A5082859679- Fish biology, ecology, and behavior
- Fish Biology and Ecology Studies
- Marine and fisheries research
- Coral and Marine Ecosystems Studies
- Fish Ecology and Management Studies
- Aquaculture Nutrition and Growth
- Ichthyology and Marine Biology
- Conservation, Biodiversity, and Resource Management
- Coastal and Marine Management
- Aquatic Ecosystems and Biodiversity
- Marine Bivalve and Aquaculture Studies
- Species Distribution and Climate Change
- Land Use and Ecosystem Services
- Wildlife-Road Interactions and Conservation
- Geography and Environmental Studies
- Fire effects on ecosystems
- Marine Ecology and Invasive Species
- Ecology and Vegetation Dynamics Studies
- Ocean Acidification Effects and Responses
- Crustacean biology and ecology
- Geotechnical Engineering and Soil Stabilization
- Animal and Plant Science Education
- Climate Change Communication and Perception
- Geotechnical and construction materials studies
- Construction Project Management and Performance
Universidade do Porto
2024
Universidade Federal de Alagoas
2014-2023
Energias de Portugal (Portugal)
2023
National Institute of Amazonian Research
2016
Universidade Federal do Amazonas
1996-2011
Fundación Universitaria del Área Andina
2011
University of Boyaca
2011
Max Planck Society
2000
Smithsonian Tropical Research Institute
1989
Fish conservation in South America is a pressing issue. The biodiversity of fishes, just as with all other groups plants and animals, far from fully known. Continuing habitat loss may result losses before full species diversity In this review, the main river basins (Magdalena, Orinoco, Amazon Paraná–La Plata system), together key aquatic habitats (mangrove‐fringed estuaries tropical humid, semi‐arid subtropical regions) are analysed terms their characteristics concerns. Habitat was concern...
In 1986 more than 8 million liters of crude oil spilled into a complex region mangroves, seagrasses, and coral reefs just east the Caribbean entrance to Panama Canal. This was largest recorded spill coastal habitats in tropical Americas. Many population plants animals both oiled unoiled sites had been studied previously, thereby providing an unprecedented measure ecological variation before spill. Documenation spread its biological begun immediately. Intertidal algae, associated...
Artisanal fisheries occur all over the tropics and provide an important source of protein income for many coastal communities. However, varied types magnitudes anthropogenic impacts threaten environmental, economic, socio-cultural sustainability this poorly studied fishing practice. This article reviews scattered literature on tropical artisanal fisheries, identifying key challenges to ensure future sustainability. Despite huge data shortfalls, there is considerable evidence that have a...
The present work aims to update a series of information about the regional fishing production, by presenting and characterizing contribution different sub-systems Amazon basin catch landed at main market Manaus, Brazil, from 1994 1996. Collectors specifically hired for this function registered key on fisheries. Thirty nine types or groups fish were found in production landed. Jaraqui (Semaprochilodus spp.), curimatã (Prochilodus nigricans), pacu (Myleinae), matrinchã (Brycon cephalus),...
The daggernose shark, Isogomphodon oxyrhynchus is endemic to the northern of South America from Trinidad and Tobago Tubarão bay in Maranhão state (Brazil) where collapsed since 1990's, due several gillnet fisheries for teleost fishes, targeting sharks, including itself, trawling shrimp. Based on gillnets with meshes 80–>200 mm, we analyzed intrinsic extrinsic vulnerabilities species through different scenarios investigating species' resilience. Samples were collected December 1989 September...
Abstract Questionnaires were used to collect data from the low‐Solimões/high‐Amazon region, Brazil, between December 1992 and February 1994. Gillnets, fishing rods castnets preferred gear used. Gillnets throughout year whilst other gears only in certain periods of year. The fish caught tended supply family needs but a high proportion sold regional markets. Curimatã ( Prochilodus nigricans ), pacu (various Myleinae) ruelo (young Colossoma macropomum ) most frequent species caught. Around 50%...
Given limited funds for research and widespread degradation of ecosystems, environmental scientists should geographically target their studies where they will be most effective. However, in academic areas such as conservation natural resource management there is often a mismatch between the geographic foci effort/funding needs. The former frequently being focused developed world while latter greater biodiverse countries Global South. Here, we adopt bibliometric approach to test this...
