Marine food webs

Question 1

Simple marine food chain

Answer 1

autotroph - herbivore - carnivore - decomposer

Question 2

Power law distribution is known as

Answer 2

abundance size spectrum

Question 3

Consumption efficiency

Answer 3

The total % productivity available at a trophic level that is consumed

Question 4

Assimilation efficiency

Answer 4

The % food energy taken into the gut that is assimilated

Question 5

Production efficiency

Answer 5

The % assimilated energy incorporated to new biomass

Question 6

Trophic transfer energy

Answer 6

CE x AE x PE

Question 7

Trophic transfer efficiency

Answer 7

10.13%

Question 8

Bottom up control

Answer 8

Resource/ food limitation

Question 9

Top down control

Answer 9

Predation

Question 10

Wasp waist

Answer 10

Mid trophic level bottlenecks
Productive marine ecosystems where the crucial intermediate trophic level is occupied by one species of small plankton feeding pelagic fish

Question 11

Preditor pit

Answer 11

Prey reduces due to predation
Predation then reduces
Breakout - prey increases