GobySurvival {emdbook}

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).

Source

J. Wilson, pers. comm.; "Habitat quality, competition and recruitment processes in two marine gobies", Ph.D. thesis, University of Florida (2004); https://ufdc.ufl.edu/UFE0004180/00001/pdf

Examples

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