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Evaluation of a free-fall apparatus for downstream passage of Atlantic salmon (Salmo salar L.) / R.K. Sweeney and R.J. Rutherford. : Fs97-4/1632E-PDF

"The design of economical, downstream-passage facilities for Atlantic salmon (Salmo salar) kelts and smolts at hydroelectric dams often includes a free fall to the tailrace. To determine the height of fall which could be tolerated by this species without immediate mortality, kelts and smolts were dropped from a plywood flume with a water discharge of 0.42 M3 /sec. The smolts were dropped a vertical distance of 18.0 m, while the kelts, both grilse and older salmon, were dropped from both 10.6 m and 18.0 m. Survival was dependent upon impact velocity, with fatal injuries occurring above 15.2 m/sec. The experimental results indicate that this velocity would be reached when smolts fell 21 m, grilse kelts 18 m and salmon kelts 16 m"--Abstract, page vii.

Lien permanent pour cette publication :
publications.gc.ca/pub?id=9.959457&sl=1

Renseignements sur la publication
Ministère/Organisme
  • Canada. Department of Fisheries and Oceans. Maritimes Region. Freshwater and Anadromous Division, issuing body.
TitreEvaluation of a free-fall apparatus for downstream passage of Atlantic salmon (Salmo salar L.) / R.K. Sweeney and R.J. Rutherford.
Titre de la série
  • Canadian manuscript report of fisheries and aquatic sciences, 0706-6473 ; 1632
Type de publicationMonographie - Voir l'enregistrement principal
Langue[Anglais]
FormatTexte numérique
Document électronique
Note(s)
  • Digitized edition from print [produced by Department of Fisheries and Oceans].
  • Includes bibliographical references.
  • Includes abstracts in English and French.
Information sur la publication
  • Halifax, Nova Scotia : Freshwater and Anadromous Division, Resource Branch, Department of Fisheries and Oceans, December 1981.
  • ©1981
Auteur / Contributeur
  • Sweeney, R. K., author.
Description1 online resource (vii, pages) : charts, illustrations, maps.
Numéro de catalogue
  • Fs97-4/1632E-PDF
Descripteurs
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