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Change in mean length at maturity of Baltic cod induced by using only gillnet, only trawl or a combination of these gears
| Change in mean length (cm)* | ||||
|---|---|---|---|---|
| Catch (kg) | Harvest rate (%) | Gillnet | Trawl | Gillnet and trawl† |
| 50 000 t | 5.6 | 0.9 | −0.3 | 0.3 |
| 100 000 t | 11.1 | 2.0 | −0.6 | 0.6 |
| 150 000 t | 16.7 | 3.5 | −0.9 | 1.1 |
Difference in the mean length of mature individuals before and after fishing.
Both gears caught half of the total catch.
