Otter (midwater) Trawl

Station: Otter Trawl / L.A. Harbor
Date: 12/02/17, 11:07 am
Conditions: 73°F, sunny, winds NNE 2 mph

Start: 33° 44' 47'' N, 118° 12' 55'' W
End: 33° 44' 22'' N 118° 13' 30'' W
 

Flora & Fauna:
Common Name Scientific Name Total Captured Method
of Take
Disposition
Fish - White Croaker Genyonemus lineatus 40 otter trawl released
Fish - Queenfish Seriphus politus 20 otter trawl released
Shrimp - Target Shrimp unknown 10 otter trawl released
Fish - California Lizardfish Synodus luciocepsis 7 otter trawl released
Crustacean - Crabs unknown 6 otter trawl released
Crustacean - Swimming Crabs Portunus xantusii 4 otter trawl released
Flatfish - Tonguefish Symphurus atricaudus 2 otter trawl released
Ray - Bat Ray Myliobatis californica  2 otter trawl released
Flatfish - California Halibut Paralichthys californicus 1 otter trawl released
Flatfish - Hornyhead Turbot Pleuronichthys verticalis 1 otter trawl released
Octopus -  California two-spot Octopus bimaculoides 1 otter trawl released
Ray - Round Stingray Urolophus halleri 1 otter trawl released
Skate - Shovelnose Guitarfish Rhinobatos productus 1 otter trawl released


We use a method called "Otter Trawling" or Midwater Trawling to collect pelagic (swimming) organisms. "Otter" refers to the rectangular boards on the net. Hydrodynamic forces act on the boards, keeping them apart and the net open.


All organisms were returned to the ocean.