Results 111 to 120 of about 68,431 (295)

Effect of riverbed morphology, stream order and season on the structural and functional attributes of caddisfly assemblages (Insecta: Trichoptera) [PDF]

open access: yes, 2004
We tested the individual and joint effects of stream order, riverbed morphology (i.e. pool-riffle sequence), and season on the structural (i.e. species composition, density and richness) and functional (i.e.
Erős, Tibor, Schmera, Dénes
core   +1 more source

Land Use Influences Niche Size and the Assimilation of Resources by Benthic Macroinvertebrates in Tropical Headwater Streams

open access: yesPLoS ONE, 2016
It is well recognized that assemblage structure of stream macroinvertebrates changes with alterations in catchment or local land use. Our objective was to understand how the trophic ecology of benthic macroinvertebrate assemblages responds to land use ...
Diego Marcel Parreira de Castro   +5 more
semanticscholar   +1 more source

Feeding ecology of an Amazonian electric knifefish under altered flood‐pulse dynamics caused by hydroelectric damming

open access: yesJournal of Fish Biology, EarlyView.
Abstract This study evaluated the effects of the controlled flood pulse on diet composition, trophic niche breadth and feeding intensity of Archolaemus janeae, an electric knifefish species with a restricted distribution in the Amazon Basin. Monthly samples were collected from December 2020 to November 2021 in the Volta Grande stretch of the Xingu ...
Ana F. V. N. M. Costa   +8 more
wiley   +1 more source

Assessment of fish farm effluents on macroinvertebrates based on biological indices in Tajan River (north Iran)

open access: yesCaspian Journal of Environmental Sciences, 2013
Impacts of effluent from fish farming activities on fluvial ecosystems lead to deterioration of water quality and changes in the macroinvertebrates assemblage.
Imanpour Namin, J.   +2 more
doaj  

Comparison of Heavy Metals Accumulation Rate (Cd and Pb) in invertebrate and Fish (Alburnoides eichwaldii) in Tajan River, Mazandaran Province, Iran [PDF]

open access: yesبوم‌شناسی آبزیان, 2019
This study was performed to determine the trends of heavy metals transfer (cadmium and lead) from water to macroinvertebrates and the fish species, Alburnoides eichwaldii in 5 stations in the Tajan River in autumn and spring.
Mahdiye Hasani   +3 more
doaj  

Using Macroinvertebrates to Test the Water Quality of Lake Nacogdoches [PDF]

open access: yes, 2019
The target of this assessment was to conduct a water quality test on Lake Nacogdoches in Nacogdoches TX. Lake Nacogdoches is operated by the city of Nacogdoches for municipal water supply and recreation.
Conde de Frankenberg, Augusto   +3 more
core   +1 more source

A Survey of the Aquatic Macrobenthos of Waller Creek [PDF]

open access: yes, 1992
This report characterizes the mouth of Waller Creek, while also providing the results of a 10 month research period focusing on macrobenthic life. 876 individuals were collected, and details regarding their collection are included inside the report ...
Ziser, Stephen W.
core   +1 more source

Non‐native pink salmon Oncorhynchus gorbuscha carcasses benefit native benthic macroinvertebrates

open access: yesJournal of Fish Biology, EarlyView.
Abstract The invasion of the North Atlantic by pink salmon Oncorhynchus gorbuscha has raised concerns regarding their impact on coastal rivers. Although the influence of marine‐derived nutrients from returning adult O. gorbuscha on rivers in their native range has received much attention, the ecological consequences of invasive O.
Hui Wei   +9 more
wiley   +1 more source

Aquatic Invertebrates as Unlikely Vectors of Buruli Ulcer Disease

open access: yesEmerging Infectious Diseases, 2008
Buruli ulcer is a necrotizing skin disease caused by Mycobacterium ulcerans and associated with exposure to aquatic habitats. To assess possible transmission of M. ulcerans by aquatic biting insects, we conducted a field examination of biting water bugs (
M. Eric Benbow   +9 more
doaj   +1 more source

Removal of Sea Lettuce, Ulva spp., in Estuaries to Improve the Environments for Invertebrates, Fish, Wading Birds, and Eelgrass, Zostera marina [PDF]

open access: yes, 2005
Mats (biomasses) of macroalgae, i.e. Ulva spp., Enteromorpha spp., Graciolaria spp., and Cladophora spp., have increased markedly over the past 50 years, and they cover much larger areas than they once did in many estuaries of the world.
MacKenzie, Jr., Clyde L.
core  

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