May is gearing up to be a big month for the Indian Ocean Tuna Commission (IOTC), as members plan to hold four policy and science meetings over the next two weeks. Two of those meetings – the Technical Committee on Management Procedures (TCMP) on May 13-14 and IOTC’s annual Commission meeting on May 16-20, will be crucial to the development and adoption of the RFMO’s harvest strategy portfolio. While a variety of harvest strategies, also known as management procedures (MPs), will be discussed at the TCMP, including those for albacore, skipjack, yellowfin, and swordfish, the big-ticket item will be the bigeye tuna MP. In development since 2014, a draft proposal of a comprehensive bigeye tuna management procedure, submitted by Australia, will be reviewed by the TCMP. Next week’s Commission meeting will then have the tremendous opportunity to adopt the measure, marking IOTC’s first-ever full MP, joining the skipjack tuna harvest control rule as the Commission’s only two pre-agreed frameworks for calculating and recommending catch quotas.
The Commission now has two main decisions to make regarding management objectives and candidate MPs. The management objective for the bigeye tuna fishery includes a mandate to avoid both overfishing and an overfished state, often referred to as being in the “green zone” of the Kobe plot. Objectives should be specific and measurable in the context of management procedures, but the probability by which the final MP must achieve this objective has yet to be decided. As part of the adoption process, the Commission still has to select between a 60% and 70% probability of being in the Kobe green zone in the specified years 2034-2038, with the latter providing a stronger assurance that the MP will be successful and maintain a sustainable stock.
The Commission must also decide between the two final candidate management procedures that the Scientific Committee recommended in 2021 after rigorous management strategy evaluation (MSE) testing. The two candidates are not too different, with both operating under a 3-year management cycle and limiting the fluctuation in catch limits between management periods to 15%. One of the candidate MPs takes a “hockey stick” approach, with catch rates increasing as the population increases, up to a certain population size where the target catch rate levels out resembling a hockey stick when plotting both catch and biomass on an X/Y graph. The other candidate MP relies more on the specified management objective, using internal projections to prescribe a catch limit that can best hone in on and achieve the objective.
Both candidate MPs were able to achieve the prescribed management objective with both a 60% and 70% probability. Performance between the two differs only slightly. The hockey stick MP shows slightly higher average catches while the other has more stable catches, including potentially a higher initial catch. Regardless of which management procedure the Commission selects, they will be choosing one that performs in a robust manner and is likely to succeed.
Although bigeye is not currently overfished, overfishing is occurring, and the MP can help to ensure that fishing levels are again sustainable. This will avoid depleting the stock to a dangerously low level that would likely then require tough management decisions to recover the stock, as IOTC is currently facing for yellowfin tuna.
While a few tuna-RFMOs have a management procedure or harvest control rules in place, no tuna-RFMO has adopted a second MP for another species under its jurisdiction, let alone a full MP for any of the tropical tunas. IOTC will have that chance when Australia champions the bigeye tuna MP at the meeting later this week, and if adopted, the RFMO would position itself as a global leader of management procedures. Hopefully, the dominant bigeye fishing members will join Australia in this effort.
It’s been over a decade since ICCAT began implementing science-based quotas to help recover Atlantic bluefin, the largest of the tuna species. It now appears that the species is on the verge of locking in those gains using one of the most effective forms of management – a harvest strategy. Next week’s Panel 2 meeting, to be held on 9-10 May 2022, offers a tremendous opportunity to make progress. Finalization of the management strategy evaluation (MSE), the simulation-based modelling tool that informs harvest strategy selection, is on track for completion by the 2022 Commission meeting. While the scientific work is largely complete after eight years in development, critical management decisions remain. The scientists will rely on these decision points as they continue their work, making it imperative that this upcoming dialogue proves fruitful and yields concrete outcomes that can be immediately fed into the MSE.
Most importantly, managers will be asked to operationalize management objectives by agreeing on the risk tolerances and associated timeframes that a harvest strategy must meet. First adopted in 2018, the initial conceptual management objectives include clauses that range from concurrently avoiding overfishing and the state of being overfished to limiting the percent change in catch quotas between management periods. Now it’s time to fill in the blanks of Resolution 18-03. To ensure an abundant future for both the species and fisheries, precautionary objectives would include a high probability (e.g., ≥70%) of achieving a healthy stock and a low probability (e.g., ≤10%) of reaching a dangerously small stock size (known as Blim).
