1995 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 or by phoning the Seattle office at (206) 634-1838.

  • Section 1 - Contents (pp. 1-62, pdf 2.2 MB)
    • Staff Recommendations for Research and Assessment: 1995/1996 and 1996/1997
  • Section 2 - The Fishery
    • Removals
      • 1995 Commercial fishery and regulation changes
      • Sport fishery
      • Wastage in the Pacific halibut commercial fishery
      • 1995 Estimates of personal use halibut
    • Sampling and Analysis
      • Commercial catch sampling
      • Age composition and size at age of the commercial fishery for 1995
      • Long-term changes in halibut size at age
  • Section 3 - Population Assessment (pp. 63-118, pdf 1.7 MB)
    • Changes to stock assessment methodology
    • Population assessment, 1995
    • A catch-age model with size selective mortality: Documentation
  • Section 4 - Bycatch (pp. 119-172, pdf 3.8 MB)
    • Catch and Mortality 
      • The 1995 groundfish fishery off Alaska: Groundfish catches, halibut bycatches, and bycatch rates
      • Incidental catch and mortality of Pacific halibut: 1962-1995
      • SQL bycatch database, domestic groundfish fishery, 1990-1994
    • Bycatch management
      • Status of bycatch management planning
      • Summary of observer data collected during the halibut (Hippoglossus stenolepis) bycatch study in British Columbia, Jan.-Sep. 1995
      • Information on the Bering Sea/Aleutian sablefish fishery and halibut bycatch during winter months
      • Sampling halibut bycatch in the domestic groundfish fisheries
    • Research and Analysis (pp. 173-218, pdf 1.9 MB)
      • Pacific halibut discard mortality rates in the 1994 Alaskan groundfish fisheries, with recommendations for monitoring in 1996
      • Cruise report: Results from the 1995 trawl tagging charter investigating mortality of discarded Pacific halibut
      • Halibut discard mortality rates in the 1995 BSA Pacific cod hook & line fishery: Results from in-season data analysis
      • A bycatch compensation model incorporating downstream migration of juvenile halibut
      • Review of the Canadian bycatch reduction program for Pacific halibut
      • Summary of data collection from NMFS observer questionnaires in 1995
  • Section 4 - Biological Research (pp. 219-286, pdf 2.3 MB)
    • General
      • A progress report on the study of parasites of Pacific halibut 
    • Surveys 
      • 1995 Area 2B setline grid survey
      • 1995 Area 3A setline grid survey
      • Evolution of the Area 3 survey grid design
      • 1995 Setline survey in southern Area 2
      • Design of the 1995 setline survey in southern Area 2
      • Results of the 1994 NMFS Bering Sea trawl survey
    • Tagging studies
      • Tagging studies
      • Sport tagging program

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