Phenotypic and behavioral variation as a mechanism behind the invasive potential of a predatory neotropical fish

MRC Gaspar, AA Agostinho, PA Catelani, R Fernandes… - Hydrobiologia, 2024 - Springer
Modern biological invasions represent a major facet of the Anthropocene, yet the invasive
potential of species remains poorly understood. In this context, this study compared …

Individual specialization is the highest in generalist populations from intermediary to high trophic positions in tropical freshwater fishes

C Brazil‐Sousa, BE Soares, R Svanbäck… - Austral …, 2024 - Wiley Online Library
Individual specialization (IS) refers to intrapopulation variation in resource use unrelated to
ontogeny, sexual dimorphism, or discrete morphological variation. A broad niche increases …

A multi-evidence approach in an Amazonian River based on land use, water quality, histopathological effects and habitat selection behavior in fish

DCVR Silva, GC Silva, DH Siqueira-Silva, T Bazzan… - Chemosphere, 2024 - Elsevier
The Amazon rivers constitute the largest river basin in the world, with a high level of
biodiversity. The Tocantins River is one of the most important rivers in this region, which has …

[HTML][HTML] Fishers' knowledge on abundance and trophic interactions of the freshwater fish Plagioscion squamosissimus (Perciformes: Sciaenidae) in two Amazonian …

MCF Dutra, PER Pereyra, G Hallwass… - Neotropical …, 2023 - SciELO Brasil
Small-scale fisheries provide income and food security to local peoples around the world. In
the Brazilian Amazon, the pescada (Plagioscion squamosissimus) is among the fishes that …

Ichthyofauna of the Nascentes do Rio Parnaíba National Park: watershed divide in the main agricultural encroachment area in the Brazilian Cerrado

SC Silva, LS Medeiros, MF Bezerra, MJ Silva… - Biota …, 2023 - SciELO Brasil
Abstract The Nascentes do Rio Parnaíba National Park (NPNP), located in Brazilian
Cerrado, protects portions of three river basins: headwaters of Parnaíba, a small portion in …

A especialização individual é maior em populações generalistas de posições tróficas intermediárias a altas em peixes tropicais de água doce

C Brazil‐Sousa, BE Soares, R Svanbäck… - Austral …, 2024 - Wiley Online Library
A especialização individual (EI) refere‐se à variação intrapopulacional no uso de recursos
não relacionada à ontogenia, ao dimorfismo sexual ou à existência de morfotipos definidos …

New species of Rhyacoglanis (Siluriformes: Pseudopimelodidae) from the upper rio Tocantins basin

OA Shibatta, L Souza-Shibatta - Neotropical Ichthyology, 2023 - SciELO Brasil
A new species of Rhyacoglanis from the upper rio Tocantins basin is described based on
morphological and molecular data. The new species differs from the congeners by its color …

Hydropower Plants and Ichthyofauna in the Tocantins–Araguaia River Basin: Challenges for Planning and Approaches to Ichthyofauna Conservation

MP Obeso, EE Marques, TLO Guedes, JFM Silva… - Sustainability, 2024 - mdpi.com
The management of water resources is a complex issue, and the conservation of fish and
fishery resources is a growing challenge given the increase in the number of hydroelectric …

Taxonomic revision of Sturisoma Swainson, 1838 (Loricariidae: Loricariinae), with descriptions of four new species

A Londoño‐Burbano, MR Britto - Journal of Fish Biology, 2024 - Wiley Online Library
A taxonomic revision of Sturisoma is presented. Individuals including both type and non‐
type specimens of all valid species were examined. Sturisoma was found to comprise 10 …

Identification of fish specimens of the Tocantins River, Brazil, using DNA barcoding

RC Lima, SR de Lima, MS Rocha… - Journal of Fish …, 2024 - Wiley Online Library
The fish fauna of the Tocantins River possesses many endemic species; however, it is little
studied in molecular terms and is quite threatened by the construction of several …