At Annual Meeting, SPRFMO Should Chart a Course Toward Modern Harvest Strategies for Valuable South Pacific Fisheries

More than 10 years ago at a meeting of a newly constituted regional fisheries management organization, countries with fisheries interests across the south Pacific Ocean came together to adopt a harvest control rule with a goal of rebuilding jack mackerel, a small pelagic fish that had become seriously depleted.

Fast forward to today, and members of the South Pacific Regional Fisheries Management Organisation (SPRFMO), after having successfully steered the rebuilding of the jack mackerel stock, have an opportunity to further embrace precautionary and science-based management across their diverse small pelagic, squid, and bottom fisheries.

On the agenda of the annual SPRFMO meeting beginning March 2nd in Panama City will be a recommendation from an independent panel of experts, commissioned by SPRFMO, to review the organization’s performance. Notably, that panel is recommending the adoption of a harvest strategy (also called management procedure, MP) approach for all SPRFMO fisheries.

“A well-defined harvest strategy provides a framework for consistent decision-making and the application of the precautionary approach across different fisheries,” the review panel wrote in its report. “This approach would help ensure that management measures are designed with clear objectives, supported by scientific evidence, and adaptable to changing conditions. This would provide a practical framework for decision-making and goal-setting for each fishery, ensuring that the precautionary approach is constantly applied.”

SPRFMO members should heed that recommendation, thereby aligning the RFMO with others that have made the strategic choice to embrace harvest strategies to provide greater predictability and stability and to ensure the sustainability of their fisheries.

SPRFMO, which includes 17 members, manages important stocks of small pelagic fishes, squid, and bottom fishes across the south Pacific Ocean. SPRFMO is already undertaking work in relation to harvest strategies, but its efforts would receive a boost through a more strategic approach:

  • In the jack mackerel fishery, members have been developing a management procedure to replace the harvest control rule that has rebuilt the fishery, but they need to finish the job. With the technical work still in progress and political decisions still eluding the Commission, adopting clear and defined objectives in Panama City for the new MP would be a step in the right direction. They also need to issue clear tasking to their scientists to finish the development process to enable MP adoption in 2027 without further delay. Thankfully, there’s a dedicated pre-meeting workshop scheduled for February 28th that could help to secure this progress.
  • In the fishery for jumbo flying squid, which is part of the world’s largest cephalopod fishery and deemed inadequately managed by the review panel, SPRFMO scientists have a workplan anticipating development of a management procedure. Now they need clear buy-in, direction and resourcing from their managers.

For other fisheries, like orange roughy, and toothfish, a workplan could be developed to tailor workable MP approaches, given the varying levels of data, knowledge, and fishing intensity. The MP approach is not one-size fits all, and it can be applied differently depending on the resources available and priorities of the Commission.

In rebuilding jack mackerel, SPRFMO members have demonstrated that they can cooperate and make decisions with lasting benefits. Now is the time to build on the organization’s past to chart out a sustainable future through the wider endorsement of the harvest strategy approach.

(Photo by Richard Ling, licensed under CC BY-NC-ND-2.0, https://creativecommons.org/licenses/by-nc-nd/2.0/)

Sharpening the MSE Playbook: Highlights from the Global Tuna RFMO Management Strategy Evaluation (MSE) Workshop

Last week, scientists, fisheries managers, industry representatives, and policy experts from around the world met at the headquarters of the Food and Agriculture Organization (FAO) in Rome, Italy for the Global Tuna RFMO Management Strategy Evaluation (MSE) Workshop hosted by the International Commission for the Conservation of Atlantic Tunas (ICCAT) and FAO’s Common Oceans Program Tuna Project. Over three days of expert presentations and group discussions, the workshop took an in-depth look at the current state of MSE efforts across tuna RFMOs (tRFMOs), including common challenges to implementing MSE-tested management procedures (MPs), also known as harvest strategies, and how to make the MSE process more technically and procedurally effective. By the end of the meeting, participants had drafted and agreed upon a consolidated set of recommendations intended to improve the design of MSE technical frameworks, strengthen communication and trust with managers and stakeholders, and streamline timelines to implementation.

