THE WORLDWIDE AQUATIC NUISANCE SPECIES CRISIS AND ITS EFFECTS ON COLORADO - PowerPoint PPT Presentation

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THE WORLDWIDE AQUATIC NUISANCE SPECIES CRISIS AND ITS EFFECTS ON COLORADO

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COMMON CARP. FRESHWATER DRUM. CHANNEL CATFISH. INVASIVE CRAYFISH ... BLACK CARP. NORTHERN SNAKEHEAD. ROUND GOBY. WHITE PERCH. SILVER CARP. NINESPINE STICKLEBACK ... – PowerPoint PPT presentation

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Title: THE WORLDWIDE AQUATIC NUISANCE SPECIES CRISIS AND ITS EFFECTS ON COLORADO


1
THE WORLDWIDE AQUATIC NUISANCE SPECIES CRISIS AND
ITS EFFECTS ON COLORADO
ZEBRA MUSSELS
2
INVASIVE AQUATIC WEEDS
EURASIAN WATER MILFOIL
3
NEW ZEALAND MUDSNAIL
ZEBRA MUSSEL
INVASIVE MOLLUSKS
4
SOME INTERNATIONAL ANS INVASION ROUTES
PONTO-CASPIAN ROUTE (GREAT LAKES NZMS CLONE AND
ZEBRA/QUAGGA MUSSELS)
WESTERN CLONE OF NZMS (DIRECT)
5
DOMESTIC INVASION ROUTES OF THE ZEBRA AND QUAGGA
MUSSELS
6
ZEBRA/QUAGGA MUSSEL LIFE HISTORY
byssal threads
7
ECOLOGICAL DAMAGE FROM ZEBRA/QUAGGA MUSSELS THE
CHANGES ARE PERMANENT
8
NATURAL ENEMIES OF ZEBRA AND QUAGGA MUSSELS
PUMPKINSEED
LONG-TAILED DUCK
LESSER SCAUP
FRESHWATER DRUM
CHANNEL CATFISH
COMMON CARP
9
INVASIVE CRAYFISH
RUSTY CRAYFISH (Orconectes rusticus)
SIGNAL CRAYFISH (Pacifasticus leniusculus)
10
INVASIVE PLANKTONIC CRUSTACEANS
FISH HOOK WATERFLEA (Cercopagis)
SPINY WATERFLEA (Bythotrephes)
SPINY WATERFLEA (Daphnia lumholtzi)
11
NORTHERN SNAKEHEAD
BLACK CARP
INVASIVE FISHES
ROUND GOBY
WHITE PERCH
SILVER CARP
NINESPINE STICKLEBACK
12
VIGILANTE FISHERY MANAGEMENT TRANSPLANTATION OF
NUISANCE SPECIES BY SELFISH OR IGNORANT CITIZENS
13
INVASIVE FISH DISEASES WHIRLING DISEASE
14
(No Transcript)
15
INVASIVE FISH DISEASES VHS
PERCH AND SMELT VICTIMS OF VIRAL HEMORRHAGIC
SEPTICEMIA VIRUS IN THE GREAT LAKES
16
VHS EPIDEMICS IN THE GREAT LAKES AND ST LAWRENCE
RIVER
17
  • 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

18
ECONOMIC DAMAGE MACHINERY AND INTAKES
19
ECONOMIC DAMAGE TO RECREATION
20
ANS AND DISEASE AGENT VECTORS?
CONSTRUCTION EQUIPMENT
FISH STOCKING
WILD CAUGHT AND MIXED SOURCE BAIT FISH
BOATS AND ANGLERS
21
POINT SOURCES OF CULTURED FISH (FISH FARMS) CAN
BE INSPECTED FOR ANS AND DISEASES
22
BOATS, LIVE WELLS, AND EQUIPMENT CAN BE INSPECTED
AT BOTH THE SOURCE AND THE DESTINATION
23
WHAT TO DO ABOUT FREE-RANGING LIVE BAIT?
24
COLORADO BAIT DEALERS
COLORADO DEPARTMENT OF AGRICULTURE WILL PERMIT
AND REQUIRE RECORD-KEEPING
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