نتایج جستجو برای: hydropsyche sciligra
تعداد نتایج: 79 فیلتر نتایج به سال:
The present study focuses on the sensitivity among freshwater invertebrate species to acidic stress. Three common macroinvertebrate species in the Vosges Mountains (North-Eastern France), Gammarus fossarum (Amphipoda), Hydropsyche pellucidula (Trichoptera) and Dinocras cephalotes (Plecoptera) were exposed for 24, 72 and 120 h to natural acidified water (pH=4.73+/-0.08, [Ca2+]=39.1+/-0.6 micromo...
The immature stages of freshwater insects can sometimes be found in densities of up to 25,000 m -2 in saltwaterinundated regions of estuaries, however little is known of their condition there. The gut fullness and contents of larvae of two species of hydropsychid caddisfly (Hydropsyche siltalai and H. instabilis) from freshwater and saltwater-inundated sites on the Aber Estuary, Wales were comp...
The influence of environmental variables and the potential as bioindicators larval stages species Trichoptera were evaluated in a small stream northern Thailand from January to November 2017. A total 1,191 individual caddisfly larvae belonging 7 families 13 genus found. family Glossosomatidae most abundant, followed by Hydropsychidae Calamoceratidae. Glossosoma, Hydromanicusand Hydropsyche abun...
The dynamics of physico-chemical factors and their effects on caddisfly communities were examined in 29 streams of southern Western Ghats. Monthly samples were collected from the Thadaganachiamman stream of Sirumalai Hills, Tamil Nadu from May 2006 to April 2007. Southwest and northeast monsoons favored the existence of caddisfly population in streams. A total of 20 caddisfly taxa were collecte...
This article considers the natural regulators of blood-sucking Simuliidae subzone mixed forests on territory Belarus and Ukraine. In forests, major preimaginal phases bloodsucking blackflies are microsporidia (Polidyspirenia simulii, Polidyspirenia sp., Thelohania fibrata, Amblyospora bracteata, A. varians), fungi mermithides (Gastromermis boophthorae). Caddisfly larvae (Hydropsyche angustipenn...
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