Comment posted FoI by Salmon and Trout Association shows reality of failure on sea lice control in salmon farms by Erik the Viking.
“only if:
•those existing fish-farms in sensitive locations are relocated away from the wild salmonid rivers
•and, ultimately, the industry moves into closed containment systems.”
Where exactly would the STA have them relocate? Lets have some real geographical examples please?
Can someone explain a closed containment system to me? All seems a bit too simple?
Erik the Viking also commented
- Like I say it all seems all a little too simple.
Be nice to have an ‘independent’ viewpoint without hearing from the same old antis
Recent comments by Erik the Viking
- Negotiations on Seafari Adventures’ proposed fuel facility at Ellenabeich
“5000 litres of petrol is a lot of money”…….and a lot of trailer too
- Mull’s Inverlussa Marine Services wins one year work boat contract from Scottish Salmon Company
Can’t see a closed containment system employing many work boats?So what are we saying here – Congratulations Douglas Wilson on securing the contract but we’d rather you didn’t get the work because salmon farms are bad? Or do we have to see what Rob Edwards thinks first?
- Body of missing Loch Awe angler found
“bonnie place but so dangerous”Tragic – and my sympathies are with the family – but the loch is NOT the danger.
When are we going to stop pussy footing around and admit that alcohol just might play a part in these tragic incidents?
- Scottish Salmon Producers fight back
“Scottish fish farmers use record amounts of parasite pesticides”A record in what respect? The biggest user of cypermethrin (the main sealice treatment) in Argyll isn’t aquaculture
- SaveSeilSound: purpose, issues, actions and institutional failures of responsibility
“while still others, such as zinc and other heavy metals simply remain here for the rest of time.”Am I missing something here……the heavy metals are coming from where exactly?
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Agency Board Meeting
15 February 2011
Board Report Number:
SEPA 05/11
“Alleged illegal use of chemicals to treat sea lice on a Shetland salmon farm
(update)
SEPA is working closely with Marine Scotland to identify who is best placed to lead
on enforcement action, given the alleged activity potentially interfaces both regulatory
agencies’ remits. This co-operation will progress the good working relationship
already developed between Marine Scotland and SEPA.”
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“only if:
•those existing fish-farms in sensitive locations are relocated away from the wild salmonid rivers
•and, ultimately, the industry moves into closed containment systems.”
Where exactly would the STA have them relocate? Lets have some real geographical examples please?
Can someone explain a closed containment system to me? All seems a bit too simple?
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“Can someone explain a closed containment system to me? All seems a bit too simple?”
I read some were that this system is used in Canada, I think its like having big swiming pools all closed in, they can be located on land. I will try and find that link. This guy blogs a lot on those issues
http://www.robedwards.com/fish_farming/
http://www.robedwards.com/2006/12/wild_salmon_at_.html
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Like I say it all seems all a little too simple.
Be nice to have an ‘independent’ viewpoint without hearing from the same old antis
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As far as we understand it, relocation should be a rolling feature of fish farming – regularly moving the cages to different locations to prevent the build up of the sort of faecal and chemical wastes under discussion.
Again, as far as we understand it, there are – or were – requirements placed upon fish farms in planning permissions, for specific periodic relocations. These requirements were simply ignored – to which neglect the Scottish Environmental Protection Agency (SEPA) turned a blind eye.
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In theory there is nothing technical to prevent the use of close circuit systems or pump through systems for growing salmon. Pump ashore systems are nothing new and I once visited Harbor Branch in the US which had its whole, large aquaculture site working on a water system where the discharges from the site were actually higher in quality than the water extracted from the river it was sat on.
It would be a relatively simple matter from a technical viewpoint to have an enclosed cage (effectively a large tank) floating in the sea with water being pumped into the tank. As the water is pumped in, it is filtered to remove pathogens and parasites (technically you could have filters so fine they will remove bacteria but more likely a UV system would be used to sterilise the water Salmon and bacterial action on any uneaten food mean that oxygen demand will be high in the tank so either the water needs to be pumped through very rapidly or the water needs to be additionally oxygenated water out must equal water in so the water has to be drained out through a sewage system that can remove solids (at least) from the waste water.
You can have various refinements of this sort of system so you could, say, remove nitrates from the waste water.
The problem is, of course, cost. Pumping water is expensive, oxygenating water (in enclosed systems with high fish densities) is expensive, filtration of water to remove waste products is expensive At a guess, the cost of using systems that would entail minimal impact on the environment would be at least 5x the cost of using open cage systems, even allowing for the improvements in fish health that should arise.
You can see why the industry might not be too keen to embark on a switch to pump through systems. While the industry is not held financially responsible for the economic costs of the difficult to quantify impacts then don’t expect much in the way of innovation in regard to pump through or recirc systems.
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Agency Board Meeting
29 May 2012
Board Report Number:
SEPA 19/12
Chairman report
“SEPA 19/12
2.5
Dawnfresh Seafoods trout farms, Loch Awe and Loch Etive
Jim Frame, West Highlands & Argyll Operations unit manager, and I visited the
Dawnfresh Seafoods trout farms at Loch Awe and Loch Etive on 2 May. Alastair
Salvesen, chairman and major owner of the company, hosted this visit.
I found this visit both interesting and useful as Jim Frame flagged these sites as being
much improved and now demonstrating good practice in this sector. Alastair
Salvesen explained the benefits of recent investments in production facilities and
outlined his future vision. SEPA’s Lochgilphead team will continue to work with
Dawnfresh Seafoods to support good environmental performance.
.”
Do not think SEPA’s chair person has a problem with methods used in fish farming.
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