ArticleScientific reports2018
One thousand DNA barcodes of piranhas and pacus reveal geographic structure and unrecognised diversity in the Amazon.
Article in Scientific reports, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 20 papers.
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
20 citing papers in PubMed.
- Article
- Assessing fish diversity in small streams and ponds of the Peruvian Amazon using environmental DNA metabarcoding.ZooKeys · 2026Article
- A morphologically generalized EurasianPeerJ · 2026Article
- Weight-Length Ratio of PiranhasEcology and evolution · 2025Article
- Low Genetic Diversity and Complex Population Structure in Black Piranha (Ecology and evolution · 2025Article
- Article
- Cryptic diversity impacts model selection and macroevolutionary inferences in diversification analyses.Proceedings. Biological sciences · 2022Article
- DNA barcoding and phylogeography of the Hoplias malabaricus species complex.Scientific reports · 2022Article
- Hyperspectral data as a biodiversity screening tool can differentiate among diverse Neotropical fishes.Scientific reports · 2021Article
- Article
- Mapping the hidden diversity of thePeerJ · 2021Article
- Article
- Use of bioacoustics in species identification: Piranhas from genus Pygocentrus (Teleostei: Serrasalmidae) as a case study.PloS one · 2020Article
- Hidden diversity in Prochilodus nigricans: A new genetic lineage within the Tapajós River basin.PloS one · 2020Article
- Article
- Genetic evidence for a species complex within the piranha Serrasalmus maculatus (Characiformes, Serrasalmidae) from three Neotropical river basins based on mitochondrial DNA sequences.Genetics and molecular biology · 2020Article
- Article
- Evidence of cryptic lineages within a small South American crocodilian: the Schneider's dwarf caimanPeerJ · 2019Article
- Remarkable Geographic Structuring of Rheophilic Fishes of the Lower Araguaia River.Frontiers in genetics · 2018Article
- Metabarcoding by capture using a single COI probe (MCSP) to identify and quantify fish species in ichthyoplankton swarms.PloS one · 2018Article
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
6 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Piranhas and pacus (Characiformes: Serrasalmidae) are a charismatic but understudied family of Neotropical fishes. Here, we analyse a DNA barcode dataset comprising 1,122 specimens, 69 species, 16 genera, 208 localities, and 34 major river drainages in order to make an inventory of diversity and to highlight taxa and biogeographic areas worthy of further sampling effort and conservation protection. Using four methods of species discovery-incorporating both tree and distance based techniques-we report between 76 and 99 species-like clusters, i.e. between 20% and 33% of a priori identified taxonomic species were represented by more than one mtDNA lineage. There was a high degree of congruence between clusters, with 60% supported by three or four methods. Pacus of the genus Myloplus exhibited the most intraspecific variation, with six of the 13 species sampled found to have multiple lineages. Conversely, piranhas of the Serrasalmus rhombeus group proved difficult to delimit with these methods due to genetic similarity and polyphyly. Overall, our results recognise substantially underestimated diversity in the serrasalmids, and emphasise the Guiana and Brazilian Shield rivers as biogeographically important areas with multiple cases of across-shield and within-shield diversifications. We additionally highlight the distinctiveness and complex phylogeographic history of rheophilic taxa in particular, and suggest multiple colonisations of these habitats by different serrasalmid lineages.
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.