Evidence map›Paper›PMID 42848596›Full record

ArticleRevista brasileira de parasitologia veterinaria = Brazilian journal of veterinary parasitology : Orgao Oficial do Colegio Brasileiro de Parasitologia Veterinaria2026

Description of a new species of Therodamas (Crustacea: Ergasilidae) from the gills of Trachelyopterus galeatus (Auchenipteridae) from the Brazilian Amazon.

David Sales Sousa Valentim, Leonardo Oliveira Mota-Júnior, Edson Aparecido Adriano, Marcos Tavares-Dias, Marcos Sidney Brito Oliveira

Abstract read
In one paragraph

Article in Revista brasileira de parasitologia veterinaria = Brazilian journal of veterinary parasitology : Orgao Oficial do Colegio Brasileiro de Parasitologia Veterinaria, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

0numbers the graph read from it
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0citing papers in PubMed
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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

0 citing papers in PubMed.

No citing paper in PubMed yet.

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.

David Sales Sousa ValentimUniversidade do Estado do Amapá - UEAP, Macapá, AP, Brasil.
Leonardo Oliveira Mota-JúniorUniversidade Federal do Amapá - UNIFAP, Programa de Pós-graduação em Biodiversidade Tropical - PPGBio, Macapá, AP, Brasil.
Edson Aparecido AdrianoUniversidade Federal de São Paulo - UNIFESP, Diadema, SP, Brasil.
Marcos Tavares-DiasUniversidade Federal do Amapá - UNIFAP, Programa de Pós-graduação em Biodiversidade Tropical - PPGBio, Macapá, AP, Brasil.
Marcos Sidney Brito OliveiraUniversidade do Estado do Amapá - UEAP, Macapá, AP, Brasil.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Therodamas comprises copepods that parasitize marine, brackish-water and freshwater fishes, and currently includes eight valid species. In this study, a new species for this genus was described from the gills of Trachelyopterus galeatus collected in the Jari River, eastern Amazon, Brazil. Parasites were analyzed using light microscopy, scanning electron microscopy and SSU-rDNA sequences. A total of 539 parasites has recovered, with prevalence of 69%, mean intensity of 18 parasites per host and mean abundance of 12 (standard deviation = 12.8). The new species, Therodamas anujauensis n. sp., is characterized by the absence of cephalic lobes, an elongated neck and a distinctive combination of setae and spines on the swimming legs. Phylogenetic analyses confirmed its placement within Ergasilidae and revealed a close relationship with Therodamas longicollum. Molecular dating suggested that the Therodamas lineage originated approximately 59.6 million years ago, whereas the divergence between T. anujauensis n. sp. and T. longicollum occurred about 6.03 million years ago. This study increases the number of known species of Therodamas from eight to nine and expands knowledge of parasite diversity in the Amazon region.

Indexed as

CopepodaFishesGillsAnimalsBrazilPhylogeny

Identifiers

PMID42848596
PMCPMC13671224

What OpenQuestion holds

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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.