envirothon 2012 fisheries

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.