1. Ecological stoichiometry is a conceptual framework that considers how the balance of energy and elements affects and is affected by organisms in the environment. This perspective has seen recent development primarily in marine and freshwater pelagic ecosystems but its widescale application to freshwater benthic ecosystems remains limited. 2. This paper briefly introduces the concept of ecolo...

............................................................................................................................................................................... 599 Introduction .......................................................................................................................................................................... 599 Mechanisms of Impacts: Filtra...

Streams are characterized by high degrees of patchiness that could influence the role of predators in these systems. Here we assess the impact of predatory benthic fishes on benthic macroinvertebrate density, biomass, and community structure at the patch scale in a fourth order stream in the southern Appalachians. We tested the role of predation in two different patch types: patches inhabited b...

We summarized studies on the impacts and scale effects of negative (competition, predation, parasitism, herbivory) and positive (mutualism, commensalism, indirect facilitation) species interactions in freshwater benthic habitats since ,1986 and focused on organisms with mainly or entirely aquatic life cycles. Benthologists publishing in J-NABS have contributed robustly to our overall knowledge ...

This study was conducted from November 2018 to October 2019 in 8 forested streams the Haut-Nyong and Mvilla watersheds determine influence of substrates granulometry on benthic macroinvertebrates. The physicochemical analyses showed highly oxygenated, weakly mineralized slightly acidic waters. granulometric reveal 9 categories depending scale sand, sand+gravel or sand+mud. Sampling macroinverte...

we investigated the environmental impact of trout farm discharge on zayandeh-rud river. three farms with different production capacities; 250, 25 and 70 tones were assigned to this study. five sampling sites were designated to each farm. benthic macroinvertebrates were collected in autumn, winter, and spring using the quantitative techniques. a total of 11 classes, 16 orders and 53 families&apo...

Numerous studies have been conducted to assess the impacts of urbanization on stream geomorphology and ecology. Recent research has shown benthic macroinvertebrates to be good indicators of stream health. Furthermore, significant correlations have been shown to exist between these benthic indicators and certain hydrologic metrics in receiving streams. These studies have used stream gage data an...

Water resources especially lotic ecosystems drain diverse landscapes with their peculiar climatic regime, making them extremely diverse in terms of establishment of complex network of biotic communities, one such component are benthic macroinvertebrates or zoobenthos which are integral components of freshwater systems. They are represented by insects, molluscans, crustaceans, annelids and nemat...