Saving Seafood

13 Environmental NGO’s Call For 100% Observer Coverage on Industrial Tuna Fishing Vessels

June 27, 2019 — SEAFOOD NEWS — A total of 13 environmental NGO’s – including Fishwise, International Seafood Sustainability Foundation (ISSF), Monterey Bay Aquarium, PEW Charitable Trusts and Sustainable Fisheries Partnership – are joining forces to request that Regional Fisheries Management Organizations (RFMO) that regulate tuna fishing in the Indian, Pacific, Atlantic and Southern Oceans, require observer coverage on all industrial tuna fishing vessels.

According to these NGOs, many tuna fisheries lack independent monitoring of fishing activity. This means that illegal fishing, misreported or unreported catch, as well as bycatch of endangered, threatened and protected species, goes unseen. However, RFMOs could change that by requiring that these tuna fisheries have 100% observer coverage – whether it be human or electric.

“100% observer coverage can and must happen soon,” reads a press release from the organizations. “There are no longer credible reasons to delay. We are committed to working together to make 100% observer coverage a reality.”

As part of their effort, the NGOs are seeking support from fisheries organizations, conservation organizations, and foundations. Consumers can also join the fight by signing a petition posted on The Action Network.

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

ISSF: How Can Tropical Tuna Purse-Seine Fisheries Become MSC Certified?

April 19, 2018 — WASHINGTON — The following was released by the International Seafood Sustainability Foundation:

The International Seafood Sustainability Foundation (ISSF) has published a comprehensive report of recommendations, with an emphasis on fish aggregating device (FAD) usage, for purse-seine fisheries pursuing Marine Stewardship Council (MSC) certification. ISSF 2018-05: Recommended Best Practices for Tropical Tuna Purse Seine Fisheries in Transition to MSC Certification, with Emphasis on FADs is based on MSC fishery-certification requirements and organized by MSC scoring indicators. It is intended as a practical resource for purse-seine fisheries entering into Fishery Improvement Projects (FIPs) to address problems, close gaps, and earn MSC certification.

The report summarizes science-based best practices for tropical tuna purse-seine fisheries with a FAD component — that is, with a portion of their sets on FAD-associated schools of tuna. Many of the practices also apply to purse-seine fishing on free-swimming tuna schools.

MSC Certification, Purse-Seine Fisheries, and FIPS

Approximately 65% of the world’s tuna is harvested from purse-seine fisheries, which have been challenged in receiving MSC certification as compared to other species fisheries. Only certain components of some purse-seine fisheries — the free-swimming school, anchored FAD, and dolphin-associated components — have been certified by MSC to date.

Helping all tuna fisheries to be sustainable and meet MSC certification standards — without conditions — is ISSF’s ultimate objective. Since FIPs are instrumental in that process, ISSF’s new five-year strategic plan, Advancing Sustainable Tuna Fisheries,emphasizes tools and resources, along with scientific expertise and RFMO advocacy, to support those improvement projects.

More than 30 tuna FIPs are active worldwide today, and many retailers and food-service providers are committed to FIPs in their seafood sourcing guidelines.

Best Practices in FAD Fishing

In Recommended Best Practices, ISSF marine scientists Ana Justel-Rubio and Dr. Victor Restrepo — who also sits on MSC’s Technical Advisory Board — reference requirements from Regional Fisheries Management Organizations (RFMOs) and present best practices gleaned from ISSF at-sea research, skippers workshops, and other resources.

Regarding FAD use, they identify several best practices for vessels operating in a tuna purse-seine fishery seeking certification, including:

  • Comply with flag state and RFMO reporting requirements for fisheries statistics by set type
  • Voluntarily report additional data on FADs for use by RFMO science bodies
  • Support science-based limits on the overall number of FADs used and/or FAD sets
  • Use non-entangling FADs only, and promote the use of biodegradable FADs
  • Develop a FAD recovery policy, including arrangements to alert coastal countries of derelict FADs that may impact sensitive areas
  • For silky sharks (the main bycatch species in FAD sets), implement further mitigation efforts
Recommendations to Increase MSC Scores
In addition to best practices for FAD use, the report recommends strategies for fisheries to:
  •  Promote RFMO adoption of stock management measures that address all fishing gears
  •  Increase research and monitoring capabilities
  •  Improve overall compliance with RFMO requirements, including reporting of data needed for stock assessment

An appendix lists all MSC performance indicators (PIs) for each MSC Principle — Sustainable Fish Stocks (P1), Minimizing Environmental Impact (P2), and Effective Management (P3) — and their component scoring issues (SIs), identifying actions that will lead to passing scores of 80 or higher.

