This Brodersen_2021 Anvik River Sonar_Readme.txt file was generated on 2022-01-31 by Naomi Brodersen. GENERAL INFORMATION 1. Title of Dataset: Sonar Estimation of Summer Chum and Pink Salmon in the Anvik River, Alaska, 2021 2. Author Information A. Primary Contact Information Name: Naomi Brodersen Institution: Alaska Department of Fish and Game Address: 1300 College Rd., Fairbanks, AK 99701, USA Email: naomi.brodersen@alaska.gov B. Secondary Contact Information Name: Jody Lozori Institution: Alaska Department of Fish and Game Address: 1300 College Rd., Fairbanks, AK 99701, USA Email: jody.lozori@alaska.gov C. Alternate Contact Information Name: Carl Pfisterer Institution: Alaska Department of Fish and Game Address: 1300 College Rd., Fairbanks, AK 99701, USA Email: carl.pfisterer@alaska.gov 3. Dates of data collection: 2021-06-15 through 2021-07-26 4. Geographic location of data collection: Anvik River, Alaska, USA: 62° 44’ 208” N 160° 40’ 724” W 5. Information about funding sources that supported the collection of the data: This project was funded by the Alaska Sustainable Salmon Fund (AKSSF) project 52006, Anvik River Sonar Project – Phase 3, federal grant no. NA18NMF4380260, and the Alaska Department of Fish and Game. SHARING/ACCESS INFORMATION 1. Links to 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 DATA & FILE OVERVIEW 1. Description of dataset: These data were collected to investigate adult summer chum salmon (Oncorhynchus keta) and pink salmon (O. gorbuscha) passage in the Anvik River, Alaska. 2. File List: File 1 Name: 2021 Anvik River Climatic Observations.csv File 1 Description: Climatic observations recorded daily at 1800 at the Anvik River sonar project site, 2021. File 2 Name: 2021 Anvik River Pink Salmon Estimates.csv File 2 Description: Pink salmon daily and cumulative passage estimates at the Anvik River sonar project, 2021. File 3 Name: 2021 Anvik River Summer Chum Salmon Estimates.csv File 3 Description: Summer chum salmon daily and cumulative passage estimates at the Anvik River sonar project, 2021. File 4 Name: 2021 Anvik River Tower Counts.csv File 4 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, 2021. File 5 Name: 2021 Anvik River Water Temperature.csv File 5 Description: Daily water temperatures on the left bank at the Anvik River sonar project, 2021. METHODOLOGICAL INFORMATION 1. Description of methods used for collection/generation of data: Dual-frequency identification sonar (DIDSON) was used to estimate salmon passage. Salmon were counted by species from a tower and these data were used to apportion the sonar estimates to species. Water temperature was measured using a HOBO data logger. Air tempearature was measured using a digital thermometer. Wind speed and direction were measured using a handheld Kestrel wind meter and compass. Cloud cover and precipitation observations were subjective. DATA-SPECIFIC INFORMATION FOR: 2021 Anvik River Climatic Observations.csv 1. Number of variables: 6 2. Number of cases/rows: 39 3. Variable List: 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) 4. Missing data codes: None 5. Specialized formats or other abbreviations used: None DATA-SPECIFIC INFORMATION FOR: 2021 Anvik River Pink Salmon Estimates.csv 1. Number of variables: 0 2. Number of cases/rows: 0 3. Variable List: None 4. Missing data codes: None 5. Specialized formats or other abbreviations used: None DATA-SPECIFIC INFORMATION FOR: 2021 Anvik River Summer Chum Salmon Estimates.csv 1. Number of variables: 6 2. Number of cases/rows: 42 3. Variable List: 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) 4. Missing data codes: None 5. Specialized formats or other abbreviations used: None DATA-SPECIFIC INFORMATION FOR: 2021 Anvik River Tower Counts.csv 1. Number of variables: 9 2. Number of cases/rows: 41 3. Variable List: Date (M/D/YYYY) Left bank chum (number of fish) Left bank Chinook (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 sockeye (number of fish) Right bank proportion chum (of daily total) 4. Missing data codes: ND (no data) 5. Specialized formats or other abbreviations used: None DATA-SPECIFIC INFORMATION FOR: 2021 Anvik River Water Temperature.csv 1. Number of variables: 3 2. Number of cases/rows: 42 3. Variable List: Date (M/D/YYYY) Minimum (degrees C) Maximum (degrees C) 4. Missing data codes: None 5. Specialized formats or other abbreviations used: None