Aquatic ecosystems - Trophic interaction
10 important questions on Aquatic ecosystems - Trophic interaction
What are the 2 strategies of competition?
2) Inference (physical interference, agressive)
What are the forms of biological interaction?
- scramble competition
-interference competition
2. Predation
-food web relations
Why is competition between primary producers so important in the water?
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What is the aquatic food web?
2nd: zooplankton
3rd: planktivorous fish
4th:piscivorous fish
What are ontogenitic shifts?
Why is it usefull to understand the food web?
2) effect of eutrophication
3) effect of toxic compounds
What is the size-efficiency hypothesis?
Why is the water more turbid in lakes with a lot of fish?
How can fish cause turbid water?
2) disturb the sediment and so bring back nutrients in the water for algae to eat and cause turbidity
What is the Dutch stratagy to clear water with fish?
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