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Lake Oahe

 August 2026
Percent of the total catch for each length category (inches)
 
2025
Survey Year		 Percent
Catch		 1-6 7-8 9-10 11-12 13-15 16-20 21-25 26-30 31-35 36-40 41-45 > 45
Channel Catfish 52.7 - - 1 3 29 55 12 - - - - -
Walleye 12.1 - 1 4 32 45 14 1 3 1 - - -
Shorthead Redhorse 6.6 - 1 11 35 42 12 - - - - - -
Common Carp 4.6 - - - 2 7 3 78 10 - - - -
Freshwater Drum 4.5 - 2 4 - 53 42 - - - - - -
Goldeye 3.8 - - - 2 31 67 - - - - - -
Sauger 3.1 - - 8 28 62 2 - - - - - -
Yellow Perch 2.6 6 36 48 9 - - - - - - - -
Gizzard Shad 2.2 - - 4 7 79 11 - - - - - -
River Carpsucker 1.9 - - - - 21 38 42 - - - - -
Northern Pike 1.3 - - - - - 25 6 25 12 19 12 -
Bigmouth Buffalo 0.9 - - - - - - - 42 50 8 - -
Smallmouth Buffalo 0.9 - - - - - 9 36 55 - - - -
Black Crappie 0.8 10 10 10 - 70 - - - - - - -
Smallmouth Bass 0.5 - 14 - 14 14 57 - - - - - -
Cisco 0.5 - - - 43 29 29 - - - - - -
Shortnose Gar 0.4 - - - - - - 40 40 20 - - -
White Sucker 0.2 - - - - - 100 - - - - - -
Blue Sucker 0.2 - - - - - - - 100 - - - -
Flathead Catfish 0.2 - - - - - - 50 50 - - - -
White Bass 0.1 - - - - 100 - - - - - - -
 
 
2024
Survey Year		 Percent
Catch		 1-6 7-8 9-10 11-12 13-15 16-20 21-25 26-30 31-35 36-40 41-45 > 45
Channel Catfish 53.9 - - - 2 17 66 14 - - - - -
Walleye 11.0 1 4 24 22 29 14 2 4 - - - -
Shorthead Redhorse 8.0 - 2 14 13 46 25 - - - - - -
Freshwater Drum 5.9 - - 1 3 39 57 - - - - - -
Common Carp 4.5 2 - - - - 4 84 11 - - - -
Yellow Perch 4.0 6 69 18 8 - - - - - - - -
Goldeye 3.1 - - - 5 36 59 - - - - - -
Sauger 3.0 - - 26 34 32 8 - - - - - -
River Carpsucker 2.0 - - 4 4 16 32 44 - - - - -
Smallmouth Bass 1.3 - - - 18 47 29 6 - - - - -
Northern Pike 0.8 - - - - - 10 40 30 20 - - -
Bigmouth Buffalo 0.7 - - - - - - - 78 22 - - -
Smallmouth Buffalo 0.6 - - - - - - 43 57 - - - -
White Sucker 0.3 - - - 25 50 25 - - - - - -
Paddlefish 0.2 - - - - - - - - - 33 67 -
Black Crappie 0.2 - - 33 33 33 - - - - - - -
Gizzard Shad 0.2 - - - - 50 50 - - - - - -
Blue Sucker 0.1 - - - - - - - 100 - - - -
White Bass 0.1 - - - 100 - - - - - - - -
White Crappie 0.1 100 - - - - - - - - - - -
 
 
2023
Survey Year		 Percent
Catch		 1-6 7-8 9-10 11-12 13-15 16-20 21-25 26-30 31-35 36-40 41-45 > 45
Channel Catfish 55.4 - - 1 2 16 64 16 - - - - -
Walleye 17.3 - 16 1 21 44 12 3 2 - - - -
Shorthead Redhorse 7.2 3 - 1 19 39 39 - - - - - -
Freshwater Drum 5.0 - - - - 51 49 - - - - - -
Common Carp 4.2 - - - - - - 86 14 - - - -
Yellow Perch 1.7 5 9 73 14 - - - - - - - -
River Carpsucker 1.5 - - - - 5 25 70 - - - - -
White Bass 1.4 - 6 - 6 89 - - - - - - -
Sauger 1.3 - - 12 41 47 - - - - - - -
Bigmouth Buffalo 1.0 - - - - - - 8 77 15 - - -
Goldeye 1.0 - - 8 - 23 69 - - - - - -
Smallmouth Buffalo 1.0 - - - - 8 15 46 31 - - - -
Smallmouth Bass 0.9 - - 17 33 25 25 - - - - - -
Northern Pike 0.8 - - - - - - 10 30 30 30 - -
Black Crappie 0.2 - - 50 - 50 - - - - - - -
Flathead Catfish 0.1 - - - - - - - 100 - - - -
Lake Whitefish 0.1 - - - - - 100 - - - - - -
Paddlefish 0.1 - - - - - - - - - - 100 -
 