In addition to objectives, managers must approve a path forward for narrowing down the current list of candidate harvest strategies, including so-called “tuning.” Tuning levels the playing field and allows an MSE to compare apples to apples. It requires all candidate harvest strategies to achieve a common performance level for one management objective, and then relative performance against other objectives can be compared. For example, in the case of the Atlantic bluefin MSE, all candidates must achieve a certain population size in 30 years relative to the population size that can produce maximum sustainable yield. Once they are “tuned” to achieve that level, one can compare relative catches and stability in catches of the harvest strategy options. For a common population status, ICCAT might opt to cull a candidate harvest strategy that has the lowest catch, for example.
While the main decision points for next week include endorsing tuning processes and operationalizing management objectives, the meeting will also touch on other necessary discussions surrounding the harvest strategy framework and path forward.
It’s a tall order for a two-day meeting, but the scientists have done an extraordinary job updating the MSE and preparing comprehensive results for review by managers. Now, it’s up to the managers to make the necessary decisions that will allow the development process to progress, ensuring that this precedent-setting harvest strategy will be adopted for Eastern and Western Atlantic bluefin tuna at ICCAT in 2022. At a recent webinar on harvest strategies at ICCAT, 100% of participants agreed that ICCAT should prioritize the implementation of the bluefin tuna harvest strategy at its upcoming Commission meeting. ICCAT and Panel 2 must heed this call, echoed from many others, managers, scientists, and stakeholders alike, and continue development without delay.
2021 marked a significant year for the proliferation of harvest strategies across tuna regional fishery management organizations (tRFMOs). First introduced to tRFMOs with the adoption of a harvest strategy for southern bluefin tuna a decade ago, this approach is now under development or in place at every single tRFMO, including in the Atlantic, Pacific, and Indian Oceans. Harvest strategies are now being called upon across the globe to transition to science-based, precautionary frameworks to manage a breadth of species. The result is greater transparency, inclusivity, stability, and sustainability in management of these ecologically important and commercially valuable fisheries.
In a momentous step, the International Commission for the Conservation of Atlantic Tunas (ICCAT) adopted its first comprehensive harvest strategy (also known as a management procedure) for north Atlantic albacore tuna last month, which will help lock in sustainable management and predictable market supply of this stock moving forward. While ICCAT had already adopted a harvest control rule (HCR) in 2017, additional specifications were needed to convert the albacore HCR into a full harvest strategy including details on the data collection and analysis methods used to trigger the HCR, and an exceptional circumstances protocol. In November, ICCAT also set the stage for adoption of a harvest strategy for Atlantic bluefin tuna next year. The new western Atlantic bluefin measure established management for 2022 only, leaving 2023 management to be set through a harvest strategy. And, three dialogue meetings among scientists, managers, and other stakeholders are also slotted for next year, giving ICCAT members ample opportunity to provide input into bluefin harvest strategies and better understand the options before selecting a final harvest strategy at next November’s meeting.
The Western and Central Pacific Fisheries Commission (WCPFC), too, has further cemented its dedication to the development of harvest strategies for its highly valuable fishery for skipjack, bigeye, yellowfin and South Pacific albacore tunas, through the scheduling of their first scientist-manager dialogue group meeting, which was first recommended by the Scientific Committee in 2017. Slotted for August 2022, this group will provide a forum for iterative exchange between managers and scientists to develop a transparent, collective vision for the stocks and fisheries. While WCPFC failed to adopt target reference points for bigeye and yellowfin tunas, there has never been a louder call from industry to advance harvest strategies in the region, bolstered by the Marine Stewardship Council’s (MSC) June 2023 deadline to adopt harvest strategies or risk losing their ecolabel certification. Also at its annual meeting this month, WCPFC restated its commitment to adopt harvest strategies for skipjack and south Pacific albacore in 2022, which would allow MSC fisheries to retain their certifications for those stocks. While the science will likely be ready, WCPFC’s managers have a great deal of work to carry out next year to enable adoption. The long overdue dialogue meeting will be critical to that effort.
Just east of the WCPFC, the Inter-American Tropical Tuna Commission (IATTC) adopted a new tropical tuna conservation and management measure at its October meeting, which now includes a directive to establish harvest strategies, starting with bigeye tuna. IATTC is using management strategy evaluation (MSE), a computer simulation tool that projects a fishery years into the future under a range of scenarios, to develop a harvest strategy for the stock by 2024, as is noted in the newly adopted conservation measure.
