Quota
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The trawl console needs landscape.
Turn your phone sideways to take the watch.
Good morning, Ensign. Welcome aboard.
We're running an acoustic-trawl survey for pollock. To control the net for our midwater trawl, use the EK-80 echosounder system to locate and capture fish.
The echsounder will show you what is directly below Oscar Dyson.
Familiarize yourself with the trends you are likely to see.
SS1: a thin, scattered speckle of adults throughout the water column. There are fish to be caught, but it can take a while to fill the cod-end!
SS2: tall bright ribbons of juveniles between 2-3 years old; drop the net on those and the net fills fast.
SS3: clear water. Keep searching.
Fly the net on the warp: pay out wire to sink it, haul in to raise it. Tow speed only trims the depth — and decides how quickly the marks come at you.
The science team needs a quota pollock — no more. You'll have no counter on the codend, Ensign: Call HAUL BACK when you reckon you're on the number. Closest without going over wins; go over and the tow is void.
Keep the footrope off the bottom — plough the seabed and you'll part the gear, and the tow is lost with it.
Good hunting.
Set the net's depth mainly with the warp — pay out wire to lower it, haul in to raise it using the up/down arrows. Change Tow speed with left/right to adjust scroll speed and trim the net. The gear is heavy and answers slowly — plan ahead.
There is no catch counter. Judge your haul from the backscatter you work and the feel of the cod-end, then hit HAUL BACK. Closest to quota without going over wins.
Your best read on the bag is the brass WARP STRAIN gauge — the weight of fish drags on the wire, so the needle climbs into the amber and red as the cod-end loads up.
You dragged the footrope through the seabed one too many times.
Outstanding tow, Ensign.
You brought the full quota over the gate without parting the gear.
The science team has their sample and we can get back on transit. That's exactly how it's done — clean, efficient, and on target.