Taking stock: lessons from across tuna RFMOs

The workshop opened with a keynote presentation from the perspective of fisheries managers, highlighting common frustrations among managers with the MSE process and calling for improved communication on the part of scientists, including regarding uncertainties around results and the usage of key terminology. For example, the inconsistent use of multiple terms with the same meaning was a source of frustration to managers, such as harvest strategy versus management procedure, and performance metric versus performance indicator (PI). MP and PI were agreed as the preferred terms.

Representatives from all five t-RFMOS (Commission for the Conservation of Southern Bluefin Tuna (CCSBT), Inter-American Tropical Tuna Commission (IATTC), ICCAT, Indian Ocean Tuna Commission (IOTC), Western and Central Pacific Fisheries Commission (WCFPC)) provided regional overviews of the history, successes, and challenges of MSE efforts in their respective regions.  While institutional contexts differ, similar challenges emerged across presentations, including limitations in data quality and availability—particularly the reliance on catch-per-unit-effort (CPUE) data as key indices of abundance—along with the need for more ongoing and effective dialogue among scientists, managers, and stakeholders, greater investment in capacity building, and the inherently time- and resource-intensive nature of the MSE process.

At the same time, these sessions made clear how far MSE has come – all tRFMOs now have practical, hands-on experience with MSE and MSE-tested MPs. CCSBT has had an MP in place for its single stock, Southern bluefin tuna, since 2011. ICCAT, IOTC, and WCPFC have all adopted multiple MPs to-date, with several more in development at each. IATTC, while not yet having adopted an MSE-tested MP, established an ad hoc MSE working group in 2024 and is actively developing its first MP for bigeye tuna. It was also noted across regions that MSEs can help tRFMOs address existing management concerns such as lack of reliable stock assessments and managing stocks under changing climate conditions.

Spotlighting experience and expertise: where we’ve been and where we need to go

Presentations and discussions on capacity building, communication, stakeholder engagement, and industry perspectives all alluded to a common theme: the efficiency and success of MSE processes is determined largely at the science–management interface. Participants emphasized the importance of engaging managers and stakeholders early and often, including to establish management objectives and risk tolerances, clearly communicate key results and their implications, and focus attention on pressing decisions that need to be made. These discussions were seen as best supported through science–management dialogue (SMD) groups, which facilitate engagement, build trust, and help retain institutional memory to combat frequent staff turnover.

Many presentations showcased the timelines to adoption for existing MPs at respective RFMOs, illuminating that delays in MSE processes are often procedural rather than technical. Shifting expectations and the absence of clear, structured timelines can result in steps being revisited multiple times. Throughout discussions, participants agreed that with stronger communication and clearly defined roles, deadlines, and decision points, full MSE processes can be streamlined considerably and should take only 2-3 years to complete.

Finally, a series of methods-focused presentations addressed a range of technical considerations when building MSE frameworks, including developing multi-fishery MPs, characterizing uncertainties, treatment of observation, and considering robustness to climate change.

Guiding the way forward: collective recommendations

On the last day of the workshop, participants distilled the previous days’ discussions into a consolidated set of recommendations for improving MSE design, implementation, and communication at tRFMOs. High-level takeaways from the group’s recommendations include:

  • To clearly define and structure timelines, roles and responsibilities, and decision-making frameworks (including the use of stepwise MSE roadmaps)
  • To establish uniform terminology across all tRFMOs to ensure a shared understanding of key concepts; the group specifically recommended the usage of the terms ‘Management Procedure’ and ‘Performance Indicator’ (and we at www.HarvestStrategies.org were thus moved to add www.ManagementProcedures.org to our toolbox!)
  • To establish standing SMD groups at tRFMOs as key fora for establishing trust and promoting engagement between scientists, managers, and stakeholders; these groups should meet early, frequently, and iteratively throughout the MSE process and focus on communicating key results and the specific decisions needed from managers to move the process forward
  • To better translate complex statistical probabilities into clear, consequence-based narratives for managers (including through the use of a standardized, core suite of MSE result plots and interactive tools such as Shiny Apps, like Slick)
  • The use of pre-agreed process ‘guillotines’, existing MSE software packages, technical training sessions, and a dedicated MSE specialist at each tRFMO to improve efficiency and institutional capacity in MSE processes
  • To avoid the use of ‘shortcut’ MSEs as the primary technical foundation for selecting and adopting MPs
  • To develop and adopt exceptional circumstances protocols (ECPs) no later than one year after MP adoption
  • To include climate change-related stress tests when developing candidate MPs

Looking ahead

This workshop brought together leading experts in MSE at tuna RFMOs in a landmark exchange of experience and ideas. It provided a rare and valuable opportunity to reflect collectively on the evolution of MSE within tRFMOs, shared challenges encountered along the way, and practical ways to improve the quality, effectiveness, and efficiency of MSE processes.

