Envirothon 2012 Fisheries
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Transcript of Envirothon 2012 Fisheries
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Envirothon 2012 Fisheries
WHAT IS FISHERIES MANAGEMENT
CURRENT TOPICS
UNDERSTANDING STREAMS
USING A DICHOTOMOUS FISH KEY
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Fisheries Management in
Missouri
PEOPLE – FISH - HABITAT
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FEDERALLY-ENDANGEREDPALLID STURGEON
THREATS?
Current Topics
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IDENTIFY SOME OF THE THREATS TO THE PALLID
STURGEON IN MISSOURI’S RIVERS
Current Topics
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ASIAN CARP
Current Topics
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FILTER FEEDING BY ASIAN CARP IS A THREAT TO NATIVE SPECIES, INCLUDING: PADDLEFISH,BIGMOUTH BUFFALO, GIZZARD SHAD AND LARVAE AND JUVENILES OF ALL SPECIES
Current Topics
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THINK OF SOME WAYS WE COULD CONTROL EXPLODING POPULATIONS
OF ASIAN CARP ON MISSOURI’S RIVERS.
Current Topics
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FEDERALLY-ENDANGERED
TOPEKA SHINER
INFO AT: MDC.MO.GOV/NODE/5165
Current Topics
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TOPEKA SHINERS ARE FOUND IN PRAIRIE
STREAMS OF CENTRAL MISSOURI
Current Topics
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DUE TO HABITAT DEGRADATION ONLY
TWO TOPEKA SHINER POPULATIONS REMAIN
IN MISSOURI
Current Topics
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WHY HAVE TOPEKA SHINERS BEEN IN SUCH A
SEVERE DECLINE?I N T E N S I V E R O W C R O P P R O D U C T I O NI N C R E A S E D U R B A N I Z AT I O NC O M P E T I T I O N F R O M O T H E R S P E C I E SM O R E W I D E S P R E A D U S E O F P E S T I C I D E SF R A G M E N TAT I O N O F H A B I TATT R I B U TA R Y I M P O U N D M E N TH I G H WAY C O N S T R U C T I O N
Current Topics
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HOW CAN WE RECOVER TOPEKA SHINERS?
BY USING BEST MANAGEMENT PRACTICES IN WATERSHEDS WHERE TOPEKA SHINERS ARE HISTORICALLY LOCATED. TRY TO COME UP WITH SOME GOOD EXAMPLES OF THESE PRACTICES.
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TOPEKA SHINER RECOVERY PLAN CAN BE FOUND AT:
MDC.MO.GOV/NODE/5165
Current Topics
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WATERSHEDFLOODPLAIN
RIPARIAN CORRIDORCHANNEL
Understanding Streams
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WATERSHEDFLOODPLAIN
RIPARIAN CORRIDORCHANNEL
Understanding Streams
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A Healthy Channel is Sinuous Channel
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= 10 MILES
620 ft
590 ft
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C A
= 5 MILES
620 ft
590 ft
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Gradient Velocity
620 ft
590 ft
10 MILES
620 ft
590 ft
5 MILES
Gradient = 3 ft per Mile
Gradient = 6 ft per Mile
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Headcut Erosion Upstream
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Deposition Downstream
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WATERSHEDFLOODPLAIN
RIPARIAN CORRIDORCHANNEL
Understanding Streams
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WATERSHEDFLOODPLAIN
RIPARIAN CORRIDORCHANNEL
Understanding Streams
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Missouri Fish Identification
A dichotomous key is a tool used to ID trees, wildflowers, mammals, reptiles, rocks, and fish. "Dichotomous" means "divided into two parts.” Therefore, dichotomous keys always give two choices in each step.
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Start With Family
Begin at beginning.Need to use glossary for
definitions. One bad guess and you lose.Ex. Pectoral and pelvic fins
absent, Lampreys Go to page 38.
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On To Genus
Need to use pictures of anatomy. One bad guess and you lose.Ex. Eyes developed; Dorsal fin divided
into two distinct parts - go to page step 6.
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