Number of Albatrosses accidentaly caught during a fishing haul
This data set from Hillborn and Mangel contains data on the number of Albatrosses accidentally caught while fishing by commercial fisheries.
data(bycatch)
A data frame with 18 observations on the following 2 variables.
The number of albatross caught
Number of hauls with this many albatross caught
During fishing operations non-target species are often captured. These are called “incidental catch”. In some cases, large-scale observer programs are used to monitor this incidental catch.
When fishing for squid, albatrosses are caught while feeding on the squid at the time of fising. This feeding is encouraged while the net is being hauled in, as the squid are clustered making it an opportunistic time for the albatross to eat.
This is from Hilborn and Mangel, The Ecological Detective, Princeton University Press, 1997. Original source of data is Bartle.
data(bycatch) hauls = with(bycatch,rep(no.albatross,no.hauls))
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