 | |
2003 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
180K) |
| Section 1 (pp. 1-30, pdf
166K)
 | Contents
|
| IPHC research program: Review
of 2003 projects and proposals for 2004 |
|
| Section 2 - The Fishery
| Removals (pp. 31-60, pdf
294K)
 | 2003 Commercial fishery and regulation changes |
| 2003 Sport Fishery |
| Wastage in the 2003 Pacific halibut fishery |
| Estimates of the 2003 personal use harvest |
| Retention of sublegal halibut in the Areas 4D/4E
CDQ fishery: 2003 harvests |
|
| Sampling and Analysis (pp.
61-96, pdf 220K)
| Report from the multi-agency and industry work
group meeting on the implications of extending the halibut season |
| Commercial catch sampling |
| Age distribution of the commercial halibut catch
for 2003 |
| The presence of swivels on snapped hook gear in
the halibut fishery |
| Whale and shark interactions with fishing for
halibut |
|
|
| Section 3a - Population Assessment (pp.
97-162, pdf 1.8MB)
| Statistical distribution of IPHC age readings |
| A method of estimation the sex composition of
commercial landings from setline survey data |
| Sources of uncertainty in annual CEY estimates (pp.
163-212, pdf 393K) |
| Assessment of the Pacific halibut stock at the end
of 2003 |
| The conditional constant catch (CCC) harvest
policy: Summary and estimated CCC yield for 2004 |
|
| Section 3b - Bycatch (pp. 213-272, pdf
803K)
| Incidental catch and mortality of Pacific halibut,
1962-2003 |
| Pacific halibut discard mortality rates in the
1990-2002 Alaskan groundfish fisheries, with recommendations for
monitoring in 2004-2006 |
| Bycatch mortality and length composition for IPHC
Areas 4A, 4B, and 4CDE from 1990-2002 |
| The Bering Sea trawl fishery Prohibited Species
Donation Program: Results from 1998-2003 |
| Bycatch mortality and size distribution
extrapolation methodology |
|
| Section 4 - Biological Research
| General I (pp. 273-322,
pdf 915MB)
| Assessing seasonal migration of adult halibut
in the Gulf of Alaska using pop-up satellite-transmitting archival
tags |
| Using halibut otolith microchemistry to
determine nursery origin: Progress report on an initial test of
concept |
| Description of a Pacific halibut chronology of
bomb radiocarbon from 1944-1981 and a validation of ageing methods |
| Suitability of glycerin-preserved otoliths for
age validation using bomb radiocarbon |
| The dual functionality of glycerin |
| Deployment of the Seacat water column profiler
in 2003 |
| The effect of prior hooking injuries on the
feeding habits of Pacific halibut |
|
| General II (pp.
323-348, pdf 459K)
| Methyl mercury and heavy metal contaminant
levels in Alaskan halibut |
| Project report: Understanding chalky halibut |
| A project to test the use of digital video for
monitoring the compliance of seabird avoidance devices and seabird
mortality in halibut longline fisheries |
| The efficacy of electronic monitoring
systems: A case study on the applicability of video
technology for fisheries management |
| Analysis of gonad staging on the IPHC setline
survey |
|
| Tagging (pp 349-394,
pdf 1.0K)
| 2003 PIT tagging: Tagging equipment and
protocol, and shedding studies |
| Portside sampling for recovered PIT tags in
Pacific halibut |
| Preliminary analysis of the IPHC PIT tagging
experiment in 2003 |
| Tagging studies |
|
| Survey results and analysis (pp.
395-446, pdf 1.9MB)
| 2003 Standardized stock assessment survey |
| Cruise report for the 2003 NMFS Bering Sea trawl survey |
| Cruise report for the 2003 NMFS Gulf of Alaska trawl survey |
| Prior Hook Injuries (PHI): Results from
the 2003 IPHC SSA surveys and NMFS Bering Sea trawl surveys |
| Results from the 2002 seabird occurrence data |
| Size and age composition of Pacific halibut in
NMFS Bering Sea shelf trawl surveys (pp. 447-476, pdf
530KB) |
| NMFS trawl survey abundance estimates,
distribution, and age composition of Pacific halibut in the Gulf of
Alaska |
| Age distribution of Pacific halibut in IPHC
stock assessment setline surveys |
|
|
[Home] [Literature]
[RARA]
For a pdf viewer, please go to the Adobe
Acrobat site
|
