'Disentangling'the advantages from gillnets in freshwater small-scale fisheries in the Brazilian Amazon
G Hallwass, FW Keppeler, LH Tomazoni-Silva… - Reviews in Fish Biology …, 2023 - Springer
Gillnets, which are frequently used in small-scale fisheries (SSF), raise concerns regarding
bycatch and conservation. This study evaluates the context of use and the potential …
bycatch and conservation. This study evaluates the context of use and the potential …
Participatory research with fishers to improve knowledge on small-scale fisheries in tropical rivers
RAM Silvano, G Hallwass - Sustainability, 2020 - mdpi.com
Freshwater small-scale fisheries sustain millions of livelihoods worldwide, but a lack of
monitoring makes it difficult to check the sustainability of these fisheries. We aim to compare …
monitoring makes it difficult to check the sustainability of these fisheries. We aim to compare …
'Taking fishers' knowledge to the lab': an interdisciplinary approach to understand fish trophic relationships in the Brazilian amazon
Trophic levels can be applied to describe the ecological role of organisms in food webs and
assess changes in ecosystems. Stable isotopes analysis can assist in the understanding of …
assess changes in ecosystems. Stable isotopes analysis can assist in the understanding of …
Food web modeling indicates the potential impacts of increasing deforestation and fishing pressure in the Tapajós River, Brazilian Amazon
In the Tapajós River, Brazilian Amazon, fishing is an important activity, especially for low-
income riverine populations. Unfortunately, the Tapajós River fish diversity and abundance …
income riverine populations. Unfortunately, the Tapajós River fish diversity and abundance …
Fishers' knowledge indicates that collective benefits outweigh the individual costs of coexisting with dolphins
G Hallwass, PER Pereyra, KC Vieira… - Journal for Nature …, 2024 - Elsevier
Understanding interactions between small-scale fishers and endangered dolphins is crucial
for informing coexistence strategies. We investigated the perceptions and encounters of 123 …
for informing coexistence strategies. We investigated the perceptions and encounters of 123 …
[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 …
the Brazilian Amazon, the pescada (Plagioscion squamosissimus) is among the fishes that …
Protected areas and frugivorous fish in tropical rivers: Small‐scale fisheries, conservation and ecosystem services
P Nagl, G Hallwass, LH Tomazoni‐Silva… - Aquatic …, 2021 - Wiley Online Library
Frugivorous fish provide often conflicting ecosystem services of seed dispersal and food
provisioning in tropical rivers. Fishing may reduce the size and abundance of frugivorous …
provisioning in tropical rivers. Fishing may reduce the size and abundance of frugivorous …
Integrating fishers' knowledge on fish use with ecological networks to assess the 'silent threat'of mercury contamination in tropical marine and freshwater fisheries
PER Pereyra, A Ospina‑Alvarez, MCF Dutra… - Environment …, 2024 - Springer
Small-scale fisheries (SSFs) are important sources of livelihood but are vulnerable to
anthropogenic environmental changes, including heavy metal pollution, such as mercury …
anthropogenic environmental changes, including heavy metal pollution, such as mercury …
A new species of Geophagus (Teleostei: Cichlidae): Naming a cichlid species widely known in the aquarium hobby as 'Geophagus sp. Tapajos red head'
J Chuctaya, P Nitschke, MC Andrade… - Journal of Fish …, 2022 - Wiley Online Library
A new species of Geophagus sensu stricto is described from the Tapajos River basin, Brazil,
elevating the number of species of the genus to 21. The new species is of commercial …
elevating the number of species of the genus to 21. The new species is of commercial …
A new species of Odontostilbe cope (Characiformes: Cheirodontinae) from rio Madeira basin diagnosed based on morphological and molecular data
J Chuctaya, WM Ohara… - Journal of Fish Biology, 2020 - Wiley Online Library
ABSTRACT A new species of Odontostilbe is described from the rio Jaciparaná, rio Madeira
basin, Rondônia, Brazil. Odontostilbe pacaasnovos differs from all its congeners, except O …
basin, Rondônia, Brazil. Odontostilbe pacaasnovos differs from all its congeners, except O …