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Throwing fish back dead
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Shane



Joined: 31 Oct 2005
Posts: 3031
Location: Doha. Is hot.
PostPosted: Wed Jul 04, 12 3:29 am    Post subject:  Reply with quote    

Hairyloon wrote:
Secondly, the best way to kill a fishery is to start catching immature fish.
I think the point is that the under-sized fish are being caught anyway, but under the current regulations they get thrown back dead.

Out this way, it appears that the fisherman get to land whatever is caught. I've seen sharks, manta rays and all sorts in the wholesale fish market. It's a bit shocking at first, but I guess if they've caught the fish anyway, especially one as big as a manta ray, they're probably not going to survive if thrown back into the water. Not a lot goes to waste, by the looks of it, as they're normally pretty much sold out if you leave your visit too late.

crofter



Joined: 11 Feb 2007
Posts: 2252

PostPosted: Wed Jul 04, 12 12:33 pm    Post subject: Reply with quote    

Hairyloon wrote:
Secondly, the best way to kill a fishery is to start catching immature fish.


Yes, that is correct, although this is not the issue in the north sea because of restrictions on net mesh size, the use of square mesh escape panels for juvenile fish and the introduction of real time closures when large numbers of cod are found in an area, also juvenile real time closures when juvenile cod, haddock, whiting and saithe are more than 10% of the catch (or 7.5% if the catch is more than 75% cod) The problem in a mixed fishery occurs when a boat uses all their quota for one species but still have quota for another - they cannot avoid catching valuable mature fish (eg cod) but they are not allowed to land them (no quota) so they must be dumped back into the sea dead.

crofter



Joined: 11 Feb 2007
Posts: 2252

PostPosted: Fri Jul 25, 14 3:04 pm    Post subject: Reply with quote    

sean wrote:
Brilliant. Which bit of the word 'evidence' don't you understand?

Edit: Sorry if that seems rude but it is substantively ignoring the question completely. And stuff that 'everybody knows' is usually rubbish I'm afraid.


Some scientific evidence for you here Sean...

http://www.fishnewseu.com/scottish-news/12741-skippers-prove-their-scientific-abilities.html

Quote:
FISHERMEN are just as good as scientists at predicting the level of commercial fish stocks, according to startling new research.


Quote:
The study concludes that "fishers' perceptions of changes in distribution and abundance of megrim in the northern North Sea are consistent with [scientific] survey data".

Dr Macdonald and his colleagues urge fisheries regulators to make use of the skippers' knowledge when determining quota levels for relevant species.

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