Salmon have DISAPPEARED in Scotland

Another tipping point breached: Salmon have disappeared in Scotland: Not a single salmon caught during the entire season.

Photo salmon-fishing-scotland.blogspot.com
the Big Wobble,

26 November, 2018

It used to be the best salmon fishing in the world

But now Global warming is being blamed for Scotland's worst salmon season in living memory.

Some beats on famous rivers like the Spey and the Nith recorded not a single salmon caught during the entire season.

Just two salmon were caught on the River Fyne in Argyll this year, where once more than 700 were caught each season.

The number of fish caught by anglers has been so low that some estates have stopped selling permits for once-popular beats because there is no fish to catch.
Tourism has been hit, sales of salmon tackle have slumped and ghillies have lost their jobs.

Experts believe rising temperatures blamed on global warming have badly hit the salmon's feeding grounds with related changes in current patterns also affecting their migration.

Roger Brook, director of the Argyll Fisheries Trust, said: "Salmon are in decline everywhere but they're declining more on the west coast of Scotland and they're declining more the further down the west coast you go.

"It's dreadful now in Argyll.

It's a crisis in Argyll.

I don't know whether it's too late now to put it right."
This year's cold spring and the summer heatwave created the "perfect storm" for poor fishing conditions.

But experts believe the steep decline in numbers since the 1960s is deep-rooted and warn the future is bleak.

Survival rates for salmon at sea have fallen as low as 3 per cent with global warming and ocean fishing fleets among the likely causes.

Professor Ken Whelan, a leading salmon specialist investigating the downturn, said: "Absolutely there's a crisis in salmon fishing.

What we have now is a situation where you're looking at very modest numbers of fish coming back and you really can't afford to lose any from any kind of man-made effects."

Andrew Flitcroft, the editor of Trout and Salmon magazine, said: "This has been undoubtedly the worst season I've witnessed in my lifetime."

In January 2017, the collapse of Alaska's salmon fishing caught the headlines.

 
The federal government issued a disaster declaration for Alaska's pink salmon fishery and several other salmon and crab fisheries along the West Coast. 
Gov. Bill Walker requested the declaration after the 2016 pink salmon harvests in Kodiak, Prince William Sound, Chignik and lower Cook Inlet came in far below forecast, the Alaska Journal of Commerce reported.

 
The estimated value of Kodiak's catch in 2016 was about $2 million, compared to a five-year average of $14.6 million.

 
The disaster declaration granted by U.S. Secretary of Commerce Penny Pritzker on Wednesday gives Kodiak and the other Alaska fisheries the ability to seek disaster relief assistance from Congress because of the unexpected large decreases in salmon returns.

Salmon dying from warm seas

Large numbers of salmon (that translates into millions of dollars) are dying in fish farms (themselves damaging to the environment) in presistently- warm seas for which they are not adapted.

Read between the lines. All that interests these sickos is the loss of revenue for the company.

Millions lost after warm seas kill salmon

Large numbers of salmon are dying in the Marlborough Sounds creating a "multimillion-dollar problem" for New Zealand King Salmon.

(Foto: New Zealand King Salmon)

Stuff,

13 March, 2015

NZ King Salmon chief executive Grant Rosewarne said warm sea temperatures at the company's Waihinau Bay farm, in Pelorus Sound, had contributed to the deaths. Rosewarne would not say for commercial reasons how many salmon had died, or how many fish were at the farm, but said the mortality rate was a "multimillion-dollar problem to solve".

Water temperatures at the Waihinau Bay farm had stayed above 18 degrees Celsius for three months, Rosewarne said.

"I don't think we've ever had it quite as bad as this year."

King salmon cannot regulate their body temperature. They function best when water temperatures are between 12C and 17C.

The increased salmon death rate in the Pelorus Sounds started in mid-February, Rosewarne said.

The water temperature dropped about half a degree last weekend after rain, but was still above 18C.

"We won't really see an improved situation until the temperature starts to drop," Rosewarne said.

"We're completely at the whim of the weather."

The Waihinau Bay farm is the only NZ King Salmon farm affected by higher than normal mortality rates.

No "primary pathogen" was pinpointed during investigations into what was causing the fish deaths, and there was no risk to human health, Rosewarne said.

Staff were "extremely disappointed" about the deaths and had done the best they could for their stock, he said.

"Within the constraints we've got, we have done everything possible to keep the stress low and give these fish the best chance possible of getting through the summer."

Losing fish in what was already a tight market had disappointing consequences for company growth, Rosewarne said.

"The losses at Waihinau Bay will impact our production in the short-term, however we have enough time to put a plan in place to avoid significant effect.

"Our longer-term production is not affected, although we will have to re-assess our site utilisation."

Lower flow water sites, such as the Waihinau Bay farm, were particularly at risk of sustained periods of high water temperatures.

Rosewarne said staff were unable to move the fish to another site because it would put further stress on them, and there were no suitable alternative sites for the fish.

The two-year-old salmon at the Waihinau Bay farm had been at sea for about nine months.

The temperature was not the only factor contributing to the large number of salmon deaths, Rosewarne said.

"It's never the sole reason. It's one of the more extreme things that can stress the fish out but there's other things that can affect it as well."

Giving the fish a nutritious and easily digestible diet helped ease the stress on them, Rosewarne said.

The company had changed to a more expensive feed at its Waihinau Bay farm after a high mortality rate last year, but the feed had not been as successful as hoped.

There would be another review of feed after the high number of salmon deaths this summer, Rosewarne said.

Other strategies to limit the effect of high water temperatures included selecting and breeding fish that had survived high temperatures in the past, and reducing stress on fish by keeping seals at bay with a large gap between the fish pen nets and the outer predator nets.

The dead fish are barged out from the farm and transported to North Island company Kakariki Proteins.

Staff at Kakariki Proteins sterilise and dry out the fish, extracting the oils and protein, before turning the salmon into dried pet and animal food.

Kakariki Proteins does not make products for human consumption.

- The Marlborough Express