Evidence map›Paper›PMID 42159753›Full record

ArticleEnvironmental management2026

Beyond Removal: Strategies for Sustainable Control of Water Hyacinth in Tropical Freshwater Ecosystems.

Desalegn Chala, Diress Tsegaye, Habtamu Alem, Belachew Asalf, Melesse Eshetu Moges, Nega Tassie Abate, Ayalew Wondie, Aklilu Tilahun Tadesse, Abebayehu Aticho, Alemu Gonsamo and 4 more

Abstract read
In one paragraph

Article in Environmental management, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.

0numbers the graph read from it
0cells of the map it votes in
1citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

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.

2 · The registry

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.

3 · Its place in the literature

Who cites it

1 citing paper in PubMed.

  1. Review
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

14 authors.

Desalegn ChalaNatural History Museum, University of Oslo, Oslo, Norway. desdchala@gmail.com.
Diress TsegayeDepartment of Landscape Monitoring, Survey and Statistics Division, Norwegian Institute of Bioeconomy Research (NIBIO), Ås, Norway.
Habtamu AlemDepartment of Economics and Society, Norwegian Institute of Bioeconomy Research, Ås, Norway.
Belachew AsalfDivision of Biotechnology and Plant Health, Norwegian Institute of Bioeconomy Research (NIBIO), Ås, Norway.
Melesse Eshetu MogesFaculty of Science and Technology, Norwegian University of Life Sciences (NMBU), Ås, Norway.
Nega Tassie AbateDepartment of Biology, Bahir Dar University, Bahir Dar, Ethiopia.
Ayalew WondieLake Tana and Other Waterbodies Protection and Development Agency, Bahir Dar, Ethiopia.
Aklilu Tilahun TadesseNorwegian Veterinary Institute, Research Aquatic Biosecurity, Bergen, Norway.
Abebayehu AtichoDepartment of Natural Resource Management, College of Agriculture and Veterinary Medicine, Jimma University, Jimma, Ethiopia.
Alemu GonsamoSchool of Earth, Environment & Society, McMaster University, Hamilton, ON, Canada.
Lanhui WangCenter for Biodiversity Dynamics in a Changing World (BIOCHANGE), Department of Biology, Aarhus University, Aarhus, Denmark.
Erick LundgrenCenter for Biodiversity Dynamics in a Changing World (BIOCHANGE), Department of Biology, Aarhus University, Aarhus, Denmark.
Jeffrey KerbySection for Ecoinformatics and Biodiversity, Department of Biology, Aarhus University, Aarhus, Denmark.
Jens Christian SvenningCenter for Biodiversity Dynamics in a Changing World (BIOCHANGE), Department of Biology, Aarhus University, Aarhus, Denmark.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Water hyacinth is among the world's most damaging aquatic invasive plants, forming dense mats that disrupt ecosystem functioning, fisheries, navigation, and livelihoods across tropical and subtropical freshwater systems. Its rapid spread is driven by clonal propagation, short life cycles, and prolific seed production, particularly under nutrient-enriched conditions. Although mechanical, chemical, and biological control methods are widely applied, their long-term effectiveness remains uncertain when underlying eutrophication persists. Here, we present a large-scale, one-time water hyacinth removal campaign in Lake Tana, Ethiopia's largest lake and a UNESCO Biosphere Reserve, as a representative nutrient-rich tropical freshwater system. Using high-resolution satellite imagery, we quantified coverage one month before removal, one month after removal, and one year later. We integrated SWOT (Strengths, Weaknesses, Opportunities, Threats) analysis with a socio-ecological system map to assess mitigation mechanisms and identify sustainable management pathways capable of providing long-term solutions to halt water hyacinth proliferation in freshwater bodies. The campaign removed over 75% (~1271 ha) of water hyacinth, yet within one year the plant resurged to levels ~18% higher than pre-removal. This rebound highlights the ecological resilience of water hyacinth and the limitations of short term, noncontinuous control strategies. Our analysis identifies unmanaged catchment nutrient inputs as the primary driver of proliferation. Lake Tana serves as a model system demonstrating that water hyacinth functions less as a traditional invader and more as a bioindicator of eutrophication. We propose a transferable conceptual and methodological framework combining continuous removal, catchment-based nutrient management, and circular bioeconomy approaches, offering globally relevant lessons for sustainable management of nutrient-enriched tropical freshwater systems.

Indexed as

Conservation of Natural ResourcesEcosystemEichhorniaEthiopiaEutrophicationFresh WaterIntroduced SpeciesLakesTropical Climate

Identifiers

PMID42159753
PMCPMC13190500

What OpenQuestion holds

Textmetadata
LicenceCC BY
Read underepoch 390

Registered trials

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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.