RT Journal Article
T1 Fish Ecology of the Alto Madre de Dios River Basin (Peru): Notes on Electrofishing Surveys, Elevation, Palm Swamp and Headwater Fishes
A1 Tobes, Ibon
A1 Ramos Merchante, Adrián
A1 Araújo Flores, Julio Manuel
A1 Pino del Carpio, Andrea
A1 Ortega, Hernán
A1 Miranda, Rafael
AB Our study analyzes the distribution of fish communities related to the environmentalvariables of the Alto Madre de Dios River, an Andean-Amazon watershed of southern Peru, between300 and 2811 m a.s.l. within the Manu Biosphere Reserve. We provide new ecological and diversitydata on fishes for these poorly studied rivers and new data for palm swamp habitats. With electricfishing techniques, we collected a total of 1934 fish specimens belonging to 78 species, 42 generaand 15 families. To assess main patterns of diversity we combined SIMPER and ANOSIM withcanonical correspondence analysis to obtain an overview of the community structure of fish andtheir distribution related to aquatic habitats. Our results show an important shift on fish diversity at700 m a.s.l. separating headwater and middle-lowland communities. Electrofishing was a hindrancedue to the depth, flow and low conductivity of the rivers, but also allowed us to capture fish notobserved with other techniques. We also compared the use of elevation with slope as an alternativevariable for statistical analysis. Our results show that slope offers a solid and equivalent explanationfor fish distribution variability, avoids redundance, and instead of giving geographical data offersecologically solid information.
PB MDPI
SN 2073-4441
YR 2021
FD 2021-04
LK http://hdl.handle.net/10272/19826
UL http://hdl.handle.net/10272/19826
LA eng
NO Tobes, I., Ramos Merchante, A., Araújo Flores, J. M. & Miranda, R. (2021). Fish Ecology of the Alto Madre de Dios River Basin (Peru): Notes on Electrofishing Surveys, Elevation, Palm Swamp and Headwater Fishes. Water, 13, 1038. DOI: https://doi.org/10.3390/w13081038
DS Repositorio Institucional de la Universidad de Huelva
RD 31 may 2026