 

ISSF Report Analyzes Purse Seine Tuna Fishing Impacts on Sharks, Rays, and Other Species

November 28, 2017 — The following was released by the International Seafood Sustainability Foundation:

Using data from Regional Fisheries Management Organizations (RFMOs), scientific observer programs, and its own at-sea research and skippers workshops, the International Seafood Sustainability Foundation (ISSF) has published an updated report that documents purse-seine tuna fishing’s impact on “non-target” species. The bycatch species covered in the report are sharks, whale sharks, rays, finfish, sea turtles, and billfish. While they are not bycatch species, the report also touches upon catches of undesirably small bigeye and yellowfin tunas.

Organized by species and including graphics and a full bibliography, “ISSF 2017-06: A Summary of Bycatch Issues and ISSF Mitigation Activities to Date in Purse Seine Fisheries, with Emphasis on FADs”:

  • Identifies issues of concern for each species
  • Summarizes the effectiveness of different bycatch-mitigation practices — at different stages of fishing operations — for either avoiding non-target species or reducing their mortality when caught
  • Describes ongoing ISSF bycatch research activities
  • Lists existing RFMO measures for minimizing bycatch

“A Summary of Bycatch Issues” is intended to be a useful reference for fishers and tuna companies, scientists, regional fisheries management organizations (RFMOs), government agencies, nongovernment organizations (NGOs) including conservation groups, and others interested in helping fisheries to be more sustainable.

Report Data and Insights Can Guide Conservation Efforts
The November 2017 report, authored by ISSF staff and collaborating scientists Victor Restrepo, Laurent Dagorn, David Itano, Ana Justel-Rubio, Fabien Forget, and Gala Moreno, is an update of a 2014 publication.

Not all non-target species are equally vulnerable to becoming bycatch in purse-seine fisheries, and bycatch rates for a single species can vary across oceans. For some species, other fishing methods have higher bycatch than purse-seine fishing. Here are some key findings in the report:

  • SHARKS: 90% of sharks that become entangled in FAD nets in purse-seine fisheries are silky sharks (Carcharhinus falciformis); the oceanic whitetip shark ( longimanus) is another bycatch species. By avoiding setting on small schools of tuna (e.g. < 10 tons) around FADs, fishers could significantly reduce their catches of silky sharks by 20% to 40%, depending on the ocean.
  • WHALE SHARKS: Whale shark (Rhyncodon typus) interaction rates with purse seiners are very low: The Western and Central Pacific Fisheries Commission (WCPFC), for example, recorded a set encounter rate of 0.94%. But any whale shark fishing mortality is a concern due to their life history and ecological significance. Time/area fishing closures do not appear effective for avoiding catching whale sharks, but best practice guidelines for their release exist.
  • RAYS: Rays are not common bycatch in purse seine fisheries, at less than 0.1% by weight, and are mostly caught in free-school sets. Release from the deck is a viable alternative to release from the net. Fishers should avoid using hooks, wires or tightening slings and lifting or dragging by the gill slits or cephalic lobes.
  • SEA TURTLES: Sea turtles are caught in very small numbers by purse seiners, with most (> 90%) released alive relatively easily. Using non-entangling FADs can prevent turtle entanglement.
  • UNDESIRABLY SMALL BIGEYE AND YELLOWFIN TUNAS: Bigeye and yellowfin are not considered non-target species. Nonetheless, FAD fishing for skipjack stocks can result in higher catches of small bigeye and yellowfin, which can contribute to their overfishing. The species’ slower growth rates, higher longevity and higher age at maturity increase vulnerability to fishing. Mitigation efforts being evaluated include: adjusting the relative prices of small bigeye and skipjack tuna; setting species-specific quota; temporarily closing to fishing some areas of high concentrations; or managing the number of fishing sets on floating objects.

