Pedro Sartori Manoel

• PhD
• Postdoctoral Fellow at Queen's University

There is increasing concern over rising salinity in freshwater ecosystems, which is often associated with de-icing salt usage in temperate regions that experience cold winters. Negative impacts of de-icing salts on the environment include changes to aquatic community composition and loss of biodiversity. Consequently, many municipalities are increa...

The Neotropical region hosts 4225 freshwater fish species, ranking first among the world's most diverse regions for freshwater fishes. Our NEOTROPICAL FRESHWATER FISHES data set is the first to produce a large‐scale Neotropical freshwater fish inventory, covering the entire Neotropical region from Mexico and the Caribbean in the north to the southe...

The length-weight relationship (LWR) and diet of a small trichomycterid catfish, Cambeva guareiensis, was studied based on 58 specimens captured in Corrente stream, Guareí River basin, São Paulo, Brazil. LWR analyses showed values of a ranged from 0.0097 to 0.0149 and b from 2.858 to 3.250. The analysis of the diet showed that high amounts of aquat...

Plastics are dominant pollutants in freshwater ecosystems worldwide. Scientific studies that investigated the interaction between plastics and freshwater biodiversity are incipient, especially if compared to the marine realm. In this review, we provide a brief overview of plastic pollution in freshwater ecosystems around the world. We found evidenc...

Agribusiness is one of the main economic activities in Brazil, which caused the removal of much of its natural vegetation for the expansion of monoculture areas. Once aquatic environments have a direct relationship with the surrounding terrestrial environment, it is essential to understand the monocultures’ impact on adjacent streams and, especiall...

The present study aims to verify possible changes in the functional feeding group (FFG) structure of benthic macroinvertebrates related to changes in headwater streams riparian vegetation. Streams with this vegetation fully present (forested), present only on one bank (intermediate) and absent (pasture) were studied. In general, there was low abund...

We investigated the spatial and temporal variation of the diet of the Brazilian whiptail Ameivula pyrrhogularis using lizards sampled in four Caatinga locations, during the rainy and dry seasons 2015-2016. We also evaluated the importance of diet in the transmission of helminths, considering that changes in the environment can influence the diet an...

Aim We investigated the long-term effects of a rural landscape on the structure and trophic organization of a fish assemblage. Methods We compared environmental data and data from fish assemblage structure and trophic organization sampled in a stream located in a rural area, within a time gap of 20 years. Results We observed only punctual changes...

The length‐weight relationships (LWRs) of five fish species are reported. The fishes were sampled between September and December 2016 with seine net (4 mm mesh size) in 15 headwater streams from the upper Paraná River basin, Southeastern Brazil.

Most of the world’s fish fauna is suffering from different types of human impacts and new conservation tools are required. The fish diet analysis is a tool that has been used to evaluate degradation processes of aquatic environments, however, few long-term studies are performed by several reasons (e.g., lack of funding, opportunity). Our aim was to...

The study of the diet of fish is an important tool to assess different levels of environmental degradation, since the availability of food in the environment is a key factor for the fish occurrence. The removal of riparian vegetation usually degrades environmental quality, as this vegetation has an important role in providing energy to the ecosyste...

The different land uses in agriculture can cause deforestation of riparian forest. The removal of this vegetation can lead to direct impacts on water bodies as changes in some abiotic variables. Thus, our aim was to test the effect of suppression of the riparian forest on the physical environment of streams. We sampled seven abiotic variables in 18...

Albinism is a genetic condition caused by an autosomal recessive gene that affects normal pigmentation in animals. In Neotropical freshwater fish fauna, albinism cases are extremely rare, with only 14 species recorded among more than 6000 described. Here, we describe the first reported case of albinism in the South American catfish Imparfinis mirin...

O objetivo deste trabalho foi montar redes ecológicas baseadas em dados da estrutura trófica da ictiofauna e verificar se a estrutura destas redes poderia ser relacionada com o fator espacial (diferenças nas características do habitat, como dimensão, tipo de entorno, substrato) e temporal (duas estações e dois anos de coleta). Na análise das redes...

O trabalho está vinculado ao projeto de extensão universitária “Paisagens do Brasil: galeria digital de fotos e vídeos sobre a flora e fauna do Pantanal”, financiado pela Pró-Reitoria de Extensão Universitária da Unesp, cujo objetivo é produzir e divulgar material didático com conteúdos atualizados para estudantes e professores do ensino básico, es...