7863

• UCREFRP Catalog Number: 7863
• Author: Nature Conservancy, T.
• Title: Candidate Species Reports from the Natural Heritage Central Database.
• USFW Year: 1996.
• USFW - Doc Type: \
• Copyright Material: NO

'C1f

tI'

'.I

Element Global Ranking Form as of 04 JUN 1996
MACRHYBOPSIS GELIDA

Identifiers:
ELCODE: AFCJB53020
GNAME: MACRHYBOPSIS GELIDA
ELDESCRIP: Sturgeon chub, cyprinidae.

\,

EO Specifications:
EOSPECS: A drainage/portion of a drainage used by the Sturgeon Chub.
The EO contains contiguous stream reaches not separated by
>10 km of unoccupied habitat, >2 km of channalized stream,
dams, or impoundments. Individual observations within an EO
may be tracked in 3 optional fields (for example 18, 19, and
20) and the explanation for what each field contains and the
format of each in a fourth. We suggest the following: Field
18: date and observer; Field 19: location (utm, lat-long, or
TRS); Field 20: eo data, ego # seen, breeding status; Field
17: eplanation of the uses of the three fields with format
used in each. Spawning areas may be critical, however
information is lacking to determine their importance or to
define a spawning EOTYPE. (3/95)

ARANKSPECS: EO contains at least 50 km of occupied stream habitat and
several individuals are captured during surveys at most
sites in appropriate habitat. Threats are manageable.

BRANKSPECS: EO contains 20-50 km of occupied habitat and several
individuals are captured during surveys at most sites in
appropriate habitat. Threats are manageable.

CRANKSPECS: EO contains 10-20 km of occupied stream habitat and several
individuals are captured at most survey sites in appropriate
habitat. If EO contains >20 km of occupied stream threats
may not be manageable.

DRANKSPECS: A known location; population density may be low or threats
are not manageable.

Descript'ors:
TAXDIST: B TAXON. STAT: A
GTAXCOM: Removed from the genus HYBOPSIS and placed in the
resurrected genus MACRHYBOPSIS by B89MAY01NA and Coburn and
Cavender (1992); this change was adopted in the 1991 AFS
checklist (B91ROB01NA). M. AESTIVALIS is closely related to
M. GELIDA.

OLD.TAXCOM:

GEXEMPSITE:
HABITAT:

PERMANENCE: Permanent.

Rankina Factors:
GESTEOS : C
GESTEOSCOM: 58 collecting sites in 1978 (B88LEE01HQUS)

GABUND :