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Aquatic Plants
More plants = more diversity Hard to identify Pollution tolerance unknown Record in “Other”
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Assessing life in the stream Aquatic Plants More plants = more - - PowerPoint PPT Presentation
Assessing life in the stream Aquatic Plants More plants = more - - PowerPoint PPT Presentation
Assessing life in the stream Aquatic Plants More plants = more diversity Hard to identify Pollution tolerance unknown Record in Other 2 Aquatic Plants Algae Record in Other Lots of algae = nutrient
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Aquatic Plants
Algae Record in “Other” Lots of algae =
nutrient enrichment
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Benthic Aquatic Macroinvertebrates
Benthic - bottom dwellers Aquatic – live in water Macro - large Invertebrates - without backbone
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Macroinvertebrates
Do not migrate far Easy to collect and identify Known tolerance levels-
“Environmental thermometers”
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Critter Collection
Frequency
No more than 3 times/year Spring, Summer and Fall
Methods:
Collect Sort Identify Record
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Critter Collection
Survey as many micro-habitats as possible!
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Indicator Groups
Group 1 Taxa:
LOW pollution tolerance= Only high quality H2O
Group 2 Taxa:
MEDIUM pollution tolerance = Mid – high quality H2O
Group 3 Taxa:
HIGH pollution tolerance = Low - high quality H2O
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LOW pollution tolerance
Stonefly – shredder
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LOW pollution tolerance
Caddisfly – shredder
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LOW pollution tolerance
Mayfly – grazer
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LOW pollution tolerance
Riffle beetle
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LOW pollution tolerance
Water penny beetle Snail (not pouch)
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MEDIUM pollution tolerance
Damselfly
Dragonfly Crane fly Scud
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Crawdad Mussels/Clams Alderfly Sowbug
MEDIUM pollution tolerance
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HIGH pollution tolerance
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Midge fly Flatworm Aquatic worm Pouch snail
Black fly Leech
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Fish
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Special event sampling
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Snapshot Sampling
Occurs twice a year
Spring Fall
$10/sample for Nitrate, total Phosphorus, total
coliform and E. coli
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Snapshot Procedure
Register for Snapshot online Sample bottles will be sent out Samples must be:
Collected on day of Snapshot Kept cool during transport Returned by time indicated
All samples will be analyzed at UI Coeur d’Alene
water lab
Assistance in lab welcome
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Bacteria
Test for
Total coliform bacteria E. coli
Results in Most Probable
Number per 100 mL of sample water (MPN/100mL)
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Identification and Prevention
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Transport by Boats and Gear
Invasive plants and animals are one of the most
significant threats to our lakes and rivers
Choke out waterways Disrupt water transfer, and increase power generation
costs
Outcompete native species Disrupt aquatic ecosystems
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Invasive Species Prevention
To prevent the transport of invasive species:
Clean: all mud and plant material from sampling
equipment
Drain: all standing water from boats and sampling
equipment
Dry: all surfaces and compartments to prevent the
movement of invasive species
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Eurasian Watermilfoil
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New Zealand Mudsnails
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Zebra & Quagga Mussels
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Zebra and Quagga Mussels
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For more information on invasive species:
Idaho Department of Agriculture: www.agri.idaho.gov Mussel Information: www.100thmeridian.org USGS Invasive Species Program:
www.usgs.gov/ecosystems/invasive_species/
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Questions?
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