In the Indian Ocean, the development of harvest strategies is far along for bigeye and yellowfin. The Indian Ocean Tuna Commission (IOTC) should be heralded for the smooth and efficient development of the scientific elements needed to develop a harvest strategy, with bigeye tuna likely ready for adoption next year following substantial progress building the bigeye MSE framework in 2021. MSE processes are also underway for albacore and swordfish. Lessons from skipjack, however, where the catch limit has been exceeded in every year since HCR adoption in 2016, underscore the importance of agreeing to a quota allocation scheme to ensure science based TACs set through harvest strategies are not exceeded.
A mere decade since the adoption of the first tRFMO harvest strategy at the Commission for the Conservation of Southern Bluefin Tuna (CCSBT), this approach has become the gold standard for management, as it ensures the future sustainability and stability of tuna fisheries, benefiting fish, fishermen, and consumers for years to come. As of 2021, all tRFMOs have concrete commitments to develop and adopt harvest strategies within a specified timeframe. Within the next few years, the tRFMOs are poised to expand from just two full harvest strategies in place to twenty adopted, and www.harveststrategies.org will be here to report on progress and provide educational resources along the way.
Helena Delgado Nordmann est responsable de l’approvisionnement durable pour le service des produits de la mer de Tesco, l’une des plus grandes chaînes de supermarchés au monde. Dans cette vidéo, elle explique les actions entreprises par les supermarchés comme Tesco pour assurer un approvisionnement en produits de la mer durables dans le monde entier. À cette fin, les détaillants réclament la mise en place immédiate de stratégies de pêche, qui sont un cadre préétabli pour la prise de décision concernant la gestion de la pêche, notamment la fixation des quotas, et un outil essentiel pour assurer la santé des stocks de poissons, et ainsi, un approvisionnement stable.
The International Commission for the Conservation of Atlantic Tunas (ICCAT) will hold its 27th Regular Meeting of the Commission on 15-23 November, the first Commission meeting since the start of the COVID-19 pandemic. Last year’s annual meeting was canceled, and all vital ICCAT business was conducted entirely over email, which made substantive decision-making nearly impossible and pushed critical negotiations to this year’s meeting. Now there is an opportunity to move forward on these important decisions, especially with regard to the development of harvest strategies (called “management procedures” by ICCAT scientists and managers). This year’s meeting can advance ICCAT’s commitment to transition to the management procedure approach by taking the following steps:
Adopt a fully specified management procedure (MP) for North Atlantic albacore. This would be a momentous step for ICCAT, as it will be the Commission’s first fully specified management procedure and only the 2nd MP for any tuna globally. In 2017, ICCAT adopted a harvest control rule (HCR) for Northern albacore, and it was successfully applied again last year to increase the catch limit for 2021 without controversy, even with the cancellation of the 2020 meeting. A transition from the HCR to a full MP will require specification of the data collection and analysis methods used to trigger the HCR, as well as an exceptional circumstances protocol. This will ensure consistent and predictable application of the harvest strategy, as well as provide guidance on how to proceed if MP implementation is not going as anticipated.
Continue advancing the Eastern and Western Atlantic bluefin tuna management strategy evaluation (MSE) by operationalizing management objectives and dedicating sufficient capacity to ensure on-schedule adoption of a full management procedure in 2022. The MSE has been underway since 2014 and is nearing completion, but multiple meetings are needed between now and MP adoption in 2022 to ensure managers and stakeholders have ample opportunity to provide feedback on the MSE. This effort starts with a dedicated pre-meeting on the bluefin MSE on the 12 November. One of the items on that agenda is operationalizing management objectives, which will allow for further refinement of the MSE and a narrowed down list of candidate MPs. Furthermore, this year’s highly uncertain stock assessment for the western population underscores the need to move toward an MSE-based management procedure for the species. As such, this assessment does not provide an adequate basis for making significant changes to the catch limit, especially since the MP will be used to set catch limits for both the western and eastern stocks starting from 2023.
Include bridging language in the new tropical tuna measure to ensure commitment to MP development, starting with Western skipjack tuna. The last couple of years have yielded significant progress on the tropical tuna MSEs, and the workplan calls for MP adoption for Western skipjack in 2023 and other tropical tunas in 2024. Including bridging language in a new proposal signifies that the MSE will be an integral and necessary component of the tropical tuna work in the coming years.
After many years of impressive work by managers and scientists alike to progress these MSEs, ICCAT has reached a pivotal point at this year’s commission meeting where precedent-setting management procedures can be adopted or set up for future adoption. This transition to management procedures will help to modernize ICCAT management, ensuring long-term sustainability, stability, and profitability of its fisheries.
