibionts of aquatic true bugs (Hemiptera: Prosorrhyncha: Nepomorpha) from two regions: Mexico and Eastern Europe [PDF]

open access: yes, 2011
Here, we provide new records of suctorians (Ciliophora: Suctoria), epibionts of aquatic true bugs (Hemiptera: Prosorrhyncha: Nepomorpha) collected in Ukraine, Belarus and Mexico.
Dovgal, I. V.   +2 more
core   +1 more source

An Emergence Trap for Aquatic Insects [PDF]

open access: yes, 2017
Excerpt: The identification of organisms is a prerequisite to developing water quality criteria for aquatic life. Identification is necessary because differences in water quality requirements are specific and may be different for closely allied species ...
Lemke, Armond E., Mattson, Vincent R.
core   +2 more sources

Radiocesium-bearing microparticles cause a large variation in 137Cs activity concentration in the aquatic insect Stenopsyche marmorata (Tricoptera: Stenopsychidae) in the Ota River, Fukushima, Japan.

open access: yesPLoS ONE, 2022
After the Tokyo Electric Power Company Fukushima Daiichi Nuclear Power Plant accident in Japan, freshwater ecosystems near the site remained contaminated by radiocesium (RCs).
Yumiko Ishii   +11 more
doaj   +1 more source

Aquatic insect community structure revealed by eDNA metabarcoding derives indices for environmental assessment [PDF]

open access: yesPeerJ, 2020
Environmental DNA (eDNA) analysis provides an efficient and objective approach for monitoring and assessing ecological status; however, studies on the eDNA of aquatic insects, such as Ephemeroptera, Plecoptera, and Trichoptera (EPT), are limited despite ...
Noriko Uchida   +3 more
doaj   +2 more sources

Closely Related Tree Species Differentially Influence the Transfer of Carbon and Nitrogen from Leaf Litter Up the Aquatic Food Web [PDF]

open access: yes, 2014
Decomposing leaf litter in streams provides habitat and nutrition for aquatic insects. Despite large differences in the nutritional qualities of litter among different plant species, their effects on aquatic insects are often difficult to detect.
Adams, KJ   +7 more
core   +1 more source

\u3ci\u3eAnaphes\u3c/i\u3e (Hymenoptera: Mymaridae) Reared from the Eggs of a Shore Fly (Diptera: Ephydridae) [PDF]

open access: yes, 2017
Members of the family Mymaridae are obligate parasitoids of insect eggs, and some species attack the eggs of aquatic insects. Only one account of egg parasitism by the mymarid genus Anaphes on Diptera has been disclosed in the literature.
Foote, B. A   +2 more
core   +2 more sources

Diets and trophic guilds of aquatic insects in Molino River, La Guajira, Colombia

open access: yesJournal of Limnology, 2016
Aquatic insects are considered a key component for stream food webs because of their contribution to the flow of energy from basal resources to the top predators.
Cristian Granados-Martínez   +2 more
doaj   +1 more source

Deteriorating water quality state on the structural assemblage of aquatic insects in a North-Western NigerianRiver

open access: yesWater Science, 2022
Benthic aquatic insects receive the most direct impact when surface waters are perturbed. However, scarce data and understanding about activities’ effects on surface water ecosystems remain a critical challenge for water resource managers and ...
Fatima Garba   +4 more
doaj   +1 more source

Assessing Aquatic Insect Flight Behavior with Sticky Traps [PDF]

open access: yes, 2017
A suspended sticky trap was designed to analyze flight behavior of aquatic insects, including both direction and vertical distribution of flight. Specifications of trap construction are detailed.
Harris, T. L, McCafferty, W. P
core   +3 more sources

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