MANAGING WITH STOCKED TROUT AFM Rick Lorson Under Construction
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Transcript of MANAGING WITH STOCKED TROUT AFM Rick Lorson Under Construction
![Page 1: MANAGING WITH STOCKED TROUT AFM Rick Lorson Under Construction](https://reader036.fdocuments.net/reader036/viewer/2022081508/568137fa550346895d9fbdb5/html5/thumbnails/1.jpg)
MANAGING WITH MANAGING WITH STOCKED TROUTSTOCKED TROUT
AFM Rick LorsonUnder Construction
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Stocked Trout Program Elements:
• Over 4 Million Adult Trout
• 8 Million Angler Trips *
• $250 Million Angler Dollars *
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Other Program Elements:
• 1.2 Million Cooperative Nursery Program Adult Trout
• 1.1 Million Fingerling Trout
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Presentation Purpose:
Where and How Many Trout Stocked?
How we Evaluate Stocked Trout Program.
Actual Stocked Trout Angler Use.
Streams will be covered first, then Lakes.
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Adult Trout are Stocked in over 4,400 Stream Miles
• How Many Trout should be Stocked in each Stream?
Harrisburg, PA
Phoenix, AZ
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Stocked Trout Streams Are Categorized By:
• Wild Trout Population• Stream Bank Ownership• Human Population Density• Average Width• Access By Roads• Amount Of Vehicle Parking
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Mountain Stream
Valley River
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Mountain Stream
Valley River
Wild Trout
Smallmouth Bass
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Stocking Rates For Streams
• Public Stream 400/Acre
• Urban Stream 350/Acre• Suburban Stream 235/Acre• Rural Stream 125/Acre
• Small River 100/Acre• Large River 75/Acre
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Wild Trout >< Stocked Trout
2020 Legal Wild Brook Trout per Mile
9090 Legal Wild Brown Trout per Mile
1,1101,110 Legal Stocked Trout per Legal Stocked Trout per Mile- Public Streams CategoryMile- Public Streams Category
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Miles Stocked By Category:
• Rural Streams 2,435 miles (55%)
• Suburban Streams 652 miles (15%)
• Public Streams 462 miles (10%)
• Urban Streams 283 miles (6%)
• Small Rivers 227 miles (5%)
• Large Rivers 208 miles (5%)
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How Do We Evaluate Our Trout
Stocking Program?
How Do We Evaluate Our Trout Stocking Program?
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Performance MeasuresPerformance Measures
-Angler Effort
-Angler Catch *
-Angler Trips Produced
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Rank each Performance Measure from Lowest to Highest to obtain:
ANGLER EFFORT ANGLER CATC H TRIPS PRODUCED
COM BINED RAN K
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Some Other
Categories
for Streams
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TROUT STOCKING IN LAKES
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Adult Trout are Stocked in 117 Lakes
• How Many Trout should be Stocked in each Lake?
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Lakes Are Categorized By:
• Lake Size
• Human Population Density-- For The Lake Itself-- For The Surrounding Area
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Stocking Rates For Lakes
Very Small Lakes 600/Acre
Small Lakes 325/Acre
Medium Lakes 150/Acre
Large Lakes 75/Acre
Very Large Lakes 5/Acre
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Stocked Trout Program
Stream and Lake Summaries
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The Three Top Ranked Categories for Performance
Measures were:
Delayed HarvestPublic StreamsVery Small Lakes
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Angler Trips on Streams were Considerably Higher for the Opening Week Compared to the Week Following an Inseason Stocking.
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Trout Catch on Streams was Higher for the Week Following an Inseason Stocking Compared to the Opening Week.
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Total Angler Trips for a Stream Stocking Category Statewide was Highest for Rural Streams.
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