2008 Statewide Strategic Plan for Eurasian Watermilfoil in Idaho
2008 Statewide Strategic Plan for Eurasian Watermilfoil in Idaho
2008 Statewide Strategic Plan for Eurasian Watermilfoil in Idaho
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A <strong>Statewide</strong> <strong>Strategic</strong> <strong>Plan</strong> <strong>for</strong><br />
<strong>Eurasian</strong> <strong>Watermilfoil</strong> <strong>in</strong> <strong>Idaho</strong><br />
I. Introduction..................................................................................................................................4<br />
II. Problem Statement.....................................................................................................................4<br />
III. Goals...........................................................................................................................................5<br />
IV. Objectives..................................................................................................................................5<br />
V. <strong>Idaho</strong> <strong>Eurasian</strong> <strong>Watermilfoil</strong> Peer Panel Recommendations.................................................6<br />
A. General.................................................................................................................................................. 6<br />
B. Program organization........................................................................................................................ 7<br />
C. Fund<strong>in</strong>g ................................................................................................................................................. 8<br />
D. Regulatory and Permitt<strong>in</strong>g ............................................................................................................... 8<br />
E. Research Needs .................................................................................................................................. 8<br />
F. Agency and Public Education Needs ............................................................................................ 8<br />
G. Proposed Legislation ........................................................................................................................ 9<br />
VI. <strong>Idaho</strong>’s Regionalized Management Approach .......................................................................9<br />
A. North <strong>Idaho</strong> ........................................................................................................................................ 10<br />
1. Goal: Prevent <strong>Eurasian</strong> watermilfoil from establish<strong>in</strong>g <strong>in</strong> water bodies where it does<br />
not currently occur (Prevention) ................................................................................................... 11<br />
2. Goal: Conta<strong>in</strong> <strong>Eurasian</strong> watermilfoil so that it does not spread beyond the area it<br />
currently covers with<strong>in</strong> water bodies where it does occur (Conta<strong>in</strong>ment)......................... 11<br />
3. Goal: Eradicate <strong>Eurasian</strong> watermilfoil from water bodies where it does occur<br />
(Eradication)........................................................................................................................................ 11<br />
4. Goal: Maximize and measure control technology effectiveness (Eradication)............. 12<br />
B. Southwest <strong>Idaho</strong>............................................................................................................................... 12<br />
1. Goal: Prevent <strong>Eurasian</strong> watermilfoil from establish<strong>in</strong>g <strong>in</strong> water bodies where it does<br />
not currently occur (Prevention) ................................................................................................... 12<br />
2. Goal: Conta<strong>in</strong> <strong>Eurasian</strong> watermilfoil so that it does not spread beyond the area it<br />
currently covers <strong>in</strong> water bodies where does occur (Conta<strong>in</strong>ment) .................................... 13<br />
3. Goal: Eradicate <strong>Eurasian</strong> watermilfoil from water bodies where it does occur<br />
(Eradication)........................................................................................................................................ 13<br />
4. Goal: Maximize and measure control technology effectiveness (Eradication)............. 13<br />
C. East <strong>Idaho</strong>........................................................................................................................................... 13<br />
1. Goal: Prevent <strong>Eurasian</strong> watermilfoil from establish<strong>in</strong>g <strong>in</strong> Eastern <strong>Idaho</strong> (Prevention)<br />
................................................................................................................................................................ 14<br />
VII. <strong>Eurasian</strong> <strong>Watermilfoil</strong> Technical Background ....................................................................14<br />
A. Distribution ........................................................................................................................................ 14<br />
B. Description......................................................................................................................................... 16<br />
C. Habitat ................................................................................................................................................. 17<br />
D. Reproduction..................................................................................................................................... 17<br />
E. Growth and Development............................................................................................................... 18<br />
F. Economic Importance...................................................................................................................... 18<br />
G. Taxonomy........................................................................................................................................... 19<br />
H. Proposed and Enacted Laws......................................................................................................... 19<br />
VIII. <strong>Eurasian</strong> <strong>Watermilfoil</strong> Survey <strong>for</strong> <strong>Idaho</strong>..............................................................................20<br />
A. ISDA Aquatic <strong>Plan</strong>t Sampl<strong>in</strong>g Protocols .................................................................................... 21<br />
1. Littoral Survey................................................................................................................................22<br />
2. Po<strong>in</strong>t Intercept Survey ................................................................................................................. 23<br />
IX. <strong>Eurasian</strong> <strong>Watermilfoil</strong> Management Techniques Available <strong>in</strong> <strong>Idaho</strong> .................................26<br />
A. No Action Alternative ...................................................................................................................... 26<br />
B. Physical Controls ............................................................................................................................. 26<br />
1. Water level drawdown.................................................................................................................. 26<br />
2. Bottom barrier................................................................................................................................27<br />
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