I ran across a very useful chapter in Fisheries Techniques from American Fisheries Society, BR Murphy & DW Willis eds. (our David Willis I suspect) Chapter 15 is Length, Weight and Associated Structural Indices by Anderson & Neumann.
This chapter has some fairly broad data (normalized for various datasets) for fish size and weight. Many later authors cite this as the definitive standard weight reference. The standard weight charts we have in our archive are for PA fish, and are a bit different.
They give the parameters needed to create a chart or curve of length vs standard weight. They also have some guidelines on what constitutes various grades of fish: stock, quality, preferred, memorable, and trophy class.
I've formatted the data for all the fish I see discussed here. It cannot make it look good with the lack of formatting available on UBB. So I've made a separate listing for each fish- you'll have to scroll down.
I'd be happy to make a different table if anyone wants different ranges or increments. Tis simple.
Here is a list of the fish species with standard weights noted below: Blk Crappie BCP, Bluegill BG, Gizzard Shad GSD, Golden Shiner GSH, Pumpkinseed PS, Redear Sunfish RES, White Crappie WCP, Yellow Perch YP, Chain Pickerel CP, Channel Catfish CC, Largemouth Bass LMB, Northern Pike NP, Rainbow Trout pond res, RBT, Smallmouth Bass SMB, Striped Bass SB, Hybrid Striped Bass HSB, and Walleye WE.
Fish Black Crappie
Length, "
Stock 5
Quality 8
Preferred 10
Memorable 12
Trophy 15
Length Weight
inches lbs
4 ==== 0.03
4.5 ==== 0.04
5 ==== 0.06
5.5 ==== 0.08
6 ==== 0.11
6.5 ==== 0.14
7 ==== 0.18
7.5 ==== 0.22
8 ==== 0.28
8.5 ==== 0.34
9 ==== 0.41
9.5 ==== 0.49
10 ==== 0.59
10.5 ==== 0.69
11 ==== 0.81
11.5 ==== 0.94
12 ==== 1.08
12.5 ==== 1.24
13 ==== 1.41
13.5 ==== 1.60
14 ==== 1.81
14.5 ==== 2.04
15 ==== 2.28
15.5 ==== 2.54
16 ==== 2.83
16.5 ==== 3.14
17 ==== 3.47
Fish Bluegill
Length, "
Stock 3
Quality 6
Preferred 8
Memorable 10
Trophy 12
Length Weight
inches lbs
3 ==== 0.02
3.5 ==== 0.03
4 ==== 0.04
4.5 ==== 0.06
5 ==== 0.09
5.5 ==== 0.12
6 ==== 0.16
6.5 ==== 0.21
7 ==== 0.27
7.5 ==== 0.34
8 ==== 0.42
8.5 ==== 0.51
9 ==== 0.62
9.5 ==== 0.74
10 ==== 0.88
10.5 ==== 1.04
11 ==== 1.21
11.5 ==== 1.40
12 ==== 1.61
12.5 ==== 1.85
13 ==== 2.10
Fish Gizzard Shad
Length, "
Stock 7
Quality 11
Preferred 0
Memorable 0
Trophy 0
