Sonar estimation of summer chum and pink salmon in the Anvik river, Alaska, 2022
Data files
Sep 13, 2025 version files 10.06 KB
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2022_Anvik_River_Climate_Observations.csv
1.53 KB
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2022_Anvik_River_Pink_Salmon_Estimates.csv
1.15 KB
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2022_Anvik_River_Summer_Chum_Salmon_Estimates.csv
1.72 KB
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2022_Anvik_River_Tower_Counts.csv
1.41 KB
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2022_Anvik_River_Water_Temperature.csv
1.04 KB
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README.md
3.22 KB
Abstract
Dual-frequency identification sonar (DIDSON) was used to estimate adult summer chum salmon (Oncorhynchus keta) and pink salmon (O. gorbuscha) passage in the Anvik River from June 15 to July 26, 2022. Apportionment to species was determined from data collected from tower counts. A total of 46,436 (SE 769) summer chum and 0 pink salmon were estimated to have passed the sonar site. A beach seine sample fishery was conducted to collect age, sex, and length information; however, high water prevented fishing for part of the season. In addition, because of low salmon passage, few fish were caught, and the sample fishery was discontinued early. Both sonar systems functioned well with minimal interruptions to operation. Range of ensonification was considered adequate for most fish that migrated upstream.
Dataset DOI: 10.5061/dryad.hx3ffbgs2
Description of the data and file structure
These data were collected to investigate adult summer chum salmon (Oncorhynchus keta) and pink salmon (O. gorbuscha) passage in the Anvik River, Alaska.
Files and variables
File: 2022_Anvik_River_Climate_Observations.csv
Description: Climatic observations recorded daily at 1800 at the Anvik River sonar project site, 2022.
Variables
- Date (M/D/YYYY)
- Precipitation (code a: Precipitation code for the preceding 24-hour period: A = none; B = intermittent rain; C = continuous rain; D = snow and rain mixed; E = light snowfall; F = continuous snowfall; G = thunderstorm with or without precipitation.)
- Wind Direction (code b: Wind direction code: N = North; S = South; E = East; W = West; V = Variable; NA = Not applicable (no wind).)
- Wind Velocity (kph)
- Sky (code c: Instantaneous cloud cover code: C = clear, cloud cover < 10% of sky; S = cloud cover < 60% of sky; B = cloud cover 60–90% of sky; O = overcast (100%); F = fog, thick haze, or smoke.)
- Air temperature (degrees C)
File: 2022_Anvik_River_Pink_Salmon_Estimates.csv
Description: Pink salmon daily and cumulative passage estimates at the Anvik River sonar project, 2022.
Variables
- Date (M/D/YYYY)
- Left bank (number of fish)
- Right bank (number of fish)
- Daily total (number of fish)
- Cumulative Estimate (number of fish)
- Cumulative Proportion (of season total)
File: 2022_Anvik_River_Summer_Chum_Salmon_Estimates.csv
Description: Summer chum salmon daily and cumulative passage estimates at the Anvik River sonar project, 2022.
Variables
- Date )M/D/YYYY
- Left bank (number of fish)
- Right bank (number of fish)
- Daily total (number of fish)
- Cumulative Estimate (number of fish)
- Cumulative Proportion (of season total)
File: 2022_Anvik_River_Water_Temperature.csv
Description: Daily water temperatures on the left bank at the Anvik River sonar project, 2022.
Variables
- Date (M/D/YYYY
- Minimum (degrees C)
- Maximum (degrees C)
File: 2022_Anvik_River_Tower_Counts.csv
Description: Salmon species and proportion of summer chum salmon observed migrating upstream during tower counts by day and bank at the Anvik River sonar project, 2022.
Variables
- Date (M/D/YYYY
- Left Bank Chum (number of fish)
- Left Bank Chinook (number of fish)
- Left Bank Pink (number of fish)
- Left Bank Sockeye (number of fish)
- Left Bank Proportion chum (of daily total)
- Right Bank Chum (number of fish)
- Right Bank Chinook (number of fish)
- Right Bank Pink (number of fish)
- Right Bank Sockeye (number of fish)
- Right Bank Proportion chum (of daily total)
Access information
Other publicly accessible locations of the data:
- These data can also be found on the Alaska Department of Fish and Game Arctic–Yukon–Kuskokwim Database Management System (AYKDBMS): https://www.adfg.alaska.gov/CF_R3/external/sites/aykdbms_website/Default.aspx