4.3|Aquatic food production systems

Question 1

Identify two strategies for fisheries management that could improve the conservation status of sea turtles.

Answer 1

1. Designation of marine protected area
2. Bycatch reduction strategies through policy and regulation
3. Restrict use of fishing net/long lines
4. Replace wild fisheries with aquaculture
5. Ensure fishing nets are not lost at sea

Question 2

State two factors that are used to determine the conservation status of a species.

Answer 2

1. Population size
2. Reproductive behaviour
3. habitat quality

Question 3

Outline one reason why aquaculture production has increased globally.

Answer 3

1. Increase in food demand as human population increases
2. Change in human diet (Pescatarian)

Question 4

Describe two negative environmental impacts that may arise from integrated aquaculture.

Answer 4

1. Escaped fish which may be GMO may outcompeted native fish species
2. Unfeed food may cause excessive nutrient in the water that lead to eutrohphication
3. Pollution due to use of medication or pesticides
4. Spread of diseases due to close proximity (can also affect wild population, lead to decline in biodiversity)
5. Loss of habitat for aqualculture