The recommendations developed by participants are intended to be presented for consideration at all tRFMOs; their ultimate impact will depend on institutional willingness to consider and implement them. If put into practice, the benefits could be substantial: greater understanding of—and trust in—the MSE process among managers and stakeholders, more robust management procedures, and more predictable, sustainable outcomes for RFMO-managed stocks worldwide.

Hidden Dividends: Social and Economic Benefits of Science-Based Management Procedures (2026)

The Evolution of Fisheries Management: From Stock Assessments to Management Procedures (2025)

Mixed bag for management procedures in the Atlantic

I write this from Seville, Spain where the gavel has just dropped on the annual meeting of the International Commission for the Conservation of Atlantic Tunas (ICCAT). After a long 8 days of negotiations, we’ve ended with both high notes and disappointments for management procedure (MP) development and implementation at ICCAT.

First, the high notes:

The Commission adopted an MP for western Atlantic skipjack tuna as the first dedicated management for the stock. The effort was led by Brazil on both the science and management sides, having been initiated by the renowned Brazilian scientist, Dr. Fabio Hazin. Brazil championed the proposal in Seville, with the United States as a co-sponsor, and the final version will set future total allowable catch limits (TACs) for the stock in 3-year blocks. The results of the management strategy evaluation (MSE) were presented in www.HarvestStrategies.org’s Shiny App, Slick, for ICCAT member review and consideration when selecting the final MP. Western skipjack is a unique fishery at ICCAT as more than 90% of the catch is caught by one fleet, the Brazilian baitboat fishery. As a low bycatch handgear fishery, now with a long-term MP in place, the fishery can proudly say they’re a world leader in sustainable management.

Next, an exceptional circumstances protocol (ECP) was adopted for North Atlantic swordfish as an annex to the MP adopted last year, completing the MP. Canada’s proposal outlines the rare or unforeseen scenarios that could warrant reconsidering the application of the MP, as well as a decision tree for how to handle related deliberations on both the science and management sides. This ECP is a bit more flexible than prior ones adopted by ICCAT, largely due to this year’s experience with the exceptional circumstances review for ICCAT’s most iconic and controversial species, Atlantic bluefin tuna.

Which brings us to the hottest topic – and one of the disappointments – of ICCAT 2025:

This year marked the end of the first management cycle of the Atlantic bluefin tuna MP adopted in 2022, a huge step forward for the species that had once been the posterchild of overfishing, leading to ICCAT being called “an international disgrace” and a travesty in fisheries management.” In addition to running the adopted MP to set the western and eastern TACs for the next management cycle (2026-28), ICCAT scientists also did their standard annual check for exceptional circumstances. And that’s where things got more complicated.

New science using genetic analysis methods produced the first census estimate of the size of the western stock that spawns in the Gulf of Mexico. The scale of the western population size was one of the most influential uncertainties in the MSE, so having a point estimate represented a major step forward for bluefin science. However, ICCAT scientists could not agree on whether the new information constituted an official exceptional circumstance, as laid out by the ECP, since the new point estimate of stock biomass falls within the range considered in the original MSE. Nonetheless, ICCAT scientists did a light revision of the MSE and subsequently updated the original MP, providing two separate MPs and associated TACs to the Commission as the scientific advice – BR, the originally adopted MP, and BR*, the new revised MP.

This unfortunately opened the door to extensive negotiations here in Seville on the MP and how to implement it. After days of debate on 10 separate formal proposals, ICCAT ended by continuing to operate under the originally adopted BR MP, but with incomplete implementation. The adopted eastern measure implements the MP-based TAC (near final draft here). However, in the West, the new measure sets a TAC 20% higher than allowed under the originally adopted MP, with an extra 100 t transfer from the East to the West to use for bycatch in the vicinity of the West/East management boundary. The final TAC represents a 17% increase in the western TAC, counter to the MP.

