sm (version 2.2-5.4)

mackerel: The abundance of mackerel eggs

Description

These data record the abundance of mackerel eggs off the coast of north-western Europe, from a multi-country survey in 1992.

The variables are:

Density
egg density
mack.lat
latitude of sampling position
mack.long
longitude of sampling position
mack.depth
bottom depth
Temperature
surface temperature

Background to the survey and the data are provided by Watson et al. (1992), Priede and Watson (1993) and Priede et al (1995). Borchers et al (1997) describe an analysis of the data.

Arguments