Here's the AQA accepted answers to the question in the previous post, ie the notes that the person marking the paper would see. (Reproduced without permission)
Scientists figures based on research /calculations / data
or scientists sample whole area.
Fishermen based on impression / hearsay /experience
or fishermen fish in well-stocked / limited areas
ignore reasons based on bias
Scientists sample a wider area= 2 marks
Fishermen only fish in well-stocked areas = 2 marks
If no marks gained fishermens’ opinion and scientists’ opinion gains 1 mark
Now the point that I have spent two posts getting to is:
Do you want your kids doing questions like this or would you rather they learnt about how the fish maintains its buoyancy whilst swimming along, how it absorbs oxygen and whether it ever needs to drink?