2- Invertebrate Sampling Flashcards
(10 cards)
- swing net at insect
- place in a falcon ttube w cotton + ethyl acetate
terrestrial sampling
aquatic sampling method:
skim net on water surface
surface
aquatic sampling method:
- position net downstream
- rub rocks underneath fast flowing water
riffle
aquatic sampling method:
- place net downstream
- disturb the substrate w hands or feet
gravel/sand
aquatic sampling method:
- pick up a submerged rock
- observe for movement and collect w forceps
rocks
aquatic sampling method:
- pick up submerged branches
- check surface and holes for movement
wood
aquatic sampling method:
- pick up submerged leaves and observe for movement
- place net downstream and disturb plants submerged in water
leaf litter
- insects are attracted to the UV light
- collect insects on the cloth w forceps or directly w the vial
light trap
how to store aquatic/soft bodied specimens
in vials w ethanol (change ethanol when yellows)
how to store terrestrial specimens
- pin specimens to a block of foam through center
- spread wings/legs if can but dont pierce
- larger specimens remove internal organs then stuff w cotton