A5068123332- Fish biology, ecology, and behavior
- Fish Biology and Ecology Studies
- Fish Ecology and Management Studies
- Aquaculture Nutrition and Growth
- Ichthyology and Marine Biology
- Aquatic Ecosystems and Phytoplankton Dynamics
- Marine and fisheries research
- Mercury impact and mitigation studies
- Isotope Analysis in Ecology
- Parasite Biology and Host Interactions
- Helminth infection and control
- Hematological disorders and diagnostics
- Crustacean biology and ecology
- Pharmaceutical and Antibiotic Environmental Impacts
- Environmental Toxicology and Ecotoxicology
- Pituitary Gland Disorders and Treatments
- Insect and Arachnid Ecology and Behavior
- Water Quality and Pollution Assessment
- Aquatic Invertebrate Ecology and Behavior
- Plant and animal studies
- Reproductive biology and impacts on aquatic species
- Geography and Environmental Studies
- Bird parasitology and diseases
- Identification and Quantification in Food
- Animal Behavior and Reproduction
Universidade Estadual de Maringá
2016-2025
Centro de Excelência em Bioinformática
2022
European Union of Medical Specialists
1999-2009
Universidade Estadual do Oeste do Paraná
2008
The effects of a dam closure (Porto Primavera Dam) on reproduction the main species that use floodplain located below nursery area were determined. Specifically, we examined, before and after dam, spatial distribution larvae differences in density according to life strategy (migratory non-migratory species). Fifteen points distributed along channels Paraná, Ivinheima Paranapanema rivers sampled, between 1997 2001, (October December 1998—pre; January 1999 March 2001—post closure), during...
The purpose of this study was to evaluate the role abiotic factors on fish larvae occurrence. Samplings were carried out monthly at 12 stations (grouped in four areas) Amambaí, Ivaí and Paraná rivers Itaipu Reservoir (upper River basin), from October 1994 January 1995 (spawning season). Simultaneously, we obtained water temperature, pH, electrical conductivity, dissolved oxygen, level, velocity, rainfall. Principal Component Analyses (PCA) Detrended Correspondence (DCA) applied summarize...
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...
Studies on the occurrence, temporal distribution and nychthemeral variation of Macrobrachium amazonicum (Heller, 1862) were undertaken in Leopoldo's Inlet, upper Paraná River, Porto Rico, Paraná, Brazil. Seventeen thousand sixty specimens (11,786 larvae 5,274 juveniles) captured with a conicalcylindrical plankton net mesh 0.5mm monthly samples between February 1991 1992. Results show that greatest densities (301.83 larvae/10m³) juveniles (168.8/10m³) this species caught December 1991....
Abstract Neotropical Ichthyology promotes the Special Issue (SI) “Human impacts and loss of freshwater fish diversity” with purpose publishing relevant scientific articles on current biodiversity crisis fishes in Anthropocene. The SI is composed 22 publications, being two review 20 original articles. A total 107 researchers contributed to these papers, involving 44 institutions based Brazil six other countries. Published investigated main anthropic activities their diversity, special focus...
Information on ichthyoplankton is an important tool in determining reproduction periods that - if associated to environmental variables allows for inferences about the factors regulate their intensity, beginning, and ending. In this context, study aims establish (i) composition; (ii) temporal variations overall density of eggs larvae among most taxa; (iii) influence some abiotic biotic these organisms' abundance. Ichthyoplankton sampling was undertaken during period between April 2005 March...
The effect of fish larvae on the diel vertical migration zooplankton community was investigated in two tropical lakes, Finado Raimundo and Pintado Mato Grosso do Sul State, Brazil. Nocturnal diurnal samplings were conducted limnetic region each lake for 10 consecutive months from April 2008 to January 2009. presented a wide range responses predation pressure exerted by both environments, while showed typical pattern normal migration. Our results also demonstrated that is an important...
Abstract This study aimed to evaluate the effect of extreme climatic events on fish reproduction by comparing density eggs and larvae in two consecutive, but contrasting, reproductive cycles: one atypically dry other with intensive rains caused a strong El Niño event. Samples were collected fortnightly between December February 2014-2015 (drought cycle) 2015-2016 (wet at six sampling sites along Sapucaí-Mirim River, southeastern Brazil. The wet cycle presented higher (around 10 times more)...
