Electronic Monitoring in the Pacific Islands Longline Fisheries Data

Electronic monitoring (EM) data are collected aboard Hawaii longline vessels (shallow- and deep-set) participating in a pre-implementation voluntary program. These data include video collected during hauling of fishing gear and sensor data collected throughout the fishing trip. Selected EM trips are reviewed for the detection of catch and bycatch species with identification performed to species or species groups. 

To determine the efficacy of EM in the Hawaii and American Samoa longline fisheries as a monitoring tool. 

FRMD DIVISION

Data are finalized after each research project is completed

All fields were adapted from the observer data set. Locations, times, species counts, and gear information is included

The user is responsible for the results of any application of this data for other than its intended purpose. No warranty expressed or implied is made regarding the accuracy utility of the data, nor shall the act of distribution constitute any such warranty. This disclaimer applies both to individual use of the data and aggregate use with other data. It is strongly recommended that careful attention be paid to the contents of the metadata file associated with the data. PIFSC shall not be held liable for improper or incorrect use of the data described or contained herein.

Aggregated data may be provided with proper confidentiality documents to other researchers

These are confidential data and may not be made available in unaggregated form without proper confidentiality documents on file with FRMD Division.

None

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CSV files and MS-Access

EM data for review are selected from shallow- or deep-set longline trips from vessels participating in the voluntary program. 

Discarded catch may remain undetected if caught and released outside the camera field of view (e.g. sharks and seabirds). Handling methods may vary between fishing crews and vessels and may result in variability in detection, especially for discarded catch. In addition, video review speed and reviewer attention or experience may bias the detection and/or identification of retained or discarded catch. 

Species detections and identifications are comparable to fisheries observer data for retained catch. However, EM currently underreports discarded catch compared to fisheries observer data. A catch handling study will begin in 2021 to improve discard detection with EM.

NCEI does not accept fisheries confidential data at this time

Data are stored in two places