On October 13-15, the International Commission for the Conservation of Atlantic Tunas (ICCAT) held three successful ‘Ambassador Webinars’ to explain and gather support for the Atlantic bluefin tuna Management Strategy Evaluation (MSE) process. Each webinar was offered in either English, French, or Spanish, providing a forum for stakeholders from across the world to have substantive discussion in their native languages. The Bluefin Tuna Ambassadors Program is an initiative that was pioneered by ICCAT’s science body, the Standing Committee on Research and Statistics (SCRS), with the goal of fostering understanding and engagement in the bluefin tuna MSE process ahead of the upcoming Panel 2 meeting on November 12th, the first in a series of dialogue meetings in the lead up to MSE completion next year. In total, over 100 participants attended from a wide range of member states.
As ICCAT gears up to adopt a long-term management procedure (also known as a harvest strategy) for Western and Eastern Atlantic bluefin tuna in 2022, dialogue and education about the development of MSE, a tool that is used to test the effectiveness of candidate management procedures, is critical. The bluefin tuna MSE process has been underway since 2014 and is nearing completion. The successful development and adoption of the bluefin tuna management procedure relies on active engagement from fishery managers and many diverse stakeholders throughout the MSE process. Therefore, a forum for parties to provide feedback and direction and request additional components to be evaluated within the MSE is essential. Each ambassador session began with a detailed presentation summarizing the MSE approach, using some of harveststrategies.org’s MSE communication slide templates, and substantive discussion followed. The chairs of the meetings noted that all participants’ suggestions would be considered as the MSE is finalized.
In addition, there has been a significant effort to familiarize and engage European stakeholders on the harvest strategy process and how an MSE-tested management procedure will affect the future management of Eastern Atlantic and Mediterranean Sea bluefin tuna. On July 19, 2021, a joint stakeholder meeting on the bluefin tuna MSE process was held by the South-Western Waters Advisory Council (SWWAC) and the Mediterranean Advisory Council (MEDAC). The meeting was attended by 45 stakeholders and included presentations from leading bluefin tuna scientists and MSE ambassadors. Along with this meeting, both SWWAC and MEDAC have hosted multiple working group meetings in April and October that included discussions on the bluefin tuna MSE. Various questions have been raised about the technicalities of the methodology, uncertainty surrounding the stock assessment, and mixing between the Eastern and Western component of the stock. The joint workshop was an important step by European stakeholders to publicize and disseminate information regarding the BFT MSE and led to a recommendation to the European Commission calling for continued consultation and collaboration as adoption of a full management procedure nears.
Certified tuna fisheries in the Western and Central Pacific Ocean (WCPO) could be suspended without urgent action by the Western and Central Pacific Fisheries Commission (WCPFC). That warning was issued by The Marine Stewardship Council (MSC) in a July 2021 announcement. Industry stakeholders in the WCPO need the WCPFC to adopt precautionary, science-based harvest strategies to maintain their certifications and meet the MSC’s certifying standards. If these standards are not met by the agreed-upon deadline, 73% of all MSC certified tuna will no longer be able to tout the MSC’s “certified sustainable seafood” ecolabel.
The MSC requires that the WCPFC implement harvest strategies, pre-agreed management frameworks for making fisheries management decisions, for albacore, skipjack, yellowfin, and bigeye tuna stocks by June 2023. The MSC has determined that harvest strategies are the most effective way to control and implement sustainable catch levels. At present moment, it does not appear that the WCPFC is on track on to meet this deadline. And, the WCPFC only has two chances left on its calendar to adopt measures: its annual meetings in December 2021 and 2022.
A unified voice calling on the WCPFC to accelerate the development of harvest strategies will be critical in allowing stakeholders to maintain their certifications and meet the MSC’s conditions. The MSC urges stakeholders to voice to the WCPFC that it must revisit its current harvest strategy workplan at the upcoming 2021 Commission meeting to help fast-track adoption for these tuna stocks in 2022. The holdup for adoption is not due to a lack of progress on the scientific work. In fact, the development of the management strategy evaluation (MSE), a tool that is to used simulate fisheries and test harvest strategies, is significantly advanced and will provide a basis for harvest strategy adoption by 2022.
If industry stakeholders work in hand with their governments and the WCPFC, harvest strategies can be adopted by the close of the 2022 WCPFC Commission Meeting. The question is: will stakeholders and managers heed this warning?
Image details: Introduction to Management Strategy Evaluation Training Course group photo – Credit: ICES, 2021
This week, the International Council for the Exploration of the Sea (ICES) is demonstrating their commitment to harvest strategy capacity building by hosting a training course, titled “Introduction to Management Strategy Evaluation” (MSE). Expert scientists in the field of MSE are instructing the course, notably Drs. José De Oliveira and Simon Fischer of the UK government’s Centre for Environment, Fisheries and Aquaculture Science (CEFAS) and Dr. Carryn de Moor of the University of Cape Town in South Africa.