Length Weight
inches lbs
7 ==== 0.13
7.5 ==== 0.16
8 ==== 0.19
8.5 ==== 0.23
9 ==== 0.28
9.5 ==== 0.33
10 ==== 0.39
10.5 ==== 0.45
11 ==== 0.53
11.5 ==== 0.61
12 ==== 0.69
12.5 ==== 0.79
13 ==== 0.89
Fish Golden Shiner
Length, "
Stock 0
Quality 0
Preferred 0
Memorable 0
Trophy 0
Length Weight
inches lbs
2 ==== 0.00
2.5 ==== 0.01
3 ==== 0.01
3.5 ==== 0.02
4 ==== 0.02
4.5 ==== 0.04
5 ==== 0.05
5.5 ==== 0.07
6 ==== 0.09
6.5 ==== 0.12
7 ==== 0.15
7.5 ==== 0.19
8 ==== 0.23
8.5 ==== 0.29
9 ==== 0.35
9.5 ==== 0.41
10 ==== 0.49
10.5 ==== 0.58
11 ==== 0.67
11.5 ==== 0.78
12 ==== 0.90
12.5 ==== 1.03
13 ==== 1.17
Fish Pumpkinseed
Length, "
Stock 3
Quality 6
Preferred 8
Memorable 10
Trophy 12
Length Weight
inches lbs
3 ==== 0.02
3.5 ==== 0.03
4 ==== 0.05
4.5 ==== 0.07
5 ==== 0.09
5.5 ==== 0.13
6 ==== 0.17
6.5 ==== 0.22
7 ==== 0.28
7.5 ==== 0.35
8 ==== 0.43
8.5 ==== 0.52
9 ==== 0.63
9.5 ==== 0.75
10 ==== 0.89
10.5 ==== 1.04
11 ==== 1.21
11.5 ==== 1.39
12 ==== 1.60
12.5 ==== 1.83
13 ==== 2.07
13.5 ==== 2.34
14 ==== 2.64
Fish Redear
Length, "
Stock………. 4
Quality….… 7
Preferred.. 9
Memorable 11
Trophy….… 13
Length Weight
inches lbs
3 ==== 0.02
3.5 ==== 0.03
4 ==== 0.04
4.5 ==== 0.06
5 ==== 0.08
5.5 ==== 0.11
6 ==== 0.15
6.5 ==== 0.19
7 ==== 0.24
7.5 ==== 0.29
8 ==== 0.36
8.5 ==== 0.43
9 ==== 0.52
9.5 ==== 0.61
10 ==== 0.72
10.5 ==== 0.84
11 ==== 0.97
11.5 ==== 1.11
12 ==== 1.27
12.5 ==== 1.44
13 ==== 1.63
13.5 ==== 1.83
14 ==== 2.05
14.5 ==== 2.29
15 ==== 2.54
Fish White Crappie
Length, "
Stock………. 5
Quality….… 8
Preferred.. 10
Memorable 12
Trophy….… 15
Length Weight
inches lbs
4 ==== 0.02
4.5 ==== 0.04
5 ==== 0.05
5.5 ==== 0.07
6 ==== 0.09
6.5 ==== 0.12
7 ==== 0.16
7.5 ==== 0.20
8 ==== 0.25
8.5 ==== 0.30
9 ==== 0.36
9.5 ==== 0.44
10 ==== 0.52
10.5 ==== 0.61
11 ==== 0.71
11.5 ==== 0.82
12 ==== 0.95
12.5 ==== 1.09
13 ==== 1.24
13.5 ==== 1.41
14 ==== 1.59
14.5 ==== 1.79
15 ==== 2.00
15.5 ==== 2.23
16 ==== 2.48
16.5 ==== 2.75
17 ==== 3.03
Fish Yellow Perch
Length, "
Stock………. 5
Quality….… 8
Preferred.. 10
Memorable 12
Trophy….… 15
Length Weight
inches lbs
4 ==== 0.03
4.5 ==== 0.04
5 ==== 0.06
5.5 ==== 0.08
6 ==== 0.10
6.5 ==== 0.13
7 ==== 0.17
7.5 ==== 0.21
8 ==== 0.26
8.5 ==== 0.31
9 ==== 0.38
9.5 ==== 0.45
10 ==== 0.53
10.5 ==== 0.62
11 ==== 0.72
11.5 ==== 0.83
12 ==== 0.95
12.5 ==== 1.09
13 ==== 1.24
13.5 ==== 1.40
14 ==== 1.57
14.5 ==== 1.76