 
2022
Survey Year		 Percent
Catch		 1-6 7-8 9-10 11-12 13-15 16-20 21-25 26-30 31-35 36-40 41-45 > 45
Channel Catfish 45.0 - - - 1 9 68 22 1 - - - -
Freshwater Drum 11.0 - - - - 50 50 - - - - - -
Walleye 10.2 1 2 11 28 39 16 1 1 - - - -
Shorthead Redhorse 10.0 - 2 14 6 31 45 1 - - - - -
Goldeye 3.5 - - - - 32 68 - - - - - -
Common Carp 3.2 - - - - - - 89 11 - - - -
Sauger 3.1 - - 27 23 50 - - - - - - -
Yellow Perch 2.4 - 17 72 11 - - - - - - - -
Northern Pike 2.2 - - - - - 17 17 17 22 22 6 -
Smallmouth Buffalo 1.8 - - - - - 20 33 33 13 - - -
River Carpsucker 1.7 - - - - - 14 86 - - - - -
White Bass 1.2 - - 10 70 10 10 - - - - - -
Bigmouth Buffalo 1.1 - - - - - - - 78 11 11 - -
Shortnose Gar 0.8 - - - - - - 14 86 - - - -
Smallmouth Bass 0.7 - - 17 - 83 - - - - - - -
Black Crappie 0.7 - - - 50 50 - - - - - - -
Flathead Catfish 0.7 - - - - 17 33 50 - - - - -
White Sucker 0.2 - - - - - 100 - - - - - -
Cisco 0.2 - - - - 100 - - - - - - -
Lake Whitefish 0.1 - - - - - 100 - - - - - -
White Crappie 0.1 - - 100 - - - - - - - - -
 
 
2021
Survey Year		 Percent
Catch		 1-6 7-8 9-10 11-12 13-15 16-20 21-25 26-30 31-35 36-40 41-45 > 45
Channel Catfish 51.4 - - - - 10 69 20 - - - - -
Walleye 16.3 - 6 24 22 27 18 3 1 - - - -
Freshwater Drum 9.1 - - - - 53 47 - - - - - -
Yellow Perch 4.5 - 36 62 2 - - - - - - - -
Common Carp 3.8 - - - - - 8 76 16 - - - -
Sauger 3.1 - - - 29 48 23 - - - - - -
Shorthead Redhorse 2.7 7 4 - 4 41 44 - - - - - -
Goldeye 2.6 - - - - 42 58 - - - - - -
Northern Pike 1.9 - - - - - 11 37 5 16 21 11 -
Smallmouth Buffalo 1.1 - - - - - 9 55 36 - - - -
River Carpsucker 0.7 - - - - - 14 86 - - - - -
Shortnose Gar 0.7 - - - - - - 14 86 - - - -
Smallmouth Bass 0.6 - - 17 - 83 - - - - - - -
Black Crappie 0.5 - - 20 20 60 - - - - - - -
Bigmouth Buffalo 0.4 - - - - - - - 50 50 - - -
White Bass 0.4 - - 50 - 25 25 - - - - - -
Flathead Catfish 0.2 - - - - - 100 - - - - - -
White Crappie 0.1 - - - - 100 - - - - - - -
White Sucker 0.1 - - - - 100 - - - - - - -
 
 
2020
Survey Year		 Percent
Catch		 1-6 7-8 9-10 11-12 13-15 16-20 21-25 26-30 31-35 36-40 41-45 > 45
Channel Catfish 41.6 - - 1 1 12 67 18 1 - - - -
Walleye 15.7 1 6 12 24 36 17 2 1 - - - -
Freshwater Drum 8.4 - - - 4 65 31 - - - - - -
Goldeye 7.4 - - 1 9 50 40 - - - - - -
Common Carp 6.5 - - - - - 9 79 12 - - - -
Shorthead Redhorse 6.5 - - 2 19 41 38 - - - - - -
Yellow Perch 3.8 6 57 34 2 - - - - - - - -
Sauger 2.0 - - 21 25 46 8 - - - - - -
Northern Pike 1.8 - - - - 9 23 9 18 32 9 - -
Smallmouth Bass 1.6 - - 5 15 55 25 - - - - - -
White Bass 1.1 - 64 14 7 - 14 - - - - - -
Smallmouth Buffalo 0.9 - - - - - - 18 73 9 - - -
River Carpsucker 0.8 - - - - 10 10 80 - - - - -
Black Crappie 0.6 - - - 57 43 - - - - - - -
Bigmouth Buffalo 0.4 - - - - - - - 80 20 - - -
White Sucker 0.3 - - - - - 100 - - - - - -
Blue Sucker 0.2 - - - - - - - 100 - - - -
Flathead Catfish 0.1 - - - - - - 100 - - - - -
Shovelnose Sturgeon 0.1 - - - - - - - 100 - - - -
 
