Author Archives: flatherc

Chinook salmon (Oncorhynchus tshawytscha)

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Chinook salmon

The Chinook salmon is an important keystone species for the U.S. Pacific Northwest. It is a vital food source for a diversity of wildlife, including orca whales, bears, seals, and large birds of prey.

Chinook salmon is prized by people who harvest salmon both commercially and for sport. Chinook are the largest Pacific salmon species.

Big guys

On average, these fish are 3 feet long and weigh approximately 30 pounds. Some individuals can grow to over 5 feet long and 110 pounds!

Chinook salmon live about three to seven years. Juvenile salmon stay in freshwater habitat for the first year or so, before moving to the estuaries and then the open ocean. Estuaries provide a lot of food and nutrients to the developing salmon.

Return to breed

The fish spend approximately two to four years feeding in the ocean before returning to the spawning grounds to breed and die.

Endangered

The Chinook Salmon is on the U.S. Endangered Species List. The Sacramento River winter-run population in California is classified as endangered wherever it is found.

Other naturally spawned populations in California, Idaho, Oregon, and Washington are classified as threatened. Why the Chinook and other Pacific Northwest salmon have declined is no mystery.

4 H’s

The causes are known as “the four H’s”: harvest, habitat, hatcheries, and hydroelectric power.

Harvest refers to the overfishing by commercial fishing interests.

Habitat refers to degradation of a species home range, usually by pollutants. Another example would be increases in water sediments making a stream uninhabitable by the salmon or their eggs.

Captive-bred hatchery fish, released in the waterways used by native fish, compete and interbreed with the natives and weaken their stocks.

Hydroelectric dams have had perhaps the largest impact, blocking migration routes. Flood control and power generation were the original goals of these dams, rather than fish. As such, the dam construction changed the quality, quantity, rate of flow, temperature of the water, and species mix in rivers, lakes, and tributary streams.

Protection of Chinook salmon is crucial to maintain healthy Pacific Northwest ecosystems and to provide a delicious food source for years to come. 

Myrtlewood (Umbellularia californica)

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Myrtlewood tree (Umbellularia californica)

The Myrtlewood Tree is a very special broadleaf hardwood which is also an evergreen species.  This is not to be confused with the Pacific Myrtle shrub which also grows along the coast.

The Myrtlewood tree grows to heights of 60 to 120 feet, growing at a slow pace of 1- to 12-inches during each of its first few years of life.   At this pace, the Myrtlewood tree may take from 80 to 120 years to reach its full size.

Range

The range of Myrtlewood tree, also known as the California-laurel, extends from Reedsport, Oregon to San Diego, California within 160 miles of the Pacific Ocean. 

Myrtlewood comes in a wide variety of colors and is well-known for being one of the world’s most beautiful woods. The colors that appear are often a result of the minerals in the soil where it grows.

Products

Making furniture, home decor and other gifts out of the Myrtlewood tree became popular in the early 1900s and has continued ever since. Woodworkers in Oregon love working with the wood because of the beauty and many types of finishes it provides.

In addition to being appreciated by humans, Myrtlewood provides food and cover for various animals. Its seeds are an important food source for squirrels, woodrats, mice, and birds. Deer browse young shoots during the summer.

Good as gold

There is a very interesting story about Myrtlewood back in 1933. “The Oregon town where money grows on trees and wood is as good as cash” describes how the wood was used as money on the Oregon coast. See https://www.opb.org/artsandlife/series/history/myrtlewood-money-north-bend-oregon-great-depression/ for more details.

When visiting the southern coast of Oregon be sure to stop in one of the “Myrtlewood Factories” that sell Myrtlewood products. Some even give tours of wood working operations.

Take the opportunity to experience walking through Myrtlewood trees yourself at forest trails and roadside parks near the southern Oregon coast.

American crow (Corvus brachyrhynchos)

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American crow (Corvus brachyrhynchos)

The American crow, the more you know about them the more interesting they are. Crows are a large, intelligent, all-black bird with a hoarse, cawing voice that is familiar over much the continent.

They are common sights in treetops, fields, and roadsides, and in habitats ranging from open woods and empty beaches to town centers. These birds are inquisitive, somewhat mischievous, and good learners and problem-solvers.

They usually feed on the ground and eat almost anything, including earthworms, insects and other small animals, seeds, and fruit as well as garbage and chicks they rob from nests.

Communal Roosting 

American crows are very social, sometimes forming flocks in the thousands. In the winter, American crows congregate in larger numbers to sleep in communal roosts.

Roosts can consist of a few hundred up to two million crows. Some roosts have been forming in the same general area for well over 100 years. 

Mobbing

American crows will work together as a group to harass or drive off predators, a behavior known as mobbing. This interesting video features a crow solving 8 puzzles in a row in order to reach food.

The crow has also been the subject of Native American legends, including this one: http://nativeamericans.mrdonn.org/stories/raven.html