Abstract Aim: This study uses the abundance of fish eggs and larvae to evaluate importance main channel Paraná River adjacent areas floodplain, in last dam-free stretch Brazilian territory, for spawning development different reproductive guilds, order obtain subsidies assist management conservation policies this area, focusing on maintenance areas. Methods Data were taken quarterly from August 2013 May 2015, 25 sites, grouped into three biotopes: channel, tributaries lagoons. Possible...
Abstract: Aim This study aimed to assist in guiding research with eggs and larvae of continental fish Brazil, mainly the knowledge early development, as well present state art point out gaps future directions for development researches area. Methods The literature review was carried electronic platforms studies were examined investigate whether any addressed morphological description and/or larvae. Results We found 121 studies, including scientific articles, theses, dissertations, chapters...
Larvae feeding selectivity of Iheringichthys labrosus , Hypophthalmus edentatus and Plagioscion squamosissimus was assessed, examining the role mouth gape in prey selection. Fish larvae were sampled Itaipu Reservoir (Brazil–Paraguay). H. larvae, with small similar sizes, exhibited slightly different diets; I. preferred cladocerans ( Bosmina hagmanni huauriensis Bosminopsis deitersi ) rotifer Brachionus calyciflorus . however, primarily ingested B. Ceriodaphnia cornuta Daphnia gessneri...
Researches on ichthyoplankton seems to be an important tool identification of spawning areas and periods for freshwater fish. Ichthyoplankton was sampled monthly in the headwaters Cuiabá River, upper Paraguay River basin, (Mato Grosso State, Brazil), four its tributaries, between November 2007 March 2008, evaluate spatial temporal distribution fish eggs larvae influence regional local variables their distribution. In total, 22,067 1,045 were collected. A significant negative correlation...
Natural and induced disturbances greatly influence the temporal distribution of ichthyoplankton abundance. This study assesses compares variability fish larvae assemblages in controlled free environments to determine environment variables on main taxa these systems. The was conducted at Chapecó (without dam impact) Ligeiro (with river mouths, which are located upper Uruguay River. Samples were made between October 2001 March 2004 during three reproductive periods. composed small medium-sized...
O presente estudo caracterizou o desenvolvimento inicial de Brycon hilarii (Valenciennes, 1850) através caracteres morfométricos e merísticos analisou as relações entre características morfométricas das larvas ao longo do usando modelos regressão linear, quadrática linear por partes. material foi obtido nas bacias dos rios Cuiabá Manso, Mato Grosso, Brasil, março 2000 2004. Os indivíduos foram identificados separados acordo com grau da notocorda e, posteriormente, medidos contados os...
We provide morphological and morphometric descriptions of the developmental stages Parauchenipterus galeatus, from floodplain Upper Paraná River. Specimens were obtained by induced spawning. The species has large adhesive eggs with a double membrane. incubation period is long, 65 hours at 27°C. larvae are well developed hatching, relatively rapid larval development. Analysis data showed that body parts P. galeatus grow proportionately.
Fish larvae and adults are morphologically distinct from each other have different ecological requirements. Research on the dynamics of ichthyoplankton provides valuable information about early stages life cycle fish. This study analyzed temporal spatial distribution larval three migratory species - Salminus brasiliensis (Cuvier, 1816), Prochilodus lineatus (Valenciennes, 1836) Pseudoplatystoma corruscans (Agassiz, 1829) to identify possible spawning areas in last lotic remnant upper Paraná...
The aim of this work was to study the eggs and larvae ‘curvina’, specifically examination spatial temporal variation, location spawning dispersal grounds verification relationship between occurrence environmental variables. Sixteen collection sites were established in Baía River, Brazil, grouped into four areas. Collections carried out February 1999 April 2000. Spatial variations analysed using ANOVA. Identification development stage distribution. variables determined Principal Components...
Abstract Flow‐dependent fish specialists require specific conditions for reproduction, so the success and reproductive intensity of these animals are determined by flood regime. Thus, this study investigated spatial temporal patterns fish, especially migratory Prochilodu s species (flow‐dependent specialists) in an unusual period low flow Pará River sub‐basin, one main tributaries upper São Francisco River. For this, ichthyoplankton collections were carried out between November 2013 February...