Dublin Core
Title
Ecology and Conservation of Freshwater Fishes Biodiversity
Subject
Tropical Andes; Manu Biosphere Reserve; Astroblepus; Trichomycterus; Mauritia flexuosa
Description
Our study analyzes the distribution of fish communities related to the environmental
variables of the Alto Madre de Dios River, an Andean-Amazon watershed of southern Peru, between
300 and 2811 m a.s.l. within the Manu Biosphere Reserve. We provide new ecological and diversity
data on fishes for these poorly studied rivers and new data for palm swamp habitats. With electric
fishing techniques, we collected a total of 1934 fish specimens belonging to 78 species, 42 genera
and 15 families. To assess main patterns of diversity we combined SIMPER and ANOSIM with
canonical correspondence analysis to obtain an overview of the community structure of fish and
their distribution related to aquatic habitats. Our results show an important shift on fish diversity at
700 m a.s.l. separating headwater and middle-lowland communities. Electrofishing was a hindrance
due to the depth, flow and low conductivity of the rivers, but also allowed us to capture fish not
observed with other techniques. We also compared the use of elevation with slope as an alternative
variable for statistical analysis. Our results show that slope offers a solid and equivalent explanation
for fish distribution variability, avoids redundance, and instead of giving geographical data offers
ecologically solid information.
variables of the Alto Madre de Dios River, an Andean-Amazon watershed of southern Peru, between
300 and 2811 m a.s.l. within the Manu Biosphere Reserve. We provide new ecological and diversity
data on fishes for these poorly studied rivers and new data for palm swamp habitats. With electric
fishing techniques, we collected a total of 1934 fish specimens belonging to 78 species, 42 genera
and 15 families. To assess main patterns of diversity we combined SIMPER and ANOSIM with
canonical correspondence analysis to obtain an overview of the community structure of fish and
their distribution related to aquatic habitats. Our results show an important shift on fish diversity at
700 m a.s.l. separating headwater and middle-lowland communities. Electrofishing was a hindrance
due to the depth, flow and low conductivity of the rivers, but also allowed us to capture fish not
observed with other techniques. We also compared the use of elevation with slope as an alternative
variable for statistical analysis. Our results show that slope offers a solid and equivalent explanation
for fish distribution variability, avoids redundance, and instead of giving geographical data offers
ecologically solid information.
Creator
Editor
Rafael Miranda
Rafael Miranda
Source
https://www.mdpi.com/books/book/6259-ecology-and-conservation-of-freshwater-fishes-biodiversity
Publisher
MDPI
Date
2022
Contributor
Jadik Wijayanto
Rights
The book as a whole is distributed by MDPI under the terms and conditions of the Creative Commons
license CC BY-NC-ND.
license CC BY-NC-ND.
Relation
https://www.mdpi.com
Format
PDF
Language
English
Type
Textbook
Identifier
ISBN 978-3-0365-5420-4 (Hbk)
ISBN 978-3-0365-5419-8 (PDF)
ISBN 978-3-0365-5419-8 (PDF)
Coverage
St. Alban-Anlage 66
4052 Basel, Switzerland
4052 Basel, Switzerland