Aquaculture Station Rotation Assessment

The rearing of aquatic animals and plants for human consumption or use.

• Ranching

• Aquaculture

• Agriculture

• Cultivation

Which of the following are environmental impacts of extensive aquaculture?

• spread of disease

• pollution

• introduced species

• all of the above

• none of the above

It takes several times the weight of a salmon in smaller fish feed to produce an adult salmon through farming.

• true

• false

Farmed fish is healthier.

• true
• false

Salmon farming threatens the health of wild salmon stocks primarily because

• farmed salmon can spread parasites and disease to wild salmon

• salmon farming prevents interbreeding between domesticated varieties of salmon and their wild counterparts

• salmon farming prevents commercial fishing fleets from overharvesting wild salmon

• farmed salmon compete with wild salmon for spawning sites

The farming of fish such as salmon at aquaculture facilities poses a threat to marine ecosystems because

• the farmed fish can escape and outcompete wild fish for food and territory

• farm-raised salmon often pass on toxic chemicals such as mercury to eagles and other fish-eating birds

• invasive plant species common in aquaculture facilities can spread to nearby waters

• fewer wild fish will be harvested for human consumption

Which poses a health risk to humans who eat large quantities of marine fish such as swordfish and tuna?

• radon

• mercury

• lead

• copper

Which of the following is the most likely route for mercury to enter the food web?

• Municipal waste --> landfill--> groundwater --> plants & vegetation

• Medical waste incinerators -> atmosphere -> grass -> cows

• Coal-burning emissions -> deposition -> ocean -> plankton-> fishes

• Organic fertilizers --> soil --> groundwater --> lake --> trout

This image represents a:

• Hatchery

• Purse-seine

• Bottom trawling

• Long line

Used in offshore aquaculture, fish are raised in enclosures floating in the oceans

• Hatchery

• Cages/Pens

• Purse-Seine

• Long Line