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Environmental Science > Macroinvertebrates > Flashcards

Macroinvertebrates Flashcards

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Biology 101 flashcards
1
Q

-Biological indicator of water quality
-Benthic macroinvertebrate
-Live in substrate of streams
-Large numbers may indicate poor water quality

A

Aquatic Worm

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2
Q

Mouthpart: Piercing-Sucking
Significance: Pest

A

Midge

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3
Q

Wormlike
Bulge at one end
Somewhat tolerant

A

Blackfly

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4
Q

Large, plump, small appendages or prolegs:

A

Truefly

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5
Q

A simple worm that is flat and thin:

A

Flatworm

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6
Q

Flat and broad, segmented:

A

Leech

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7
Q

A small, freshwater lobster:

A

Crayfish

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8
Q

-Shrimp-like
-Narrow side to side

A

Scud

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9
Q

Has six legs plus fake legs:

A

Alder Fly

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10
Q

Bivalve (double shell):

A

Clam

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11
Q

-Tolerant
-Opens to left

A

Lunged Snail

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12
Q

-Shells open to right side
-Sensitive

A

Gilled Snail

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13
Q

No gills on abdomen:

A

Most Caddisfly

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14
Q

Has gills:

A

Common Netspinner Caddisfly

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15
Q

-No shell
-Exactly 6 legs
-Not wormlike
-Has three thin tails and has feathery gills.

A

Mayfly

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16
Q

-No tail or disc shaped larva
-Adult with hard wings

A

Beetle

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17
Q

Pollution sensitive:

A

Water Penny

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18
Q

-Crustacean and isopod,
-7 pair of legs
-2 pair of antennae, one much longer than other

A

Aquatic Sowbug

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19
Q

Six legs plus fake legs:

A

Fish Fly

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20
Q

-Legs
-Not wormlike
-Two tails
-No gills

A

Stonefly

21
Q

-Not wormlike
-More than 6 legs
-1 paddlelike (whale like)
-Pinchers and antennas

A

Crayfish

22
Q

-Not wormlike
-Six legs
-3 tails
-Feather like gills

A

Mayfly

23
Q

-Wormlike
-6 legs
-Unknown # of legs
-Makes a case around the body (using whatever is in the environment)

A

Most Caddisflies

24
Q

-Not Wormlike
-6 legs
-3 Featherlike/Paddlelike tails

A

Damselfly

25
Q

-Not wormlike
-More than 6 legs
-Body comes to a small point
-Antennae

A

Scud

26
Q

-Wormlike
-6 Legs
-Tiny protrusion (foot like)
-Hairy gills under the body

A

Common Netspinner Caddisfly

27
Q

-Wormlike
-No legs (but may have prolegs)
-Tail like projection
-Large and Plump

A

Truefly

28
Q

-Not worm like
-6 Legs
-3 tiny tails (body comes to a point)
-Wing pads, big eyes

A

Dragonfly

29
Q

-Not worm like (some circular)
-6 legs
-0, tail like projection
-Has many different shapes

A

Beetle/Water Penny

30
Q

-Not wormlike
-6+ Fake legs
-2 small projections
-Large body and pinchers by mouth (harmful)

A

Hellgrammite/Fishfly/Alderfly

31
Q

What bugs are sensitive? (4)

A

Mayfly
Stonefly
Most Caddisfly
Water Penny

32
Q

What bugs are tolerant? (6)

A

Lunged Snails
Black Fly Larvae
Midge Larvae
Aquatic Worms
Flatworms
Leeches

33
Q

How much oxygen in a body of water might indicate what can live in the waters:

A

Dissolved Oxygen

34
Q

Measures how much oxygen is being used up by bacteria and therefore not leaving enough for the other aquatic organisms:

A

Biological Oxygen Demand

35
Q

How much fecal matter is in the water:

A

Coliform

36
Q

Organisms need a certain range in ____ to survive, if the water is too acidic for instance, then aquatic life will die:

A

pH

37
Q

Needed for plant growth, but too much could cause eutrophication:

A

Nitrates

38
Q

Needed for plant growth, but too much could cause eutrophication:

A

Phosphates

39
Q

Determining how clear the water is will help to indicate health as well:

A

Turbidity

40
Q

So the _____ the DO, the ____ the health of the stream:

A

Higher; Better

41
Q

So the _____ the BOD, the ____ the health of the stream:

A

Lower; Better

42
Q

Is there is a direct relation between DO and BOD?

A

Yes

43
Q

Is negative coliform good or bad?

A

Good

44
Q

What’s the best pH?

A

7

45
Q

The ____ the nitrate ppm the better the quality:

A

Lower

46
Q

The ____ the phosphate ppm the better the quality:

A

Lower

47
Q

The _____ the turbidity JTU, the clearer the water:

A

Lower

48
Q

What law protects the watersheds?

A

The Clean Water Act and the Multiple Use-Sustained Yield Act of 1960

49
Q

If someone found dragonflies, crayfish, clams, hellgrammites, and a couple of aquatic worms what would that tell about the water quality in this stream?

A

The stream may have a little less oxygen, contain a bit of pollution, and becoming murky.

Environmental Science (5 decks)

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