Norton Sound residents have reported salmon die-offs in unusually large numbers during the last week.
According to the Norton Sound Economic Development Corp., dead pre-spawned pink salmon were found in multiple river systems last weekend.
The corporation’s fisheries director, Wes Jones, says the numbers of dead humpies being reported are larger than what’s normally seen in the Norton Sound region, spread out across several communities from east to west.
“There’s been reports all the way from here (Unalakleet) in Eastern Norton Sound all the way over to the Nome area. And it’s a very widespread area. The big change is that it appears that it is a much bigger event happening in eastern Norton Sound than what you’re seeing as you get closer to the Nome area.”
One of those reports came from Sophia Katchatag, the community coordinator for the Native Village of Shaktoolik. On Tuesday evening, Katchatag took her family up the Shaktoolik River, to a place called Jink-wok, to swim and cool off from the hot weather. She found a creek with “one area completely filled with dead pinks floating on top of the river.”
Katchatag didn’t pick any of them up, and she doesn’t intend to eat them, either.
Courtesy of adn.com
About eight million farmed salmon have suffocated in northern Norway over the past week as a result of persistent algae bloom, an industry body estimated on Thursday, a blight that some experts suggest has been aggravated by climate change.
Norway is a dominant producer of farmed salmon, and the economic impact of the bloom is significant.
A statement from the Norwegian Directorate of Fisheries estimated the amount of salmon lost at 11,600 metric tons, worth about 720 million kroner, or more than $82 million. An industry group, the Norwegian Seafood Council, suggested the total could be much higher.
“Preliminary numbers point to eight million dead fish — corresponding to 40,000 metric tons of salmon that won’t reach markets,” Dag Sorli, a spokesman for the council, said in an email on Thursday. He put the value of the losses at 2.2 billion kroner.
Courtesy of nytimes.com
The company Salmones Camanchaca, reported abrupt and sudden mortality of 123 tons of salmon at the Pilpilehue center, located in ACS 10 B, near the city of Castro, due to the presence of concentrations over 250 cells per ml of Pseudochattonella cf verruculosa , on the surface, activating immediately its plan of action against massive mortalities. The event would have occurred on the previous night and early Thursday morning.
Sernapesca regional staff was immediately established in the farming center stating that mortality is being withdrawn according to the available logistics, in addition to informing the regional inter-institutional environmental contingency committee.
It should be noted that Sernapesca keeps in surveillance the centers that make up the concession group 10B, ACS to which the Pilpilehue center belongs, since February, considering the presence of Pseudochattonella cf verruculosa , in concentrations under alert levels.
Courtesy of sernapesca.cl
An algae bloom in the Jervis Inlet in British Columbia, Canada, has killed an estimated 250,000 fish at two Grieg Seafood’s salmon farms in the area.
The Bergen, Norway-headquartered company, which operates several salmon farms and a hatchery in British Columbia, said an outbreak of heterosigma, a species of microscopic algae, spread in high concentration through the entire water column in the inlet.
“Grieg Seafood continuously works to improve biosecurity and all of Grieg Seafood’s sites perform algal monitoring by taking daily samples which are analyzed using advanced image analysis techniques. This allows for the identification of the species, prevalence and depth distribution of any algae present,” the company said in a press release.
However, due to the abundance of the algae, the company said use of aeration treatments or other measures to protect its fish “could not prevent the incident.”
The bloom killed an estimated 50 percent of the fish at the two sites, a total loss estimated at 1,000 tons. The fish were scheduled to be harvested in the second half of 2018, the company said.
In its release, Grieg Seafood said it carried insurance, and that the estimated cost of the die-off, including individual share of insurance, will total around NOK 25 million (USD 3.1 million, EUR 2.6 million). That cost will be realized on the company’s second-quarter financial statement, Grieg said.
Courtesy of seafoodsource.com
After it is revealed more than a million farmed fish died within six months in Macquarie Harbour, one salmon company effectively says “we told you so”, another says the dead fish were “replaced quickly” and the third says it has no obligation to detail its losses to the public.
Tasmania’s Environment Protection Authority (EPA) confirmed 1.35 million salmon died in Macquarie Harbour on Tasmania’s west coast since last October.
An area management agreement report provided by Huon Aquaculture, Petuna and Tassal found the deaths were mainly due to an outbreak of pilchard orthomyxovirus (POMV), transferred from wild populations.
That report had not been made available to the public.
EPA director Wes Ford told ABC Hobart the 2017 “mixing of young fish with old fish” could exacerbate the likelihood of disease in the population.
“POMV can be exacerbated by stress caused by heat, low oxygen, and I think this summer we’ve seen some elevated temperatures and clearly some concerns about oxygen.”
He confirmed the EPA would be reducing Macquarie Harbour’s biomass limit by 21 per cent over the next two years, from 12,000 tonnes to 9,500 tonnes.
Courtesy of abc.net.au