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1996 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.
 | Section 1 - Contents (pp.
1-78, pdf 3.1 MB)
 | Staff Recommendations for Research and Assessment:
1996/1997 and 1997/1998 |
| Proposed research on climate change and halibut
biology |
|
| Section 2 - The Fishery
| Removals
 | 1996 Commercial fishery and regulation changes |
| Sport fishery |
| Wastage in the Pacific halibut commercial fishery |
| 1996 Estimates of personal use halibut |
|
| Sampling and Analysis
| Commercial catch sampling |
| Age composition and size at age of the commercial
fishery for 1996 |
|
|
| Section 3 - Population Assessment (pp.
79-166, pdf 3.7 MB)
| Population assessment, 1996 |
| Population assessment, 1996 Technical
Supplement |
| Changes to stock assessment methodology: Model
documentation |
| Accounting for pre-recruit halibut bycatch
mortality through harvest rate adjustment |
| Halibut CPUE as characterized by targeting
practices |
| Evaluation of alternative harvest rates for Pacific
halibut |
|
| Section 4 - Bycatch (pp.
167-260, pdf 3.8 MB)
| Catch and Mortality
| The 1996 groundfish fishery off Alaska:
Groundfish catches, halibut bycatches, and bycatch rates |
| Incidental catch and mortality of Pacific
halibut: 1962-1996 |
|
| Bycatch management
| Status of 1996 bycatch management planning |
|
| Research and Analysis
| Pacific halibut discard mortality rates in the
1990-1996 Alaskan groundfish fisheries, with recommendations for
monitoring in 1997 |
| Compilation of halibut bycatch and mortalities,
1974-1995, for input to the population assessment |
| Results from the 1996 NMFS Observer
Questionnaires |
| A pilot program to retain halibut bycatch for
food banks |
| Components of variation in halibut bycatch by
vessels in the BSAI Pacific cod bottom-trawl fleet |
|
|
| Section 4 - Biological Research
| Surveys (pp. 261-323, pdf
2.1 MB)
| 1996 Setline grid survey |
| Distribution of halibut biomass in Areas 2A and
2B and indicated by setline surveys conducted in 1995 |
| Preliminary report of the 1996 NMFS Gulf of
Alaska triennial trawl
survey |
| Results of the 1996 NMFS Bering Sea trawl
survey |
| Survey information on distribution and trends
in abundance |
|
| Tagging studies
| Tagging studies |
| Sport tagging program |
|
|
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