WLF 448: Fish & Wildlife Population Ecology
Field Exercise #1, Fall 1996

Summary of Capture Data: Moutain Gulch (9/14/96)

Air temp - 19C
Water temp - 13C

Data for first 30 meter reach

Average width for 30 m reach = 1.4 m
Average midstream depth = 9cm

Tailed Frogs - adults

Number(recap) Stage Sex Length (mm) Weight (g)
1 A M - -
2 J - - -

Tailed Frogs - tadpoles

# Length (mm) # Length (mm) # Length (mm)
1 56 21 42 41 39
2 56 22 42 42 39
3 52 23 42 43 39
4 51 24 41 44 38
5 50 25 41 45 38
6 50 26 41 46 38
7 48 27 41 47 37
8 47 28 41 48 37
9 47 29 41 49 37
10 46 30 41 50 35
11 46 31 41 51 35
12 46 32 41 52 35
13 44 33 41 53 32
14 44 34 41 54 31
15 43 35 41 55 .
16 43 36 40 56 .
17 42 37 40 57 .
18 42 38 40 58 .
19 42 39 40 59 .
20 42 40 39 60 .

Idaho Giant Salamanders - First 30-meter reach

Number (recap) Stage Total length (mm) Snout-vent length (mm) Weight (g)
1 L 183 110 43.0
2 L 115 61 8.5
3 L 132 73 12.5
4 (r) L 134 72 13.5
5 L 86 47 4.0

Data for second 30 meter reach

Average width for 30 m reach = 2.1 m
Average midstream depth = 14 cm

Tailed Frogs - Adults

Number(recap) Stage Sex Length (mm) Weight (g)
1 A M 44 10.5
2 J M 25 2
3 J M 21 2
4 J M 22 1

Tailed frogs - tadpoles

# Length (mm) # Length (mm) # Length (mm)
1 53 21 41 41 21
2 50 22 41 42 21
3 50 23 40 43 20
4 47 24 39 44 20
5 46 25 37 45 20
6 46 26 24 46 20
7 46 27 23 47 20
8 45 28 23 48 20
9 45 29 23 49 20
10 44 30 23 50 20
11 44 31 22 51 .
12 43 32 22 52 .
13 42 33 22 53 .
14 42 34 22 54 .
15 42 35 22 55 .
16 41 36 21 56 .
17 41 37 21 57 .
18 41 38 21 58 .
19 41 39 21 59 .
20 41 40 21 60 .

Idaho Giant Salamanders - Second 30-meter reach

Number (recap) Stage Total length (mm) Snout-vent length (mm) Weight (g)
1 L 175 114 45.5
2 L 168 101 26
3 (r) L 210 114 57
4 L 185 111 35
5 L 124 78 14
6 L 186 110 43
7 L 172 94 29
8 L 143 82 28

First 5-meter reach

mean width of 1.4 m
mean midstream depth = 9 cm

Tailed Frogs -Adults & Juveniles

Number(recap) Stage Sex Length (mm) Weight (g)
1 J M 24 2

Tailed Frogs - tadpoles

# Length (mm)
1 57
2 52
3 49
4 46
5 44
6 42
7 42
8 41
9 39
10 38
11 36

Idaho Giant Salamanders First 5-meter reach

Number(recap) Stage Total length (mm) Snout-vent length (mm) Weight (g)
1 L 162 98 31
2 L 115 63 10
3 L 141 86 22
4 L 184 107 49

2nd 5-m reach

1.8 meters wide, 3 cm deep

Tailed frogs - Adults and juveniles

Number(recap) Stage Sex Length (mm) Weight (g)
1 J . . 1.5
2 J . . 0.9

Tailed frogs - tadpoles

# Length (mm)
1 50
2 47
3 42
4 42
5 41
6 40
7 39
8 37
9 35
10 35
11 35
12 34

Idaho Giant Salamanders Second 5-meter reach

Number(recap) Stage Total length (mm) Snout-vent length (mm) Weight (g)
1 L 165 90 13.5
2 L 90 48 4

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Revised: 10 June 1998