Thursday, February 21, 2013

Salmon, Alaska, 2002


8/29/02
Additional Alaska notes

Notes from a conversation with Pat Owens
-in 1959, Alaska becomes a state
-local Indians around the Deshka River were Dininah, Athabascans, same general group as the Navajo and Apache, Navajo call themselves Dine
-Athabascan is a Crow Indian word meaning "they who live on the other side of the reeds"
-Matanuska-Susitna Borough is a municipality, (similar to a county), the land is supposed to create revenue or be for the public benefit
-the Deshka River land owned by the Borough will be dedicated as a park, 3000 acres
-the owner of the Deshka Landing had another landing 20 miles upstream in the Susitna river, the state of Alaska bought that land from him to control access and bail him out of bad business practices, but this guy already had the land where the current landing was opened in 1988, so he built the Deshka Landing and tried to sell that to the state as well, saying he couldn't make enough money and that boaters wouldn't pay the 20 dollar launch fee, but the state didn't buy, he had already taken them for a ride, so he sold lots to multiple owners, the upshot, Deshka Landing opened up the Deshka to a lot of dickheads, anyway, guys with $50,000 boats can afford the 20 dollars
-in 1988 the Deshka Landing was built, before that, the closest landing and access from the Susitna River was 1 hour upstream, that weeded out most of the Deshka River use as it was too hard to get there, too dangerous for the novice
-with the creation of the Deshka Landing, the Borough had to take action, there was trash everywhere, outfitter camps, open toilets, tent cities, there was a big clean up and a beginning of the regulation of use
-our girl Pat at the Borough is known as a bad person because she put the screws to the unbridled use
-what they are working on is eliminating the idea that people can dock at every single campsite, the Borough will put in floating docks and try to control the access and use of the campground area, which is adjacent to the best fishing in the river because the salmon pool at the mouth of the Deshka, just as they come out of the Susitna, to accustom themselves to the difference in water chemistry, as the Susitna is glacial melt water and the Deshka is all rainwater, tanniny run off
-the river is now silty from wakes and bank erosion
-the locals think the government is arbitrary, that the Borough just happened to get a grant and now just need to spend the money somehow
- it is a question of revenue use and resource management
-the trail that is now at the point, at the mouth of the river, was once 40' from the water in 1988
- Pat says they are just getting this situation in the bud compared to the Kenai

Notes from Neil "Sticks" Stichert's lecture to us about salmon, Neil is fisheries biologist for the USFWS (US Fish and Wildlife Service) in Anchorage

The health of the river is important to the local economy.  Guides make lots of money taking people out.  The Deshka is an intact, natural wild fishery, there is no hatchery.  The salmon are counted upstream at a fish weir by state Fish and Game employees.  This count determines to some extent, how the Fish Board will open the season or shut it down, it is science, but a good dose of politics too. The habitat needs to be managed to preserve the quality of the fishing.

There are 5 species of salmon in Alaska.  Pink and Chum salmon are coastal fish and go inland up to 20 miles; they spawn in estuaries and intertidal areas.  The eggs over winter in gravel, then hatch and go immediately to the ocean.  Chum, are called Chum because they are not good eating, people use them for dog food.  Sled dogs eat Chum salmon. King, Coho and Sockeye salmon spawn farther inland; the eggs overwinter in gravels, in the Spring they hatch into alevins (baby fish with egg sack still attached), which mature into fry, which then mature into smolts, which are the young salmon which go out to sea.  The fry get eaten a lot.  The borders of the riparian habitat zone where the fry live are very important for their survival, the areas give cover, shade and also are a source of food, as insects fall into the water there.

Sometimes immature males come back to spawn; they are called jacks.  You can catch 10 jacks a day, but only 1 mature King.  The jacks have mature sperm and they try to spawn too, why not?

On the river banks, plants function to bind together silty soils, maintaining the shape of the river, controlling flooding and keeping up a good water quality by controlling silty erosion.  When boats go upriver really fast and make huge wakes, these upstream wakes put stress on the banks that they were not meant to have.  Upstream wakes are bad and  put unnatural forces upon the river's banks.  The shape of the river channel has co-evolved with plants and animals adapted to a particular channel shape and stability, not a constant bombardment from upstream wakes and the ensuing constant erosion of silt and muddying of the water.  The unnatural impact of upstream wakes changes the dimensions of the channel; the plants get farther away from the water, the river becomes wider and shallower, there is more sun exposure and heating of the water.  Our job on SCA, with Neil and the USFWS, is to build the banks back out and bring the vegetation back to the edge of the natural channel. In terms of channel morphology, (Sticks has a great vocabulary), there is linear impact, i.e., boats and people break down the banks by docking and climbing up, destroying vegetation, fostering more erosion.  The channel was straight, now it is jagged with broken down banks.  The Borough will enforce a no wake zone for a mile or more right at the mouth of the river.

Salmon are anadromous fish; they are born in fresh water, live their adult lives in salt water and return to fresh to spawn.  Anadromy is the life cycle of these fish.  There are tons and tons of food in the north Pacific ocean and also in the north Atlantic.  In terms of evolution, the fish simply had an adaptive radiation out into salt water to take advantage of the rich food sources.

