Download - Quagga Mussel Incident Susan Ellis California Department of Fish and Game September 13, 2007
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Quagga MusselIncident
Susan EllisCalifornia Department of Fish and
Game
September 13, 2007
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Natural History
• Freshwater species
• Native to Ukraine and Russia
• A form of zebra mussels (Genus Dreissena)
• Came to U.S. in late 1980’s (ballast water?)
• Very prolific: 1 million eggs/year
• Larvae free-swimming
• Adults can live at least a week out of water
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California Concerns• Spread readily –
Vessels/Trailers/Water
• Environmental damage.
• Economic impacts.
• Eradication from Colorado River system unlikely.
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What’s At Risk?
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Dreissenid Mussel Range 1988
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Range in 1998
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Range February, 2007
Zebra mussel
Quagga mussel
Zebra mussel on boat trailers
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Quagga Mussel in California
• Colorado River • Lake Havasu
• Grass Bay, south of the Havasu Landing Resort
• Parker Dam
• South of Parker Dam
• Colorado River Aqueduct – 242 miles of the system
• Lake Skinner, Riverside County
• Lake Mathews, Riverside County
• San Vicente Reservoir, San Diego County
• Dixon Lake, San Diego County
• Lower Otay Reservoir, San Diego County
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Quagga Mussel in the West
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Incident Overview• Invasive aquatic species
• Discovered in Lake Mead on January 6, 2007
• Formed an Incident Command, developed coordinated response and appropriated state resources
• Found at Lake Mohave, Lake Havasu, MWD diversion intake structure
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California Response
• Unified response using incident command system
• Agencies involved: Fish & Game, Water Resources, Food & Agriculture, Boating & Waterways, US Fish & Wildlife Service, Metropolitan Water District, City of San Diego
• Coordination with multi-state quagga mussel team for Lake Mead incident
• Governor appropriated deficiency >$2m for FY2006-7 and >$5.4m in FY2007-08
• Legislation pending – AB1683 Wolk
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Incident Command Structure
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California Actions – Surveys
• Dive Surveys - Lower Colorado River and inland waters in southern California.
• Surface Surveys - all high priority waterbodies in the state.
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California Actions – Inspections
24/7 inspections at CDFA Border Protection Stations (BPS) at Yermo, Needles, Vidal Jct. and Truckee
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CDFA Border Protection Stations
As of August 26, 2007:
59,241 boats checked
6,412 boats needing cleaning
50 confirmed Dreissenid mussel
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CDFA / BPS – Watercraft Inspections by Week
Watercraft Inspections at Yermo, Needles, and Vidal February 1 - August 4, 2007 (27 Weeks)
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Ins
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CDFA / BPS – Watercraft Inspection by Day
Average Boat Inspections per Day by Station February 1 - August 4, 2007 (27 Weeks)
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CDFA / BPS – Watercraft in Need of Draining and/or
Cleaning
Percentage of Vessels Drained or Cleaned atYermo, Needles, and Vidal (27 Weeks)
0.00%2.00%4.00%6.00%8.00%
10.00%12.00%14.00%16.00%18.00%
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Cleaned
Trend
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California Actions – Outreach
Public information and education
Hotline 1 (866) 440-9530
Webpage http://www.dfg.ca.gov/quaggamussel/
•Boater information
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Ongoing Efforts• Scientific Advisory
Panel
• Outreach and training
• Multi-agency coordination
• Continued inspection, interdiction
• On-going sampling
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Contact Information
Hotline 1 (866) 440-9530
Webpage http://www.dfg.ca.gov/quaggamussel/
DFG ContactSusan Ellis, Invasive Species
[email protected](916) 653-8983