This is not how the MP process is supposed to work. First, the ECP for Atlantic bluefin tuna is very clear. The first step is to answer the question, “Is there evidence of an exceptional circumstance?” If the answer is yes, then further investigations should be considered, such as revising the MP. But ICCAT scientists did the revision before first answering the question. This led to the scientific advice including two separate MPs with two separate sets of 2026-28 TACs, complicating Commission negotiations. Second, an MP should be implemented fully or it jeopardizes the expected performance and ability to achieve management objectives. The sanctioned 20% western overage was chosen as the highest level that can be taken in the western area without triggering an exceptional circumstance. However, prior MSE testing found that a 20% overage would cause the MP to fail to achieve the Safety management objective, resulting in a higher than agreed upon risk of breaching the limit reference point. Thankfully, there is an MP review scheduled for the next few years that provides an opportunity to get back on course with a bluefin MP that is likely to achieve Commission objectives.

The other disappointment was the inability to pass the European Union’s proposal to adopt management objectives for North and South Atlantic blue sharks. Nevertheless, there was support for the two stocks’ MSEs to start in 2026, building on progress to date, including that made at the Global Blue Shark MSE workshop that we co-hosted last month.

As the gavel drops on this year’s annual meeting, ICCAT has a lot to be proud of, with MPs adopted for 5 of its key stocks and MSEs in process for 6 additional stocks. But MPs are not just paper rules. It’s critical to not only adopt them, but also to fully implement them. To not just set the rules but to continue to stick to them, whether the MP calls for increasing or decreasing fishing. It is notable that this was the first year that an ICCAT MP called for a TAC decrease, and ICCAT didn’t implement it. As ICCAT continues to modernize and improve the efficiency and effectiveness of its management through the MP approach, members need to recommit to preventing politics and short-term catch desires from infiltrating and compromising the MSE-based MP process.

Mediterranean Secures the First International HS Adoption of 2025

At its annual meeting last week, the General Fisheries Commission for the Mediterranean (GFCM) secured the first international harvest strategy adoption of 2025. They selected a harvest control rule (HCR) for blackspot seabream in the Alboran Sea that had been tested with management strategy evaluation (MSE) and is expected to meet or exceed the Commission’s rebuilding objective. The seabream stock is critically depleted, at just 5% of its unfished level and well below the agreed limit reference point, so adoption of a long-term, science-based management plan is an important step forward.

The good news is that the most precautionary HCR was adopted (specifications in image), and it is projected to grow the stock above the limit reference point by 2030 with greater than 50% probability and achieve full recovery to the target level by 2045 with 91% probability. The bad news is that the two parties that fish the stock, Morocco and the European Union, could not agree to immediate implementation of the rule, accepting only a 56% reduction in catch for 2026 to 49.1 t rather than the 3.9 t limit dictated by the HCR. This phased-in HCR application may be ok, but it was not tested by the scientists, so it is likely that it will delay recovery and may risk the success of the measure.  Still, adoption is a positive step, and the proper implementation will be reconsidered at the 2026 annual meeting. Once properly implemented, the HCR will represent GFCM’s first-ever rebuilding plan, a momentous step for a body where more than half of the assessed fish stocks are classified as overfished.

The blackspot seabream HCR joins the GFCM’s first two HCRs adopted last year for Adriatic sardines and anchovies, showing impressive progress in harvest strategy development. Those two stocks also provided GFCM with clear evidence about the utility of this approach, as the new catch limits for 2026 followed the outputs of the HCRs and were adopted with minimal discussion. An ambitious workplan aims to advance HCRs for an additional 11 stocks over the next 2 years, but only half of those intend to include thorough MSE testing in the initial development. The three HCRs adopted to date were developed using MSE, so the potential move away from this testing at GFCM is concerning. Untested HCRs cannot be reliably expected to achieve management objectives for the stock and fishery.

Red shrimp in the Ionian Sea and Strait of Sicily, in addition to dolphinfish, are prioritized for MSE testing in 2026. Rapa whelk in the Black Sea is also on the list, but given it’s an invasive species, the environmental benefits of an MSE-tested harvest strategy are a bit more opaque. If these 4 stocks are the focus for 2026, hopefully the other 7 stocks in the MSE workplan will benefit from more robust MSE testing in 2027-28.

