Alaska Fish Counts

History Chart Dashboard

About

Overview of this page and how to use the controls below.

DATA DISCLAIMER: Alaska Fish Counts App (AlaskaFishCounts.com) presents ADF&G monitoring data for EDUCATIONAL AND INFORMATIONAL PURPOSES ONLY โ€” not for fishing, navigation, or regulatory decisions. Current-season data is PRELIMINARY and SUBJECT TO REVISION. No warranty of accuracy or completeness. Verify regulations via official ADF&G emergency orders. Not affiliated with or endorsed by ADF&G. Full disclaimer.

Click to select from ADF&G top locations

Data Selection (Location, Species, Year)
No selection

Click to open dropdown and select location

Click to open dropdown and select species

Click to open dropdown and select years

Modifiers

Optional filters that modify which years are displayed.

Quick year selection patterns

Year Patterns Guide

History Viewer > Year Selection Patterns

What are Year Patterns?

Year Patterns help you quickly select specific years based on mathematical patterns, species behavior, or data-driven analysis. These patterns make it easy to identify trends, cycles, and anomalies in fish count data.

๐Ÿ“… Standard Ranges

  • This Year: Current year only
  • Last Year: Previous year
  • Last 3/5/10 Years: Recent trends for short to medium-term analysis
  • All Years: Complete historical dataset

๐ŸŸ Species Patterns (Data-Driven)

  • Pink Salmon Years: Even-numbered years (pink salmon have a 2-year life cycle)
  • King Salmon Years: Top 50% of years by total escapement count
  • High Escapement Years: Top 25% of years by total count
  • Low Escapement Years: Bottom 25% of years by total count

Note: These patterns analyze actual fish count data for the selected location and species.

๐Ÿ“Š Utility Patterns (Mathematical)

  • Every 5th Year: Selects years divisible by 5 (2025, 2020, 2015, etc.) for long-term cycle analysis
  • All Odd Years: Years ending in 1, 3, 5, 7, 9
  • All Even Years: Years ending in 0, 2, 4, 6, 8
  • Decade Years: Years ending in 0 (2020, 2010, 2000, etc.) for decade-by-decade comparison
  • Every 10th Year: Selects every 10th year from most recent for very long-term trend analysis
  • Alternating Years: Every other year starting from most recent (2025, 2023, 2021, etc.)

๐Ÿ† Record Years (Data-Driven)

  • Record High Years: Years with the highest total escapement counts in the dataset
  • Record Low Years: Years with the lowest total escapement counts in the dataset

Note: These patterns identify extreme years based on actual fish count data.

โฐ Run Timing

  • Early Run Years: Years with peak runs in May-June
  • Late Run Years: Years with peak runs in July-August

Note: Currently uses mathematical patterns; will be enhanced with actual run timing data.

How It Works

  1. Select a location and species from the controls above
  2. Click the "Year Patterns" dropdown menu
  3. Choose a pattern that matches your analysis needs
  4. The chart will automatically update to show only the selected years
  5. Your location and species selections remain unchanged

Export Chart

Chart Controls (Line, Style, Color)
VIEW MODE & PRESETS
Core Views
Line & Style
Labels & Goals
Colors & Presentation
VIEW MODE
CHART TYPE
OPTIONS
LINE OPTIONS

Line Options

Variable Year Thickness
Alternating Year Pattern
Hover Highlight Effect
Line Animation
Data Point Markers
Per-Year Colors
Same Species Colors
COLORS
Per-Year Colors

Different color per year

Same Species Colors

Same color per species

Generates up to 150 shades for all species

ACTIONS
Layer Toggle (Species, Decade)
No selection
Export chart
Data Sources

Live ADF&G JSON Data for Current Chart

Direct links to ADF&G JSON data for the years and species currently displayed on the chart:

Data Sources

ADF&G Sport Fish Counts monitors recreational fishery escapement at Southcentral Alaska locations. Data is updated during the season and provides real-time fish passage counts from sonar and weirs.

Open ADF&G Sport Fish Counts

ADF&G Commercial Fish Counts tracks statewide escapement for commercial fisheries. Covers escapement monitoring sites across Alaska with historical data back to 1965.

Open ADF&G Commercial Fish Counts

CDN (Content Delivery Network) hosts Alaska Fish Counts data for fast, global access. This app loads fish count JSON from our data.alaskafishcounts.com CDN, which mirrors the public datasets.

Open Alaska Fish Counts Data

ORG (Original) is the official ADF&G Fish Counts portalโ€”the authoritative source for sport fish escapement data. All counts originate from ADF&G monitoring programs.

Open ADF&G Fish Counts (Original)