My WebLink
|
Help
|
About
|
Sign Out
Home
Browse
Search
7800
CWCB
>
UCREFRP
>
Public
>
7800
Metadata
Thumbnails
Annotations
Entry Properties
Last modified
7/14/2009 5:02:31 PM
Creation date
5/20/2009 10:09:09 AM
Metadata
Fields
Template:
UCREFRP
UCREFRP Catalog Number
7800
Author
Burdick, B. D.
Title
Conceptual Management Plan for Habitat Enhancement in Flooded Bottomlands, Gravel Pit at 29-5/8 Road, Colorado River Near Grand Junction, Colorado.
USFW Year
1994.
USFW - Doc Type
\
Copyright Material
NO
There are no annotations on this page.
Document management portal powered by Laserfiche WebLink 9 © 1998-2015
Laserfiche.
All rights reserved.
/
30
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
t protect private property in bottomlands near population centers and agricultural <br />areas. Local government entities may resist removal of structures that have been <br />' built, maintained, and reinforced after major flood events to protect private as <br />well as public property. Therefore, institutional and social constraints may <br />limit the amount of floodplain that can be reclaimed near population centers. <br />t The river reach adjacent to this gravel pit is important historical habitat <br />for both the razorback sucker and Colorado squawfish. The area has been <br />identified as occupied habitat and recently was designated critical habitat for <br />both razorback sucker and Colorado squawfish by the USFWS (effective 20 April <br />1994; Federal Register, Vol. 59, No. 54, 21 March 1994) under authority of the <br />Endangered Species Act (USFWS 1973). Various researchers (Holden and Stalnaker <br />t 1975; Valdez et al . 1982) documented the historic use of this area by adult <br />Colorado squawfish and razorback sucker. Osmundson and Kaeding (1989) recently <br />documented extensive use of the various habitat complexes in the area by adult <br />Colorado squawfish that were created following the high water years of 1983 and <br />' 1984. <br />' Objectives/Purpose <br />Habitat development and enhancement is identified as one of the five <br />principal elements of the Recovery Program (USFWS 1987). The general objectives <br />of this plan are, 1) to restore razorback sucker and other endangered fishes in <br />the Colorado River in the Grand Valley, and 2) to restore connectivity of the <br />former floodplain to the river as habitat for the endangered fishes. Habitat <br />restoration of the gravel pit site described in this conceptual management plan <br />will provide food that should increase survival of larval and juvenile endangered <br />fishes as well as provide resting and feeding areas for adults. Before razorback <br />' sucker are reintroduced into historical reaches of the Colorado River near Grand <br />Junction, reconnecting the river with bottomlands is essential. One site by <br />itself will probably not be sufficient to establish and maintain self-sustaining <br />populations of endangered fishes. Thus, additional bottomland sites will need <br />' to be identified and developed to provide a series or "network" of off-channel <br />habitats. <br />' The specific purpose of this plan is to describe proposed habitat <br />restoration of a gravel-pit adjacent to the Colorado River mainstem near Grand <br />Junction for adult razorback sucker and Colorado squawfish. The restoration <br />strategy is to connect this gravel pit to the mainstem river that will provide <br />access to riverine razorback sucker and Colorado squawfish. Specifically, this <br />connected pond will be compared to another pond in the immediate area that is <br />presently connected to the river and is gently graded or sloped toward the river. <br />' It has been hypothesized (Valdez and Wick 1983) that graded gravel pits that <br />flood during runoff and drain with descending flow may benefit razorback sucker <br />and Colorado squawfish by providing feeding, resting, conditioning, and possibly <br />' spawning areas while minimizing the potential proliferation of piscivorous non- <br />native fishes. <br /> <br /> <br />
The URL can be used to link to this page
Your browser does not support the video tag.