Event Title

Session B8: The Acoustic World of Fish: Sound Ways to Investigate Migratory Bottlenecks

Location

Groningen, The Netherlands

Event Website

http://fishpassage.umass.edu/

Start Date

24-6-2015 2:15 PM

End Date

24-6-2015 2:30 PM

Description

Abstract:

Many fish species migrate through freshwater river systems related to seasonal or life cycle changes in habitat requirements. Human activities have negatively affected migratory fish populations in many ways. Especially dams and dikes built for the protection of human populations against flooding often prevent exchange between water bodies. In many places at weirs, locks, or hydropower stations water flow is not only fully or partially blocked, but artificial water flow through pumping systems often yields an alternative passage way with high risk of mortality. Only recently, people are becoming fully aware of the importance of sound to fish survival, reproduction, and well-being. Given the fact that many waters have low visibility, hearing is often the dominant channel available to fish for gathering information about their underwater surroundings. Although cues related to water flow, salinity, or temperature may all be important, underwater sounds can also play a critical role in dispersal decisions of migrating fish. Soundscape orientation, acoustic communication, but also noise pollution can influence navigation abilities and synchronization of migration. Current insights about attraction and deterrence in the field of soundscape orientation and acoustic communication in fish are reviewed in the context of migratory bottlenecks.

Comments

Presenting Author Bio: Specialized in field studies related to the acoustic ecology of birds and fish with outdoor and indoor studies on fundamental and applied aspects. Published over 65 papers in peer-reviewed journals; current hindex 25. Extensive teaching experience at BSc, MSc and PhD-level in: Animal Communication, Signal Evolution, Behavioural Disturbance and Experimental Design.

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Jun 24th, 2:15 PM Jun 24th, 2:30 PM

Session B8: The Acoustic World of Fish: Sound Ways to Investigate Migratory Bottlenecks

Groningen, The Netherlands

Abstract:

Many fish species migrate through freshwater river systems related to seasonal or life cycle changes in habitat requirements. Human activities have negatively affected migratory fish populations in many ways. Especially dams and dikes built for the protection of human populations against flooding often prevent exchange between water bodies. In many places at weirs, locks, or hydropower stations water flow is not only fully or partially blocked, but artificial water flow through pumping systems often yields an alternative passage way with high risk of mortality. Only recently, people are becoming fully aware of the importance of sound to fish survival, reproduction, and well-being. Given the fact that many waters have low visibility, hearing is often the dominant channel available to fish for gathering information about their underwater surroundings. Although cues related to water flow, salinity, or temperature may all be important, underwater sounds can also play a critical role in dispersal decisions of migrating fish. Soundscape orientation, acoustic communication, but also noise pollution can influence navigation abilities and synchronization of migration. Current insights about attraction and deterrence in the field of soundscape orientation and acoustic communication in fish are reviewed in the context of migratory bottlenecks.

https://scholarworks.umass.edu/fishpassage_conference/2015/June24/56