2023 Early Hearing Detection & Intervention Conference
March 5-7, 2023 • Cincinnati, OH
5/21/2019 | 12:00 PM - 12:15 PM | IS FRESHWATER MIGRATION A MECHANISM TO AVOID ENERGETIC LIMITATION IN AMAZONIAN FISHES? | 251 DE
IS FRESHWATER MIGRATION A MECHANISM TO AVOID ENERGETIC LIMITATION IN AMAZONIAN FISHES?
Fish migration is thought to play a key role in the functioning of freshwater ecosystems. Migration comprises a complex spatiotemporal variation in the fish abundance and distribution across seasons or life stages. Allowing fishes to access different conditions in potentially distant areas during their life cycle for reproduction, feeding, or finding refuge. Nevertheless, compared with other forms of fish migration, potamodromy, which occur entirely within freshwaters, has received less attention in the literature. In tropical freshwater ecosystems like the Amazon Basin, potamodromy is relatively common and usually involves large-bodied and fisheries-important species. Most existing research on potamodromy has focused on environmental cues that trigger migration, such as hydrological or thermal regimes. But the possible influence of energetic regimes and resource availability on the migratory behavior of tropical fishes has received limited attention. We conducted a literature review to examine the state of the knowledge of migratory behaviors of Amazonian freshwater fishes, understanding their ecological motivations whether these are linked to thermal, hydrologic, or energetic regimes. As a result, we compiled a species checklist summarizing their migratory behaviors and a spatial database of geographical records of fish migration across the Amazon.
- Movement
- Floodplain
- Tropics
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Presenters/Authors
Guido A Herrera-R
(), University of Tennessee, guidohero@hotmail.com;
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Aldo Farah
(), Florida International University, farahaldo@gmail.com;
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Sandra Correa
(), Missisipi State University, sbc257@msstate.edu;
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Elizabeth P Anderson
(), Florida International University, epanders@fiu.edu;
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