Biology, 29.03.2021 17:10 sethjohnson386pbnm3x
A fisheries biologist studied a population of cichlids in a 120 ha section of Lake Tanganyika in central Africa. She found that the fish lived only in scattered reed beds that accounted for 15% of the study area. Data was collected using the mark-recapture methods and summarized below:
Number of cichlids marked: 185
Number of cichlids captured in the second sample: 208
Number of marked cichlids recaptured: 13
A) How many cichlids would you estimate to be in the study area? (4)
B) What is the density of the cichlid population per hectare? (3)
C) What is the dispersion pattern of the fish? (1)
D) How might the dispersion pattern affect your interpretation of their density?
Answers: 3
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A fisheries biologist studied a population of cichlids in a 120 ha section of Lake Tanganyika in cen...
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