15 ==== 1.96
15.5 ==== 2.18
16 ==== 2.42
16.5 ==== 2.67
17 ==== 2.94
Fish Chain Pickerel
Length, "
Stock………. 10
Quality….… 15
Preferred.. 20
Memorable 25
Trophy….… 30
Length Weight
inches lbs
6 ==== 0.17
7 ==== 0.28
8 ==== 0.43
9 ==== 0.63
10 ==== 0.89
11 ==== 1.21
12 ==== 1.61
13 ==== 2.09
14 ==== 2.65
15 ==== 3.32
16 ==== 4.09
17 ==== 4.98
18 ==== 6.00
19 ==== 7.14
20 ==== 8.44
21 ==== 9.88
22 ==== 11.49
23 ==== 13.28
24 ==== 15.24
25 ==== 17.40
26 ==== 19.76
27 ==== 22.33
28 ==== 25.13
29 ==== 28.16
30 ==== 31.43
31 ==== 34.95
32 ==== 38.74
Fish Channel Catfish
Length, "
Stock………. 11
Quality….… 16
Preferred.. 24
Memorable 28
Trophy….… 36
Length Weight
inches lbs
6 ==== 0.05
7 ==== 0.09
8 ==== 0.14
9 ==== 0.21
10 ==== 0.29
11 ==== 0.40
12 ==== 0.53
13 ==== 0.69
14 ==== 0.88
15 ==== 1.11
16 ==== 1.37
17 ==== 1.68
18 ==== 2.02
19 ==== 2.42
20 ==== 2.86
21 ==== 3.36
22 ==== 3.92
23 ==== 4.53
24 ==== 5.22
25 ==== 5.97
26 ==== 6.79
27 ==== 7.69
28 ==== 8.67
29 ==== 9.73
30 ==== 10.88
31 ==== 12.12
32 ==== 13.46
33 ==== 14.89
34 ==== 16.43
35 ==== 18.08
36 ==== 19.84
37 ==== 21.71
38 ==== 23.70
39 ==== 25.82
40 ==== 28.07
Fish LMB
Length, "
Stock………. 8
Quality….… 12
Preferred.. 15
Memorable 20
Trophy….… 25
Length Weight
inches lbs
6 ==== 0.10
7 ==== 0.16
8 ==== 0.25
9 ==== 0.36
10 ==== 0.50
11 ==== 0.68
12 ==== 0.90
13 ==== 1.16
14 ==== 1.47
15 ==== 1.83
16 ==== 2.25
17 ==== 2.73
18 ==== 3.28
19 ==== 3.89
20 ==== 4.59
21 ==== 5.36
22 ==== 6.22
23 ==== 7.17
24 ==== 8.21
25 ==== 9.35
26 ==== 10.60
27 ==== 11.95
28 ==== 13.42
Fish Northern Pike
Length, "
Stock………. 14
Quality….… 21
Preferred.. 28
Memorable 34
Trophy….… 44
Length Weight
inches lbs
9 ==== 0.16
10 ==== 0.22
11 ==== 0.30
12 ==== 0.39
13 ==== 0.51
14 ==== 0.64
15 ==== 0.79
16 ==== 0.96
17 ==== 1.16
18 ==== 1.38
19 ==== 1.64
20 ==== 1.92
21 ==== 2.23
22 ==== 2.58
23 ==== 2.96
24 ==== 3.37
25 ==== 3.83
26 ==== 4.32
27 ==== 4.86
28 ==== 5.44
29 ==== 6.06
30 ==== 6.73
31 ==== 7.45
32 ==== 8.22
33 ==== 9.04
34 ==== 9.92
35 ==== 10.85
36 ==== 11.84
37 ==== 12.89
38 ==== 14.00
39 ==== 15.17
40 ==== 16.41
41 ==== 17.71
42 ==== 19.08
43 ==== 20.52
44 ==== 22.04
Fish Rainbow Trout*
*pond/reservoir
Length, "
Stock………. 10
Quality….… 16
Preferred.. 20
Memorable 26
Trophy….… 31
Length Weight
inches lbs
6 ==== 0.09
7 ==== 0.15
8 ==== 0.22
9 ==== 0.32
10 ==== 0.43
11 ==== 0.58
