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Genetics and telemetry indicate unexpected movements among structured populations for Brachyplatystoma platynemum in the Amazon
Author(s) -
Hahn Lisiane,
Silva Priscilla C.,
Malabarba Maria C.,
Malabarba Luiz R.,
Câmara Luís F. Da,
Nunes Leonardo D.,
Machado Leonardo S.,
Martins Eduardo G.,
Barthem Ronaldo B.
Publication year - 2019
Publication title -
journal of fish biology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.672
H-Index - 115
eISSN - 1095-8649
pISSN - 0022-1112
DOI - 10.1111/jfb.13978
Subject(s) - amazon rainforest , amazon basin , biology , telemetry , population , fish <actinopterygii> , drainage basin , fishery , ecology , geography , cartography , demography , sociology , engineering , aerospace engineering
The genetic analysis of Brachyplatystoma platynemum individuals sampled from the lower Madeira River reinforces the existence of two structured populations in the Amazon Basin (Madeira and Amazon populations). However, the recapture of an individual from the Amazon population in the Solimões River, which was telemetry‐tagged in the Madeira River after the damming, indicates that fish from the Amazon population move between the two river systems. This has not yet been observed, however, in the Madeira River population, which is currently divided and isolated in the lower and upper Madeira River by the construction of two dams.