The department shall determine the status and the trend of bighorn sheep populations by management units. A plan shall be developed for each of the management units. The plan for each management unit shall include all of the following:
(a) Data on the numbers, age, sex ratios, and distribution of bighorn sheep within the management unit.
(b) A survey of range conditions and a report on the competition that may exist as a result of human, livestock, wild burro, or any other mammal encroachment.
(c) An assessment of the need to relocate or reestablish bighorn populations.
(d) A statement on the prevalence of disease or parasites within the population.
(e) Recommendations for achieving the policy objective of Section 4900.