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4.3- Aquatic food production systems

Total questions: 20

Worksheet time: 12mins

Name
Class
Date
1.

Does aquaculture provide the potential for increased food production, true or false?

a)

True

b)

False

2.

Demand for aquatic food resources continues to increase as a result of which one also increased?

a)

Human population.

b)

Human resources.

c)

Human activity

3.

Harvesting some species can be controversial (e.g. seals and whales). Ethical issues arise over the rights of indigenous cultures, international conservation legislation, and one more aspect. Name it?

a)

Bio rights.

b)

Bio value.

c)

Bio culture

4.

.Developments in fishing equipment and changes to fishing methods have not led to damage to habitats, true or false?

a)

True

b)

False

5.

.Unsustainable exploitation of aquatic systems can be mitigated at a variety of levels (international, national, local, and individual) through three aspects: policy, changes in consumer behavior and name the third one?

a)

Legislation

b)

Government

c)

Humans

6.

It has grown to provide additional food resources and support economic development and is expected to continue to rise, what is it called?

(a)  

7.

This system was gradually abandoned due to population pressure and decreasing stocks of wild fish, name it.

a)

Polyculture

b)

Poly aquaculture

c)

poly fishing method

8.

Photosynthesis by zooplankton supports a highly diverse range of food webs. -True or False

a)

Ture

b)

False

9.

The highest rates of productivity are found near the sea or in tropical seas where upwellings and nutrient enrichment of surface waters occur.

True or False

a)

Ture

b)

False

10.

Aquaculture has grown to provide additional food resources and support economic development and is expected to continue to rise.

True or False

a)

True

b)

False

11.

Fish consumption was lowest in Asia, while Europe accounted for two-thirds of total consumption--True or False

a)

True

b)

False

12.

Which country has been responsible for much of the increase in world per capita fish supply because of a substantial increase in aquaculture?

a)

China

b)

India

c)

Indonesia

d)

Netherland

13.

Terrestrial food Systems that produce crops (arable) are more energy-efficient than those that produce livestock. -- True or False

a)

True

b)

False

14.

In aquatic systems, perhaps largely due to what factor, most food is harvested from higher trophic levels where the total storages are much smaller.

(a)  

15.

Which is calculated as the rate of increase in natural capital (i.e., natural income) that can be exploited without depleting the original stock or its potential for replenishment.

a)

Sustainable yield

b)

Sustainable Development

c)

Sustainable field

16.

Maximum sustainable amount (MSA) is the largest yield (or harvest) that can be taken from a species' stock over an indefinite period.

True or False

a)

True

b)

False

17.

Name the factor is the point where the highest rate of capture fisheries can occur (this is often difficult to determine). It is used extensively by

fisheries management

a)

Sustainable yield

b)

Maximum sustainable yield

c)

Sustainable field

18.

The most important fish species raised by fish farms are salmon, carp, tilapia, catfish, and cod. Out of all these fish which one account for 85% of the global aquaculture

(a)  

19.

Cultivating rice and fish together has been a tradition for over 2000 years in Southeast Asia. This system (paddy rice field stocked with fish) was gradually abandoned due to population pressure and decreasing stocks of wild fish. What is the name of the agriculture system method is mentioned here?

a)

Polyculture

b)

Aquaculture

c)

Both A & B

20.

Demand for aquatic food resources continues to increase as the human population grows and as more people become wealthy, more health-conscious, and change their diet to include more meat, fish, and dairy products- True or False

a)

True

b)

False