A5035450401- Fish Biology and Ecology Studies
- Fish Ecology and Management Studies
- Fish biology, ecology, and behavior
- Insect Utilization and Effects
- Parkinson's Disease and Spinal Disorders
- Insect and Arachnid Ecology and Behavior
- Bone and Joint Diseases
- Marine and fisheries research
- Aquatic Ecosystems and Biodiversity
- Animal and Plant Science Education
Universidade Estadual de Maringá
2011-2021
Universidade Estadual de Mato Grosso do Sul
2009-2011
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...
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...
In order to describe some aspects of the population ecology Bryconamericus stramineus in Guiraí River basin, upper Paraná samples were taken bimonthly from October 2006 August 2007 at seven sites basin. A total 960 individuals, including 532 females, 316 males, and 112 undetermined sex, collected. significant variation sex ratio was observed (Χ2 = 32.82; p < 0.001). Females larger (59.7 mm) than males (58.9 mm); however, showed a angular growth coefficient (b) females. It estimated that...
Some aspects of the population ecology Phallotorynus pankalos in a first-order stream Iguatemi River Basin are described based on samples taken from March/2007 to February/2008. A total 2680 individuals, including 948 males and 1732 females was collected. Adult larger than males; theirs mean fecundity estimated as 6.5 embryos/female. There strong correlation between standard length ovary weight, relative number embryos. The size first maturation 50% female 18.24 mm lenght. High mortality...
Abstract Bayesian inference was used to estimate the main population parameters (sex ratio, L 50 , LWR and somatic growth) evaluate sexual dimorphism growth patterns (isometric / allometric monophasic biphasic of Astyanax paranae Upper Paraná River. This study brings three statistical differentials: (a) reparametrisation logistic model as a function ; (b) reparameterisations models based on exponential piecewise linear regression hypotheses polyphase growth; (c) first application recently...
A competicao entre especies e um dos principais fatores que regulam o tamanho populacional a migracao de animais. Devido as disputas por recursos alimentares espaco, individuos ou populacao uma especie podem sofrer restricoes comportamentais sociais interferencia outra especie. O experimento proposto neste manuscrito induz em pequena escala tem objetivo observacao desse processo ecologico formigas aspectos associados. Os educadores ciencias biologia poderao abordar varios dinâmicos das...