Michigan fish habitats
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Rusty Crayfish. Michigan Fish Habitats. Spiny Water Flea. Purple Loosestrife. Ms. D 2005. Flowering Rush. http://www.great-lakes.net/envt/flora-fauna/invasive/invasive.html. Zebra Mussel. Eurasian Milfoil. Ruffe. Why are freshwater habitats Important?. All living things need water

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Michigan fish habitats

Rusty Crayfish

Michigan Fish Habitats

Spiny Water Flea

Purple Loosestrife

Ms. D


Flowering Rush


Zebra Mussel

Eurasian Milfoil


Why are freshwater habitats important
Why are freshwater habitats Important?

  • All living things need water

  • Very diverse in species

  • Declining rapidly

  • Recreation

  • More species rely on coast lines than deep water

Invasive species
Invasive Species

  • What are they?

any species, including its seeds, eggs, spores, or other biological material capable of propagating that species, that is not native to that ecosystem; and whose introduction does or is likely to cause economic or environmental harm or harm to human health.

Invasive species1
Invasive Species

  • Round Goby – from Eurasia in Ballast H2O, they take over prime spawning sites & change habitat

  • Sea Lamprey - predaceous, eel-like fish native to Atlantic Ocean. Came through the Welland Canal. Cause decline of whitefish and lake trout.

  • White Perch – from Atlantic coast came through, Erie and Welland canals. Prolific competitors cause declines of walleye populations.

  • Common Carp - from Caspian Sea region and east Asia. degrade shallow (by turbidity) leading to declines in waterfowl and native fish  

Invasive activity
Invasive Activity

  • You will need:

    • A invasive species card

  • Answer the following questions:

    • Who is it?

    • Describe your species and their environment

    • How & and when did they get here?

    • What damage does it inflict?

Salmon in michigan
Salmon in Michigan

  • Coho or Silver and King or Chinook

  • Continuous planting for fisherman

  • Found in all five lakes, pressuring the “Alewives” population

  • Return to their release site when 3-5 yrs old to spawn and die

  • Are they invasive?


  • Alevin – when egg hatches, comes out of gravel when entire yolk sac is used up

  • Fry – hides on edge of stream

  • Fingerling – length of finger

  • Smolt – loses spots, begins downstream journey

  • Adult – head to ocean (lake) where more food

  • Spawner – returns to river it was born, does not eat, uses all energy to battle way upstream

Native michigan fish
Native Michigan Fish

  • Longnose Gar

  • Burbot

  • Yellow Perch

  • Brook Trout

  • Lake Herring

  • Northern Pike

  • Lake Whitefish

  • Lake Sturgeon

146 types of fish in michigan waterways
146 types of Fish in Michigan waterways

  • HABITAT; The area or environment where an organism or ecological community normally lives or occurs

  • Cold water dwellers (35-65)

  • Fresh Water

  • Clean Water (pollution indicators)

    • Other indicators include insects and larva

Pollution indicator activity
Pollution Indicator Activity

  • Ice cube tray

  • Spoon

  • Bucket

  • Vials

  • Alcohol

  • Worksheet

Koi spawning
Koi Spawning

  • Should be two males to one female

  • Males sandwich female to release eggs

  • Males simultaneously release milt which fertilizes most eggs as they are released

  • The eggs are very sticky and remain wherever they land

  • If parents are left in spawning environment they will eat all the eggs

Egg removal
Egg Removal

  • Parents must be removed

  • Water drained

  • Eggs removed gently with a paint brush tool

  • Eggs must then be placed into a small tank with a bubbler and thermometer


  • Eggs hatch in 24hrs

  • Should be around 75


  • In the first day they

    need to be fed “boiled

    egg yolk” and then crushed koi food

  • To reduce a vitamin C deficiency give pieces of DARK green lettuce

  • Ph of 7 is preferred, ph difference correlates to fry color