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2006 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.
 | Contents (pp. 1-8, pdf 233KB) |
| Section 1 (pp. 9-32, pdf
278KB)
 | IPHC research program: Review
of 2006 projects and proposals for 2007 |
|
| Section 2 - The Fishery (pp. 33-80, pdf
387KB)
| Removals
 | 2006 Commercial fishery and regulation changes |
| 2006 Sport Fishery |
| Wastage in the 2006 Pacific halibut fishery |
| The personal use harvest of Pacific halibut in
2005 |
| Retention of sublegal halibut in the Areas 4D/4E
CDQ fishery: 2006 harvests |
|
| Sampling and Analysis
| Commercial catch sampling |
| Age distribution of the commercial halibut catch
for 2006 |
|
|
| Section 3a - Population Assessment (pp.
81-160, pdf 786KB)
| Motivation and plan for a coastwide stock
assessment |
| Assessment of the Pacific halibut stock at the end
of 2006 |
| Analysis of PIT tag recoveries through 2006 |
| Further investigations of low PIT recovery rates |
| 2006 harvest policy concerns |
|
| Section 3b - Incidental Catch of Halibut (pp.
161-198, pdf 346KB)
| Incidental catch and mortality of Pacific halibut,
1962-2006 |
| Pacific halibut discard mortality rates in the 2005
groundfish fisheries, and recommendations for 2007-2009 |
| The Bering Sea trawl fishery Prohibited Species
Donation Program: Results from 1998-2006 |
| Discussion paper on "regularizing" of
bycatch, sport, and subsistence catch |
| A pilot study to evaluate the use of electronic
monitoring on a Bering Sea groundfish factory trawler |
|
| Section 4 - Biological Research
| General I (pp. 199-238,
pdf 2.1 MB)
| Using otolith chemistry to
determine halibut nursery origin |
| False annuli identification in juvenile halibut
ages one to four using LA-ICP-MS |
| False annuli identification in juvenile halibut
ages one to four using marginal increment analysis |
| False annuli identification in the early years
(ages one to four) of adult Bering Sea halibut using marginal
increment analysis |
| Microsatellite variation in spawning adults of
Pacific halibut in the Gulf of Alaska and Bering Sea |
| Deployment of the Seacat water column profiler
in 2006 |
|
| General II (pp. 239-270, pdf
1.4 MB)
| Examining the behavior of rockfish and halibut
around pots |
| Homogeneity test for the Pacific sleeper shark
(Somniosus pacificus): Project update |
| Technique development for age determination of
the Pacific sleeper shark (Somniosus pacificus) |
| A one-dimensional spatial analysis of Pacific
halibut (Hippoglossus stenolepis) on longline gear: testing
for aggregation based on sex and length |
|
| Tagging (pp 271-334,
pdf 1.2 MB)
| Tagging studies |
| Portside sampling for recovered PIT tags in
Pacific halibut |
| Using Pop-up Archival Transmitting (PAT) tags
to study seasonal migration timing and summer homing rates in the Gulf of Alaska |
| Using Pop-up Archival Transmitting (PAT) tags
to assess early-season dispersion of halibut in Areas 2A and 2B |
| Assessing seasonal migration and putative
spawning location of adult Pacific
halibut in the southeast Bering Sea using Pop-up Archival Transmitting
(PAT) tags |
| Use of archival tags to study migration and
behavior of male and pre-recruit Pacific halibut (Hippoglossus
stenolepis): phase I, development of surgical techniques |
|
| Survey (pp. 335-398, pdf
1.4 MB)
| 2006 Standardized stock assessment survey |
| Prior Hook Injuries: Results from
the 2006 IPHC SSA and NMFS surveys |
| Age distribution of Pacific halibut in the 2006
IPHC
stock assessment setline surveys |
| Cruise report for the 2006 NMFS Bering Sea trawl survey |
| Size and age composition of Pacific halibut in
NMFS Bering Sea shelf trawl surveys |
|
|
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