 | | 1992 Report of Assessment and Research Activities
The IPHC Report of Assessment and Research Activities is a
compilation of progress reports relating to staff activities. Some of the information contained here has
changed since printing as new data is gathered and analyzed. For the most
up-to-date information, please contact the author by visiting the staff directory
for e-mail addresses or by phoning the Seattle office at (206) 634-1838.
(note: blank pages have been omitted)
 | The Fishery (pp. 1-30, pdf
1.1 MB)
 | 1992 Commercial fishery |
| Sport fishery |
| Wastage in the Pacific halibut commercial fishery |
| Commercial catch sampling |
| 1992 Estimates of personal use halibut |
|
| Stock Assessment (pp.
31-78, pdf 1.4 MB)
| Population assessment
 | Population assessment, 1992 |
| Population assessment, 1992 Technical
supplement |
| Age composition and size at age of the
commercial fishery for 1992 |
| Mapping the spatial distribution of halibut in
the Gulf of Alaska |
|
| Exploitation strategy (pp.
79-140, pdf 1.9 MB)
| CPUE and the IVQ program |
| Estimation of halibut growth and selectivity
parameters |
| Estimation of halibut maturity as a function of
length |
| Evaluation of alternative harvest rates for
Pacific halibut |
| Re-evaluation of the minimum size limit |
|
|
| Bycatch (pp. 141-226, pdf 3.1
MB)
| Byatch and Mortality
| The 1992 Alaska groundfish fishery:
Groundfish catches, halibut bycatches, and bycatch rates |
| Incidental catch and mortality of Pacific
halibut: through 1992 |
|
| Bycatch management
| Status of bycatch management planning |
| Bycatch of halibut in the trawl fishery in
Hecate Strait (Area 2B) |
|
| Research and Analysis
| Pacific halibut discard mortality rates in the
1991 groundfish fishery off Alaska |
| Re-estimation of survival for trawl caught
halibut released in different condition factors |
| 1992 Bycatch scoping: Results from staff trips
on a freezer longliner and a factory trawler |
| Comparison of Pacific halibut yield loss
produced by bycatch in the trawl, longline, and pot Pacific cod
fisheries in the Bering Sea |
|
|
| Section 4 - Biological Research (pp.
227-283, pdf 1.8 MB)
| General
| DNA analysis update |
| Pacific halibut parasite study |
| Underwater observations of interactions between
Pacific halibut and bottom trawls |
|
| Surveys
| Bering Sea and Gulf of Alaska longline survey |
| 1992 West coast trawl survey |
| Results of the NMFS Bering Sea trawl survey |
|
| Tagging studies
| Tagging studies |
| A depletion and tagging study in British
Columbia |
|
|
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