A5084429079- Fish biology, ecology, and behavior
- Fish Ecology and Management Studies
- Fish Biology and Ecology Studies
- Freshwater macroinvertebrate diversity and ecology
- Science and Education Research
- Education and Digital Technologies
- Aquatic Invertebrate Ecology and Behavior
- Education Pedagogy and Practices
- Ichthyology and Marine Biology
- Environmental and biological studies
- Geography and Environmental Studies
- Aquaculture Nutrition and Growth
Universidade Federal de São Carlos
2012-2025
Universidade Federal de Lavras
2018-2023
Companhia Energética de Minas Gerais (Brazil)
2018-2021
Universidade Federal de Minas Gerais
2021
The Neotropical region hosts 4225 freshwater fish species, ranking first among the world's most diverse regions for fishes. Our NEOTROPICAL FRESHWATER FISHES data set is to produce a large-scale inventory, covering entire from Mexico and Caribbean in north southern limits Argentina, Paraguay, Chile, Uruguay. We compiled 185,787 distribution records, with unique georeferenced coordinates, represented by occurrence abundance data. number of species numerous orders are as follows: Characiformes...
Abstract Biotelemetry, ichthyoplankton and genetic data can provide detailed information about the migratory dynamics reproductive cycle of freshwater fishes. However, few studies have combined these techniques in Neotropical systems. The objective this study was to examine Prochilodus costatus São Francisco River watershed, south‐east Brazil, by comparing ecological importance two rivers species, an undammed segment a dammed one its main tributaries, Pará River. In total, 215 fish were...
Recruitment dynamics of Neotropical migratory fishes are widely studied in river–floodplain systems, where the flood pulse and wetlands play a central role. In semiarid flow regime is less predictable waterbodies intermittent, may employ different recruitment strategies. We investigated factors affecting fish (Prochilodus hartii) river basin (Jequitinhonha River, Brazil) subjected to regulation. sampled eggs, larvae, young-of-the-year (YOY), subadults over multiple years at several sites...
Abstract The role of fish translocation upstream dams, for the conservation migratory species, is controversial. An important but still unaddressed question whether patterns are affected, after events, by a hydropower dam. In existing useful means to test this might be compare behaviour translocated with those in undammed river segments same region. objective study was evaluate effectiveness promoting access spawning areas through behavioural approach using Prochilodus costatus as model São...
AIM: This work aimed to describe a first record of Misgurnus anguilicaudatus, Cantor 1842 in São Paulo state, as well your potential impacts on native populations. METHODS: The specimen was caught by eletro-fishing device, Itaguapeva river, Ribeira do Iguape river basin, Ibiuna (SP), Brazil. Later, it fixed 10% formalin and taken laboratory for species identification, morphometric data evaluation, diet analysis stage gondal maturity. RESULTS: individual an adult female, without parasites...
In South America, knowledge of major spawning sites is crucial for maintaining migratory fish populations. this study, we aimed to understand the spatio-temporal distribution eggs in upper São Francisco River using high sampling frequency and DNA metabarcoding identification. We evaluated possible effects non-molecular identification decreased on determination breeding periods. Collections were carried out every three days from November 2019 February 2020. found that, if had assumed that all...
AIM: Life-history strategies in fish include essential parameters related to offspring survivorship, fecundity and time of reproduction, which represent adaptive traits that enable a species deal with spatial temporal variability abiotic conditions. This study aimed compare reproductive associated life-history theory for three Hyphessobrycon from two lentic environments (four natural oxbow lakes man-made reservoir) Mogi Guaçu River, upper Paraná River basin. METHODS: Specimens were collected...
Considering that reproduction studies are fundamental to understand the life cycle of organisms, this study aimed investigate reproductive strategies saguirus Cyphocharax nagelii and Steindachnerina insculpta in a dam Mogi Guaçu River, (SP). Specimens were collected between August 2005 July 2006 using gillnets with mesh sizes ranging from 1.5 5.0 cm adjacent knots. Reproductive dynamics, body condition, period, spawning type fecundity analyzed both species. The condition reflected differed...
