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Bering
Sea-Ice Expedition
Retrieving a Bongo
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Bongos consist of 2 large (333 micrometer (µ)
mesh) nets on 60 centimeter diameter frames and 2 small (153 µ
mesh) nets on 20 cm diameter frames, a weight (70 lbs), and a
data recorder (SeaCat) located above the nets in these images.
These are all attached to a wire that is controlled from two decks
above by a winch one deck above. They are lifted from the ship's
main deck, over a rail and are lowered into the water. (sequence
of photos by E.Cokelet)
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Bongos coming up out of the water.
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Grabbing the bongo frame. Cod ends (bottom,
cylinder) hold catch/sample.
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Swinging the cod ends over the rail as the
wire is lowering the whole unit.
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Almost on deck. Guidling the seventy-pound
weight to a holder, the "donut".
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Weight, nets and frame on deck. Now, lower
the seacat unit.
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Marine tech Mike out on deck to handle the
wire.
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Finally on deck, numbers are taken from the
flowmeter at the front of each net.
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