Aquatic Food Chains
These tiny ocean plants make their own food using sunlight.
Phytoplankton
Catching too many fish so they can’t recover is called this
Overfishing
Oceans become more acidic when they absorb too much of this gas.
Carbon dioxide
Small animals like zooplankton eat producers—what are they called?
Primary consumers
This method drags heavy nets across the ocean floor and destroys habitats.
Bottom trawling
Coral turns white and dies when ocean temperatures rise too much.
Coral bleaching
Fish that eat other fish are at this level in the food chain.
Secondary consumers
Lost fishing nets that keep trapping sea life are known as this.
Ghost fishing
Farming fish in tanks or ponds is called this.
Aquaculture
Sharks and ospreys sit at the top of the food chain—what are they?
Top predators/Apex predators
The largest number of fish we can catch without harming future populations.
Maximum Sustainable Yield
These protected ocean zones limit fishing to help nature recover.
Marine areas
Bacteria and fungi break down dead matter and return nutrients to the water.
Decomposers
Eating seaweed instead of tuna is better because it’s lower on this.
Food chain
A farming system where fish waste feeds seaweed and shellfish.
Integrated farming