Profiles: Ingle

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Profiles Ingles PondChemistry and Bathymetry

• (x) group III
• Brad Malone
• Justin Smith
• Colter Smart
• Katherine Teater

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Background

• Pond located south of Kendrick
• Built 1995-1996
• 2-3 acres
• Deepest near dam
• 14-16 ft.
• 100 dump truck loads taken out after filled in
  with sediment and vegetation
• 1st stocking
• 1500 rainbow trout
• 50 largemouth bass
• 50 breeding bluegill
• 2nd stocking
• 500 rainbow trout
• 250 catfish
• 50 Smallmouth bass
• 250 bullfrog tadpoles

www.marinebiochemists.com/stocking.html
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Objectives

• Physical profiles
• Temperature (C)
• Dissolved O2
• pH
• Light irradiance
• Conductivity,
• Chlorophyll a
• Total Phosphorous
• (TP)
• Bathometric Map
• Determine why fish stocks are declining
• Using Physical and Biological Characteristics

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Methods
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Methods

• At each site
• Secchi depth
• 0.3 m
• YSI MPS-556 (O2, C, pH, conductivity)
• ½ meter
• Van Dorn Bottle (TP and Chl a)
• 1 meter
• Light meter
• ½ meter
• GPS/depth finder (bathometric map)

Secchi Disk
Light Meter
Van Dorn Bottle
Multi-meter
Methods referenced at class website
http//www.cnr.uidaho.edu/fish415/
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Results
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Temperature, O2, pH
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Light Profile
Extinction Coefficient 5.46
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Light Profile

• Reservoir Coefficient Photic Zone
• -Dworshak .24 18.8
  m
• -Spring Valley 1.08 2.47
  m
• -Ingles Pond 5.46 .84
  m

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Total Phosphorous
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Chl a
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Bathometric Map
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How relates to fish

• Rainbow Trout (Oncorhynchus mykiss)
• Bluegill (Lepomis macrochirus)
• Largemouth Bass (Micropterus salmoides)
• Added
• Smallmouth Bass
• Catfish
• Bullfrog
• More RBT

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Living Conditions of Fish

• Largemouth bass
• 10-32 ºC
• pH 7 8
• Small-mouth bass
• 10 ºC 30 ºC (consistently)
• Clearer/cooler water than the largemouth
• Bluegill
• 1-36 ºC
• pH 7-8
• Rainbow Trout
• 10-24 ºC, prefers 12 ºC

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Summary Outline

• Problems
• Temperature seasonal variation
• pH out of range
• Not enough light
• Habitat not conducive to spawning

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Summary Outline

• Problems
• Summer stratification
• Aerators acting as nutrient pump
• Habitat not conducive to spawning
• Hypothesis
• Wrong type of phytoplankton for zooplankton
  growth
• Fish predation too high on zooplankton

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• Questions?