7288
Bycatch characterization in the Pacific halibut fishery: A field test of electronic monitoring technology.
Bycatch characterization of North Pacific Halibut
Project
Published / External
7285
Special Projects
Project
In Work
These data arise from a field test of electronic monitoring (EM) of vessels participating in the Pacific halibut fishery off Alaska. A side-by-side comparison was made of the hook-specific catch data reocrded by fishery observers and EM video reviewers.
There are two main components of this data: the data collected by observers and the data recorded by video reviewers (electronic monitoring). The observer data are stored in an oracle database. The hook-specific EM data have been matched to the obsever data (individual hook to individual hook) and are stored in an MS Access Database.
These data were collected during normal fishing operations onboard commercial halibut vessels fishing in the Bering Sea and Gulf of Alaska. Data collection started in April 2008 and continued through September 2008.
The goal of this project was to test the ability of EM systems to operate in a commercial setting by comparing estimates of bycatch based on data collected by an observer with estimates of bycatch based on data collected using electronic monitoring (EM).
This data was collected to meet two main objectives. The first objective of this reseach were to collect catch and bycatch data collection commercial halibut fishery longline vessels using three data collection methods 1) using EM 2) using standard Alaska Fisheries Science Center Observer Program monitoring and 3) using hook-specific documentation of catch. The second objective was to evaluate the relative efficiency, cost, and bias of each of two bycatch estimation methods (EM, NMFS Observers) relative to a standard (hook-specific catch documentation) to determine their suitability for use in fisheries management.
Cahalan, J. A., B. M. Leaman, G. H. Williams, B. H. Mason, W. A. Karp. 2010. Bycatch characterization in the Pacific halibut fishery: A field test of electronic monitoring technology. North Pacific Research Board Final Report 712, 58pgs. plus Appendices.
Theme
Alaska
Theme
Electronic monitoring
Theme
Pacific halibut fishery
Theme
bycatch
Theme
fishery observer
Theme
hook and line fishery
Theme
longline fishery
Temporal
2008
Spatial
BERING SEA
Spatial
BSAI
Spatial
GOA
Spatial
GULF OF ALASKA
Alaska Fisheries Science Center
Seattle
WA
USA
FMA Division
Project
Yes
North Pacific Research Board
Observer
Federal
Electronic and Paper
Metadata Contact
2009-01-01
Person
Turnbull, Doug
doug.turnbull@noaa.gov
7600 Sandpoint Way NE
Seattle
WA
98115
USA
(206)526-4053
(206)526-4066
0700-1630
206 526 4053
Originator
2009-01-01
Person
Cahalan, Jennifer
jennifer.cahalan@noaa.gov
206 526 4185
206 526 4185
Publication Date
-180
120
62.08333333333
42
GOA Gulf of Alaska
BS Bering Sea
Discrete
2010-10
Confidential
Aggredated data may be provided with proper confidentiality doncuments to other researchers
These are confidential data and may not be made available in unaggregated form without proper confidentiality documents on file with FMA Division.
Comparison of species identification of catch between standard observer estimation, complete hook-status observer coverage, and EM coverage showed statistically unbiased and acceptable comparability for almost all species except for some that could not be identified beyond the species grouping levels used in management. Similarly, comparisons of total species-specific numbers of fish estimated using EM-collected and hook-status observer-collected data showed few statistically significant differences.
NPRB
North Pacific Research Board
7435
Data Set
AFSC/FMA/NPRB Halibut Bycatch Video Field Test
gov.noaa.nmfs.inport:7288
Doug Turnbull
2008-03-26T14:28:25
SysAdmin InPortAdmin
2023-11-30T18:11:00
2016-05-18
Alaska Fisheries Science Center
AFSC
7600 Sand Point Way N.E., Building 4
Seattle
WA
98115
USA
http://www.afsc.noaa.gov
0700-1700 Pacific Time
1001
Public
No
2016-05-18
1 Year
2017-05-18