Evidence map›Paper›PMID 34210039›Full record

ArticleGenes2021

Illegal, Unreported, and Unregulated Fisheries Threatening Shark Conservation in African Waters Revealed from High Levels of Shark Mislabelling in Ghana.

Narkie Akua Agyeman, Carmen Blanco-Fernandez, Sophie Leonie Steinhaussen, Eva Garcia-Vazquez, Gonzalo Machado-Schiaffino

Open access · goldAbstract read
In one paragraph

Article in Genes, 2021. 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
1.5field-weighted citation impact, top 17% of its field
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, 28 citations in OpenAlex.

  1. Reconstructing historical catch trends of threatened sharks and rays based on fisher ecological knowledge.Conservation biology : the journal of the Society for Conservation Biology · 2025
    Article
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

5 authors at 1 institution in 1 country.

Narkie Akua AgyemanDepartment of Functional Biology, University of Oviedo, 33006 Oviedo, Spain.ORCID 0000-0001-8795-8307
Carmen Blanco-FernandezDepartment of Functional Biology, University of Oviedo, 33006 Oviedo, Spain.
Sophie Leonie SteinhaussenDepartment of Functional Biology, University of Oviedo, 33006 Oviedo, Spain.ORCID 0000-0002-0861-8396
Eva Garcia-VazquezDepartment of Functional Biology, University of Oviedo, 33006 Oviedo, Spain.
Gonzalo Machado-SchiaffinoDepartment of Functional Biology, University of Oviedo, 33006 Oviedo, Spain.ORCID 0000-0002-4049-3247
Universidad de Oviedo · ES

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Mislabelling of fish and fish products has attracted much attention over the last decades, following public awareness of the practice of substituting high-value with low-value fish in markets, restaurants, and processed seafood. In some cases, mislabelling includes illegal, unreported, and unregulated (IUU) fishing, contributing to overexploit substitute species that are undetectable when sold under wrong names. This is the first study of DNA barcoding to assess the level of mislabelling in fish marketed in Ghana, focusing on endangered shark species. Genetic identification was obtained from 650 base pair sequences within the cytochrome c oxidase I (COI) gene. All except one of 17 shark fillets analysed were wrongly labelled as compared with none of 28 samples of small commercial pelagic fish and 14 commercial shark samples purchased in Europe. Several substitute shark species in Ghana are endangered (

Indexed as

AnimalsDNA Barcoding, TaxonomicEndangered SpeciesFisheriesFish ProductsFood LabelingGhanaSharksDNA barcodingElasmobranchsfisheriesmislabelingseafood traceability

Identifiers

PMID34210039
PMCPMC8305889
OpenAlexW3175045926

What OpenQuestion holds

Textmetadata
LicenceCC BY
Read underepoch 390

Registered trials

None linked

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.