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Water Quality Water Quality
and Habitat in and Habitat in
Shingle CreekShingle Creek
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DefinitionsDefinitions
�� HabitatHabitat
�� MeanderMeander
�� RiffleRiffle
�� PoolPool
�� CobbleCobble
�� SubstrateSubstrate
�� BufferBuffer
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Stream InvertebratesStream Invertebrates
�� Much of the aquatic life in streams is Much of the aquatic life in streams is
composed of benthic macroinvertebrates.composed of benthic macroinvertebrates.
�� Macroinvertebrate includes clams, crayfish, Macroinvertebrate includes clams, crayfish,
worms, and insects.worms, and insects.
�� Macroinvertebrates do not have internal Macroinvertebrates do not have internal
skeletons, are larger than 5 microns, and, skeletons, are larger than 5 microns, and,
typically, live on a stream substrate typically, live on a stream substrate
(bottom, woody debris, macrophyte, etc..)(bottom, woody debris, macrophyte, etc..)
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Developed by: Merrick, Richards Updated: August 2003 U1-m4-s4
Aquatic insect orders
1215+
Trichoptera
(caddisflies)
582
Plecoptera(stoneflies)
357Odonata
(dragonflies and
damselflies)
572Ephemeroptera
(mayflies)
AdultsLarvae
Number of North American aquatic species
(estimated)
Order
www.usask.ca/biology/skabugs/
www.usask.ca/biology/skabugs/
www.usask.ca/biology/skabugs/
www.usask.ca/biology/skabugs/
www.usask.ca/biology/skabugs/
www.usask.ca/biology/skabugs/
www.usask.ca/biology/skabugs/ www.usask.ca/biology/skabugs/
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Developed by: Merrick, Richards Updated: August 2003 U1-m4-s5
Aquatic insect orders
1842+Coleoptera(beetles)
410Hemiptera (true
bugs)
4662+Diptera (flies and midges)
AdultsLarvae
Number of North American aquatic species
(estimated)
Order
www.usask.ca/biology/skabugs/
www.usask.ca/biology/skabugs/
www.usask.ca/biology/skabugs/
www.usask.ca/biology/skabugs/
www.usask.ca/biology/skabugs/
www.usask.ca/biology/skabugs/
www.usask.ca/biology/skabugs/
www.usask.ca/biology/skabugs/
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Developed by: Merrick, Richards Updated: August 2003 U1-m4-s6
Aquatic insect orders
55Hymenoptera
(parasitic wasps)
635Lepidoptera (moths)
6Neuroptera
(spongilla flies)
43Megaloptera
(alderflies and
dobsonflies)
AdultsLarvae
Number of North American aquatic species
(estimated)
Order
www.usask.ca/biology/skabugs/
www.usask.ca/biology/skabugs/
www.usask.ca/biology/skabugs/
www.usask.ca/biology/skabugs/
www.usask.ca/biology/skabugs/
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Developed by: Merrick, Richards Updated: August 2003 U1-m4-s7
Other macroinvertebrates
Crustaceans (crayfish, amphipods, and mites)
Molluscs (clams, mussels, and snails)
Annelids (leeches and
aquatic worms)
http://www.usask.ca/biology/skabugs/
http://www.usask.ca/biology/skabugs/ http://www.usask.ca/biology/skabugs/
http://www.usask.ca/biology/skabugs/
http://www.usask.ca/biology/skabugs/ http://www.usask.ca/biology/skabugs/ http://www.usask.ca/biology/skabugs/
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ShreddersShredders
�� Dominant foodDominant food
–– PlantsPlants
–– Coarse particulate organic material (CPOM)Coarse particulate organic material (CPOM)
–– WoodWood
�� Feeding mechanismsFeeding mechanisms
–– Herbivores Herbivores -- Chew and mine live plantsChew and mine live plants
–– DetritivoresDetritivores -- Chew on CPOMChew on CPOM
�� RepresentativesRepresentatives
–– ScathophagidaeScathophagidae (dung flies)(dung flies)
–– TipulidaeTipulidae (crane flies)(crane flies)
Crane flies
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CollectorsCollectors
�� Dominant foodDominant food–– Decompose fine particulate organic matter (FPOM) Decompose fine particulate organic matter (FPOM)
