No spine?
No problem!
No problem!
What is the definition of an invertebrate?
An animal naturally lacking a backbone or spine.
Relating to or occurring at the bottom of a body of water.
What family of invertebrates belongs to the order Tricoptera?
(most) Caddisflies
Benthic macroinvertebrates are indicators of what
Water quality
This benthic macroinvertebrate has six hooked legs on upper 1/3 of its body, no gill tufts on the abdomen, and may be in a stick, rock or leaf casing
Caddisfly
This stage of development occurs exclusively in the aquatic environment
Larval stage
In a stream, macroinvertebrate habitat consists of what?
Rocks, stream substrate, aquatic plants, algae, mosses, and woody debris.
What are 3 orders or families of invertebrates less sensitive to pollution?
- Decapoda (crayfish)
- Megaloptera (fishfly, alderfly)
- Hydropsychidae (common netspinners)
- Amphipoda (scud)
When should benthic macroinvertebrate sampling happen?
Typically sampled in summer or fall
Has six legs with hooked tips, antennae, 2 hair-like tails, is very intolerant of impairment
Stonefly or plecoptera
Four functional feeding groups
Shredders, Collectors, Grazers, Predators
Food sources for aquatic macroinvertebrates include these:
aquatic plants, algae, leaf litter, smaller fish, small tadpoles, decaying fish.
Stonefly
Benthic macroinvertebrates are favored in what kind of monitoring?
Environmental effects monitoring.
Has plate-like or feathery gills on abdomen, 6 hooked legs, 2 or 3 hair-like tails and is very intolerant of impairment
Ephemoptera or mayflies
Give one or more examples of a predator.
Both fish and aquatic invertebrates rely on this dissolved chemical
Oxygen
Riffle Beetle belong to which order of invertebrates?
Coleoptera.
Three reasons to sample benthic macroinvertebrates are
- Common inhabitants of lakes, rivers, and streams.
-They lack the ability to move away from pollution
- They are abundant
- Easy to identify
- Respond to stressors
- Ecologically significant
Body is plump and maggot like, with caterpillar-like legs, and has a long body with feathery like 'horns' on the end
Watersnipe fly: Diptera
What does EPT stand for?
Ephemoptera, Plecoptera, Tricoptera
Where does the word benthic originate from?
What family of invertebrates belongs to the order Gastropoda?
Gilled snails
The EPT Richness index estimates this
water quality by the relative abundance of three major orders of stream insects that have low tolerance to water pollution.
scud or amphipoda