The file scallop_abundance_and_fishing_mortality_at_age_by_area.csv contains the estimates of stock abundance and fishing mortality at age from the SAM stock assessments. It includes data from Tables A.13, A.14, A.21, A.22, A.30, A.31, A.39, A.40, A.47 and A.48 in the report.

The variables in the file are:

Area
Description: Scottish scallop stock assessment area name
Type: categorical
Levels: 5 (East Coast, North East, North West, Shetland, West of Kintyre)
Note: Data are only available for those assessment areas which have an analytical assessment.

Year
Description: calendar year of data
Type: discrete
Range: 1982, 2022
Note: Range of data differs between stock assessment areas

Age
Description: king scallop age class.
Type: discrete/categorical
Range: 3, 10+
Note: The maximum age class is labelled '10+' and includes all scallops at age 10 and older.

Abundance
Description: stock assessment estimates of the abundance of king scallops (number of individuals in thousands).
Type: continuous
Range: 367, 45168
Note: Values presented are rounded to nearest integer.

Fishing mortality
Description: stock assessment estimates of the annual fishing mortality.
Type: continuous
Range: 0.0004, 0.7011
Note: Values presented are rounded to 4 decimal places.