Soft bottom Benthos Flashcards
1
Q
What lives here
A
Epifauna-lives above the dirt
Infauna- lives in the dirt
2
Q
What impacts soft benthic layers
A
Primary production
-not much of it, relies on secondary production
Temperature
- impacts what lives there
- -Cold: larger live births less Diversity
- -Warm: Smaller, eggs, more diversity
Sediments
- sand:filterfieeders
- Silt: suspention feeders
3
Q
Bernoulli’s Principle and flow
A
Sediments and food particles RISE
Bernoullis priciple
slow less pressure go under + fast more pressure go over = lift
4
Q
Sediment reworking
A
Infaunal speciese can fuck with the mud
- aeration
- tube building
- deposit feeders that eat sediments
5
Q
Benthic feeding adaptations
A
Active
-pump though water
passive
-comb though water
6
Q
Deposit feeders vs suspending feeders
A
sus feeders- use fans or other things to eat plankton out of the water
Dep feeders-
- -swallowers
- -tentacular
- -syphon
7
Q
Coprophagy
A
They eat the mucus found in poop
8
Q
Biotic interactions in SS
A
Major structuring interactions:
Predation
Competition
Biotic disturbance
