In Leon Creek There Are 5 Species of Fish

question 12

Multiple Choice

In Leon Creek there are 5 species of fish. The species and the number of individuals in each species are as follows: 20 catfish, 15 gar, 12 large-mouth bass, 10 perch, and 2 striped bass. Calculate the Shannon-Wiener index value (H') for this fish community.

• A) -0.63
• B) 0.63
• C) 4.20
• D) 67.2
• E) None of the choices are correct.

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Definitions:

Expectancy

The degree to which individuals believe that their effort will lead to effective performance and, consequently, a desired outcome.

Effort

The expenditure of physical or mental energy toward the accomplishment of a task or goal.

Valence

In psychology, refers to the intrinsic attractiveness or aversiveness of an event, object, or situation.

Range

denotes the extent or scope of something, often referring to the difference between the highest and lowest values in a set of data or the variety within a category.