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• UCREFRP Catalog Number: 9552
• Author: U.S. Fish and Wildlife Service.
• Title: Management Plan for the Big-River Fishes of the Lower Colorado River Basin
• USFW Year: 2004.
• USFW - Doc Type: amendment and supplement to the Bonytail, Humpback chub, Colorado pikeminnow, and Razorback sucker Recovery Plans.
• Copyright Material: NO

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APPENDIX ~~~ -GLOSSARY OF TERMS USED IN THE LCRMP DOCUMENT
Breeding pedigree -refers to characterizing the relationships of individuals used
for propagation by known pedigree or inferred from genetic data to insure fish
previously used are not used again and that siblings are not used to produce
fish. Insures the production of the best individuals for a given program.
Broodstock -the use of wild or hatchery stock in a propagation program to
produce fish for stocking.
Critical habitat -specific areas within a species range with physical or biological
features essential to conservation of the species or which may require special
management considerations or protection (USFWS 1988).
Endemic -endemism - refers to a species that occurs in a specific area and
nowhere else (Meffe et al. 1997).
Fixation - a situation in which one allele at a gene is i:lxed (all others are lost)
that may result in a reduction in fitness.
Genetic management plan - a plan detailing the genetics of a given species(s) to
be used to produce fish for a specific management plan.
Genetic refugia -sites where populations of known genetic stocks are
maintained in perpetuity.
Genetic variability -the variability expressed in the genetic makeup of a given
population offish.
Habitat renovation -the redevelopment or modification of a habitat to benefit a
given species or population of fish or other organisms.
Inter-related populations -populations that occur in disjunct habitats but are
related genetically.
Isolated bays -habitats that are not connected to the mainstem Colorado River
or any other tributary -landlocked habitats.
Population success -populations that reproduce and recruit on a continuing
basis maintaining that population.
Reproductive condition -condition describing the sexual development of a given
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