Mirex concentration, weight, capture year, and species of Lake Ontario Coho and Chinook salmon.
A data frame with 122 observations on the following 4 variables.
a numeric vector of capture years
a numeric vector of salmon weights (kg)
a numeric vector of mirex concentration in the salmon tissue (mg/kg)
a factor with levels
year variable should be converted to a factor as shown in the example.
From (actual data) Makarewicz, J.C., E.Damaske, T.W. Lewis, and M. Merner. 2003. Trend analysis reveals a recent reduction in mirex concentrations in Coho (Oncorhynchus kisutch) and Chinook (O. tshawytscha) Salmon from Lake Ontario. Environmental Science and Technology, 37:1521-1527.
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