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2002 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.
 | Cover by Forsberg (pdf
538K) |
| Section 1 (pp. 1-40, pdf 587K)
 | Contents
|
| IPHC research program: Review
of 2001 projects and proposals for 2002 |
|
| Section 2 - The Fishery
| Removals (pp. 41-78, pdf
692K)
 | 2002 Commercial fishery and regulation changes |
| Progress report on the examination of alternate
approaches to halibut management |
| 2002 Sport Fishery |
| Wastage in the 2002 Pacific halibut fishery |
| Estimates of personal use harvest for 2002 |
| Retention of sublegal halibut in the Area 4E
CDQ fishery: 2002 harvests |
| History of Area 2 fisheries, management and
assessments |
|
| Sampling and Analysis (pp.
79-92, pdf 489K)
| Commercial catch sampling |
| Age distribution of the commercial halibut catch
for 2002 |
|
|
| Section 3a - Population Assessment (pp.
93-172, pdf 3.3MB)
| Assessment of the Pacific halibut stock at the end
of 2002 |
| Issues and tradeoffs in the implementation of a
conditional constant catch harvest policy |
| Where are our halibut? Displaying spatial and
temporal distributions of Pacific halibut using GIS technology |
|
| Section 3b - Bycatch (pp.
173-218, pdf 748K)
| Incidental catch and mortality of Pacific halibut,
1962-2002 |
| The 2002 groundfish fishery off Alaska:
Groundfish catches, halibut bycatches, and other information |
| The Bering Sea trawl fishery Prohibited Species
Donation (PSD) program: Results from 1998-2002 |
| Pacific halibut discard mortality rates in the
1990-2001 Alaskan groundfish fisheries, with recommendations for
monitoring in 2003 |
|
| Section 4 - Biological Research
| General (pp. 219-258,
pdf 2.9MB)
| Using otolith microchemistry to determine
nursery origin: an initial test of concept |
| Planning for the future: Otolith
collections and archiving for an elemental world |
| Incidence of crystallized otoliths from the
2000 and 2001 setline surveys |
| Comparison of surface and break-and-burn ages
for paired left and right otoliths |
| Spatial and ontogenetic variability in the
trophic status of Pacific halibut: Progress report (pp.
259-284, pdf 695K) |
| Feasibility of using electronic monitoring for
assessing compliance and effectiveness of seabird avoidance devices
and monitoring seabird mortality in halibut longline
fisheries: Progress report |
| Chalky studies in 2002: Project to
understand the physiological processes associated with chalky
halibut |
|
| Tagging (pp 285-312,
pdf 761K)
| Aims of the proposed IPHC marking experiment |
| Technical review of the proposed IPHC PIT tag
marking experiment |
| IPHC staff comments on the "Technical
review of the proposed IPHC PIT tag marking experiment" |
| PIT tagging protocol for Pacific halibut: tag
placement, shedding studies, and data capture during tagging |
| PIT tag scanning investigations (pp
313-344,
pdf 1.4MB) |
| Dockside scanning studies of the use of passive
integrated transponder (PIT) tags on Pacific halibut (Hippoglossus
stenolepis): Feasibility and comparisons of PIT tag
readers |
| Tagging studies |
|
| Survey Results (pp. 345-382, pdf
1.2MB)
| 2002 Standardized stock assessment survey |
| Cruise report for the 2002 NMFS Bering Sea trawl survey |
| Prior Hook Injuries (PHI): Results from
the 2002 IPHC SSA surveys and NMFS trawl surveys |
|
| Survey Analysis (pp. 383-420, pdf
6.2MB)
| Estimates of juvenile halibut abundance and
distribution in Area 3 from NMFS trawl surveys |
| Size and age composition of Pacific halibut in
NMFS Bering Sea shelf trawl surveys |
| Pacific halibut morphometric comparisons |
|
|
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