ABSTRACT Details of migration dynamics Neotropical fishes are poorly understood. This study aimed to examine upstream (spawning) and downstream (post-spawning) speeds, curimatá-pioa (Prochilodus costatus) in the São Francisco River basin, southeast Brazil. Most movements were recorded October November, two well-defined windows, frequent from December March. Fish migrated at an average speed 34.4 km day-1 no significant differences detected their between sexes window they selected migrate. No...
ABSTRACT Trophic structure of fish assemblages is one the most sensitive indicators changes in streams environments. Since it crucial to understand response trophic groups habitat alteration, our study aimed address this research gap by assessing influence substrate composition, meso-habitat variability, and bank stability, on richness, biomass, number individuals carnivores, invertivores, omnivores, herbivorous-detritivores. Using an electrofishing device, we sampled 13 Atlantic rainforest...
AIM: in this study we present data from the diet of Astyanax vermilion which were used as a tool to compare two sites streams with different vegetation cover Ribeirão Limoeiro, Cachoeira River Basin, BA. METHODS: Four samples taken (March, June, September and December) using electrofishing collection method contiguous headwaters: stretch without riparian vegetation. RESULTS: The qualitative composition was analyzed by frequency occurrence. allochthonous resources vegetal origin made up bulk...
Abstract Studies of migratory fish species in Neotropical Basins have generally focused on adult fishes, especially their reproductive migration, whereas sites growth and refuge juveniles remain poorly investigated. We aimed to evaluate if smaller rivers play a role the life cycle these species. used 13 different sizes upper São Francisco Basin, Brazil. found that rivers, when draining regions close floodplains, were first places where moved after leaving floodplain lakes. also individuals...
Abstract The migratory behavior and spawning of Curimatá‐pacu ( Prochilodus argenteus ) were assessed in a free‐flowing remnant spanning approximately 450 km. This evaluation was conducted using radio‐tagging egg sampling, with identification performed through metabarcoding techniques. Among the studied individuals, half migrated 100–365 km upstream, primarily response to initial rise river discharge at onset wet season. Conversely, remaining fish did not exhibit upstream movement,...
Abstract: Aim This study aimed to evaluate whether the upper São Francisco River basin floodplain is still used as a nursery by migratory fish and present current status of area’s ichthyofauna after almost 40 years since only survey was conducted in region. Methods Sampling occurred seven perennial lagoons six temporaries from or its direct tributaries using gillnets trawls. Temperature, pH, transparency each lagoon were measured. The estimated richness calculated, assemblage both temporary...
Abstract Although biotelemetry studies bring useful information, tagging is a highly invasive procedure. For this reason, we assess if intracoelomic alters survivorship, weight gain and/or reproductive capacity of neotropical migratory fish. In August 2016, 60 fish were equally and randomly distributed among 3 treatments: Control (anesthesia), sham surgery (anesthesia surgery), true (anesthesia, tagging). Surveys for tag expulsion performed periodically from through spawning (November/2016),...
ABSTRACT Motivation Freshwater ecosystems have been heavily impacted by land‐use changes, but data syntheses on these impacts are still limited. Here, we compiled a global database encompassing 241 studies with species abundance (from multiple biological groups and geographic locations) across sites different categories. This compilation will be useful for addressing questions regarding change its impact freshwater biodiversity. Main Types of Variables Contained The includes metadata each...
Determining the number of fish that use a fishway is essential to fisheries management but counting all can be impracticable due labor and cost. We present daily run-size estimation (DARSE) method, which uses systematic sampling estimate per species pass through (daily run size, D). The DARSE method makes it possible determine minimum fraction each hour (or hourly samples) day necessary D with known accuracy. apply seven most abundant (other grouped under ‘Others’) recorded in video images...