Do in-stream restoration structures enhance salmonid abundance? A meta-analysis

Whiteway, Sarah L., Biron, Pascale M., Zimmermann, Andre, Venter, Oscar and Grant, James W. A. (2010) Do in-stream restoration structures enhance salmonid abundance? A meta-analysis. Canadian Journal of Fisheries and Aquatic Sciences, 67 5: 831-841. doi:10.1139/F10-021


Author Whiteway, Sarah L.
Biron, Pascale M.
Zimmermann, Andre
Venter, Oscar
Grant, James W. A.
Title Do in-stream restoration structures enhance salmonid abundance? A meta-analysis
Journal name Canadian Journal of Fisheries and Aquatic Sciences   Check publisher's open access policy
ISSN 0706-652X
1205-7533
Publication date 2010-05
Sub-type Article (original research)
DOI 10.1139/F10-021
Volume 67
Issue 5
Start page 831
End page 841
Total pages 11
Editor Donald A. Jackson
Place of publication Ottawa, Canada
Publisher NRC Research Press
Collection year 2011
Language eng
Subject C1
9605 Ecosystem Assessment and Management
050206 Environmental Monitoring
Formatted abstract
In the family Salmonidae, lake trout (Salvelinus namaycush) are considered the least tolerant of salt water. There are, however, sporadic reports of lake trout in coastal, brackish habitats in the Canadian Arctic. Otolith microchemistry analyses conducted on lake trout and Arctic char (Salvelinus alpinus) from four Arctic lakes in the West Kitikmeot region of Nunavut, Canada, revealed that 37 of 135 (27%) lake trout made annual marine migrations. Anadromous lake trout were in significantly better condition (K = 1.17) and had significantly higher C:N ratios (3.71) than resident lake trout (K = 1.05 and C:N = 3.34). Anadromous lake trout also had significantly higher δ15N (mean = 16.4‰), δ13C (mean = –22.3‰), and δ34S (mean = 13.43‰) isotope ratios than resident lake trout (means = 12.84‰, –26.21‰, and 1.93‰ for δ15N, δ13C, and δ34S, respectively); results were similar for Arctic char and agree with results from previous studies. Mean age of first migration for lake trout was 13 years, which was significantly older than that for Arctic char (5 years). This could be a reflection of size-dependent salinity tolerance in lake trout, but further research is required. These are the first detailed scientific data documenting anadromy in lake trout.
Keyword Large woody debris
Fresh water fauna
Habitat restoration
Trout populations
Juvenile salmonids
Fish populations
Atlantic salmon
Cutthroat trout
Weir placement
Brown trout
Q-Index Code C1
Q-Index Status Confirmed Code
Institutional Status UQ

Document type: Journal Article
Sub-type: Article (original research)
Collections: Official 2011 Collection
School of Biological Sciences Publications
 
Versions
Version Filter Type
Citation counts: TR Web of Science Citation Count  Cited 46 times in Thomson Reuters Web of Science Article | Citations
Scopus Citation Count Cited 53 times in Scopus Article | Citations
Google Scholar Search Google Scholar
Created: Sun, 23 May 2010, 00:05:42 EST