Salmon Survival Indices — SalmonSurvCUI • MARSS

Example data set for use in MARSS vignettes for the DLM chapter in the MARSS-package User Guide. This is a 42-year time-series of the logit of juvenile salmon survival along with an index of April coastal upwelling. See the source for details.

Usage

data(SalmonSurvCUI)

Format

The data are provided as a matrix with time running down the rows. Column 1 is year, column 2 is the logit of the proportion of juveniles that survive to adulthood, column 3 is an index of the April coastal upwelling index.

Source

Scheuerell, Mark D., and John G. Williams. "Forecasting climate-induced changes in the survival of Snake River spring/summer Chinook salmon (Oncorhynchus tshawytscha)." Fisheries Oceanography 14.6 (2005): 448-457.

Examples

str(SalmonSurvCUI)
#> 'data.frame':	42 obs. of  3 variables:
#>  $ year   : int  1964 1965 1966 1967 1968 1969 1970 1971 1972 1973 ...
#>  $ logit.s: num  -3.46 -3.32 -3.58 -3.03 -3.61 -3.35 -3.93 -4.19 -4.82 -5.65 ...
#>  $ CUI.apr: int  57 5 43 11 47 -21 25 -2 -1 43 ...