�� Feeding mechanismsFeeding mechanisms–– Filterers Filterers -- DetritivoresDetritivores
–– Gatherers Gatherers -- DetritivoresDetritivores
�� RepresentativesRepresentatives–– FilterersFilterers
�� Hydropsychidae Hydropsychidae
�� SimulidaeSimulidae (black flies) (black flies)
–– GatherersGatherers�� ElmidaeElmidae (riffle beetles)(riffle beetles)
�� ChironominiChironomini
�� BaetisBaetis
�� EphemerellaEphemerella
�� HexageniaHexagenia
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ScrapersScrapers
�� Dominant foodDominant food
–– Periphyton (attached algae)Periphyton (attached algae)
�� Feeding mechanismsFeeding mechanisms
–– Graze and scrape mineral and organic surfacesGraze and scrape mineral and organic surfaces
�� RepresentativesRepresentatives
–– HelicopsychidaeHelicopsychidae
–– PsephenidaePsephenidae (water pennies)(water pennies)
–– ThaumaleidaeThaumaleidae (solitary midges)(solitary midges)
–– GlossosomaGlossosoma
–– HeptageniaHeptagenia
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PredatorsPredators
�� Dominant foodDominant food–– Living animal tissueLiving animal tissue
�� Feeding mechanismsFeeding mechanisms–– EngulfersEngulfers -- Attack prey and ingest whole animalsAttack prey and ingest whole animals
–– Piercers Piercers -- Pierce tissues, suck fluidsPierce tissues, suck fluids
�� RepresentativesRepresentatives–– EngulfersEngulfers
�� AnisopteraAnisoptera (dragonflies)(dragonflies)
�� AcroneuriaAcroneuria
�� CorydalusCorydalus (hellgrammites)(hellgrammites)
–– PiercersPiercers�� VeliidaeVeliidae (water striders)(water striders)
�� CorixidaeCorixidae (water boatmen)(water boatmen)
�� TabanidaeTabanidae (deerflies & horseflies)(deerflies & horseflies)
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Most Common Inverts in Most Common Inverts in
Shingle CreekShingle Creek
Oligichaeta (worms)Hyalella (scuds)
Cladocera
(water fleas)
Corixidae (water boatman)
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Habitat RequirementsHabitat Requirements
�� Shredders: backwaters, overhanging Shredders: backwaters, overhanging
vegetation, leaf packsvegetation, leaf packs
�� Collectors: riffles, woody debris, Collectors: riffles, woody debris,
substratesubstrate
�� Scrapers: rocks, rifflesScrapers: rocks, riffles
�� Predators: clear water, vegetation, Predators: clear water, vegetation,
rocksrocks
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RiffleRiffle
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Most Common Fish in Most Common Fish in
Shingle CreekShingle Creek
White sucker
Johnny darter
Bigmouth shiner Common carp
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Fish Habitat RequirementsFish Habitat Requirements
�� Top of the food chain: need invertsTop of the food chain: need inverts
�� High dissolved oxygen: rifflesHigh dissolved oxygen: riffles
�� Clear water: visual predatorsClear water: visual predators
�� Sand and gravel substrate to spawnSand and gravel substrate to spawn
�� Pools, backwatersPools, backwaters
�� Overhanging vegetationOverhanging vegetation
�� No barriersNo barriers
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Shingle Creek HabitatShingle Creek Habitat
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Rock vane and pool
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Caddisfly nets
Rock and cobble substrate
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Native buffersNative buffers
�� Long roots stabilize streambanksLong roots stabilize streambanks
�� Filter stormwaterFilter stormwater
�� Provide bird and other wildlife habitat Provide bird and other wildlife habitat
(snapping turtles)(snapping turtles)
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Buffers filter runoff
Overhanging vegetation
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Where’s the water?
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