Page 1

Water tre

Water str

Whirl igig

1

ils sna r e

IN OPEN WATER

Toebit ers Freshw at

6

s

Stone fly n

Fly lar va e

1 ms or

1 phs ym

3 e larva dis

10 vae ar

IN AMONGST COBBLES/ROCKS

or scuds ers m

3

3

yfish or yab bi cra r e

Black fly l

4

od worm , blo s ids

ies nn

vae lar

Leech es

vae lar

Gordi an w

Freshw at

3

wns pra r e

Water pe

Free-l ivin

is larvae add c g

8 Drago nfl y

ps m

Chiron om

10

2

Sidesw im

bs ra

Mayfl yn y

5 to 6 Very good 4 to 5 Poor < 4 Very poor

rs me

Cased ca d

2

3 hs mp

1-2

=

Number of different waterbugs

1

s er

Flatwo rm

false spide bs, rc a r c

le larvae eet b r

Dams elfl y

ssels and cl am mu r e

Very tolerant

5

Freshw at

4 Five c en t

2

3-4

Total of waterbug SIGNAL values

s te

1 Water ig

Scave ng e

larvae etle e b

3

wriggle rs vae, lar

4

Glass shr i

Whirl igig

en tm

=

Waterway Health Score: > 6 Excellent

Water mi

rpions sco r e

Mosq uit o

Leafy wa t

Marsh be

arvae le l et

Tolerant

*SIGNAL – Stream Invertebrate Grade Number – Average Level

How healthy is your waterbody?

4

4

5-7

es

Water bo a

ers ad

Sensitve

The size of waterbugs are not to scale.

6

s

Freshw at

5

ers id

Very Sensitive 8-10

2

les et

Worm s

s etle be

Date:

The waterbugs (aquatic macroinvertebrates) found can indicate the health of a waterbody. Sample your site and tick the circle if you find the waterbug. Waterbugs have different sensitivities to pollution and changes, and therefore different SIGNAL* scores.

Backs wi m

Pogs

4 Water be

IN AMONGST PLANTS

s/needlebug ion s p r

2

IN AMONGST WOODY HABITAT

rs ide

k bugs ic /s

nder water sc o Sle

ON THE SURFACE

Fishin gs p

What waterbugs can you find?

Name: Waterbody:

9 2 Proudly supported by:

9

4

3

1

2

6

8

5

The River Detectives program wishes to acknowledge the following groups for their permission to use their images and illustrations: Steve Walker (2006) from the B&W images in ‘Critter Catalogue: a guide to the aquatic invertebrates of South Australian inland waters (2004 EPA)’; John Gooderham The Waterbug Company; Christine Rockley from the publication Water Bug Detective Guide, 2009, with permission of the NSW Office of Environment and Heritage.

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