Quick answer: Simrad EK80 is a widely used scientific echosounder platform for recording calibrated acoustic backscatter from the water column. In fisheries monitoring it’s used to log full-resolution acoustic datasets and to generate echograms and derived indicators for biomass distribution across depth and distance.
Key facts
| Feature area |
What it affects |
Why it matters |
| Scientific logging |
Traceable, detailed records |
Supports post-processing and reporting |
| Frequency configuration |
Target response differences |
Helps characterize layers and returns |
| Echogram outputs |
Visual interpretation |
Fast QC and pattern recognition |
| Indicators vs full-resolution |
Real-time vs deep analysis |
Supports both operations and science |
| Deployment context |
Vessel or USV missions |
Enables repeat transects and persistence |
What “EK80-class” means in operations
When people say “EK80-class,” they usually mean:
- A scientific-grade echosounder workflow
- Full-resolution logging intended for later analysis
- A system used in research and fisheries contexts, with established processing practices
It’s shorthand for a data pipeline that can be validated and compared.
Typical outputs you should expect
- Full-resolution acoustic files (ping-by-ping)
- Echograms for quick inspection
- Depth-binned summaries and layer statistics (when processed)
- Derived indicators (when configured for reduced telemetry)
How EK80 data is used in fisheries monitoring
Common uses include:
- Mapping scattering layers and aggregation zones
- Comparing transects across time
- Producing density indicators for operational awareness
- Building baselines (what “normal” looks like in an area)
When used on long-duration missions, teams often send indicators during the campaign (e.g., over Iridium) and keep full-resolution data for recovery-based analysis.
Practical notes for mission planning (non-brand-specific)
- Decide early: what needs to be real-time vs what can wait
- Define survey design: transects, speed targets, revisit cadence
- Ensure consistent metadata logging (position, timing, settings)
- Plan QA: calibration expectations, noise checks, data completeness
FAQ
Is EK80 the same as a fish finder?
No. EK80 is typically used as a scientific echosounder with logging and processing workflows aimed at quantitative analysis.
Do I need full-resolution logging if I only want indicators?
If you want defensible results later, yes. Indicators are summaries; full-resolution is the master record.
Does EK80 guarantee species ID?
No—species ID is not guaranteed from acoustics alone.
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