Results 31 to 40 of about 139 (103)
Environmental DNA, Volume 7, Issue 4, July–August 2025.Using eDNA metabarcoding, we assessed fish diversity in isolated sinkholes in southern Brazil, uncovering signs of local extinction and species persistence. This approach offers a non‐invasive tool for biodiversity assessment and informs conservation efforts in unique karst environments.
Luz E. De la Ossa‐Guerra +5 more
wiley +1 more source
Memorias do Instituto Oswaldo Cruz, 1995 Two new species of Gyrodactylus Nordmann, 1832 (Platyhelminthes, Monogenoidea) are described from fishes collected from southeastern Brazil. Gyrodactylus geophagensis n. sp.
Walter A. Boeger, Flávio Popazoglo
doaj +1 more source
OBSERVATÓRIO DE LA ECONOMÍA LATINOAMERICANAA traíra é um peixe de relevância alimentar nos países amazônicos e que pode albergar parasitos causadores ou não de zoonoses. Com o objetivo de identificar os helmintos parasitando Hoplias aff. malabaricus Bloch, 1794 (Actinopterygii: Erythrinidae) do Rio Araguaia, cidade de Araguanã, Tocantins, Brasil, foram examinados 50 espécimes capturados entre ...
Thássia Silva Reis +6 more
openaire +1 more source
The fish fauna in tropical rivers: The case of the Sorocaba river basin, SP, Brazil
Revista de Biología Tropical, 2003 A survey was carried out on the fish species in the Sorocaba River basin, the main tributary of the left margin of the Tietê River, located in the State of São Paulo, Brazil. The species were collected with gill nets.
Welber Senteio Smith +2 more
doaj
Assessing fish diversity in abandoned mining ponds in Madre de Dios, Peru, using environmental DNA
Environmental DNA, Volume 6, Issue 1, January–February 2024.We surveyed four lentic systems in Madre de Dios, Peru: two abandoned mining ponds created by ASGM and two unmined oxbow lakes as a reference to assess fish recolonization. We compared two alternative eDNA processing methods and contrasted our results with historic data from traditional biodiversity monitoring. Our results indicate that eDNA could be a
Camila Timana‐Mendoza +4 more
wiley +1 more source
Boletim do Instituto de Pesca, 2018 Por intermédio da pesca, os pescadores exploram o ambiente aquático e estabelecem interações com o ambiente. Objetivou-se caracterizar a atividade pesqueira na comunidade de pescadores artesanais de Miguel Alves/PI, quanto aos apetrechos de pesca ...
Kelly Polyana Pereira SANTOS +4 more
doaj +1 more source
Brazilian Journal of BiologySpatial and temporal distribution of larvae and juveniles of trahira, Hoplias aff. malabaricus (Erythrinidae), and their relationship with environmental parameters in the Upper Paraná River floodplain were analyzed. Sampling of larvae and juveniles of H.
A. BIALETZKI +3 more
doaj +1 more source
Habitat preferences of common native fishes in a tropical river in Southeastern Brazil
Neotropical IchthyologyWe determined in this study the habitat preferences of seven native fish species in a regulated river in Southeastern Brazil. We tested the hypothesis that fishes differ in habitat preference and that they use stretches of the river differing in ...
Marcus Rodrigues da Costa +3 more
doaj +1 more source
Brazilian Journal of BiologyThe present study is inspired by the great wealth of species exhibited by the ichthiofauna. Not only concepts and techniques of ecology deserve attention, but also knowledge in other biological areas, such as zoology and anatomy, are necessary.
D. Peretti, IF. Andrian
doaj +1 more source
Ichthyofauna from the Emas National Park region: composition and structure
Brazilian Journal of BiologyThe relationship between habitats and the ichthyofauna composition in the Parque Nacional das Emas (PNE) and adjacent areas (the Araguaia and Sucuriú rivers) are provided and could be applied in determining the Park's future zoning.
E. Benedito-Cecilio +5 more
doaj +1 more source