Based on staff research and discussions with industry before, during, and after the 2009 Annual Meeting, two dominant themes for apportionment were 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 - 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)
Using IPHC Widgets
Widgets are a type of graphical user interface (GUI) that can be used to display information changeable by the user, such as a window or a text box. One of the advantages of a widget is to provide a single interactive tool to manipulate data, specify data inputs, model characteristics and view results. The International Pacific Halibut Commission developed and used a widget to illustrate the effects of migration and fishing on the distribution of biomass.