 
2019
Survey Year		 Percent
Catch		 1-6 7-8 9-10 11-12 13-15 16-20 21-25 26-30 31-35 36-40 41-45 > 45
Channel Catfish 37.3 - - 2 4 9 67 16 1 - - - -
Walleye 22.0 - 5 13 22 37 16 4 3 - - - -
Freshwater Drum 12.8 - - - 2 65 33 1 - - - - -
Shorthead Redhorse 6.3 1 1 5 12 42 39 - - - - - -
Goldeye 4.1 - - - 2 33 65 - - - - - -
Yellow Perch 3.2 22 24 49 4 - - - - - - - -
Sauger 2.8 - 3 3 31 54 10 - - - - - -
Common Carp 2.7 - - - - - 8 76 16 - - - -
Northern Pike 2.7 - - 3 3 - 3 26 32 24 8 3 -
River Carpsucker 2.3 - - - - 3 38 59 - - - - -
Smallmouth Bass 0.9 - - - - 83 17 - - - - - -
Black Crappie 0.8 - - - 45 55 - - - - - - -
Bigmouth Buffalo 0.5 - - - - - - - 71 29 - - -
Blue Sucker 0.4 - - - - - - 20 60 20 - - -
Smallmouth Buffalo 0.4 - - - - - 40 40 20 - - - -
Shortnose Gar 0.2 - - - - - - - 100 - - - -
White Bass 0.2 - - - - - 100 - - - - - -
White Sucker 0.1 - - - - - 100 - - - - - -
Black Bullhead 0.1 - 100 - - - - - - - - - -
Flathead Catfish 0.1 - - - - - 50 50 - - - - -
Paddlefish 0.1 - - - - - - - - - 100 - -
 
 
2018
Survey Year		 Percent
Catch		 1-6 7-8 9-10 11-12 13-15 16-20 21-25 26-30 31-35 36-40 41-45 > 45
Channel Catfish 44.9 - - - 1 12 75 12 - - - - -
Walleye 22.1 - 5 19 18 34 18 4 1 - - - -
Freshwater Drum 10.2 - - 2 2 63 32 - - - - - -
Common Carp 5.7 - 1 - - - 4 82 12 - - - -
Shorthead Redhorse 4.3 - 2 8 4 37 49 - - - - - -
Goldeye 3.3 - - - - 69 31 - - - - - -
Sauger 1.9 - - 35 4 48 13 - - - - - -
Yellow Perch 1.9 23 32 45 - - - - - - - - -
River Carpsucker 1.4 - - - - 6 47 47 - - - - -
Northern Pike 1.1 - - - - - - 38 15 23 23 - -
Smallmouth Bass 0.9 - - - 9 64 27 - - - - - -
Black Crappie 0.5 - - 17 67 17 - - - - - - -
White Bass 0.3 - - - - - 100 - - - - - -
White Sucker 0.3 - - - - - 100 - - - - - -
White Crappie 0.3 - - - 100 - - - - - - - -
Smallmouth Buffalo 0.3 - - - - - 50 - 50 - - - -
Blue Sucker 0.2 - - - - - - - 100 - - - -
Black Bullhead 0.1 - 100 - - - - - - - - - -
Cisco 0.1 - - - 100 - - - - - - - -
Green Sunfish 0.1 100 - - - - - - - - - - -
 
