Tag Archives: Atlantic salmon

Salmon for the forests; forests for the salmon… shocking…

Globe and Mail image

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I’m appreciative of the most recent Mark Hume article in the Globe and Mail.

However at the same time, it’s rather exhausting that these sorts of things come to light so slowly.

I tell the story often…

…when I was growing up on Haida Gwaii, I spent an immense amount of time fishing; largely for Pacific salmon. Coho, humpies, the odd Chum (Dog), and from time to time Chinook. Whenever we brought fish home, we had generally hiked them up the river on an alder branch broken off a tree nearby the closest “meathole”. Generally, we would clean the fish once we got home. Our mom told us for years to bury any heads and guts in the garden, but deep enough that some dog or cat wouldn’t dig them up.

Fertilizers of all sorts are generally made out of fishmeal — and in years gone by were a central component. Industrial fisheries in some far-away ocean grinding up some little fish on the ocean food chain to turn it into cheap fertilizer.

So if fishmeal, fish guts, and fish heads are good fertilizer in a garden — why they hell wouldn’t they be the same in the forest?

Indigenous cultures have been saying this for eons — “everything is connected.”

Ever look at a west coast totem pole… everything is connected.

Ever look at west coast, or even interior art… (you guessed it… everything is connected).

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So says the article:

When bears, wolves and other animals drag salmon carcasses from spawning streams they cause an intricate chain reaction that changes the nature of the surrounding forest, according to new research from Simon Fraser University.

Plant species that efficiently take up nitrogen from the decomposing bodies of salmon flourish – and soon there are more song birds, drawn by the dense growths of wild berry bushes and prolific insect hatches.

“The shift in dominance of some of these plant species was a lot more dramatic than I frankly had expected. Species like salmon berry it turns out are really well named. They tend to dominate in streams that have a large number of salmon,” said Prof. Reynolds, who oversaw the research project which was led by Morgan Hocking, a postdoctoral fellow.

In addition to looking at plant species, Prof. Reynolds said it is important to consider the physical characteristics of a stream as well, because animals avoid fishing in places where getting out of the water with a salmon is difficult because of steep banks.

“If it is a small stream and has shallow banks, then there is a lot better chance that the plants will be effected by the carcasses, because these are more accessible to bears,” he said.

I’m certainly appreciative of the research by Reynolds and Hocking. I’ve read quite a bit of their research before and it’s great to see some of it going a bit mainstream.

This is an image from . It’s kind of ‘techie’ and scientific; however shows the same connections — or more like has been showing these connections through ‘scientific’ channels for quite some time.

Salmon enter the near-stream environment from bottom stage left, and become food, nutrients, energy for a pile of critters. (make sure you glance at the date: 1994)

"nutrient vectors"?

And well… what to our wonder…

Apparently salmon depend on the forests of the stream ecosystems they swim up to spawn and then often (for some species) spend several years in as baby salmon.

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An article just the other day from the Atlantic Salmon Federation:

OTTAWA – A first of its kind report by the Pew Environment Group reveals that Canada’s boreal, the world’s largest intact forest and on-land carbon storehouse, contains more unfrozen freshwater than any other ecosystem. As United Nations’ International Year of Forests and World Water Day coincide, world leaders are grappling with water scarcity and pollution – and scientists are calling boreal protection a top global priority.

… [because Canada’s Boreal Forest]:

  • contains 25 percent of the planet’s wetlands, millions of pristine lakes, and thousands of free-flowing rivers, totaling more than 197 million acres of surface freshwater;
  • provides an estimated $700 billion value annually as a buffer against climate change and food and water shortages;
  • offers the last refuges for many of the world’s sea-run migratory fish, including half of the remaining populations of North American Atlantic salmon.

“A first of its kind report…”??

Maybe for the Pew folks… but certainly not a unique idea. (as i’ve mentioned before… marketing is everything; everything is marketing).

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And so really… what all of this is saying is… if we’re going to do true “Ecosystem-Based Management” we better really think about the entire spectrum of ecosystems, and the endless interlinked relationships… and we should probably be cautious and use precaution because we might mess up a delicate balance…

But have no fear I tell you… because over ten years ago (1999) the Department of Fisheries and Oceans devised this incredible draft concept: Canada’s Wild Salmon Policy. One of the central components of that Policy was to be “Ecosystem-based management”…

How are we doing?

Utter failure.

Have you seen the allocations of salmon for species other than humans?

Like maybe Species at Risk Act (SARA) listed Resident Orcas in the Salish Sea that depend heavily on Fraser Chinook as a food source, or dwindling Grizzly Bears, or ?

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And south of us… have no fear, I found on the website that there is a sub-committee of a Committee holding a sub-Panel of a Panel to devise a Plan…

Sounds promising, let me tell you.

The Pacific Fishery Management Council (Council) will convene meetings of the Ecosystem-Based Management Subcommittee (Subcommittee) of the Scientific and Statistical Committee (SSC) and the Ecosystem Advisory Subpanel (EAS) that are open to the public.  Please note, this is not a public hearing; it is a work session for the primary purpose of considering recommendations to the Council on the development of an Ecosystem Fishery Management Plan (EFMP).

