Fish Inventory Site FSH0216A72
Coordinates (dec. deg.): 61.03379°, -152.14493°
Legal Description: S011N016W20
Region: South Central
Datum: NAD83
Quad Name / ITM: Tyonek A-6
AWC Stream #:
Stream Name: Unnamed
Elevation: 176 m
Site Comments: Unnamed lake outlet stream, RB trib to McArthur River. Gradient increases DS of site (including ~6-foot waterfall). Blockade Glacier valley located at stream mouth. Recently, glacier may have retreated, allowing access to previously inaccessible site.
Survey FSH02-16A72
Project Supervisor: Cecil Rich, Alaska Department of Fish and Game
— Anchorage, AK
Observers: Joe Buckwalter, Michael Anderson
Station Characteristics
| Water Temperature: 14.1° C | Conductivity: 2.0 μS/cm | Stream Stage: Medium | |||||||||
| Water Color: Clear | Turbidity: | Stream Gradient: 3.0% | |||||||||
| Qualitative Velocity: Fast | 48 hr. Precipitation/Runoff: Moderate | ||||||||||
| Substrates: Boulder, Gravel | |||||||||||
Channel Dimensions:
|
Rosgen Channel Classification: (B2) Moderately entrenched, moderate gradient, riffle dominated channel, with infrequently spaced pools. Very stable plan and profile. Stable banks. | ||||||||||
| Visit Comments: None | |||||||||||
Vegetation Classification
| Left Bank | Right Bank | ||
|---|---|---|---|
| Distance From OHW(m) |
0-5 | ||
| 5-10 | |||
| 10-20 | |||
| 20-30 | |||
Fish Sampling Effort
| Gear Type: Minnow Trap, 1/4 in. Mesh (A) | Trap Duration(h): 0 | |
| Channel Type: Main Channel (>50% of water flow) | ||
| Gear Type: Backpack Electrofisher (B) | ||
| EF Time(s): 548 | Efficiency: | |
| Channel Type: Main Channel (>50% of water flow) | ||
| Comments: + 5 observed. Dolly Varden captured in riffle pocket pools downstream of lake outlet. | ||
Fish Observations
| Species: juvenile/adult Dolly Varden | Life History: Unknown | ||
| Total Fish Observed: 7 | Fish Measured: 1 | Passage Barrier: | |
| Fork Lengths (mm) Min: 120 Max: 120 Mean: 120 | |||
| Collected/Observed by Gear Type: Backpack Electrofisher (7) | |||
| Comments: + 5 observed. Dolly Varden captured in riffle pocket pools downstream of lake outlet. | |||
| Species: juvenile/adult threespine stickleback | Life History: Resident | ||
| Total Fish Observed: 3 | Fish Measured: | Passage Barrier: | |
| Fork Lengths (mm) Min: Max: Mean: | |||
| Collected/Observed by Gear Type: Backpack Electrofisher (3) | |||
| Comments: Sticklebacks captured in large pool. | |||
| Species: no fish collected or observed | Life History: Not Applicable | ||
| Total Fish Observed: 0 | Fish Measured: | Passage Barrier: | |
| Fork Lengths (mm) Min: Max: Mean: | |||
| Collected/Observed by Gear Type: Backpack Electrofisher (0) | |||
Photos
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