Measuring Biological Information
Biological specification always refers to function. An organism is a functional system comprising many functional subsystems. In virtue of their function, these systems embody patterns that are objectively given and can be identified independently of the systems that embody them. Hence these systems are specified in the same sense required by the complexity-specification criterion (see sections 1.3 and 2.5). The specification of organisms can be crashed out in any number of ways. Arno Wouters cashes it out globally in terms of the viability of whole organisms. Michael Behe cashes it out in terms of minimal function of biochemical systems.- Wm. Dembski page 148 of NFL
In the preceding and proceeding paragraphs William Dembski makes it clear that biological specification is CSI- complex specified information.
In the paper "The origin of biological information and the higher taxonomic categories", Stephen C. Meyer wrote:
Dembski (2002) has used the term “complex specified information” (CSI) as a synonym for “specified complexity” to help distinguish functional biological information from mere Shannon information--that is, specified complexity from mere complexity. This review will use this term as well.
In order to be a candidate for natural selection a system must have minimal function: the ability to accomplish a task in physically realistic circumstances.- M. Behe page 45 of “Darwin’s Black Box”
With that said to measure biological information, ie biological specification, all you have to do is count the coding nucleotides of the genes involved for that functioning system and then multiply by 2 (four possible nucleotides = 2^2).