The course (held 23-27 August 2021) seeks to educate interested scientists and managers about the ins-and-outs of MSE through conceptual lectures on specific elements of MSE and explorations of practical case studies. Topics include an introduction to operating models, management strategies (also known as harvest strategies or management procedures), uncertainty, risk, and communication of results. In addition to these modules, small group discussions are being held to help participants embed learnings and explore practical examples. Participants are using Excel and FLR, a fisheries library of quantitative tools that uses the coding language R, to navigate course exercises.
Management strategy evaluation is a key tool in the harvest strategy development process. Through MSE, scientists can simulate the workings of a fisheries system and test whether potential harvest strategies can achieve pre-agreed management objectives. Simulating the fishery years into the future by incorporating a breadth of operating models into the MSE framework allows scientists to determine which harvest strategy performs best over a range of potential scenarios, providing the information managers need to choose which harvest strategy to adopt. To this end, a critical element of MSE is transforming results into accessible visualizations to ensure that non-experts can interpret the outcomes of the MSE when selecting a final harvest strategy for adoption. Harveststrategies.org has developed a package of graphical tools to help scientists deliver their results clearly and concisely to managers and stakeholders.
Continued education regarding MSE and other aspects of a harvest strategy is a key ingredient to real-world implementation of the approach. Harvest strategies are a particularly effective form of management because their development incorporates input from managers throughout the entire process. Thus, familiarizing managers and other stakeholders with key concepts, as is being done at this week’s ICES workshop, ensures that all decision-makers can play a role in harvest strategy development. This continued dedication by ICES to harvest strategy and MSE instruction is integral to advancing harvest strategies towards adoption in the Northeast Atlantic and across the globe.
In light of the disruptions caused by the COVID-19 pandemic, policymakers and fishermen alike were forced to adapt to a different world, both on the water and in the negotiation room. Regardless of this challenge, the work towards the development of harvest strategies in the Western and Central Pacific Ocean (WCPO) has continued with the help of considerable support from The Pacific Community (SPC). To highlight these efforts, Scott et al. published a paper in advance of the 17thRegular Session of the Scientific Committee of the Western and Central Pacific Fisheries Commission (WCPFC), held August 11-19, 2021. The report detailed the latest in capacity building and engagement to educate managers, scientists, and stakeholders about all aspects of a harvest strategy by the SPC (WCPFC’s science provider), the WCPFC, the Pacific Islands Forum Fisheries Agency (FFA), and member states.
Most recently, SPC led educational workshops for Tuvalu, Solomon Islands, and Palau in an online format due to ongoing travel restrictions stemming from the COVID-19 pandemic. In addition, R-Shiny training tools that allow users to explore the performance of a variety of harvest strategies have been developed to promote capacity building, including introductions to harvest control rules and performance indicators, as well as more specialized decision-making tools that explore the preliminary results of management strategy evaluation (MSE) frameworks for skipjack and South Pacific albacore. An online course, hosted on the open-source learning management system Moodle, is also currently in production to offer easy access to a training course that is dedicated to harvest strategies. Funding has been provided for these projects by New Zealand.
Also noted in the report, a science-management dialogue (SMD) process has been recommended as way to continue the discussion and push harvest strategy development forward. A SMD would provide a forum for scientists, managers, and other stakeholders to have an iterative exchange on their visions for the fishery, structure of the harvest strategy, and eventually, selection of a final harvest strategy. Along with the activities noted above, the formal creation of a SMD by the WCPFC in 2021 would provide an ideal environment to progress the development of harvest strategies for the many stocks already undergoing MSE testing.
Harveststrategies.org commends the WCPFC, SPC, and New Zealand for their dedication to educate stakeholders about the harvest strategy development process, their transparency in updating interested parties in these ongoing efforts, and their impressive harnessing of technology that has allowed work to continue in this extraordinary time. This commitment to capacity building offers a great model for how both governments and RFMOs should engage their stakeholders to help build comfort with the harvest strategy approach. WCPFC members should utilize these many tools to better understand harvest strategies – both generally and in the context of specific stocks, in order to progress harvest strategy development toward adoption.
This EU-focused factsheet on the benefits of harvest strategies to European scientists, stakeholders, and managers is now available in 1 additional language: Spanish!
Estrategias de captura: la gestión pesquera del siglo XXI
Estrategias-de-captura-la-gestion-pesquera-del-siglo-XXI