Brook trout movement, survival and spawning redd sites in a central Wisconsin headwater stream vulnerable to low streamflow

2021 ◽  
Author(s):  
Benjamin T. Schleppenbach ◽  
Zachary P. Mohr ◽  
Joshua K. Raabe
Keyword(s):  
2011 ◽  
Vol 26 (1) ◽  
pp. 143-152 ◽  
Author(s):  
James H. Johnson ◽  
Robert M. Ross ◽  
David S. Dropkin ◽  
Lori A. Redell

2014 ◽  
Vol 71 (7) ◽  
pp. 1010-1019 ◽  
Author(s):  
Yoichiro Kanno ◽  
Benjamin H. Letcher ◽  
Jason C. Vokoun ◽  
Elise F. Zipkin

Headwater stream networks are considered heterogeneous riverscapes, but it is challenging to characterize spatial variability in demographic rates. We estimated site-scale (50 m) survival of adult (>age 1+) brook trout (Salvelinus fontinalis) within two intensively surveyed headwater stream networks by applying an open-population N-mixture approach to count data collected over two consecutive summers. The estimated annual apparent survival rate was 0.37 (95% CI: 0.28–0.46) in one network and 0.31 (95% CI: 0.15–0.45) in the other network. In both networks, trout survival was higher in stream sites characterized by more abundant pool habitats. Trout survival was negatively associated with mean depth in one network and positively associated with stream gradient in the other. Stream temperature was not related to trout survival in either network, possibly because the majority of sites were thermally suitable. A similar analytical approach can be useful for inferring survival rates when count data are available over space and time but individual tagging is not feasible.


2015 ◽  
Vol 144 (2) ◽  
pp. 373-382 ◽  
Author(s):  
Yoichiro Kanno ◽  
Benjamin H. Letcher ◽  
Ana L. Rosner ◽  
Kyle P. O’Neil ◽  
Keith H. Nislow

Author(s):  
Karli M. Rogers ◽  
Shawn M. Rummel ◽  
Kathleen M. Lavelle ◽  
Joseph E. Duchamp ◽  
Jonathan M. Niles ◽  
...  

1997 ◽  
Vol 18 (1) ◽  
pp. 15-25 ◽  
Author(s):  
William J. Resetarits

AbstractI examined the species composition, relative abundances, and size distributions of an ensemble of streamside salamanders in two contiguous sections of an Appalachian headwater stream: one containing brook trout and one that was trout free. The two stream sections were separated by a natural waterfall that formed a permanent barrier to the upstream movement of fish. The two stream sections differed in the overall abundance of salamanders, the relative abundance of the six species present, and the size-distribution of the salamander ensemble. These results suggest that brook trout have an effect on the structure of co-occurring ensembles of salamanders, and that the continued coexistence of stream salamanders with brook trout does not indicate lack of strong ecological interactions.


2013 ◽  
Vol 20 (3) ◽  
pp. 540-551 ◽  
Author(s):  
Jonathan M. Niles ◽  
Kyle J. Hartman ◽  
Patrick Keyser

2003 ◽  
Vol 54 (3-4) ◽  
pp. 249-260 ◽  
Author(s):  
Vladislav Gulis ◽  
Keller Suberkropp

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