Re: Atlantic salmon escape their farmOct 26th, 2009
I suspect we are.
I happen to oppose the way we treating our oceans.
I can live with some West coast fish farms but I tend to agree with annaG and think they should either be in a contained loop or further offshore.
The Norwegians have done a pretty fair job of offshoring their fish
farming industries to places like South America and Canada.
They have also done a pretty good job of protecting their local wild salmon runs.
It falls to us to do the same.
[QUOTE=Tonington;1165958]Every year the diet formulations are getting better. I attended a seminar with a nutritionist working in Norway last year, and the company he works for has a goal of zero marine protein and fatty acid. They've already completed phase one, and are partway through phase two. Phase three will bring it to zero.
This is partly out of necessity, and partly due to marketing. The aim for their company is a salmon that still has a good mix of EHA and DPA fatty acids, with less of the bioaccumulated toxins. A double whammy for health benefits.
Well, good, the sooner we can switch to a vegetable based feed the more sustainable it becomes.
The bait fish landed hasn't increased at all over the years that aquaculture has grown. They were being strip mined before, for human nutritional supplements, for pharmaceuticals, for animal feeds, for fishing bait...it's insane.
And unsustainable in my opinion.
I care not if landings have increased or not.
It's unsustainable and constantly moving the fishing fleets from various country's to other country's waters is unacceptable.
We cannot remove the biomass from the oceans at todays rates.
And for wild salmon, it is about 15 kg needed to produce 1 kg of Oncorhynchus salmonids. Alot is made of that number, but as I've said, every year it gets smaller and smaller. It has to out of necessity. The capture fishery for fish meal is stagnant, and the demand grows every year.
Who cares; they are wild fish.
They do what they are supposed to do.
It's all as it should be.
I don't care if wild fish eat at a 100 to one ratio.
It's the artificial stuff that I look at.
As I said, that is becoming less of an issue all the time. The pcb's in a serving of farmed salmon are lower than in a glass of milk, for some context, and lower than those in Chinook salmon
And that makes it all the worse.
Why are wild Chinook's high in PCB's?
Should we fix that?
To be realistic, salmon isn't in the same category as herring or anchovies.
But it should be.
I have eaten fresh grilled herring in Spain, Portugal and Italy.
Yeah, that's what the 68 day withdrawal period is for. This will also be a problem of the past shortly. Turns out that sea lice resistant is a highly heritable trait (anything with a heirtability score above 0.3 is highly heritable). Breeding programs are now utilizing this.
Well, that's good and all.
But they still use Slice.
And when I said Slice was nasty I wasn't necessarily talking in relation to people.
What happens when all those water soluble antibiotics rip through those fish and hit the bays and coves that BC fish farming takes place in?
The topic of my fourth year project last year! It reduces the severity and duration of the stress response in rainbow trout. Astaxanthin is a naturally occurring pigment.
Those fish have grey mud coloured flesh artificially dyed for the consumer.
Perhaps when the changes you have discussed all take place.
And perhaps when they move those things offshore or into a closed loop system I will buy their product.
But right now, no thanks.