12 ==== 0.75
13 ==== 0.95
14 ==== 1.18
15 ==== 1.45
16 ==== 1.76
17 ==== 2.11
18 ==== 2.51
19 ==== 2.95
20 ==== 3.44
21 ==== 3.98
22 ==== 4.57
23 ==== 5.22
24 ==== 5.93
25 ==== 6.70
26 ==== 7.53
27 ==== 8.43
28 ==== 9.40
29 ==== 10.44
30 ==== 11.55
31 ==== 12.74
32 ==== 14.01
Fish SMB
Length, "
Stock………. 7
Quality….… 11
Preferred.. 14
Memorable 17
Trophy….… 20
Length Weight
inches lbs
6 ==== 0.10
7 ==== 0.16
8 ==== 0.25
9 ==== 0.37
10 ==== 0.51
11 ==== 0.69
12 ==== 0.92
13 ==== 1.18
14 ==== 1.50
15 ==== 1.87
16 ==== 2.30
17 ==== 2.80
18 ==== 3.36
19 ==== 3.99
20 ==== 4.70
21 ==== 5.50
22 ==== 6.38
23 ==== 7.35
24 ==== 8.43
Fish Striped Bass
Length, "
Stock………. 12
Quality….… 20
Preferred.. 30
Memorable 35
Trophy….… 45
Length Weight
inches lbs
10 ==== 0.45
11 ==== 0.59
12 ==== 0.77
13 ==== 0.98
14 ==== 1.23
15 ==== 1.51
16 ==== 1.83
17 ==== 2.20
18 ==== 2.61
19 ==== 3.07
20 ==== 3.58
21 ==== 4.15
22 ==== 4.77
23 ==== 5.45
24 ==== 6.20
25 ==== 7.01
26 ==== 7.89
27 ==== 8.83
28 ==== 9.85
29 ==== 10.95
30 ==== 12.13
31 ==== 13.38
32 ==== 14.72
33 ==== 16.15
34 ==== 17.67
35 ==== 19.28
36 ==== 20.98
37 ==== 22.78
38 ==== 24.68
39 ==== 26.69
40 ==== 28.80
41 ==== 31.02
42 ==== 33.35
43 ==== 35.80
44 ==== 38.36
45 ==== 41.04
Fish HSB
Length, "
Stock………. 8
Quality….… 12
Preferred.. 15
Memorable 20
Trophy….… 25
Length Weight
inches lbs
6 ==== 0.10
7 ==== 0.16
8 ==== 0.24
9 ==== 0.35
10 ==== 0.49
11 ==== 0.66
12 ==== 0.87
13 ==== 1.12
14 ==== 1.41
15 ==== 1.75
16 ==== 2.15
17 ==== 2.60
18 ==== 3.11
19 ==== 3.68
20 ==== 4.32
21 ==== 5.04
22 ==== 5.83
23 ==== 6.71
24 ==== 7.66
25 ==== 8.71
26 ==== 9.85
27 ==== 11.09
28 ==== 12.43
Fish Walleye
Length, "
Stock………. 10
Quality….… 15
Preferred.. 20
Memorable 25
Trophy….… 30
Length Weight
inches lbs
7 ==== 0.11
8 ==== 0.17
9 ==== 0.25
10 ==== 0.35
11 ==== 0.47
12 ==== 0.62
13 ==== 0.79
14 ==== 1.01
15 ==== 1.25
16 ==== 1.54
17 ==== 1.87
18 ==== 2.24
19 ==== 2.66
20 ==== 3.13
21 ==== 3.65
22 ==== 4.24
23 ==== 4.88
24 ==== 5.59
25 ==== 6.36
26 ==== 7.20
27 ==== 8.12
28 ==== 9.12
29 ==== 10.20
30 ==== 11.36
31 ==== 12.60
32 ==== 13.94
If you have the data in a spreadsheet, you could format as desired, do a "save as" PDF file and then link to the PDF file on the forum. That is how my Weekly Observations graph is done.
Is this more useful? Can fix up the big fish likewise if there is interest.