I don’t mean to be the today… but come on!

are you kidding?

I’m really not sure what an “ecosystem fishery” management plan is… isn’t that what we all do… go fishing in an “ecosystem”?

The Subcommittee session will focus on incorporating ecosystem science into the Council management process.  The joint session of the Subcommittee and the EAS will focus on the National Oceanic and Atmospheric Administration’s California Current Integrated Ecosystem Assessment [take deep breath]. The EAS will also discuss available science and its potential application with the SSC and will develop recommendations on the EFMP’s purpose and need, regulatory authority, and management unit species for the June 2011 Council meeting in Spokane, Washington

(I’m not making this stuff up… true quotes)

I just don’t understand why they don’t form an advisory subsubcommittee (S2C) that will integrate a framework that will inform the sub-Panel of the Board of the Directors recommendations to the post-science, pre-conference, strategic planning sub-Group — which will in turn provide a background matrix and risk-management scaffolding to guide regulatory management and authority of that sub-species, pre-migratory, complex habitat, ecosystem-based, policy informing database and ecological modeling platform.

Maybe that’s why Dr. Reimchen’s work has never been officially incorporated into Department of Fisheries and Oceans “ecosystem-based management” policies. He must not have been on the sub-committee of the sub-Panel reporting to the EBM Board at the DFO…

But hey… thank ghad… there is contact info for the upcoming gathering down south:

For further information regarding the ecosystem-based management advisory subpanel and subcommittee work sessions, please contact…

… Requests for sign language interpretation or other auxiliary aids should be directed to … at least five days prior to the meeting date.

I, by no means fault the effort to provide access to individuals with disabilities — that’s important everyhwere… I’m just wondering if they’ll have “translation” services available. I think that could be a mandatory “auxiliary aid” for any of these salmon processes.

I was a at a conference in Portland, Oregon last year and there were translation services for Japanese and Russian participants — several times I was looking for the translation services for gobbledeegook, bumpf, bureaucratese, ‘science-chatter’. I’m sure some folks have been looking for these services at the Cohen Commission looking at declines [aka crash] of Fraser salmon in 2009…

It’s a disease… or a bumpf-ease… could one be so bold as to say “plain language might save the wild salmon”?

And maybe a return to a thousands and thousands of years old understanding… salmon are essential to forests; forests are essential to salmon.

“Everything is connected; connected is everything…”

“Analogies between commercial poultry production and Atlantic salmon aquaculture may be informative”

Some interesting articles over at Wired magazine that I hadn’t picked up before — and maybe somewhat informative as the Cohen Commission into Fraser sockeye declines starts going over related information:

Brandon Keim writes last summer, 2010:

which is the diseased-ridden salmon?

Salmon Killer Disease Mystery Solved

The identity of a mysterious disease that’s raged through European salmon farms, wasting the hearts and muscles of infected fish, has been revealed.

Genome sleuthing shows the disease is caused by a previously unknown virus. The identification doesn’t suggest an obvious cure — for now, scientists have only a name and a genome — but it’s an important first step.

“It’s a new virus. And with this information now in hand, we can make vaccines,” said Ian Lipkin, director of Columbia University’s Center for Infection and Immunity, a World Health Organization-sponsored disease detective lab.

Two years ago, Norweigan fisheries scientists approached Lipkin and asked for help in identifying the cause of Heart and Skeletal Muscle Inflammation, or HSMI, the official name for a disease first identified in 1999 on a Norweigan salmon farm.

Infected fish are physically stunted, and their muscles are so weakened that they have trouble swimming or even pumping blood. The disease is often fatal, and the original outbreak has been followed by 417 others in Norway and the United Kingdom. Every year there’s more of the disease, and it’s now been seen in wild fish, suggesting that farm escapees are infecting already-dwindling wild stocks.

Lipkin’s team — which has also identified mystery viruses killing Great Apes in the Ivory Coast, and sea lions off the U.S. West Coast — combed through genetic material sampled from infection salmon pens, looking for DNA sequences resembling what’s seen in other viruses, and inferring from those what the HSMI-causing sequence should look like. Lipkin likened the process to solving a crossword puzzle. The researchers eventually arrived at the 10-gene virus they called piscine reovirus, or PRV. The virus was described July 9 in Public Library of Science One.

Related reoviruses have been found on poultry farms and cause muscle and heart disease in chickens. “Analogies between commercial poultry production and Atlantic salmon aquaculture may be informative,” wrote the researchers. “Both poultry production and aquaculture confine animals at high density in conditions that are conducive to transmission of infectious agents.”

Such findings may be useful as the Obama administration develops a national policy for regulating aquaculture.

“If the potential hosts are in close proximity, it goes through them like wildfire,” said Lipkin.

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One mystery ‘solved’ and another found… Keim’s newer article from early in the new year 2011:

Mystery Disease Found in Pacific Salmon

diseased salmon?

Traces of viral activity have been found in a mysteriously dwindling population of Pacific salmon, hinting at an explanation for deaths that have so far baffled scientists.

