ArticleScientific reports2026
Spatial and seasonal dynamics of aquatic macroinvertebrates and fish communities in relation to water quality variation in the Nile Valley, Egypt.
Article in Scientific reports, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.
What it found
Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.
The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.
Who cites it
1 citing paper in PubMed.
- Influence of various reproduction substrates on the survival, health, and reproductive output of broodstock Mediterranean medicinal leech (Frontiers in veterinary science · 2026Article
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
13 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
The assessment of freshwater ecosystem health is essential for sustainable water management amid increasing environmental stress. Aquatic macroinvertebrates and fishes serve as key bioindicators, providing integrated insights into the impacts of water quality and habitat degradation. This study investigated the spatial and seasonal patterns of aquatic invertebrate and fish communities in relation to water quality variation in two contrasting sites of the Nile Valley, Egypt (Kafr Saad and Abu Rawash areas). Sampling was conducted across different freshwater habitats, including canals, irrigation channels, ditches, and pools. A total of 73 aquatic taxa belonging to 30 families and 11 orders were recorded. Community composition and total abundance differed markedly between sites, with the Kafr Saad area exhibiting higher diversity and a greater representation of pollution-intolerant taxa, whereas pollution-tolerant groups dominated Abu Rawash. Seasonal variation significantly influenced aquatic community structure, with higher abundance and diversity observed during the warmer season. Fish taxa, particularly Poeciliidae, were more prevalent in habitats characterized by normal and good water quality. Canonical correspondence analysis (CCA) revealed that plant communities, temperature, nitrate concentration, and electrical conductivity were the main environmental drivers structuring aquatic communities. Based on integrated physicochemical and biological indicators, water quality was classified as good in the Kafr Saad area and moderately good in the Abu Rawash area. These findings highlight the value of combining aquatic macroinvertebrates and fishes in spatiotemporal biomonitoring frameworks for freshwater quality assessment in the Nile Valley.
Indexed as
Identifiers
What OpenQuestion holds
Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.