Geog 360:  Watershed Science and Policy, Spring 2001, University of Oregon

Habitat Gallery 
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The pictures below were taken in a section of Camp Creek (approx. 1 km), a tributary to the Umpqua River, in the Oregon Coast Range. This section of the river is just above a falls that serves as a major barrier to anadromous salmonids. However, resident coastal cutthroat trout (Oncorhyncus clarki clarki) and sculpin (Cottus spp.) are found in the stream. Photos are presented in an upstream-downstream order. All photos by Patrick Hurley.
A Dunn's salamander (Plethodon dunni). These woodland salamanders are found in close proximity to the stream channel, often in the 'splash zone' or near seeps where they are kept cool and moist. They prefer to hide under larger rocks (cobbles) or woody debris. The individual pictured here is approximately six inches long. [yes, this is a posed picture.]
A small meander bend several hundred meters downstream. Note the wood in the channel just above the the riffle section (white water) as well as the gravel bar on the left side. The beginning of a pool is visible in the lower right corner. In addition, notice the development of an undercut bank below the ferns in the same portion of the photo.
Another common salamander found in Camp Creek is the Pacific giant salamander (Dicamptodon tenebrosus). They can reach lengths of over 12 inches. Like most salamanders, this species prefers cool, moist forest conditions. They also spend a fair amount of time in streams. This juvenile (only 4 inches in length) was captured in a riffle section, and released shortly thereafter.
Researchers use several means to collect data on stream fishes. Among the most common methods is the use of an electroshocker. The technician with the shocker strapped on walks up the stream while dropping a wire into the stream, delivering a small amount of current into the water. The electricity shocks fish in the general vicinity. A second (or third) field worker follows with a net to scoop up the shocked fish, which floats to the surface.

Researchers also use dry suits to snorkel portions of stream and count fish. Generally a second field work follows and records the results of the count. 

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Last update:  02/12/07 10:45 PM
Department of Geography, University of Oregon, Eugene OR, 97403-1251