THE WORLDWIDE AQUATIC NUISANCE SPECIES CRISIS AND ITS EFFECTS ON COLORADO

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THE WORLDWIDE AQUATIC NUISANCE SPECIES CRISIS AND
ITS EFFECTS ON COLORADO
ZEBRA MUSSELS
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INVASIVE AQUATIC WEEDS
EURASIAN WATER MILFOIL
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NEW ZEALAND MUDSNAIL
ZEBRA MUSSEL
INVASIVE MOLLUSKS
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SOME INTERNATIONAL ANS INVASION ROUTES
PONTO-CASPIAN ROUTE (GREAT LAKES NZMS CLONE AND
ZEBRA/QUAGGA MUSSELS)
WESTERN CLONE OF NZMS (DIRECT)
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DOMESTIC INVASION ROUTES OF THE ZEBRA AND QUAGGA
MUSSELS
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ZEBRA/QUAGGA MUSSEL LIFE HISTORY
byssal threads
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ECOLOGICAL DAMAGE FROM ZEBRA/QUAGGA MUSSELS THE
CHANGES ARE PERMANENT
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NATURAL ENEMIES OF ZEBRA AND QUAGGA MUSSELS
PUMPKINSEED
LONG-TAILED DUCK
LESSER SCAUP
FRESHWATER DRUM
CHANNEL CATFISH
COMMON CARP
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INVASIVE CRAYFISH
RUSTY CRAYFISH (Orconectes rusticus)
SIGNAL CRAYFISH (Pacifasticus leniusculus)
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INVASIVE PLANKTONIC CRUSTACEANS
FISH HOOK WATERFLEA (Cercopagis)
SPINY WATERFLEA (Bythotrephes)
SPINY WATERFLEA (Daphnia lumholtzi)
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NORTHERN SNAKEHEAD
BLACK CARP
INVASIVE FISHES
ROUND GOBY
WHITE PERCH
SILVER CARP
NINESPINE STICKLEBACK
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VIGILANTE FISHERY MANAGEMENT TRANSPLANTATION OF
NUISANCE SPECIES BY SELFISH OR IGNORANT CITIZENS
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INVASIVE FISH DISEASES WHIRLING DISEASE
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INVASIVE FISH DISEASES VHS
PERCH AND SMELT VICTIMS OF VIRAL HEMORRHAGIC
SEPTICEMIA VIRUS IN THE GREAT LAKES
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VHS EPIDEMICS IN THE GREAT LAKES AND ST LAWRENCE
RIVER
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• VIRAL HEMORRHAGIC SEPTICEMIA
• CAUSATIVE AGENT IS A RECENTLY MUTATED VIRUS
• DISEASE IS CHARACTERIZED BY EXTENSIVE BLEEDING
  BOTH INSIDE AND OUTSIDE
• ATTACKS MANY SPECIES INCLUDING MOST OF THE
  IMPORTANT COLDWATER AND WARMWATER SPORT FISHES
• LOSSES HAVE EXCEEDED A MILLION FISH IN A SINGLE
  EVENT

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ECONOMIC DAMAGE MACHINERY AND INTAKES
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ECONOMIC DAMAGE TO RECREATION
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ANS AND DISEASE AGENT VECTORS?
CONSTRUCTION EQUIPMENT
FISH STOCKING
WILD CAUGHT AND MIXED SOURCE BAIT FISH
BOATS AND ANGLERS
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POINT SOURCES OF CULTURED FISH (FISH FARMS) CAN
BE INSPECTED FOR ANS AND DISEASES
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BOATS, LIVE WELLS, AND EQUIPMENT CAN BE INSPECTED
AT BOTH THE SOURCE AND THE DESTINATION
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WHAT TO DO ABOUT FREE-RANGING LIVE BAIT?
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COLORADO BAIT DEALERS
COLORADO DEPARTMENT OF AGRICULTURE WILL PERMIT
AND REQUIRE RECORD-KEEPING