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Worksheets4.3- Aquatic food production systems
Total questions: 20
Worksheet time: 12mins
Does aquaculture provide the potential for increased food production, true or false?
True
False
Demand for aquatic food resources continues to increase as a result of which one also increased?
Human population.
Human resources.
Human activity
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?
Bio rights.
Bio value.
Bio culture
.Developments in fishing equipment and changes to fishing methods have not led to damage to habitats, true or false?
True
False
.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?
Legislation
Government
Humans
It has grown to provide additional food resources and support economic development and is expected to continue to rise, what is it called?
(a)
This system was gradually abandoned due to population pressure and decreasing stocks of wild fish, name it.
Polyculture
Poly aquaculture
poly fishing method
Photosynthesis by zooplankton supports a highly diverse range of food webs. -True or False
Ture
False
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
Ture
False
Aquaculture has grown to provide additional food resources and support economic development and is expected to continue to rise.
True or False
True
False
Fish consumption was lowest in Asia, while Europe accounted for two-thirds of total consumption--True or False
True
False
Which country has been responsible for much of the increase in world per capita fish supply because of a substantial increase in aquaculture?
China
India
Indonesia
Netherland
Terrestrial food Systems that produce crops (arable) are more energy-efficient than those that produce livestock. -- True or False
True
False
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)
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.
Sustainable yield
Sustainable Development
Sustainable field
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
True
False
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
Sustainable yield
Maximum sustainable yield
Sustainable field
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)
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?
Polyculture
Aquaculture
Both A & B
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
True
False
