REPORT OF THE WORKSHOP ON TRAWL SURVEY ... - FAO.org

&W : Northern Ireland March Groundfish Survey- Irish Sea East & West - Nos. per 3 nm: Comparative sc
1
-1.5
-2.5
Log index at age 2
.5
0
-.5
-1
Log index at age 3
-.5
-1
-1.5
-2
-2.5
Log index at age 4
-2
-2.5
-3
-3.5
-4
-4.5
-5
Log index at age 5
-3
-3.5
-4
-4.5
-5
-5.5
-6
-1.5
.4 .6 .8 1 1.2 1.4 1.6
Log index at age 1
.4 .6 .8 1 1.2 1.4 1.6
Log index at age 1
.4 .6 .8 1 1.2 1.4 1.6
Log index at age 1
.4 .6 .8 1 1.2 1.4 1.6
Log index at age 1
-1.5
-2.5
Log index at age 3
-.5
-1
-1.5
-2
-2.5
Log index at age 4
-2
-2.5
-3
-3.5
-4
-4.5
-5
Log index at age 5
-3
-3.5
-4
-4.5
-5
-5.5
-6
-1.5 -1 -.5 0 .5 1
Log index at age 2
-1.5 -1 -.5 0 .5 1
Log index at age 2
-1.5 -1 -.5 0 .5 1
Log index at age 2
-1.5
-2.5
Log index at age 4
-2
-2.5
-3
-3.5
-4
-4.5
Log index at age 5
-3
-3.5
-4
-4.5
-5
-5.5
-5
-6
-2.5 -2 -1.5 -1 -.5
Log index at age 3
-2.5 -2 -1.5 -1 -.5
Log index at age 3
-2.5
Log index at age 5
-3
-3.5
-4
-4.5
-5
-5.5
-6
-5 -4.5 -4 -3.5 -3 -2.5 -2 -1.5
Log index at age 4
Fig. 9. Within-survey correlations for Irish Sea whiting in the: NI-GFS (March) Q1
groundfish survey. Regression lines and confidence intervals for the regression are
shown.
Fig. 10.
North Sea haddock: Log mean-standardised abundance indices by cohort for
each of the three surveys used in the assessment.
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