World Without Fish

Describe the impact of invasive species on native fish populations.

• Invasive species help native fish populations thrive

• Invasive species have no impact on native fish populations

• Invasive species promote biodiversity in native fish populations

• Invasive species negatively impact native fish populations by outcompeting them for resources, introducing diseases, and disrupting the ecosystem balance.

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How do fish populations contribute to the overall health of oceans?

• Fish populations contribute to ocean health by causing pollution

• Fish populations help regulate the marine ecosystem by controlling algae growth, supporting biodiversity, and serving as a food source for other marine organisms.

• Fish populations harm the biodiversity of oceans

• Fish populations have no impact on the marine ecosystem

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How can individuals contribute to the conservation of fish species?

• By ignoring the impact of pollution on fish habitats

• By overfishing and depleting fish populations

• By supporting the use of harmful fishing practices

• By practicing sustainable fishing methods, supporting marine protected areas, reducing plastic pollution, and advocating for policies that protect fish habitats.

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Check all of the following that are possible solutions to overfishing.

• Implementing a quota

• Limiting time at sea

• Closing off certain areas from fishing

• Any type, any amount, and any location can be used to fish

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What is by-catch?

• Catching two species of fish at once

• Unwanted fish and other marine animals caught during commercial fishing

• Discarding the species of fish caught that are unsustainable

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What is the primary role of fish in the oceanic carbon cycle?

• Fish contribute to carbon emissions by releasing carbon dioxide.

• Fish help sequester carbon by consuming phytoplankton and excreting carbon-rich waste.

• Fish have no role in the oceanic carbon cycle.

• Fish increase carbon levels by decomposing organic matter.

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How does overfishing affect marine biodiversity?

• Overfishing increases marine biodiversity by removing predators.

• Overfishing has no effect on marine biodiversity.

• Overfishing decreases marine biodiversity by reducing fish populations and disrupting food chains.

• Overfishing enhances marine biodiversity by creating more space for other species.

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Which of the following is a consequence of a world without fish?

• Increased oceanic oxygen levels.

• Disruption of marine food webs and loss of biodiversity.

• Improved water quality in oceans.

• Enhanced growth of coral reefs.

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What is the impact of ocean acidification on fish populations?

• Ocean acidification has no impact on fish populations.

• Ocean acidification benefits fish populations by increasing food availability.

• Ocean acidification harms fish populations by affecting their sensory abilities and habitat.

• Ocean acidification leads to the growth of fish populations.

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How do marine protected areas (MPAs) contribute to fish conservation?

• MPAs allow unrestricted fishing to boost local economies.

• MPAs have no impact on fish conservation.

• MPAs help conserve fish populations by providing safe habitats and breeding grounds.

• MPAs increase pollution levels in the ocean.

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