Tag Archives: coho

The shrinking of Alaska’s salmon

Salmon returning home to spawn

Salmon is a vital resource in the state, so it should come as no surprise that Alaska has been studying salmon since before statehood. For over 60 years, the Alaska Department of Fish and Game has kept detailed records of length, weight, age and escapement for four species of Pacific salmon that spawn here.

Graph credit: University of Alaska – Fairbanks

The salmon that return to Alaska from their time in the ocean, are now smaller than they have been historically. The reason: They are returning to spawn at a younger age.

The Chinook, Alaska’s state fish, has been the hardest hit. King salmon are, on average, coming in at 8% smaller than in the 1980’s. The coho, or silver salmon is 3.3% smaller, chum is at 2.4%, and the sockeye 2.1. The decrease in size has accelerated since 2010 for all four species.

At first glance, what is 8% really? Well, the ramifications are large and far reaching. The Yukon-Kuskokwim River system is the largest subsistence area in the entire country. It takes more fish to feed a family. Commercial fishermen also must catch more fish to make the same amount of money.

Environmentally, the entire ecosystem relies on the salmon returning to spawn. Just the reduction in chinook salmon size alone means a reduction of 16% in egg production, i.e. future salmon populations; and a 28% reduction in nutrients going back into the river systems. For the pocket book issues: the reduction in king salmon means a 26% reduction as a food source, and a 21% reduction in the value of the fishery.

There does not appear to be one smoking gun for the change in Alaska’s salmon population, but a series of events that effect each species differently. Warming ocean temperatures are partly to blame, but so is competition between wild and hatchery populations. Size-selective fishing seems to also be a part of the equation, especially with the mighty chinook.

Wild salmon can stay out in the ocean for up to 7 years, but now they are often returning to fresh water to spawn at 4 years.

Sources: University of Alaska – Fairbanks; Alaska Dept of Fish & Game; Alaska Public Media; Fairbanks Daily News-Miner


Catch of Day Two

We caught some fish

Normally, we head down to Seward with the idea that we may get one day of fishing in with decent seas. This year, we went down knowing we had perfect weather for the entire time on the coast.

The second day out, we hit the silvers early and often outside of Resurrection Bay. Once we hit our limit there, we came into the Bay for the possibility of three more silvers each. The fishing within Resurrection Bay was considerably slower, but we did catch some cohos.

Since we were planning on being out on the water all day, we wrapped things up by going after rock fish. It took us a couple of stops to find them, but when we did, it was nonstop action. Rock fish are a blast to fish, and they are incredible eating too.

It was a great day out on the water, and I have a nicely stocked freezer as winter approaches.

It’s not full, but the freezer holds some fish


Fishing Resurrection Bay

For the second consecutive year, we had incredible weather for our fishing trip out of Seward. Unfortunately, we did not catch as many silvers as last year. We knew we were a bit early for the coho run, but my buddy started a new job this spring, and he lost his time-off flexibility. Still, we did okay on cohos, and we did extremely well catching rockfish. There are 102 known species of rockfish, with 30 of them in the Gulf of Alaska. We caught several yelloweye rockfish, which are bright orange in color, and a couple of tiger rockfish, which are orange with black stripes.

I should stress the reality, that weather like this is extremely rare, and welcome, in the Seward area. To the left of the above photo is Bear Glacier, which the deck hand said hadn’t been visible for two weeks.

Once we started to get bait ready, the seagulls magically appeared. The deck hand threw several herring scraps up in the air, for the seagulls to catch. That action not only increased their numbers, but their aggressiveness too.

The ride out to the fishing area was to be 45 minutes, but wildlife viewing increased that time frame. We saw otters galore, as well as a group of sea lions in the above pic. There were about a dozen sea lions dozing in the sun, along this small island’s shoreline.

We also came across two orcas in the Bay. One adult, probably the mother, and her calf. It’s not a good pic, with the boat rocking, and the zoom way up. The fin of one of the orcas, and the water vapor from its blowhole is just visible in the center of the frame. The initial sighting was as close as they came to the boat. At one point, my buddy said, “You know they are going to pop up on the other side.” Sure enough, the two orcas did resurface off the opposite deck. At this point, I finally relented and pulled my phone out of my waterproof pocket, to catch this final glimpse of the orca. My apologies for being slow, but I had cohos on my mind.