9550

• UCREFRP Catalog Number: 9550
• Author: Snyder, D. E. and R. T. Muth.
• Title: Catostomid Fish Larvae and Early Juveniles of the Upper Colorado River Basin - Morphological Descriptions, Comparisons, and Computer-interactive Key.
• USFW Year: 2004.
• USFW - Doc Type: Fort Collins, CO.
• Copyright Material: NO

Table 23. Size at developmental interval (left) and gut phase (right) transitions for Catostomus latipinnis. See Figure 5 for
phases of gut folding. Rare or questionable extremes in parentheses.

Transition to mmSL mmTL Transition to mmSL mmTL
Flexion Mesolarva: 13 13(14) 2 - 900 bend: (17)18(-20) (20)21(-24)
Postflexion Mesolarva: (14)15(16) (15)16(17) 3 - Full loop: (19-)21-25(-27) (23-)26-30(-33 )
Metalarva: 19-20(21) 23-24 4 - Partial crossover: (22)23-32(-37) (27)28-39(-46)
Juvenile: 23-24(25) 28-29(-31 ) 5 - Full crossover: (29-)35-42 (36-)40-51

Table 24. Summary of morphometrics and myomere counts by developmental phase for Catostomus latipinnis. See Figure
4 for abbreviations and methods of measurement and counting. Protolarvae with unpigmented eyes excluded.

Flexion Postflexion
Protolarvae (N=9) Mesolarvae (N=10) Mesolarvae (N=20) Metalarvae (N=15) Juveniles (N=19)

SL,mm: II I 10-13 14 I 13-15 172m 14-20 22 1 20-25 32 6 23-43
TL, mm: 12 I 11-13 14 I 14-16 193m 15-24 27 2' 24-31 40 7 29-53
Lengths %SL:
AS to AE 2 0 2-3 3 1 3-4 6 I 3-7 7 I 6-8 8 I 7-10
PE 7 1 6-9 9 1 8-10 12 1 9-14 13 I 12-14 14 1 13-15
OPl 14 1 12-16 18 1 16-19 23 2 19-27 26 I 24-28 25 I 24-28
OP2 53 l' 50-54 55 I 52-57 55 I 52-57
PY 782 75-81 69 9 48-75 60 8b 50-72
OPAF 54 19 32-77 26 3 22-32 34 5' 27-44 55 II 34-67
ODF 35 2 33-38 38 2 35-40 44 3d 36-48 45 0' 45-45
OD 50 I' 49-51 49 I 47-51 48 1 46-49
ill 64 I' 62-67 65 1 62-67 65 1 61-66
PV 79 1 77-81 771 75-78 78 I 76-80 75 2 74-78 74 I 72-76
OA 78 If 76-80 75 I 74-78 75 I 72-77
IA 84 Ig 83-84 82 I 81-84 82 I 80-85
AFC 110 2m 107-112 113 I 111-114 114 Ii 112-116
PC 103 1 102-105 105 1 104-107 113 4m 107-123 122 2h 117-125 123 I 121-125
Y 61 5 54-67 42 171 0-54 7 14m 0-46
PI 6 2 3-9 111 9-12 12 I 10-15 16 1 14-18 18 I 16-19
P2 4 2 0-7 11 2 9-13 14 I 11-15
D 18 2' 15-21 22 I 20-24 24 I 23-26
A 8 I d 5-9 12 2 9-14 14 1 12-16
Depths %SL:
at BPE 8 1 7-9 10 1 9-11 131 11-16 16 1 15-17 16 I 15-17
OPl 9 1 8-10 111 10-12 16 2 13-18 19 1 16-21 19 I 17-22
OD 14 1 13-15 11 1 9-13 14 3' 10-19 19 2 16-22 19 1 17-22
BPV 5 I 4-6 6 0 5-6 8 1 6-10 11 1 9-12 111 10-13
AMPM 3 I 2-3 3 0 3-4 6 1 4-7 7 0 6-8 7 0 7-8
Max. Yolk 12 3 9-16 5 31 0-9 0 1m 0-3
Widths %SL:
at BPE 8 1 6-9 10 1 9-12 13 I 10-15 16 1 14-17 15 1 15-17
OPl 7 1 6-9 7 1 6-8 III 8-13 14 1 13-16 16 1 14-17
OD 10 1 7-11 6 I 5-8 8 2 6-12 12 1 10-15 13 2 11-17
BPV 3 0 3-4 4 I 4-6 6 I 4-8 7 1 6-8 8 1 6-9
AMPM 2 0 1-2 2 0 1-2 3 0 2-3 4 0 3-4 4 0 3-5
Max. Yolk 13 3 9-18 5 31 0-9 1 2m 0-5
Mvomeres:
toPY 38 1 37-39 34 5 22-38 28 6b 21-35
OPAF 23 11 10-37 7 2 5-10 9 3' 6-15 22 8' 9-32
OP2 21 l' 19-23 22 l' 21-24 22 Ik 21-23
ODF 12 2 10-15 13 1 12-15 15 l' 12-17 15 l' 14-15
OD 18 l' 17 -21 18 l' 16-19 18 1 k 17-19
PV 39 1 38-40 39 I 38-40 39 1 37-40 37 l' 36-38 37 1 k 36-38
Total 48 1 47-49 48 I 47-49 48 1 47-49 47 l' 46-48 48 lk 47-48
After PV 9 1 8-10 9 1 8-11 9 1 8-10 10 0' 9-10 II Ik 9-12

x icSD Range

x icSD Range

x icSD Range

x icSD Range

x icSD Range

'N = 17, bN = 6, 'N = 19, dN = 12, eN = 14, fN = 15, gN = 7, hN ~ 13, iN = 2,iN = 18, kN= 9, IN= 11, mN= 25.

~

61