Envirothon 2012 Fisheries WHAT IS FISHERIES MANAGEMENT CURRENT TOPICS UNDERSTANDING STREAMS USING A...
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Envirothon 2012 Fisheries WHAT IS FISHERIES MANAGEMENT CURRENT TOPICS UNDERSTANDING STREAMS USING A DICHOTOMOUS FISH KEY
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Transcript of Envirothon 2012 Fisheries WHAT IS FISHERIES MANAGEMENT CURRENT TOPICS UNDERSTANDING STREAMS USING A...
Envirothon 2012 Fisheries
WHAT IS FISHERIES MANAGEMENT
CURRENT TOPICS
UNDERSTANDING STREAMS
USING A DICHOTOMOUS FISH KEY
Fisheries Management in
Missouri
PEOPLE – FISH - HABITAT
FEDERALLY-ENDANGEREDPALLID STURGEON
THREATS?
Current Topics
OCTOBER 1, 2010 – USFWS LISTED SHOVELNOSE STURGEON AS THREATENED NATIONWIDE, DUE TO
ITS SIMILARITY OF APPEARANCE WITH PALLID STURGEON
OCTOBER 1, 2010 – USFWS ALSO ENACTED A NATIONWIDE SPECIAL RULE THAT PROHIBITS
COMMERCIAL FISHING FOR SHOVELNOSE STURGEON – IN MISSOURI THIS INCLUDES THE ENTIRE MISSOURI RIVER AND THE MISSISSIPPI
RIVER DOWNSTREAM OF MEL PRICE L&D
Similarity of Appearance Ruling (SOA)
A Huge Change in Plans!
OZARK HELLBENDER LISTING
(FEDERALLY ENDANGERED)
Current Topics
THREATS TO OZARK HELLBENDERS
CHYTRID FUNGUSSILTATION
WATER QUALITY
Current Topics
ASIAN CARP
Current Topics
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
AQUATIC ORGANISM PASSAGE (AOP)
Current Topics
EPHEMERALINTERMITTENT
PERENNIAL
REVIEW CONSERVATIONIST ARTICLE!
Three types of streams where AOP applies.
WATERSHEDFLOODPLAIN
RIPARIAN CORRIDORCHANNEL
Understanding Streams
WATERSHEDFLOODPLAIN
RIPARIAN CORRIDORCHANNEL
Understanding Streams
A Healthy Channel is Sinuous Channel
= 10 MILES
620 ft
590 ft
C A
= 5 MILES
620 ft
590 ft
Gradient Velocity
620 ft
590 ft
10 MILES
620 ft
590 ft
5 MILES
Gradient = 3 ft per Mile
Gradient = 6 ft per Mile
Headcut Erosion Upstream
Deposition Downstream
WATERSHEDFLOODPLAIN
RIPARIAN CORRIDORCHANNEL
Understanding Streams
WATERSHEDFLOODPLAIN
RIPARIAN CORRIDORCHANNEL
Understanding Streams
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.
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.
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.
