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Workshop 2008
Workshop 2007

[Bycatch Workshop] [Biomass Apportionment Workshop]

Halibut Commission Bycatch Workshop

A one-day workshop on determining and incorporating the impacts of halibut bycatch mortality in non-target fisheries and mortality of sublegal fish in halibut fisheries in the assessment and management of halibut stocks was held in Seattle, WA on Tuesday, September 29, 2009. Among the topics covered at the workshop were:

Review of current and historical levels of halibut bycatch mortality
Review of historical methods by which the Commission has accounted for bycatch mortality in management of the halibut stock
Methods of estimation of bycatch mortality in non-target fisheries
Incorporation of bycatch mortality estimates and non-commercial removals in the halibut stock assessment and harvest policy
General impacts of bycatch mortality from non-target fisheries on halibut productivity and yield
Impacts of non-local bycatch mortality on fisheries yield of individual IPHC Regulatory Areas
Progress on bycatch control and management in other jurisdictions
Methods employed to reduce non-target halibut bycatch mortality in the northeast Pacific Ocean

Background reading material and Presentations

Bycatch Workshop Discussion Forum

Bycatch Workshop minutes and Staff's response to participant comments

 

Biomass Apportionment Workshop 2009

Based on staff research and discussions with industry before, during, and after the 2009 Annual Meeting, two dominant themes for apportionment are apparent: historical catch shares and survey-based (target exploitation rate) apportionment. Many harvesters support historical catch shares because they reflect their long-term production and they believe that these shares have resulted in a sustainable harvest. While staff identified numerous apportionment alternatives at BAW I in September 2008, none of these other alternatives has gained broad endorsement by industry. 

At the 2009 Annual Meeting, the Commission directed the staff to continue dialogue with industry concerning the apportionment issue, including the hook competition analysis conducted in 2008. Accordingly, the staff held an interactive two-day workshop to further examine the basis and implications of using either of the two apportionment methods. 

This was not a decision-making workshop, rather it was to explore a limited number of alternatives more thoroughly and potentially identify a superior alternative. 

Biomass Apportionment Workshop 2009 Forum

Workshop agenda

Presentations (pdf*)

Biomass Apportionment Workshop - Introduction (Leaman)
Development and performance evaluation of IPHC harvest policy (Hare)
Exploring effects of migration and fishing on the distribution of Pacific halibut (Valero)
Adjusting survey CPUE for prior removals (Webster)

 

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*For a free Acrobat [pdf] viewer, please see the Adobe site.