DOI: 10.5061/dryad.hx3ffbgs2
title: Sonar estimation of summer chum and pink salmon in the Anvik river, Alaska, 2022

description: 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.
description: # Sonar estimation of summer chum and pink salmon in the Anvik river,
 Alaska, 2022 Dataset DOI:
 [10.5061/dryad.hx3ffbgs2](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 &lt; 10% of sky; S = cloud cover &lt; 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](https://www.adfg.alaska.gov/CF_R3/external/sites/aykdbms_website/Default.aspx)