With its first three HCRs adopted in just 13 months, GFCM has a lot to be proud of. Going forward, the body should continue to prioritize rigorous MSE testing since MSE is central to securing many of the benefits of the harvest strategy approach. Further, GFCM should evolve toward adoption of fully specified management procedures, which include not just an HCR but also the data collection and assessment methods used to drive the HCR. This ensures consistent application of the HCR and therefore greater confidence in the expected performance.

Esther Wozniak, a senior manager for The Pew Charitable Trusts’ international fisheries program, said:

“Blackspot seabream is severely depleted and in need of immediate action. Although GFCM members adopted a precautionary, science-based approach to recover the species, they postponed its implementation and set fishing limits for 2026 that are much too high, and are based on short-term motivations rather than their newly adopted rules. This decision will delay recovery of this important fishery and may complicate future steps to implement stronger catch limits.

For several species, GFCM members have a track record of allowing years of overfishing before reaching agreement to rebuild fisheries. This has recently begun to change, which is why the decision to delay implementation on blackspot seabream is disappointing. Only continued, cooperative efforts to implement harvest strategies can guarantee the future health of all of GFCM’s valuable and ecologically important species.”

Building a Sustainable Future for Blue Sharks: Report from the Global Blue Shark MSE Workshop

In mid-October 2025, scientists from around the world gathered in Rome, Italy, for a three-day technical workshop on Global Blue Shark Management Strategy Evaluation (MSE). Hosted by The Ocean Foundation and The Pew Charitable Trusts, with key support from the FAO Common Oceans Program, Oceankind, and the Paul M. Angell Family Foundation, the event aimed to build progress toward sustainable, adaptive management procedures (MPs) for highly valuable blue shark (Prionace glauca) stocks worldwide.

The case for MSE

Blue sharks are the most commonly landed shark species in international waters and a key target for numerous fisheries, with worldwide blue shark landings estimated to be worth more than $400 million USD. However, their current management relies on stock assessments that are often hindered by data limitations and other uncertainties. Developing and implementing MSE-tested management procedures (MPs), also known as harvest strategies, that are robust to key uncertainties is therefore an important step towards ensuring responsible and adaptive management of these stocks.

The workshop on Global Blue Shark MSE was attended by leading experts in MSE and blue shark science, representing all four regional fisheries management organizations (RFMOs) that manage fisheries that catch the species: the Inter-American Tropical Tuna Commission (IATTC), the Western and Central Pacific Fisheries Commission (WCPFC), the International Commission for the Conservation of Atlantic Tunas (ICCAT), and the Indian Ocean Tuna Commission (IOTC). The workshop was timely, as both ICCAT and IOTC have begun initiatives to develop MSE-tested MPs for their respective blue shark stocks.

Setting the stage: common ground and shared challenges

The workshop kicked off with welcoming remarks from Grantly Galland (The Pew Charitable Trusts), Shana Miller (The Ocean Foundation), and Joe Zelasney (FAO), who set an inspiring tone and outlined the goals for the days ahead.  First up on the agenda were regional overviews of current blue shark science and management efforts in the Atlantic, Pacific, and Indian Oceans, provided by leading scientists from each basin. These discussions highlighted that, across regions, existing stock assessments for blue shark are often hindered by data-poor conditions and significant uncertainties (e.g., conflicting CPUE indices and unreliability in historical catch data).

With these challenges in mind, as the day progressed, the group discussed the utility and feasibility of implementing an MSE approach for blue shark management. Presentations reviewed preliminary MSE work for blue shark conducted to date at ICCAT for the North Atlantic stock and highlighted the IOTC’s request to initiate blue shark MSE efforts. Participants discussed key considerations when developing operating models (OMs) to support potential MSE efforts, including regional uncertainties that should be represented across the suite of OMs. They also touched on the types of MPs that might be most appropriate for addressing the unique management challenges and population dynamics of these widely distributed sharks, which are often co-caught with other target species. Conversations stressed the importance of involving managers and stakeholders early in MSE processes to increase transparency, collaboration, and shared motivation for the eventual adoption of an MP.

Getting hands-on

Day Two initiated dedicated, highly technical hands-on sessions. The day began with a guided demonstration of the openMSE software framework, an open-source modeling tool widely used in RFMO MSE efforts, by its creators at Blue Matter Science. Experts from Blue Matter Science guided workshop participants through the entire MSE process using openMSE, from building OMs and defining performance indicators (PIs) to designing candidate MPs and evaluating their ability to achieve management objectives via the MSE feedback loop. This demonstration provided the foundation for group breakout sessions, where participants were organized based on their region of expertise. Breakout groups worked with real data from five blue shark stocks (North/South Pacific, North/South Atlantic, Indian Ocean) to create preliminary OMs, craft custom PIs, and explore hypothetical candidate MPs using the openMSE framework.