 
2017
Survey Year		 Percent
Catch		 1-6 7-8 9-10 11-12 13-15 16-20 21-25 26-30 31-35 36-40 41-45 > 45
Channel Catfish 51.5 - - 1 2 20 65 11 1 - - - -
Walleye 12.1 - 1 10 24 48 12 5 1 - - - -
Freshwater Drum 9.9 - - - 1 71 28 - - - - - -
Common Carp 4.4 - - - - - 15 73 13 - - - -
Goldeye 3.7 - 2 - 30 49 19 - - - - - -
Yellow Perch 3.3 - 54 44 2 - - - - - - - -
River Carpsucker 3.1 - - - - 3 46 49 3 - - - -
Northern Pike 2.6 - - - - - 9 45 30 6 6 3 -
Shorthead Redhorse 2.1 4 - 4 15 23 54 - - - - - -
White Bass 1.6 - - - 5 50 45 - - - - - -
Black Crappie 1.4 - 6 44 33 17 - - - - - - -
Smallmouth Buffalo 1.1 - - - - 14 14 36 36 - - - -
Sauger 1.0 - 8 17 42 33 - - - - - - -
Bigmouth Buffalo 0.6 - - - - - - 25 62 12 - - -
Smallmouth Bass 0.6 - - - - 38 62 - - - - - -
White Sucker 0.3 - - - - 50 50 - - - - - -
Gizzard Shad 0.2 - - - - 100 - - - - - - -
White Crappie 0.2 67 33 - - - - - - - - - -
Blue Sucker 0.2 - - - - - - - 50 50 - - -
Shortnose Gar 0.1 - - - - - - 100 - - - - -
 
 
2016
Survey Year		 Percent
Catch		 1-6 7-8 9-10 11-12 13-15 16-20 21-25 26-30 31-35 36-40 41-45 > 45
Channel Catfish 36.1 - - 1 2 18 56 20 4 - - - -
Walleye 20.4 - 1 20 17 32 25 4 - - - - -
Freshwater Drum 8.8 - - - 1 61 38 - - - - - -
Goldeye 5.4 - - 5 20 52 23 - - - - - -
Yellow Perch 5.2 2 65 30 4 - - - - - - - -
Common Carp 3.7 - - - - - 5 83 12 - - - -
Sauger 3.1 - - 12 35 47 6 - - - - - -
Shorthead Redhorse 2.9 - - 3 3 28 66 - - - - - -
White Bass 2.8 - - - 3 35 61 - - - - - -
Northern Pike 2.6 - - - - - 41 14 24 3 7 10 -
Black Crappie 2.5 - 11 - 52 33 4 - - - - - -
River Carpsucker 1.5 - - - - - 41 59 - - - - -
Shortnose Gar 1.3 - - - - - - 50 43 7 - - -
Gizzard Shad 0.9 - - - 30 70 - - - - - - -
Smallmouth Buffalo 0.9 - - - - - 50 10 40 - - - -
Smallmouth Bass 0.6 - - 43 29 14 14 - - - - - -
Bigmouth Buffalo 0.5 - - - - - - 33 33 33 - - -
Blue Sucker 0.4 - - - - - - 25 50 25 - - -
White Crappie 0.2 - - - 50 50 - - - - - - -
Longnose Sucker 0.1 - - - - - 100 - - - - - -
 
 
2015
Survey Year		 Percent
Catch		 1-6 7-8 9-10 11-12 13-15 16-20 21-25 26-30 31-35 36-40 41-45 > 45
Channel Catfish 52.5 - 1 2 2 16 60 18 1 - - - -
Walleye 13.1 - 9 5 31 19 34 1 - - - - -
Freshwater Drum 6.9 - - - 4 65 31 - - - - - -
Yellow Perch 4.8 28 61 7 4 - - - - - - - -
Shorthead Redhorse 3.9 1 1 3 9 35 50 - - - - - -
Common Carp 3.0 2 - - 4 - 4 87 4 - - - -
Black Crappie 2.9 - - 4 88 8 - - - - - - -
White Bass 2.5 - - - - 63 37 - - - - - -
River Carpsucker 2.3 - - - - 12 57 30 - - - - -
Goldeye 2.0 - - 6 20 43 31 - - - - - -
Sauger 1.4 4 - 17 38 42 - - - - - - -
Northern Pike 1.4 - - 4 8 29 25 12 12 4 4 - -
Smallmouth Buffalo 0.8 - - - - - 43 7 43 7 - - -
Bigmouth Buffalo 0.6 - - - - - - 10 50 40 - - -
Blue Sucker 0.5 - - - - - - - 100 - - - -
White Sucker 0.4 - 14 - - 14 71 - - - - - -
Smallmouth Bass 0.3 - - 20 - 20 60 - - - - - -
Shortnose Gar 0.2 - - - - - - 67 33 - - - -
White Crappie 0.2 25 - - 50 25 - - - - - - -
Flathead Catfish 0.1 - - - - - 100 - - - - - -
Black Bullhead 0.1 - - 100 - - - - - - - - -
 
 
 
 
Length of Species Sampled - All Gears Combined
** May Contain Fish Not Measured