Timmy H
Well-known member
- Joined
- Nov 20, 2020
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- Glastonbury
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- Shore
They couldn't survive unless those waters had warmed enough to support them. It's not just our part of the world that is suffering declining fish stocks and infiltration by new species whatever the cause.Lion fish have been spread around the Red Sea and Atlantic Ocean and the Mediterranean by mankind in bilge water, thrown out or lost by careless aquarium owners. Few natural predators are known and they’re a bloody nightmare. Nothing to do with warming up of the oceans, but it doesn’t help in the fight against them.
There are multiple causes of the changes we are seeing, over fishing, warming, habitat destruction, invasive species, we can't pin all the blame on just one sector but we can go some way to explain why some species change their range and behaviour. In the case of mackerel, approx 15 years ago they were a new species to Iceland and the Faroes, now they are a major catch. What made them turn up there?
It certainly wasn't to escape commercial fishing around the UK.
Anyway, it's a good subject to debate but personally I'd like to go back 40 years to when decent cod and big whiting were common, rays were a surprise and I could catch pounds of brown shrimp in an hour with a pushnet.