Infographic 31.3 -Refer to the Graph in Infographic 31.3. What Does the What

question 23

Multiple Choice

Infographic 31.3

-Refer to the graph in Infographic 31.3. What does the figure show?

• A) fish catch in the 1960s containing mostly lower-trophic-level fish, suggesting that higher-trophic-level fish populations had been depleted
• B) the size of fish catch that could be harvested in any given year without decreasing the yield in future years
• C) the decrease in the size of the bycatch of different trophic levels over time as fishing technology improved
• D) a plot of the Marine Trophic Index from 1950 to 2006, which is a measure of the average trophic level of fish taken in a given year and which is an indicator of the status of a marine ecosystem
• E) the annual size of the cod harvest from 1950 to 2006

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