A5081881594- Fish Ecology and Management Studies
- Fish biology, ecology, and behavior
- Fish Biology and Ecology Studies
- Aquatic Ecosystems and Phytoplankton Dynamics
- Aquatic Invertebrate Ecology and Behavior
- Freshwater macroinvertebrate diversity and ecology
- Marine and fisheries research
- Biological Control of Invasive Species
- Aquatic Ecosystems and Biodiversity
- Coastal wetland ecosystem dynamics
- Aquaculture Nutrition and Growth
- Thermal and Kinetic Analysis
- Photosynthetic Processes and Mechanisms
- Physiological and biochemical adaptations
- Constructed Wetlands for Wastewater Treatment
- Wildlife Ecology and Conservation
- Animal Behavior and Reproduction
- Marine Biology and Ecology Research
- Insect Pest Control Strategies
- Industrial Gas Emission Control
- Ichthyology and Marine Biology
- Coral and Marine Ecosystems Studies
- Soil erosion and sediment transport
- Isotope Analysis in Ecology
- Light effects on plants
Universidade Estadual de Maringá
2013-2025
Instituto Superior Técnico
2009
Abstract Free‐flowing tributaries are important for the maintenance of fish diversity in dammed systems. In relation to reproduction species, role a free‐flowing tributary was evaluated and compared with that downstream large dams Madeira River, one main Amazon River. Two hypotheses were tested: (i) densities ichthyoplankton differ between tributaries; (ii) contributes greater larvae species assemblage structure stem than tributary. Fish eggs sampled at five sites: each (Jamari – Machado...
Abstract In Brazil, Marine Extractive Reserves—MERs (Reservas Extrativistas Marinhas) represent the most significant government-supported effort to protect common property resources upon which traditional small-scale fishers depend. From an initial experience in 1992, MERs have expanded countrywide, now encompassing 30 units (9,700 km2) and nearly 60,000 fishers. Despite such escalating interest model, there is little research on effectiveness of MERs. this article, we discuss relevant parts...
Abstract Aim We tested the hypothesis that diversity and abundance of aquatic macrophytes are negatively related with Eichhornia crassipes in its introduced range, but not native range. Location Upper Paraná River Floodplain, Brazil Southeast China. Methods sampled patches (native range) China (introduced along a biomass gradient E. . For each patch, we obtained values species richness percentage cover, as response variables regression models. also used accumulation curves to quantify total...
Abstract Human activities affecting freshwater ecosystems, such as regulation of rivers by dams and introduction non‐native species, are recognised major threats to biodiversity, with fish communities strongly impacted. We evaluated patterns functional diversity native species in local assemblages the upper Paraná River floodplain over a 33‐year period (1986–2019) three different degrees alteration (highly altered, moderately little altered). also examined effect on investigated responses...
Under increasing nutrient loading, shallow lakes may shift from a state of clear water dominated by submerged macrophytes to turbid phytoplankton or shaded floating macrophytes. How such regime shifts mediate the relationship between taxonomic and functional diversities (FD) lake multifunctionality is poorly understood. We employed detailed database describing over 12-year period during which has displayed all three states (clear, shaded) investigate how species richness, FD fish...
Fish reproductive guilds were used to evaluate the responses of species with different strategies during two periods post‐dam construction. The data for comparisons collected in upper Paraná River floodplain (Brazil), downstream Porto Primavera dam, 2 and 10 years after impoundment. abundance (catch per unit effort, CPUE ), richness, evenness structure communities, all within guilds, test hypothesis that these metrics vary spatially temporally. influence damming on diversity fish varied...
Knowledge about chelonians in Brazil remains limited, especially concerning basic research on these organisms. Considered one of the most threatened vertebrate group, are negatively affected by different factors such as anthropic pressure. Therefore, this study had two main goals: to describe freshwater turtle assemblage within urban and periurban area Maringá Sarandi, Southern Brazil, well compare composition between areas accessed people inaccessible areas. Fieldwork was conducted six...