The Amazon River dolphin, Inia geoffrensis: What have we learned in the last two decades of research?

Authors

Da Silva, VMF

Additional Authors

Brum, SM; Mello, DMD; Amaral, RS; Gravena, W; Campbell, E; Gonçalves, RS, & Mintzer, VJ

Year

2023

Volume & Issue

18(1), 139-157

Pages

19

Country / Region

South America

Document Type

Peer-reviewed journal article

Species

Amazon river dolphin

Science Keywords

Habitat Use, behavior, distribution, Genetics, Reproduction, Taxonomy, Abundance, Species review, Movements

Conservation Measure

Species knowledge and understanding

Threat Keywords

All threats reviewed

Abstract

In the last decades, knowledge about the biology of the Amazon River dolphin Inia geoffrensis has increased considerably. Accordingly, we present a review of the published  literature on this river dolphin, with a focus on the topics with the most advancements and those that are important to the species’ conservation. We also present new information, including emerging knowledge on the other putative species of Inia. We summarize the current knowledge of the biology of Inia, aspects of taxonomy, distribution, life history and reproduction, genetics, anatomy and physiology, health, behavior, ecology, demographic parameters, and population trends. We also highlight the main anthropogenic threats affecting the species and the resulting conservation efforts.