Results 101 to 110 of about 11,482 (265)
Kaptai Lake is a developing ecosystem with a linear food web and thereby vulnerable to external influences. The apex predator, Catfish (TL‐3.364), occupied the top trophic niches, while the overabundant (B: 3.264 t/km2) Clupeid (TL‐2.56) dominated the lower trophic level in the food web. The higher values of ecotrophic efficiency for most of the groups
Debashis Kumar Mondal +6 more
wiley +1 more source
Aim Shredders are generally not abundant in tropical streams, and there is considerable evidence suggesting that the food supply drives this pattern in headwaters.
Gustavo Figueiredo Marques Leite +4 more
doaj +1 more source
Twenty-four new species of Polycentropus (Trichoptera, Polycentropodidae) from Brazil
Twenty-four new species of the caddisfly genus Polycentropus (Insecta: Trichoptera: Polycentropodidae) occurring in Brazil are diagnosed, described, and the male genitalia of each are illustrated.
Steven Hamilton, Ralph Holzenthal
doaj +1 more source
Validation of CTmax Protocols Using Cased and Uncased \u3ci\u3ePycnopsyche Guttifer\u3c/i\u3e (Trichoptera: Limnephilidae) Larvae [PDF]
The critical thermal maximum (CTmax) of a northern Lower Michigan population of Pycnopsyche guttifer was determined using four rates of temperature increase (0.10, 0.33, 0.50, and 0.70oC per minute), and two case states (intact and removed).
Houghton, David C +2 more
core +2 more sources
Rotifers perform key functions in aquatic food webs and respond to environmental changes, thus providing sensitive indicators of water quality. However, rotifers are small, highly diverse, and difficult to identify for those lacking expertise. Monogononta are the largest taxonomic class of rotifers with over 1500 species described globally, and around ...
Gemma E. Collins +7 more
wiley +1 more source
Aquatic biosurvey of the Lovell River on UNH land [PDF]
We assessed the physical, chemical and biological conditions at two sites along the Lovell River on University of New Hampshire (UNH) -owned conservation land. The discharge was 4.4 m3 s-1 at Site 1 and 5.7 m3 s -1 downstream at Site 2.
Barry, Lisa M. +12 more
core +1 more source
Caddisflies (Trichoptera) are small, cosmopolitan insects closely related to the Lepidoptera (moths and butterflies). Most caddisflies construct protective cases during their larval development. Although the earliest recognisable caddisflies date back to
L. Mouro +3 more
semanticscholar +1 more source
Abstract The grain‐scale arrangement of gravel is important in controlling the stability of river beds, sediment supply and geomorphic adjustment of river channels. However, the influence of gravel bed texture on grain mobility is difficult to quantify because differences in flow history and sediment composition influence the development of bed ...
D. Whitfield +3 more
wiley +1 more source
Contribution to the mayfly, aquatic beetle, aquatic and semiaquatic bug and caddisfly fauna of watercourses in the Bihari-plain, E Hungary (Ephemeroptera larvae; Coleoptera: Hydradephaga, Hydrophiloidea; Heteroptera: Nepomorpha, Gerromorpha; Trichoptera larvae) [PDF]
Collecting data of 113 species of aquatic macroinvertebrates (Ephemeroptera: 6, Coleoptera: 75, Heteroptera: 20 and Trichoptera: 12) are given from 8 localities in Bihari plain, E ...
Boda, Pál +3 more
core
Ameliorating Effect of Chloride on Nitrite Toxicity to Freshwater Invertebrates with Different Physiology: a Comparative Study Between Amphipods and Planarians [PDF]
High nitrite concentrations in freshwater ecosystems may cause toxicity to aquatic animals. These living organisms can take nitrite up from water through their chloride cells, subsequently suffering oxidation of their respiratory pigments (hemoglobin ...
Alonso, A., Camargo, J.A.
core +2 more sources

