10 Questions
What percentage of the fish catch comes from freshwater waterbodies?
10%
How many people worldwide are economically dependent on fisheries?
500 million
What is the main reason for the increased regulation of fisheries?
Human overfishing and environmental issues
How is modern jurisdiction over fisheries often established?
By a mix of international treaties and local laws
What are the main threats introducing increasing uncertainty in important fisheries worldwide?
Declining fish populations, marine pollution, and destruction of coastal ecosystems
Which term refers to a species that becomes harmful to its native environment after human alterations to its food web?
Invasive species
What is an example of an invasive animal species mentioned in the text?
Feral pigs
What has greatly increased the rate, scale, and geographic range of invasion by organisms into long-established ecosystems?
Human-facilitated introductions
What is an example of an invasive plant species mentioned in the text?
Japanese knotweed
Which organism has decimated kelp forests along the northern California coast due to overharvesting of its natural predator?
Purple sea urchin (Strongylocentrotus purpuratus)
Test your knowledge about the enterprise of raising or harvesting fish and other aquatic life, including wild fisheries and fish farms in freshwater and ocean environments. Learn about the economic impact and challenges in the fishing industry.
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