The final day of the workshop included a presentation on standard visualization tools for presenting MSE outcomes, featuring a demonstration of the Slick app for producing figures such as timeseries and tradeoff plots to convey candidate MP performance. Regional breakout groups then reconvened to finalize their modeling efforts and create Slick objects to visualize their work. The workshop culminated in final breakout group presentations, where each region showcased their products from the last two days, including their thought processes when developing hypothetical OMs and candidate MPs for blue sharks. Groups also offered suggestions and reviewed the procedural steps that would be required for progressing these efforts at their respective RFMOs. Comprehensive modeling work and summary presentations were completed for all five global blue shark stocks.

Building blocks towards sustainable management

This workshop offered a rare and invaluable opportunity to bring together experts from across ocean basins, providing a venue to discuss shared knowledge and challenges related to effective blue shark management. While only ICCAT and IOTC have committed to date to pursuing MSE-tested MPs for blue sharks, the preliminary technical work conducted last month in Rome has laid important groundwork for all stocks across all RFMOs. This progress toward the development and adoption of sustainable management procedures marks a key milestone for the long-term sustainability of this ecologically important species around the world.

For even more information, the FAO published a news story on the workshop, and a full workshop report will be available in the coming months.

Guest Blog: A North Sea Herring Management Milestone Is on the Horizon

The EU, Norway and UK face a pivotal moment for the management of a key Northeast Atlantic forage fish

North Sea herring, a small pelagic forage fish, has long been a cornerstone of European fisheries and is vital to both the marine ecosystem and the coastal economies that depend on it. But, like other internationally-shared fisheries in the Northeast Atlantic such as those for mackerel, blue whiting and Atlanto-Scandian herring, the North Sea herring fishery also has had challenging periods in its management, including historic periods of overfishing. However, an upcoming negotiation could mark a monumental shift in how North Sea herring and other key fisheries are managed, both in terms of sustainability and with regard to their important role in the marine ecosystem.

Fisheries managers can adopt a new long-term management strategy (LTMS) for North Sea herring in two planned rounds of trilateral meetings among the European Union, Norway and the United Kingdom, scheduled in the weeks of 27 October and 17 November. This LTMS – the regional term used in the Northeast Atlantic for harvest strategy or management procedure – would include a harvest control rule (HCR) to set annual catch limits. If followed, these limits could lead to sustainable management for many years to come. The strategy would set clear benchmarks and rules for future changes in allowable catch while recognizing herring’s crucial role in the marine ecosystem. This plan would ensure that the fishery not only meets long-term human demand but also accommodates the needs of key predators such as seabirds.

State-of-the-art science backs the North Sea herring management proposal

Nearly two years of collaborative scientific work by the International Council for the Exploration of the Sea (ICES) underpins the development of a North Sea herring harvest strategy, work that has been scientifically tested using a process called management strategy evaluation (MSE). This tool tests a variety of HCRs using computer simulations to find out which ones can best achieve the desired long-term sustainability and precautionary objectives for the fishery while providing predictable and high annual catches for the fishing sector, markets and consumers.

At the request of the three negotiating Parties, an ICES Workshop on Management Strategy Evaluation for North Sea Herring convened in early 2024 to conduct an MSE to test the ability of several harvest strategies in achieving various management objectives. The MSE process covered a range of ecological scenarios and reflected key scientific and management uncertainties to help determine the best possible management approach.

The MSE tested HCRs under a plausible range of natural conditions. These incorporated biological parameters for the species based on an ecosystem model that included a spectrum of predator-prey dynamics and examined scenarios that reflect natural variability and potential environmental influences on the productivity of herring. By integrating these ecological considerations, ICES scientists provided informed evaluation and advice to the Parties on a management framework that acknowledges herring as part of a dynamic ecosystem.

