emdbook (version 1.3.13)

GobySurvival: Goby (reef fish) survivorship data

Description

Survivorship data from experimental manipulations on gobies Elacatinus evelynae and E. prochilos in the US Virgin Islands, 2000-2002

Format

exper

experiment

year

year

site

site (factor: backreef, patchreef)

head

coral head (factor)

density

treatment "density" (number of "target" fish)

qual

treatment "quality"; background settlement rate

d1

last day observed (starting at 1)

d2

first day not observed

Details

These data have been made available by the author for pedagogical use; out of courtesy, please don't redistribute (outside of the context of this package) or use in an academic publication without requesting permission (via the package maintainer).

Examples

## midpoint of survival times
gg <- transform(GobySurvival,mid=(d1+d2)/2)
plot(table(gg$mid))