In fish returning to Canada’s Fraser River, site of the die-off and home to one of North America’s last great sockeye salmon runs, researchers discovered patterns of gene expression usually seen when a body fights a virus.

The findings are not conclusive, and pose many as-yet-unanswered questions. “This is the discovery stage,” said Scott Hinch, a University of British Columbia salmon ecologist. “But it raises all kinds of concerns.”

The importance of salmon in the Fraser and elsewhere isn’t only in the intrinsic marvelousness of creatures that are born far from the sea, spend adulthood thousands of miles away in the open ocean, and return in a final blaze of upstream glory to spawn and die in the waters of their birth.

The Fraser River’s wild salmon fishery is worth about $1 billion annually. And that’s just the obvious value. Salmon migration is also a physical circuit to the sea, each body a mass of nutrients carried from ocean to continental interior, scattered by scavengers across the land.

Some researchers think the Pacific northwest’s forests are so lush not just because of the region’s climate, but because its soils were fertilized for thousands of years by salmon bodies — an extraordinary line of natural credit, now threatened by dams and overfishing.

Unlike other major river systems on North America’s Pacific coast, however, the Fraser is largely undammed. Even as other Pacific salmon populations vanished or entered boom-and-bust cycles typical of ecosystems on the brink of collapse, its own populations persisted. Until the early 1990s, about 8 million sockeye salmon returned each year to spawn. Then their numbers started drop.

In some years, half of the Fraser’s returning sockeye die before spawning. In other years, mortality is closer to 95 percent. “The causal mechanisms of this premature mortality have eluded multidisciplinary research by scientists and fisheries managers,” wrote Hinch and his colleagues, led by biologist Kristina Miller of Fisheries and Oceans Canada, in a Jan. 14 Science paper.

In less academic terms, the fish are dying, and nobody can figure out why.

Five years ago, the researchers noticed that some Fraser sockeye appeared to show unusual signs of physiological stress while at sea. In the new study, they take that work to the genomic level. Salmon were caught, biopsied and tagged with radio transmitters in the ocean, about 120 miles from the Fraser; at the Fraser’s mouth; and again on their spawning grounds. For each stage, the researchers could look for patterns in gene expression, then see if they tracked with differences in fate.

A pattern stood out. Many of the fish displayed high activity in a set of genes typically activated in response to viral infection. When this genomic signature was found in ocean fish, they were 13.5 times more likely to die before reaching the Fraser. When the signature was found in fish tagged in the river, they were 50 percent more likely to die before reaching their spawning grounds. In fish tagged on their spawning grounds, those with the signature were 3.7 times more likely to die without mating.

“It’s excellent science,” said fish microbiologist James Winton of the U.S. Geological Survey, who was not involved with the research. “This appears to be quite important.” Winton applauded the researchers’ approach, which had never before been used in salmon, a species for which researchers only notice the most obvious diseases.

“The fact that, within the physiology of these fish, you can see signs of who is likely to make it and who won’t, is amazing,” said Michael Webster, a program officer at the Gordon and Betty Moore Foundation’s Wild Salmon Ecosystems Initiative.

However, though a virus is the most likely culprit, it hasn’t yet been isolated. The findings open up a range of new questions, said each of the researchers: If the pattern is indeed caused by a virus widespread in the Fraser, where did it come from? Was it introduced, just as infectious hematopoietic necrosis — a lethal virus endemic in Pacific salmon — has been transferred around the world? If it was always there, did it suddenly evolve into a more virulent form? Or is something else exacerbating its effects?

The researchers suspect climate has a role in the answers to some of these questions. In the last 40 years, the Fraser’s waters have warmed by about 4 degrees Fahrenheit, with most of that coming in the last 15 years. “In some cases, that temperature alone is pushing fish stocks to the edge,” said Hinch.

Heat and stress can weaken fish, making them more vulnerable to disease. Changing temperatures also change the ranges of microbes and parasites, allowing them to move into new regions. Over the last decade, the Yukon River has been invaded by Ichthyophonus, a parasite that threatens the river’s Chinook salmon population [along with the Marine Stewardship Council eco-certified Bering Sea pollock fishery]. It’s believed to have spread because of changing temperatures.

“We use the term emerging diseases. In humans, it’s the SARS coronavirus, or avian flu. They also occur in fish. Part of (their increasing incidence) is due to the fact that more people are looking, with better tools. Part of it is due to us moving pathogens around the globe. And part of it due to increasing stress on these animals,” said Winton. “At some point, we’re going to add the last straw.”

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Does increasing stress, increasing temperatures and the like maybe suggest we should be even more precautionary in our ‘management’?

Maybe more salmon should get to the spawning grounds?

Maybe we’ll need to forgo some ‘economic’ gain now, to preserve for the future… you know… like a savings account, or an RRSP? (we certainly wouldn’t want that to stand for Registered Reductions in Salmon Populations).

Remember the last sentence of the previous article… “If the potential hosts are in close proximity, it goes through them like wildfire”… and combine with the one above: “At some point, we’re going to add the last straw.