8003

• UCREFRP Catalog Number: 8003
• Author: Haynes, C. M. and R. T. Muth.
• Title: Identification of Habitat Requirements and Limiting Factors for Colorado Squawfish and Humpback Chubs ‎(January 1, 1981 to June 30, 1982)‎.
• USFW Year: 1982.
• USFW - Doc Type: SE-3-4,
• Copyright Material: NO

28
APPENDIX B: METHODS FOR THE LABORATORY ANALYSIS
OF GILA CYPHA, G. ROBUSTA, AND G. ELEGANS
Morphomeristic data to be compiled on known developmental series of
humpback chubs, roundtail chubs, and bonytails, and genetic crosses
of these species, include the following:
I. Lengths
A. Anterior margin of snout to:
(1) anterior margin of eye (AE)
(2) posterior margin of eye (PE)
(3) origin of pectorals (OP1)
(4) origin of pelvics (OP2)
(5) posterior margin of yolk (PY)
(6) origin of preanal fold (OPAF)
(7) origin of dorsal f infold (ODF)
(8) origin of dorsal fin (OD)
(9) insertion of dorsal fin (ID)
(10) posterior margin of vent (PV)
(11) origin of anal fin (OA)
(12) insertion of anal fin (IA)
(13) posterior margin of hypural plates(PHP)
(14) anterior margin of forlc of caudal fin (AFC)
(15) posterior margin of fork of caudal fin (PC)
B. Yolk (Y)
C. Pectoral fins (P1)
D. Pelvic fins (P 2)
E. Dorsal fin (D)
F . Anal fin (A)
G. Longest ray of anal fin (LAR)
H. Longest ray of dorsal fin (LDR)
II. Widths
A. Immediately behind posterior margin of eye (BPE)
B. At origin of pectoral fins (OP1)
C. At origin of dorsal fin (OD)
D. Immediately behind posterior margin of vent (BPV)
E. At anterior margin of most posterior myomere (AMPM)
F. Maximum width of yolk (Y)
III. Myomere counts to:
A. Posterior margin of yolk (PY)
B. Origin of preanal (infold (DPAF)
C. Origin of pelvic fins (OP2)
D. Origin of dorsal fin (OD)
E. Posterior margin of vent (PV)
F. Total myomere number (Total)