Catch-at-age in fyke nets from 1996-1998 for “Coaster” Brook Trout (Salvelinus fontinalis) in Tobin Harbor, Isle Royale, Lake Superior.
A data frame with 7 observations on the following 2 variables.
A numeric vector of assigned ages
A numeric vector of number of Brook Trout caught
Quinlan, H.R. 1999. Biological Characteristics of Coaster Brook Trout at Isle Royale National Park, Michigan, 1996-98. U.S. Fish and Wildlife Service Ashland Fishery Resources Office report. November 1999. [Was (is?) from http://www.fws.gov/midwest/ashland/brook/biochar/biolchar.html.]
Mortality
Catch Curve
Chapman-Robson
Used in catchCurve
and chapmanRobson
examples.
str(BrookTroutTH)#> 'data.frame': 7 obs. of 2 variables: #> $ age : int 0 1 2 3 4 5 6 #> $ catch: int 39 93 112 45 58 12 8head(BrookTroutTH)#> age catch #> 1 0 39 #> 2 1 93 #> 3 2 112 #> 4 3 45 #> 5 4 58 #> 6 5 12plot(log(catch)~age,data=BrookTroutTH)