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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. Current Topics. Federally-Endangered Pallid Sturgeon Threats?.

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Envirothon 2012 Fisheries

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  1. Envirothon 2012 Fisheries What is fisheries management Current Topics Understanding streams Using a dichotomous fish key

  2. Fisheries Management in Missouri People – Fish - Habitat

  3. Current Topics Federally-Endangered Pallid Sturgeon Threats?

  4. Similarity of Appearance Ruling (SOA)A Huge Change in Plans! 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

  5. Current Topics Ozark Hellbender Listing (Federally Endangered)

  6. Current Topics Threats to Ozark hellbenders Chytrid fungus Siltation Water quality

  7. Current Topics Asian carp

  8. 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

  9. Current Topics Aquatic organism passage (aop)

  10. Three types of streams where AOP applies. Ephemeral Intermittent Perennial Review Conservationist Article!

  11. Understanding Streams Watershed Floodplain Riparian corridor channel

  12. Understanding Streams Watershed Floodplain Riparian corridor channel

  13. A Healthy Channel is Sinuous Channel

  14. = 10 MILES 620 ft 590 ft

  15. A C = 5 MILES 620 ft 590 ft

  16. Gradient Velocity Gradient = 3 ft per Mile 620 ft 590 ft 10 MILES 620 ft Gradient = 6 ft per Mile 590 ft 5 MILES

  17. Headcut Erosion Upstream

  18. Deposition Downstream

  19. Understanding Streams Watershed Floodplain Riparian corridor channel

  20. Understanding Streams Watershed Floodplain Riparian corridor channel

  21. 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.

  22. 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.

  23. 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.

  24. Questions?

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