How autonomous echo sounders differ from vessel-mounted systems: transducer placement, near-surface blind zones, noise, and the value of continuous monitoring.
Simrad EK80 overview: what it records, typical outputs, and how EK80 scientific echosounder data supports fisheries monitoring, indicators, and analysis
Scientific echosounder explained: what it measures, how pings become echograms and biomass indicators, and why fisheries rely on calibrated acoustic surveys.
Acoustic data in fisheries explained: raw vs indicators, echograms, metadata, and examples of how backscatter becomes fish and biomass distribution products.
Fish and biomass distribution explained: what it means, how scientific echosounders measure backscatter in the water column, and how transects become maps.
Full-resolution acoustic dataset explained: what it includes, why it supports QA and defensible reporting, and how it complements transmitted key indicators.
eDNA sampling at sea with a wind-propelled USV: persistent station visits, Iridium mission control, ~3 kn average and up to 12-month endurance to reduce crewed vessel-days and improve baselines.
USV with echosounder for persistent fisheries acoustics: ~3 kn average, up to 12-month endurance, Iridium control/telemetry, and geofenced transects that reduce crewed vessel-days.
AIS for USVs explained: visibility for nearby traffic, working with Iridium control and geofencing to support safe autonomous missions. Local rules apply; not legal advice.
AIS for USVs explained: visibility for nearby traffic, working with Iridium control and geofencing to support safe autonomous missions. Local rules apply; not legal advice.