Fisheries

Question 1

The Ocean Wise symbol represents…

Answer 1

that the seafood was caught without harm to the environment

Question 2

5 human impacts on the environment

Answer 2

• Deforestation
• Overharvesting
• Non-native species
• Global warming
• Desertification

Question 3

Methods used for wild-caught fish

Answer 3

• Bottom longlining (good)
• Surface longlining (bad)
• Trawling (bad)
• Traps and pots (good)
• Trolling (good)
• Dredging (bad)
• Gillnet
• Purse seine

Question 4

Sustainable fishing

Answer 4

seafood that you consume was caught without harming the environment or native animals

Question 5

Aquaculture

Answer 5

“water farming”. Can relieve strain on wild populations, but certain approaches have environmental impacts

Question 6

Fish stock

Answer 6

subpopulations of a particular species of fish

Question 7

Overfishing

Answer 7

when the stock of fish in an area has been depleted due to excessive fishing

Question 8

Population

Answer 8

a community of animals or plants which belong to the same species and/or able to breed with each other

Question 9

Trophic level

Answer 9

a hierarchy level in an ecosystem, compromising organisms that share the same responsibility in the food chain, and the same usage of primary sources of energy

Question 10

Trophic cascade

Answer 10

altering the trophic pyramid in such a way that it drastically alters the entire food chain

Question 11

Bycatch

Answer 11

all fisheries-related mortality or injury other than the retained catch. All discards are considered bycatch unless there is valid scientific evidence of high post-release survival and no documented evidence of negative impacts on the population level

Question 12

Carrying capacity

Answer 12

the number of living organisms or non-living actors that a region can support without environmental ruin

Question 13

Net pens

Answer 13

netted off habitats in the open ocean or lake (many dangerous chemicals or diseases can seep into the ecosystem, habitat damage can occur, predators can cause damage to the nets)

Question 14

Closed containment farming

Answer 14

housed inland and separated from any wild natural environment, where fish are raised in contained systems (no danger of introducing diseases or invasive species into the environment, waste is removed before entering the system, water is reused and recycled)

Question 15

Shellfish farming

Answer 15

shellfish are suspended in the water by ropes, trays, or mesh bags (these organisms do not require food, they have a favorable impact on the environment as they remove extra nutrients from the water)

Question 16

Pond farming

Answer 16

coastal areas are cleared out and used to build contained open water ponds for farming (environmental damage, sickness and infection can spread quickly between organisms)