Pacific Mackeral Stocks that feed Farmed salmon in decline

Derby

Crew Member
Pacific Mackerel Stocks That Feed Farmed Salmon In Decline
01:01 pm

January 30, 2012


Farmed salmon, that ubiquitous pink fish decorated with ribbons of fat, can thank the forage fish of the southern Pacific ocean – like anchovy and jack mackerel – for their calorie-rich diet. Indeed, more than 5 pounds of jack mackerel typically can go towards raising one pound of farmed salmon.

But that food supply – and the ocean ecosystem that supports it — may be in peril, according to a new report by the International Consortium of Investigative Journalists. According to scientists the ICIJ spoke to, "supertrawler" fishing vessels from Asia, Europe and Latin America have contributed to a 63 percent decline in jack mackerel stocks since 2006. At the current rate of overfishing, the world's stock of jack mackerel, which is largely located off the coast of Chile, could collapse soon.

"This is the last of the buffaloes," Daniel Pauly, an oceanographer at the University of British Columbia, told ICIJ. "When they're gone, everything will be gone ... This is the closing of the frontier."


Concerns about the environmental impacts of feeding and raising farmed salmon are one reason Target has eliminated the product from its stores. Instead, the big-box chain sells wild-caught salmon in all its stores nationwide.

ICIJ says that the Southern Pacific Regional Fisheries Management Organization, the organization responsible for managing jack mackerel stocks, has been unable to stop overfishing. Only six countries have ratified an agreement it formulated to protect the fish. The group is holding its annual meeting in Santiago, Chile, this week.

Two Chilean fishing companies are some of the most powerful players in the jack mackerel trade — they control 29.3 percent of the jack mackerel quota set by the Chilean government, ICIF says. And they supply 5.5 percent of the world's fishmeal.

As NPR's Kristofor Husted has reported, some scientists are exploring ways to make new fish feed using renewable sources, such as biofuel co-products, poultry by-products, soybeans and so on.

The investigation is the third in ICFJ's series "Looting the Seas," which has also looked at the black market in bluefin tuna, and how fishing subsidies in Spain have built up a bloated fleet that is partly responsible for the depletion of Europe's fish stocks.

Tags: salmon, Fish

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Yep, lost in all the hue and cry over the impact salmon feed lots have on our local ocean and wild fisheries due to lice and ISA, is the effect on the environment and its food chains.
Fish farms are nothing more than gigantic energy consuming, inefficient and environmentally dangerous conveyor belts for moving fish protein from the southern oceans and elsewhere to North America and Europe. Maybe fish feed lots will eventually "strip mine" the oceans of all feed fish and go into decline that way, but by then of course, it will be too late.
 
You are right on Englishman. Most modern industrial production feedlots be they for cows, or fish consume more food resources then they provide as a final product as they all try to artificially speed up the growth of animals to make a bigger buck. In the long run it is not sustainable and will cause environmental collapse wherever it is practiced.

In regards to salmon farms, first we need to get them out of the water and on to the land to stop the spread of pollution and disease. Second, we need to find plant based food for the farmed fish and stop mining the seas for plankton, krill and bait fish to feed them. Third, the producers need to learn to expect a longer time to market and lastly, customer need to be willing to pay more for farmed fish. The current situation is completely unsustainable and will leave our oceans mined of the essential parts of the food chain and empty of wild fish just to feed farmed fish to get to market faster.
 
I just finished reading the book "The End of the Line" which is a few years old (maybe 5 or so) but a good global perspective on how much trouble we are with our fisheries. Recommend it for anyone on this forum. Most of us are primarily concerned with our local waters/fish but when it comes to the ocean everything is very much interconnected so it's nice to take a step back every once in a while. If anyone has any other book recommendations on this subject please share. cheers
 
The only book in this arena I have read is "Dead Reckoning - Confronting the Crisis in Pacific Fisheries" by Terry Glavin. This book highlights the big mistake perpetuated all around the world - commercial fishing "down the food chain" so that smaller feed fish lower down the food chain are targeted, leading to collapse of entire ecosystems. Here in the West Coast this means going after herring. The ultimate insanity is going after Arctic Krill, the basis of the the whole feed chain and entire ecosystem of the Northern Pacific.......
 
You missed the fact that there is a BC krill fishery too..................
 
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