Macroinvertebrates & Dissection

Identify this organism.

• orb snail

• dobsonfly larvae

• dragonfly nymph

• pouched snail

Which of the following is NOT true about aquatic macroinvertebrates?

• Found in water

• Big enough to be seen without a microscope

• Has a backbone

• Does not have a backbone

Tags

NGSS.MS-LS4-2

What is this?

• stonefly nymph

• centipede

• mayfly nymph

• Dobsonfly larvae (hellgramite)

Tags

NGSS.MS-LS4-2

Which of these are NOT all examples of the macroinvertebrates?

• Damselfly nymph, Cranefly larvae, Midgefly larvae

• Water Boatman, Scud, Crayfish, Water Penny

• fish, salamanders, frogs

• Leech, Pouched Snail, clam

What kind of organisms are we referring to when we say "macroinvertebrate?"

• animals we cannot see with naked eyes

• animals with backbones - fish/salamander/frogs...etc

• animals we can see and have no backbones

• any living things

Which aquatic habitat contains the fewest species and why?

• Water's Edge - food and shelter

• Surface Film - Oxygen

• Open Water- no food or shelter

• Bottom - food and no shelter

Tags

NGSS.MS-LS2-1

These organisms are the best “bioindicators” of water quality:

• aquatic mammals

• fish

• macroinvertebrates

• amphibians

Scuds are also known as

• backswimmers
• dobsonfly larva
• water tigers
• sideswimmers

Which organism is a good indicator of high levels of organic pollution or human/animal waste?

• tubifex worm
• leech
• midgefly larva
• scuds

Dragonfly nymphs, damselfly nymphs, scuds, and clams are considered:

• pollution sensitive - 1

• somewhat pollution sensitive -2

• pollution tolerant -3