KÝm­macroinvertebrates1uCreated by Tracy Cindric in 2002 for use with ecology classes using macroinvertebrates to moniter creek water quality%˙˙ CXAttdata1/4" - 1/2" (6mm-1cm)€less than 1/4" ( 6mm)€1/2-3/4" (1cm-2cm)€3/4-1" (2cm-2.5cm)€1-1 1/2" (2.5cm-4cm)€1 1/2-2" (4cm-5cm)€longer than 2" (5 cm)€'Shell has a swirl with opening on rightjHold the organism so the apex (pointy part) of the shell is at the top. Opening to shell is on the right,€ Shell is flat€No shell is present€No legs present€2 legs present€6 legs present€8 legs present€ Hooked legs€Segmented, unhooked legs€Large, easily seen eyes€$Eyes difficult to see or not present€Saucer shaped body€Worm-shaped body€Lobster-like body€Body shape not listed above€ 2 thin tails € 3 thin tails€Fan-shaped tail€3 broad, oar shaped tails€Suction pad on end€5End appears swollen (1.5 times as large as other end)€Finger-like lobes at end€2 hooks at end€4 hooks at end€ No tail or other features at end€ Antennae presentJAntennae (whisker-like projectiong from the front of the head) are present antennae.jpg€˙˙€ No antennae present€"Many feelers present on lower half€$Shell has swirl with opening on leftiHold the organism so the apex (pointy part) of the shell is at the top. Opening to shell is on the left. ˙˙ CXMenudata˙˙ '€SizeŠMeasure the body of the critter (include tails and antennae) using the ruler provided. Try to make your measurements gently and quickly return the critter to the creek.Stonefly w meas line.gif'€Shell VHard outer shell can be swirled like an ice cream cone or flat and joined at one area. Slide1.JPG$ '€LegssCount the number of legs and type of legs present, if there are any. Be careful to avoid counting feelers as legs.Macroinveritbrates.jpg'€Number of legs '€ Type of legs'€Eyes=Quickly glance at the critter. Are eyes immediately visible?Eyes.jpg'€ Body Shape+Determine the general shape of the critter.Body Shape.jpg'€Tails or caudal end features&Look at the opposite end from the headTail shape.jpg #'€Antennae\Be careful when using this characteristic. Remember that antennae can be broken off easily. antennae.jpg "{Stream Quality Assessment Biological Monitoring Power Point by Linda Pettit (Franklin Soil and Water Conservation District)˙˙ CXItemname Aquatic worm (Class Oligochaeta)2€$Black fly larvae (Phylum Simuliidae)2€$Caddislfy larvae (Order Trichoptera)2€ Clam (Class Bivalvia)2€ #Crane fly Larvae (Phylum Tipulidae)2€Crayfish (Family Cambaridae)2€%Damselfly Nymph (Suborder Zygoptera )2€5Dobsonfly Larvae or Hellgrammite (Family Corydalidae)2€&Dragonfly nymph (Suborder Anisoptera )2€Gilled Snail (Class Gastropoda)2€ Leech (Class Hirudinea)2€"Mayfly nymph (Order Ephemeroptera)2€ "Midge larvae (Order Ephemeroptera)2€'Pouch (lunged) snail (Class Gastropoda)2€!Stonefly nymph (Order Plecoptera)2€.Water penny beetle larvae (Family Psephenidae)˙˙ CXItemrec˙˙˙˙˙˙˙˙˙˙˙˙(Stonefly has two tails and long antennae Slide1a.JPGC€ ˙˙˙˙˙˙˙˙˙˙˙˙)Mayfly has three tails and short antennae Slide2.JPGC€˙˙˙˙˙˙˙˙˙˙˙˙`Flat, circular body. Usually found attached under rocks in quickly flowing areas of the stream. Slide3.JPGC€ ˙˙˙˙˙˙˙˙˙˙˙˙kShell opens to the right when the snail is held so the apex is at the top and the opening is at the bottom. Slide4.JPGC€˙˙˙˙˙˙˙˙˙˙˙˙ˇWorm-like body with 6 legs near head. Body is usually greenish with a dark head. Found under rocks located in swiftly moving current in "rock house" (see picture) on bottom of rock. Slide5.JPGC€˙˙˙˙˙˙˙˙˙˙˙˙}Has 6 legs on upper third of body and many paired feelers on lower two-thirds of body. Has pinchers near mouth - be careful! Slide6.JPGC€˙˙˙˙˙˙˙˙˙˙˙˙gLooks like small lobsters. Moves quickly in water. Has two large claws. Be careful - they may pinch! Slide8.JPGC€˙˙˙˙˙˙˙˙˙˙˙˙AHas 6 hooked legs and very large eyes (take up most of its head). Slide9.JPGC€˙˙˙˙˙˙˙˙˙˙˙˙J3 delicate, feathery, oar shaped extensions of tail. 6 thin, hooked legs. Slide10.JPGC€˙˙˙˙˙˙˙˙˙˙˙˙rCaterpillar-like segmented body. Usually white but can be green or brown. Finger-like lobes at rear end of body. Slide11.JPGC€˙˙˙˙˙˙˙˙˙˙˙˙,Hard outer shell. Two equal parts to shell. Slide12.JPGC€ ˙˙˙˙˙˙˙˙˙˙˙˙(Worm-like body with suction pads at end. Slide13.JPGC€˙˙˙˙˙˙˙˙˙˙˙˙Look like thin earthworms Slide14.JPGC€ ˙˙˙˙˙˙˙˙˙˙˙˙sBody looks like segmented worm with one leg in the front and one in the back on each side. Squirm quickly to move. Slide15.JPGC€˙˙˙˙˙˙˙˙˙˙˙˙EOne end of body appears swollen and has suction pad. Has black head. Slide16.JPGC€ ˙˙˙˙˙˙˙˙˙˙˙˙jShell opens to the left when the snail is held so the apex is at the top and the opening is at the bottom. Slide17.JPG˙˙ CXDatablock =RbRŁ—€˙"€Ň ’*@ }Ł?R!€R!? "€? „ €Š   "€