Event Title

Session D4: Merits and Challenges of Fish Lifts

Presenter Information

Keith Martin, Kleinschmidt

Location

Groningen, The Netherlands

Event Website

http://fishpassage.umass.edu/

Start Date

23-6-2015 10:50 AM

End Date

23-6-2015 11:05 AM

Description

Abstract:

Of the various types of technical fishways, fish lifts are one of the most operationally flexible yet most complicated upstream passage methods. Fish lifts are being installed with greater frequency and have enjoyed successes in passing many different species in the same facility. Fish lifts have been particularly successful in passing alosine species, and are a typical upstream passage solution for medium to high head dams.This presentation will discuss some of the advantages and challenges of constructing fish lifts and will highlight examples of fish lifts in operation. Well designed fish lifts have the ability to distribute attraction flows in multiple locations to achieve different velocities in different zones of the fishway such as the entrance, crowder pool, holding pool, or transport flumes. This operational flexibility allows different flow fields to be established for optimal attraction and movement of different target species during different times of the upstream passage season. This flexibility requires complex hydraulic adjustments and automation of mechanical systems. The inherent mechanical complexity of fish lifts means that it is important to engage a competent engineering consultant whose team understands the nuances of fish behavior as well as the technical challenges of such an important facility. This presentation will highlight some of the important design considerations for developing or evaluating a successful fish lift project.

Comments

Presenting Author Bio: Keith Martin is a Senior Engineer in the Fish Passage Team at Kleinschmidt. For the past decade, he has specialized in the evaluation and design of fish passage facilities and other hydropower infrastructure. His most recent work has been leading an engineering team tasked with improving upstream and downstream passage at five powerhouses as part of the Penobscot River Restoration Project. He is currently engaged in multiple fish passage design projects in the Northeast United States and Maritime Canada.

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Jun 23rd, 10:50 AM Jun 23rd, 11:05 AM

Session D4: Merits and Challenges of Fish Lifts

Groningen, The Netherlands

Abstract:

Of the various types of technical fishways, fish lifts are one of the most operationally flexible yet most complicated upstream passage methods. Fish lifts are being installed with greater frequency and have enjoyed successes in passing many different species in the same facility. Fish lifts have been particularly successful in passing alosine species, and are a typical upstream passage solution for medium to high head dams.This presentation will discuss some of the advantages and challenges of constructing fish lifts and will highlight examples of fish lifts in operation. Well designed fish lifts have the ability to distribute attraction flows in multiple locations to achieve different velocities in different zones of the fishway such as the entrance, crowder pool, holding pool, or transport flumes. This operational flexibility allows different flow fields to be established for optimal attraction and movement of different target species during different times of the upstream passage season. This flexibility requires complex hydraulic adjustments and automation of mechanical systems. The inherent mechanical complexity of fish lifts means that it is important to engage a competent engineering consultant whose team understands the nuances of fish behavior as well as the technical challenges of such an important facility. This presentation will highlight some of the important design considerations for developing or evaluating a successful fish lift project.

https://scholarworks.umass.edu/fishpassage_conference/2015/June23/85