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KRIS Humboldt Bay: Map Page

Area Arcata
Topic Map: L. Fish Distribution, Arcata Sub-basin
 To view a more detailed version of this map click here
This is a map shows the distribution of salmonids in the Arcata sub-basin. Chinook and steelhead distribution were obtained from NOAA. Potential coho habitat was calculated from stream gradient. Gradients less than or equal to 4 percent from the outflow were selected and saved. Any gradient steeper than 4% served as a cutoff for any further potential migration up stream. These data are preliminary only, and were produced with the understanding that coho salmon are able to leap greater than 4% for short distances. Therefore, the data are considered conservative estimates.

 To view metadata about a map layer, click on a link in the table below.
Name of Layer in Map LegendMetadata File Name
Project Outline Unavailable
Sub Basins with Labels subbasins.shp.txt
Humboldt Bay Unavailable
Potential Coho Habitat Based on Stream Gradient coho_hab.shp.txt
Chinook Distribition (NOAA) cc_chin_distribution_08_2005_utm.shp.txt
Steelhead Distribution (NOAA) nc_steelhead_distribution_08_2005_utm.shp.txt
Gray Hillshade (30 meter Resolution) [TIFF] grayshade30m.tif.txt
Pacific Ocean Unavailable
State of California Unavailable

If you obtain KRIS on a CD and install it on your hard drive as a desktop program, you will have access to increased map capabilities such as zooming in/out, turning layers on/off, adding layers and changing legends.