The extensive oil spill (> 2,900 km) that occurred in the southwestern Atlantic (2019/2020) increased vulnerability of Brazilian coast, affecting marine and coastal protected areas (MPAs). In addition to supporting conservation, MPAs are sustainably used by local populations help maintain ocean-dependent livelihoods. this sense, we aim assess socioeconomic human communities affected major spill. Using digital mapping, assessed 68 living or near 60 different categories were impacted...
Inland fisheries feed greater than 150 million people globally, yet their status is rarely assessed due to socio-ecological complexity and pervasive lack of data. Here, we leverage an unprecedented landings time series from the Amazon, Earth's largest river basin, together with theoretical food web models examine (i) taxonomic trait-based signatures exploitation in inland fish (ii) implications changing biodiversity for resilience. In both theory, find that multi-species diverse results a...
This study assessed the influence of seasonal fluctuation abiotic conditions (wet v. dry season) on functional diversity (FD) tropical coastal fish assemblages. Sampling was carried out in three regions north-east Brazil with contrasting coastlines (influenced by reef, lagoon and estuary). In each region, fishes were sampled from depth strata (10, 20 30 m) FD estimated using an index based key phenotypic behavioural characteristics. All had higher wet season at shallower depths, indicating...
Background. Assessing patterns in habitat utilization and changes the composition of biont assemblages is a key tool for efficient ecosystem conservation planning management. Nevertheless, use by juvenile fish still need more comprehension. Therefore, presently reported study investigated relations between type nursery ground structure tropical coastal area south-western Atlantic. Materials methods. From December 2009 to November 2010, we conducted monthly sampling ichthyofauna two types...
O presente trabalho visa contribuir para a conservação e manejo do mapará (Hypophthalmus marginatus), um importante recurso pesqueiro de exportação Amazonas o qual é necessário conhecer informações essenciais sua dinâmica populações. Para à esta finalidade, estabeleceu como objetivo identificar par otólito mais adequado leitura anéis etários, determinar os parâmetros crescimento (H. Amazônia Central, - Brasil. foi efetuado através da análise otólitos coletados no período dezembro 1996 á...
The influence of the flood pulse on fish populations has been posited, but infrequently tested or quantified. Here, we effect habitat population size, using Prochilodus nigricans as a case study species. Floodplain was based littoral zone area occupied by P. to feed. magnitude this in each hydrological year, moving (ML), expressed sum daily areas during advancing pulse, satellite-based passive microwave data. Annual size estimated age class, dynamic age-structured model (MULTIFAN-CL)...
Fishing resources are important generators of income and food for the rural urban people in Amazon. The present paper investigates fishing environmental variables determining production landed Manaus evaluates relative abundance commercial fishes different sub-systems Central Amazon basin. Information collected was used to test new catch index derived from multiple regressions with following significant variables: number fisherman days fishing; distance ground Manaus; amount ice carried...
A atividade comercial pesqueira na Amazônia Central é predominantemente direcionada para Manaus, porém o perfil das atividades pesqueiras efetuadas nos demais centros também fundamental planejamento do setor. Neste contexto, presente trabalho visa caracterizar da produção que abastece a cidade de Manacapuru, um dos principais urbanos Central. Os desembarques ocorreram partir canoas remo, motorizadas, barcos pesca e recreios. média mensal pescado desembarcado foi 175,36 ± 39,50 t em 2001...
Abstract The presence of researchers from Western ( i.e ., developed world) institutions in Amazonia has frequently been contentious due to fears ‘scientific imperialism’ or suspicions that they may be exerting undue influence over research agendas and knowledge production the detriment local researchers. Such negative perceptions are widespread, but not well substantiated. A more nuanced understanding these issues requires information on who is conducting how changed time. We performed a...
Climate change is altering climate patterns, mainly increasing the frequency and intensity of extreme events with potentially serious impacts on natural resources people that use them. Adapting to such will require integration scientific local (folk) knowledge, especially first-hand experiences perceptions resource users as fishers. In this study, we identify how commercial riverine fishers in Amazon remember climatic (flood drought) they face consequences fish availability.Data were...
Trait-based community descriptors have been widely used to make inferences about assembly processes. The level of traits discrimination (measurement resolution) can consequences for how good diversity patterns correlate with predictor variables. Here, we develop a novel framework evaluate: i) much information is lost when the measurement resolution functional lowered, and; ii) what extent morphological and phylogeny be as surrogates feeding strategy. We also tested whether affects ability...