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21 Aug 2019
Based on a mark-recapture study you estimated that 86 sea otters lived in a population in the Aleutian Islands. You went back 5 years later and repeated the study. Based on the following data, how did the population change?
Number of otters captured during 1st sampling = 30
Number of otters captured during 2nd sampling = 18
Number of marked otters recaptured during 2nd sampling = 10
A.
The abundance of sea otters decreased
B.
The abundance of sea otters increased
C.
Not enough information to tell
D.
The abundance of sea otters stayed the same
Based on a mark-recapture study you estimated that 86 sea otters lived in a population in the Aleutian Islands. You went back 5 years later and repeated the study. Based on the following data, how did the population change?
Number of otters captured during 1st sampling = 30
Number of otters captured during 2nd sampling = 18
Number of marked otters recaptured during 2nd sampling = 10
A.
The abundance of sea otters decreased
B.
The abundance of sea otters increased
C.
Not enough information to tell
D.
The abundance of sea otters stayed the same
Trinidad TremblayLv2
22 Aug 2019
