Consulta: creatorFacets:"Becker,Fernando G."
Registros recuperados: 2
Data/hora: 11/06/2024 08:55:44

Photo-identification as a technique for recognition of individual fish: a test with the freshwater armored catfish Rineloricaria aequalicuspis Reis &amp;amp; Cardoso, 2001 (Siluriformes: Loricariidae)
Provedor de dados: 83
Autores: Dala-Corte,Renato B.; Moschetta,Júlia B.; Becker,Fernando G.
Abstract Photo-identification allows individual recognition of animal species based on natural marks, being an alternative to other more stressful artificial tagging/marking techniques. An increasing number of studies with different animal groups has shown that photo-identification can successfully be used in several situations, but its feasibility to study freshwater fishes is yet to be explored. We demonstrate the potential use of photo-identification for intraspecific recognition of individuals in the stream-dwelling loricariid Rineloricaria aequalicuspis . We tested photo-identification in laboratory and field conditions based on the interindividual variability in abdominal bony plates. Our test yielded high correct matches in both laboratory (100%)...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Individual identification; Loricariid; Marking; Mark-recapture; Tagging.
Ano: 2016
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252016000100209

Influences of the area, shape and connectivity of coastal lakes on the taxonomic and functional diversity of fish communities in Southern Brazil
Provedor de dados: 103
Autores: Hartz,Sandra M.; Rocha,Elise A.; Brum,Fernanda T.; Luza,André L.; F.R.,Taís de; Becker,Fernando G.
ABSTRACT In this study we investigated the influence of landscape variables on the alpha taxonomic and functional diversity of fish communities in coastal lakes. We built an analytical framework that included possible causal connections among variables, which we analyzed using path analysis. We obtained landscape metrics for the area, shape and connectivity (estuary connectivity and primary connectivity to neighboring lakes) of 37 coastal lakes in the Tramandaí River Basin. We collected fish data from 49 species using standardized sampling with gillnets and obtained a set of traits related to dispersal abilities and food acquisition. The model that best explained the taxonomic diversity and functional richness took into account the shape of the lakes....
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Alpha diversity; Environmental filters; Limiting similarity; Neutral paradigm; Geographic information system.
Ano: 2019
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-46702019000100316