A balanced harvest strategy could help secure North Sea herring’s sustainability

With several science-based options now on the table, managers need to adopt their preferred harvest strategy and use it to set a total allowable catch (TAC) limit for 2026. One of the options, known as Management Strategy 3 (MS3), has gained traction among the parties. And while it isn’t the most precautionary option available, it does offer a good balance of stock health, total allowable catch and acceptable levels of stability and risk. If implemented successfully, it would help to ensure future sustainability.

Over the summer, the Parties jointly asked ICES to reissue their annual catch advice for herring based on the particular management parameters of MS3. But the coming weeks are pivotal. By adopting this harvest strategy, including it in their publicly available Agreed Record of negotiations and using it to set their future catch limits, managers can lock in a transparent, scientific and rule-based framework that provides predictability and stability for operators in the region and takes ecological considerations into account.

But adopting the harvest strategy isn’t enough. To really succeed, the Parties should also develop what is known as an Exceptional Circumstances Protocol. This would set clear parameters for whether and when the LTMS should be re-evaluated while allowing adaptability in cases of changes on the water.

The North Sea herring MSE process shows what’s possible when scientists, managers and stakeholders work together. Now, with a clear evidence base and consensus within reach, managers have a rare opportunity to set a new management precedent and secure the future of the iconic North Sea herring fishery. They can then chart a path forward for other important Northeast Atlantic fisheries such as mackerel and Atlanto-Scandian herring.

Ashley Wilson works on The Pew Charitable Trusts’ international fisheries project.

MP & MSE 101 – eLearning course launches with FAO!

The www.HarvestStrategies.org team is thrilled to announce the launch of a new course series: “Management Procedures for Sustainable Tuna Fisheries,” developed in partnership with the FAO eLearning Academy. There are five educational modules that cover topics related to management procedures (MPs), from setting the vision for the future of the fishery with management objectives, to testing candidate MPs using management strategy evaluation (MSE), to implementation using the MP feedback loop.

The five courses include:

  1. Introduction: Provides a general overview of the MP approach and its key elements, with a particular focus on the operational component of the MP – the harvest control rule (HCR).
  2. Setting the Vision: Covers management objectives, including reference points, as well as performance indicators for use in MSE to quantify the ability of candidate MPs to achieve the agreed objectives.
  3. Management Strategy Evaluation: Covers the MP development process using MSE, including the technical components (operating models, conditioning, tuning, etc.) and the interpretation of MSE results by managers and stakeholders.
  4. Training Adventure: An animated, interactive game where users can apply their learning from the prior three courses, going through exercises to set management objectives, test candidate MPs, and select a final MP for adoption.
  5. Lessons Learned: Covers general recommendations about MP development and implementation, and presents the MPs adopted by the regional fisheries management organizations dedicated to tunas (tRFMOs) as of July 2025, with commentary about the challenges and strengths of each of the processes.

Together, the courses amount to approximately 6.5 hours of learning. Once completed, users can take a final test to earn an FAO eLearning Academy digital certification badge, which can lead to expanded employment opportunities, among other benefits.

The course is designed for a wide range of learners, including fishery managers, fishery scientists, industry professionals, environmental stakeholders, and others. It’s relevant to both tuna and general RFMOs, as well as domestic fisheries. The open-source, free-to-use content can also be used by colleges and universities for academic training. All that is needed is an FAO eLearning Academy log-in (Click here to register for free!).

While the series is currently available only in English, Spanish and French versions will be launching within the next few months.  For learners eager to apply their new knowledge to an MP development process close to home, we are pleased to offer a limited number of follow-up, customized, live sessions, tailored to the audience’s interests, either online or in-person. Please email info@harveststrategies.org to learn more!

This course has been many years in the making, and we would like to give a tremendous thank you to our project sponsors and partners, most notably the Common Oceans Tuna Fisheries Project, which is funded by GEF and implemented by FAO. The Pew Charitable Trusts and International Seafood Sustainability Foundation (ISSF) also helped with content development and review. We are also indebted to our Project Advisory Committee and a focus group of esteemed fisheries managers, scientists, and industry representatives whose review and input greatly improved the materials.

Please visit the FAO eLearning Academy to take one – or ideally, all! – of the courses to deepen your understanding of management procedures and strengthen your ability to engage meaningfully in the development and adoption process. It will help to ensure your priorities are reflected in the process, and you might even have a little fun along the way!

Stay tuned for an announcement about our next quarterly webinar, which FAO will host as the official launch of the course!

Special Considerations & Approaches for Multistock MSEs (2025)