September 7, 2024Ecological EngineeringOpen Access

Inter-annual variation in movements and passage of seaward migrating European eels at a shrouded Archimedean screw pumping station

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Authors

OEOliver EvansUniversity of Hull LCLiam J. CarterUniversity of Hull THThomas H. HutchinsonUniversity of Hull

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Implication

Acoustic telemetry tracking demonstrates variable downstream passage in European eels, highlighting the need to align Archimedean screw pump operations with nocturnal migration.

Key Points

Downstream fish passage of migrating European eels was severely delayed during dry periods, whereas high hydrologic discharge permitted prompt passage.
Overall fish passage rates reached 95.0% during wet migration seasons compared to 36.8% in dry years, when operational opportunities were sparse.
Acoustic telemetry tracking of 59 silver eels upstream of an Archimedean screw pump highlights the urgent need to synchronize pumping station operation with nocturnal migration.

Cite This Study

Evans et al. (2024) studied this question.

synapsesocial.com/papers/68e591f9b6db64358752d0f9 https://doi.org/10.1016/j.ecoleng.2024.107389

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Implication

Acoustic telemetry tracking demonstrates variable downstream passage in European eels, highlighting the need to align Archimedean screw pump operations with nocturnal migration.

Inter-annual variation in movements and passage of seaward migrating European eels at a shrouded Archimedean screw pumping station

Discussion

Member takes

Implication

Key Points

Cite This Study

Inter-annual variation in movements and passage of seaward migrating European eels at a shrouded Archimedean screw pumping station

Discussion

Member takes

Implication

Key Points

Cite This Study

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