The variables are:
Density |
egg density |
smack.lat |
latitude of sampling position |
smack.long |
longitude of sampling position |
smack.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.