Hydro-acoustics laboratory on NOAA Ship MILLER FREEMAN.

Neal Williamson in Hydro-Acoustics laboratory on the NOAA Ship MILLER FREEMAN.

Trawling operations on the NOAA Ship MILLER FREEMAN. Mid-water trawl for pollock.

Trawling operations on the NOAA Ship MILLER FREEMAN Mid-water trawl for pollock.

Trawling operations on the NOAA Ship MILLER FREEMAN Cod-end on deck.

Trawling operations on the NOAA Ship MILLER FREEMAN Lifting the cod end for dumping in sorting bin.

Trawling operations on the NOAA Ship MILLER FREEMAN Beginning to dump cod end in sorting bin.

Trawling operations on the NOAA Ship MILLER FREEMAN Dumping cod end in sorting bin.

Trawling operations on the NOAA Ship MILLER FREEMAN Dumping cod end in sorting bin.

Trawling operations on the NOAA Ship MILLER FREEMAN Dumping cod end in sorting bin.

Trawling operations on the NOAA Ship MILLER FREEMAN Dumping cod end in sorting bin.

Trawling operations on the NOAA Ship MILLER FREEMAN Dumping cod end in sorting bin.

Trawling operations on the NOAA Ship MILLER FREEMAN Collecting sub-sample of pollock to dump in sorting table.

Trawling operations on the NOAA Ship MILLER FREEMAN Collecting sub-sample of pollock to dump in sorting table.

Trawling operations on the NOAA Ship MILLER FREEMAN Collecting sub-sample of pollock to dump in sorting table.

Trawling operations on the NOAA Ship MILLER FREEMAN Collecting sub-sample of pollock to dump in sorting table.

Trawling operations on the NOAA Ship MILLER FREEMAN Collecting sub-sample of pollock to dump in sorting table.

Trawling operations on the NOAA Ship MILLER FREEMAN Collecting sub-sample of pollock to dump in sorting table.

Trawling operations on the NOAA Ship MILLER FREEMAN Collecting sub-sample of pollock to dump in sorting table.

Longline fishing research on the NOAA Ship OSCAR ELTON SETTE. Deploying longline off stern.

Longline fishing research on the NOAA Ship OSCAR ELTON SETTE. Baiting longline circle hooks.

Longline fishing research on the NOAA Ship OSCAR ELTON SETTE. Baiting longline circle hooks with Pacific saury.

Longline fishing research on the NOAA Ship OSCAR ELTON SETTE. Deploying "high-flyer" at end of longline for retrieval.

Longline fishing research on the NOAA Ship OSCAR ELTON SETTE. Finding "high-flyers" for retrieval of longline.

Longline fishing research on the NOAA Ship OSCAR ELTON SETTE. Looking aft while retrieving longline on portside with captured marlin.

Longline fishing research on the NOAA Ship OSCAR ELTON SETTE. Pulling blue shark to surface during longline operations.

Longline fishing research on the NOAA Ship OSCAR ELTON SETTE. Blue shark released from longline hook.

Longline fishing research on the NOAA Ship OSCAR ELTON SETTE. Blue shark released from longline hook.

Longline fishing research on the NOAA Ship OSCAR ELTON SETTE. Longline gangions (with circle hooks) which are clipped onto longline.

Longline fishing research on the NOAA Ship OSCAR ELTON SETTE. Mahi mahi caught on longline.

Longline fishing research on the NOAA Ship OSCAR ELTON SETTE. Scientists extracting heart from mahi mahi for experimentation.

Longline fishing research on the NOAA Ship OSCAR ELTON SETTE. Scientists measuring the fork lengths of mahi mahi.

Longline fishing research on the NOAA Ship OSCAR ELTON SETTE. Longline deployment from stern.

Longline fishing research on the NOAA Ship OSCAR ELTON SETTE. Chief Scientist Mike Musyl PIFSC adjusting underwater camera.

Longline fishing research on the NOAA Ship OSCAR ELTON SETTE. Retrieving high flyer as first step in recovering longline.

Longline fishing research on the NOAA Ship OSCAR ELTON SETTE. As longline comes in, hooks are secured.

Longline fishing research on the NOAA Ship OSCAR ELTON SETTE. Testing circle hook removal tool on hooked shark.

Longline fishing research on the NOAA Ship OSCAR ELTON SETTE. Retrieving the longline.

Longline fishing research on the NOAA Ship OSCAR ELTON SETTE. Attempting to remove circle hook from large blue shark.

Longline fishing research on the NOAA Ship OSCAR ELTON SETTE. Large thresher shark released from longline.

Longline fishing research on the NOAA Ship OSCAR ELTON SETTE. Buoy with strobe to provide flotation to longline and for night avoidance and retrieval.

Longline fishing research on the NOAA Ship OSCAR ELTON SETTE. Escolar caught on longline. Normally found in deep water.

Longline fishing research on the NOAA Ship OSCAR ELTON SETTE. Attempting to remove circle hook from large blue shark.

Longline fishing research on the NOAA Ship OSCAR ELTON SETTE. Escolar on ice caught during longline operations.

Longline fishing research on the NOAA Ship OSCAR ELTON SETTE. Squid jigs for tuna. These are fished from rod and reel.

Longline fishing research on the NOAA Ship OSCAR ELTON SETTE. High flyers, buoys, and floats attached to longline.

Longline fishing research on the NOAA Ship OSCAR ELTON SETTE. Mahi mahi caught on squid jig.

Longline fishing research on the NOAA Ship OSCAR ELTON SETTE. Mahi mahi caught on squid jig.

Longline fishing research on the NOAA Ship OSCAR ELTON SETTE. Mahi mahi caught by squid jig on deck.

Longline fishing research on the NOAA Ship OSCAR ELTON SETTE. Scientist cutting out heart of mahi mahi for experimentation.