Steelhead are ocean going Rainbow trout, they are genetically the same as a fresh water Rainbow, but they breed in separate populations.  Steelhead only breed with Steelhead.  Steelhead (are a transition species between trout and salmon, and) are actually in the same genus as salmon.  I have an e-mail into Sticks to ask him more about trout and what they really are. Other trout are Dolly Varden, from a Dickens novel, they have a grey dress with pink spots, brook trout, lake trout, and char.  Rainbow trout are land-based Pacific salmon.  Cutthroat trout we saw in Yellowstone, and they are endangered by introduced lake trout.  Grizzly bears eat spawning cutthroats in the Yellowstone lake and River tributaries.

The Deshka has runs of King, Coho, Pink and Sockeye salmon.  Kings are also known as Chinook, and Cohos are also known as Silver and Whitefish.  Kings and Cohos are piscivorus, carnivorous fish; they chase a lure.  Pink and Sockeye salmon are planktivores and are red colored because they eat red colored plankton.  In the Deshka, we just missed a run of Pinks said to be a million fish or more.

Pacific salmon species names:
Onchorynchus (hooked nose) tshawtscha: King
                                                nerka: Sockeye
                                                keta: Chum
                                                gorbuscha: Pink
                                                namycush: Coho
                                                mykiss: Steelhead/ Rainbow trout
                                                clarkii: Cutthroat trout
These above trout are basically landlocked salmon, for whatever reason, landslides, glacial lakes, etc.  Kokanee are landlocked Sockeye salmon.  Chars are salmonids that diverged earlier in the family tree.  Of the char there is Salvelinus malma, Dolly Varden and S.  artica, arctic char.  The family of all of them is Salmonidae.

Salmon are part of the whole ecosystem.  You might say salmon are a keystone species, the mother species, from which all others in the area derive a benefit.  The other species all depend on salmon.  Salmon eat and are eaten, by many different organisms.  As an indicator experiment, scientists put low level radioactive isotopes in salmon fry.  These fish went out to sea, came back, spawned, died and later the scientists sampled for the isotopes in the region and found them in 156 different organisms, in grass, trees, other fish, eagles, bears, flies, dragonflies, mayflies and other macro invertebrates. 

When people have tried to restore salmon runs, it doesn't work if you just let the fry go.  There needs to be enough biomass to fix a salmon run, What they had to do was fly and boat in tons of dead salmon to kick start the ecosystem, to get and support enough life in there for the fry and smolts to be able to eat things.

On the Kenai River, in Kenai Borough, a lot of land was sold for private use, for miles and miles. Private owners alter the environment drastically with roads and docks, insecticides, etc.  There is a political aspect too, wealthy influential people on the river versus needed conservation measures to preserve the channel and the fish.

Notes from a science book on salmon
-definition of the Pacific northwest: any place salmon can get to
-because of the effects of post glacial run-off/melt off, and climatic drying from 14,000 to 5 or 6000 years ago and also a lack of modern levels of vegetation, salmon may only have reached their modern levels of abundance 5000 years ago
-abundance of salmon is one of the natural wonders of the world
-strategy for survival, don't put all your eggs in one basket, stray salmon will colonize new rivers, this is how they adapted to glacial advances and retreats, life history variants of the genus, the different species represent a not putting all eggs in one basket, each species is an ecotype that finds a niche in the riverine system
-cave men in Europe were salmon fishermen, salmon ran into Spain and southern France, caves were located near river bottlenecks, climate was colder, colder waters off of southern Europe
-Columbia River as the mother of all salmon, when other rivers were iced over or full of glacial outwash, mudslides, all the post glacial effects which made rivers hard for salmon, the Columbia was always open and safe
-salmon and habitat are inextricably linked, they have to be considered as a single unit, "a chain of favorable environments connected within a definite season in time and place."
-life history variants of each species, in different parts of the river, a different pathway the salmon follow through a chain of favorable environments
-as the climate or habitat changes, some life histories will be favored while others will be disadvantaged, the survival value of a given life history will vary over time
-life history diversity is a critical key/ legacy of salmon evolution and survival in complex landscapes in the Pacific northwest, especially in the dramatically changing Pleistocene ice ages and interstadials
-it is the view of nature itself that has caused extinction and the failure of efforts to restore salmon, differing assumptions about nature, industrial economical use of land and water is antithetical to salmon restoration and to maintaining existing healthy runs
-what we have still in Alaska is an unchallenged myth, of an unlimited frontier
-you can't have salmon without the whole river ecosystem intact, with the threats of grazing, logging, mining, electrical generation, fertilizer and pesticide pollution, sport fishing, commercial fishing all impacting any given river, the salmon are fighting a losing battle, all these players blame each other and don't work together
-I saw Lonesome Sam, the only salmon who made it back to the headwaters of the Salmon River in Idaho, in 1996, they froze his seed, he looked pretty beat up, God, the only one who made it back to spawn, that is like Bush winning Florida
-in the north west Olympic Peninsula, Indians harvested around 45,000 salmon a year, now many of these runs are gone, extinct
-salmon are like silver threads penetrating dep into the fabric of the Pacific northwest
-hatchery salmon are a technical solution bred out of the industrial economy world view
-hatchery salmon represent "instrumental thinking", focusing on the specifics without seeing the forest from the trees

Notes from the midnight sun 

The sun makes a weird arc in the sky.  The day is so long because the sun cuts a horse shoe shaped path.  It is strange to have the arc shaped as a horse shoe, there is a sense of it always being early and never late, never time to go to bed.  I couldn't sleep good the whole time, even though I tried, I would get up at 3 and 4 in the morning and not be able to go back to sleep because it was light.  It was only twilight dark for an hour or so.





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