WorksheetsOceans & Fisheries
Total questions: 17
Worksheet time: 11mins
A species with market-value is a (a) species.
Which are causes of overfishing?
Larger boats (larger holding capacity)
New technology: radar, satellite
Faster boats (travel longer distances)
All of the above
Which type of fishing net is more sustainable?
Diamond shape
Square shape
Which is the largest ocean?
Atlantic Ocean
Indian Ocean
South Sea
Pacific Ocean
By-catch are?
Species with no market-value
Immature fish
Immature fish and species with no market-value
Rare fish
Dolphins, sea turtles and seals are common by-catch species. True or false.
True :(
False :)
How many types of ocean currents are there?
1 type
2 types
3 types
4 types
5 types
The codfish (Gadus morhua) occurs in which ocean?
(a)
Why are mangroves amazing?
They protect settlements from tsunamis
They are nurseries for fish
They are popular tourist spots
Points 1 & 2 only
All of the above
Which is the most sustainable form of fishing?
Line fishing
Surrounding nets
Trawl nets
Seine nets
The equation for estimating fish populations is:
Population = number of fish on first catch x number of fish on second catch divided by: (a) ?
The area of deep ocean (200m+) where light cannot pass through is known as the (a) zone.
The area of shallow ocean close to land is called the continental ___________ ?
Sea
Coast
Drift
Table
Shelf
El Nino occurs in which ocean?
South Pacific
North Pacific
Atlantic
Indian
In the northern hemisphere ocean currents spin in which direction?
Clockwise
Anti-clockwise
Cold ocean currents begin at the ______________?
Deep Ocean
Shallow Ocean
Poles
Equator
Phytoplankton are primary producers. True or false?
True!
False...
