Bristol Bay Sockeye Salmon see Record High Returns

Published at Harvesting Nature December 17th, 2021

In a year when salmon and steelhead returns were seeing historic lows across the Pacific Basin (2021), Bristol Bay, Alaska noted record high sockeye salmon returns at over 66 million fish, shattering the 2018 record of nearly 63 million. Bristol Bay salmon returns have been studies since the 1940’s and this year was only the third time a sockeye return has broken 60 million fish. Conversely, Alaska’s Yukon River saw some of the lowest Chinook and chum salmon returns on record.

While a number of anthropogenic and environmental variables currently influence Pacific salmon populations, climate change may have played a role in both the record high and low returns.

“Climate warming seems to have actually benefited Bristol Bay sockeye” said University of Washington Researcher, Dr. Dan Schindler. In cold northern climates, warmer water temperature leads to more food and better growth, and the sockeye of Bristol Bay are currently experiencing optimal conditions. The watersheds draining into Bristol Bay are undeveloped, providing optimal physical habitat as well.

Climate models predict range shifts for virtually all species of flora and fauna in North America, and while the Bristol Bay sockeye are booming, salmon and steelhead from California up through Washington are struggling from warming waters and myriad other environmental factors. Because fish populations fluctuate naturally, the sockeye returns to Bristol Bay may not persist at the present exceptional level, but fishery scientists do expect the runs to remain strong for the foreseeable future.

Thanks to habitat and genetic structural diversity in the Bristol Bay tributaries, these sockeye may prove to be one of the few future Pacific salmon strongholds, barring significant or unpredictable changes in ocean conditions.

Upland Stewardship Begins at Home

What’s the #1 threat to habitat on undeveloped public lands? If you guessed invasive plant species, you get a gold star for the day. Overall, habitat lost to civil development is a critical threat to fish and wildlife, putting tremendous importance on conservation and management of those precious public acres still intact.

Managing public land is important to provide habitat suitable for wildlife species and is accomplished through taxpayer and sportsman’s funds. For federal lands, this means congressional appropriations must be approved for specific geographic areas and funding limits.

While public lands, both state and federal, are at much lower risk of civil development, the economics of habitat management is a major driver in our ability to maintaining high quality habitat, and here is why.

Invasive species are incredibly competitive and successful at overtaking desired native species. With no natural predator controls (i.e. herbivory and parasitism) and an adaptive edge to the climates in which they occur, many species can create monocultures in short order. What’s more is that the increasing cost of invasive species control detracts from government ability to fund general habitat management and enhancement.

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Once established, eradicating an invasive plant is incredibly difficult and extremely costly, in the billions of dollars nationwide, annually. Our ability to control invasive species on public lands can change dramatically with political leadership. And when natural resources budgets are cut, our ability to effectively maintain habitat is hamstrung.

Early Detection and Rapid Response is the normal mode of operation for habitat managers, but budget cuts cause vulnerability in on-the-ground effectiveness. Labor cuts can reduce the number of employees and hours spent afield performing Early Detection monitoring. Supply cuts can reduce the available tools to implement Rapid Response once invasive species are detected, as well as reduce the overall time or acreage that biologists can treat.

High-quality habitat is not just nice to have for an easy, clean hunt. It’s a must for sustainable upland bird species and hunter opportunity. Its easy to assume that habitat management and controlling invasive species lies in the hands of qualified biologists, but make no mistake, quality habitat starts at home with you, the general public.

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⇑⇑ The seat cover in my Tundra harbors a number of invasive species ⇑⇑

As our talented canines careen across the grasslands searching for sharptails or cut through brush following a running grouse trail, their fur picks up invasive weed seeds that can be easily spread to otherwise weed free areas. Tailgate checks and post-hunt spa treatments (for those of us who own long-haired pups like setters and Munsterlanders)  are necessary to remove to potentially harmful grass awns and bur-like seeds.

Most importantly, uplanders that embark on rooster road trips would be remiss if they failed to clean the nooks and crannies of their bird hunting chariot prior to driving half way across the nation. A single germinated seed from a nasty invader like cheat grass (Bromus tectorum) can quickly threaten native species and impact habitat suitability.

Be sure to clean out the truck bed, pet crates and blankets, truck seats and seat covers, spray down floor mats and vacuum the crevasses that can harbor seeds.

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⇑⇑ Cleaning vests, kennels, truck beds, and interiors is critical ⇑⇑

If your truck cap has a carpet liner, inspect it with scrutiny. Your dog will shake in the truck bed, flinging weed seeds onto the ceiling and anywhere else they may attach, simply waiting to be offloaded in an otherwise clean area 1,000 miles from where they were picked up.

And the cleaning spree should not end with the truck and kennels. Our vests and clothing can trap a terrifying number of seeds. When was the last time you check your hunting vest pockets for seeds? Hundreds of grass seeds can gather in vest pockets as we traverse the prairies. Dog vests can capture a number of species as well, like bur chervil (Anthriscus caucalis), which wreaks havoc on native grasses and even competes with yellow starthistle (Centaurea solstitialis) in the arid west.

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⇑⇑ A water bottle pocket of my hunting vest captures many seeds and plant debris ⇑⇑

Conservation and habitat management are influenced by each and every one of us. Its your duty as an uplander to exercise your stewardship abilities and battle the spread of invasive species. The future of our public natural resources and habitat depend on it.

Think Pink for Silver Salmon on the Fly

Doing your homework prior to a salmon fishing destination trip to Alaska can help cut out the guess work and manage expectations. In this post, I present some key information from an epic experience that will put you on silver (coho) salmon on the fly. The best advice? Think pink!

Read the full post here at Anger Pros.

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