February 5, 2019 — SEAFOOD NEWS — In an eleventh-hour breakthrough in negotiations, both Canadian and American commissioners on the International Pacific Halibut Commission found common ground on two contentious halibut issues last Friday — bycatch and apportionment — while adopting catch limits that split the difference between the two advisory bodies.

With persistently stable populations at low levels, the coastwide stock has yet to show significant signs of recruitment, or younger year classes coming into the commercial fishery. Those two dynamics: stable but relatively low stock size and little sign of recruitment, make even a one or two percent difference in quota impact both the sustainability of the resource and the economic sustainability of certain coastal areas.

U.S. Commissioner Chris Oliver, who is also the Assistant Administrator of NOAA Fisheries, told the gathering the commissioners had agreed to an F47 SPR (spawning potential ratio) which is an indication of the intensity of fishing pressure on the resource. A higher F number means a lower catch limit.

“An F47 SPR is slightly more conservative than F46,” Oliver said as he made the motion everyone had been waiting for all week.  F46 is the fishing intensity level adopted last year.

“There is a little bit greater uncertainly in the stock dynamics this year, so a slightly more precautionary approach is warranted,” Oliver said. He noted the small level of young fish from the year class 2011 and 2012 that showed up in the IPHC survey last summer. That appearance is only one data point now, not reliable enough to count on. However, if they continue to show up in 2019, 2020 and beyond, the scientists would have more certainty of recruitment size and age.

Regarding the portion of quota agreed to for Canada, Oliver said, “For 2B, we’re using a share based calculation that will put 70% emphasis on historical share and 30% on SPR value, for the three years, beginning in January 2020. For this year, Area 2B will get a 17.7% share.”

Over the years, the Canadian and U.S. commissioners have struggled with how to bridge the gap between the 20% of the coastwide total Canada received prior to a coastwide assessment and the 12.3% of the geographic coastwide range. Canada has never recognized ‘apportionment’ — a word rarely used any more — and has accommodated for that by routinely taking higher catch limits.

Discussion have ranged from applying a 50:50 or equal emphasis to the B.C. number or heavily weighting one or the other. This agreement answers the question for the next four years.

IPHC’s two advisory bodies, one representing fishermen and one representing processors, recommented total catch limits that were less than 2 million pounds apart.

In the end, the Commissioners agreed to a coastwide total mortality of 38.61 million pounds of halibut, just below last year’s take of 38.7mlbs.  The Total Constant Exploitable Yield or TCEY (all removals: commercial, recreational, wastage, etc.) by regulatory area for 2019 are listed below in millions of pounds.

2A 1.65

2B 6.83

2C 6.34

3A 13.5

3B 2.90

4A 1.94

4B 1.45

4CDE 4.00

38.61  Total TCEY

The Fishery CEY catch limits (in million pounds) are:

2A   1.50

2B   5.95

2C   4.49

3A 10.26

3B   2.33

4A   1.65

4B   1.21

4CDE   2.04

29.43   Total FCEY

These numbers pose little risk to the resource falling to trigger reference points, but they do pose a greater chance of next year’s quota being lower, and 2021’s lower still if nothing changes.

The Conference Board, the fishermen’s advisory group, recommended 39.6 million pounds of TCEY for 2019, and the Processor’s Advisory Board recommended 37.63 million pounds. Most of the Commissioners agreed total catch limits should drop this year.

The Commission and the advisory bodies also agreed that an exception should be made for Area 2A. Washington state’s treaty tribes, with support from the state and others, proposed a minimum FCEY in that area of 1.5 milion. The IPHC granted that, albiet for an interim, three-year basis.

Another big hurdle in the impasse last year, besides the portion of the halibut that goes to Canada, was accounting for all sizes of halibut bycatch in the Bering Sea.

On Friday, the Commission recommended that staff evaluate and redefine TCEY to include the under-26-inch (U26) halibut that make up part of discard mortalities, including bycatch. The intent is for each country to be responsible for counting its U26 mortalities against its collective TCEY.

The change would, for the first time, include fish that are too small to be caught in the IPHC’s setline survey or for that matter on a commercial hook. They are caught in trawls, however, and currently accounted for by weight based in large part on observer data.

But inclusion of U26 mortalities in bycatch will not further reduce the amount of halibut available for the directed halibut fleet in the Bering Sea to catch, since it is sublegal and not targeted by halibut fishermen.

This story was originally published by SeafoodNews.com, a subscription site. It is reprinted with permission.