My WebLink
|
Help
|
About
|
Sign Out
Home
Browse
Search
7618
CWCB
>
UCREFRP
>
Public
>
7618
Metadata
Thumbnails
Annotations
Entry Properties
Last modified
7/14/2009 5:02:30 PM
Creation date
5/20/2009 3:43:19 PM
Metadata
Fields
Template:
UCREFRP
UCREFRP Catalog Number
7618
Author
Rose, K. L. and D. R. Hann.
Title
Summary of Historic Habitat Modeling on the Yampa River Using the Physical Habitat Simulation System
USFW Year
1989.
USFW - Doc Type
Final Report.
Copyright Material
NO
There are no annotations on this page.
Document management portal powered by Laserfiche WebLink 9 © 1998-2015
Laserfiche.
All rights reserved.
/
42
PDF
Print
Pages to print
Enter page numbers and/or page ranges separated by commas. For example, 1,3,5-12.
After downloading, print the document using a PDF reader (e.g. Adobe Reader).
Show annotations
View images
View plain text
<br />.. <br /> <br />Attachment 1 <br /> <br />(From Valdez et.al. 1987) <br /> <br />In addition to agreeing on the 18 curve sets, and providing qualifiers and <br />constraints for each, the experts developed a 'General Habitat Constraint' to be <br />applied to curves. This constraint was developed because the experts noted that <br />certain habitats (see items 1 and 2 below) cannot be modeled by IFIM without <br />intensive data collection efforts. Other workshop participants, with recognized <br />expertise in IFIM, stated that these habitats can be modeled, but have not been <br />modeled to date. Nevertheless, the experts decided that a curve set should not be <br />used with current PHABSIM analysis if it meets anyone of the following three <br />conditions: <br /> <br />1. 25 percent or more of data for the curve came from backwaters, <br />concavities, isolated pools, embayments, and gravel pits; or <br /> <br />2. 50 percent or more of the data came from eddies; or <br /> <br />3. 60 percent or more of the data came from a combination of items 1 and 2 <br />above. <br /> <br />To aid the user of this document in determining which curve sets the experts <br />recommend not using, because of the General Habitat Constraint, a habitat histogram <br />is presented for each curve set. This histogram and associated documentation reveal <br />the distribution and percentage of habitat types from which the depth, velocity, and <br />substrate data originated (i.e. in curve set 1, of all the habitats sampled, 88.94% <br />of the fish were collected in backwaters). Conditions 1 or 2 of this constraint <br />apply to 8 of the 18 final HSI curve sets. This means that the species experts do <br />not recommend using the indicated 8 curve sets with current PHABSIM analysis. <br /> <br />A.I.I <br />
The URL can be used to link to this page
Your browser does not support the video tag.