ISSF on Bycatch Mitigation
Since its inception in 2009, ISSF has dedicated resources and efforts to understanding bycatch issues in tuna fisheries (see “Related ISSF Activities” sections in the report). In addition to publishing scientific reports, ISSF hosts bycatch-mitigation workshops and publishes guidebooks and videos for skippers and other stakeholders. The Foundation also advocates science-based, mitigation measures to RFMOs through meetings and side events, position statements, and joint letters.

Commercial vessels catch about 4.7 million tons of tuna annually. Purse-seine vessels dominate large-scale tuna fishing, harvesting about 64% of the tropical tuna catch (skipjack, yellowfin, and bigeye tuna). Many purse seiners use Fish Aggregating Devices (FADs) or other floating objects to attract tuna to their nets, although they also may pursue sets on free-swimming tuna schools. More than half of the total tropical tuna landings globally are made by sets on FADs or other floating objects.

Bycatch occurs across most major tuna fishing methods — including longline, gillnet, and troll — and all fishing methods can affect the marine environment in multiple ways beyond bycatch.

“ISSF 2017-06: A Summary of Bycatch Issues and ISSF Mitigation Activities to Date in Purse Seine Fisheries, with Emphasis on FADs” can be downloaded from the ISSF site.

For more information on tuna stock health, see ISSF’s Status of the Stocks. For more information on FAD fishing and bycatch, see ISSF’s Questions and Answers about FADs and Bycatch.

Updated ISSF Status of the Stocks Report Shows Tuna Stock Abundance and Fishing Mortality Improvements

November 2, 2017 — WASHINGTON — The following was released  by the International Seafood Sustainability Foundation:

Of the total tuna catch, 78% comes from stocks at “healthy” levels, an increase of 2% since last reported, according to a November 2017 International Seafood Sustainability Foundation (ISSF) Status of the Stocks report. Eleven percent of the global catch came from overfished stocks, and another 11% of the catch is from stocks at an intermediate level of abundance. (See “Key Questions” below for definitions of overfished and overfishing.)

Updated several times per year, Status of the Stocks ranks the 23 stocks of major commercial tunas around the world using a consistent methodology. The report assigns color ratings (green, yellow or orange) on stock health, alternately noted as “abundance” and “spawning biomass”; fishing mortality; and ecosystem impact.

There are some encouraging changes in tuna stock status since the previous February 2017 Status report. The November 2017 report reflects new data from 2017 tuna Regional Fisheries Management Organization (RFMO) meetings:

  • Abundance ratings improved for Eastern Pacific bigeye, Western and Central Pacific bigeye, Mediterranean albacore, and Western Atlantic bluefin.
  • Fishing mortality ratings improved for Western and Central Pacific bigeye, North Pacific albacore, and Indian Ocean albacore.

In contrast, two bluefin stocks (Southern and Pacific Ocean), one yellowfin stock (Indian Ocean), and one bigeye stock (Atlantic Ocean) remain overfished. See Tables 1 and 2 in the report for specific rating changes.

Inadequate bycatch monitoring and/or bycatch mitigation measures — represented by separate “Environmental Impact” scores, the third rating area — still are a concern in many of the tuna fisheries studied.


Key Findings in Updated Report
Other notable statistics and findings include:

  • Total catch: In 2015, the total major commercial tuna catch was 4.8 million tonnes, a 4% decrease from 2014. More than half of the total catch (58%) was skipjack tuna, followed by yellowfin (28%), bigeye (8%) and albacore (4%). Bluefin tunas accounted for only 1% of the global catch. These percentages did not change from the February 2017 report.
  • Abundance or “spawning biomass” levels: Globally, 57% of the 23 stocks are at a healthy level of abundance (an increase of 5% from the previous report), 17% are overfished, and 26% are at an intermediate level.
    • Stocks receiving orange scores, indicating overfishing or overfished status, include both Southern Hemisphere and Pacific Ocean bluefin, Indian Ocean yellowfin, and Atlantic bigeye.
  • Fishing mortality levels: 65% of the stocks (an 8% improvement since the previous report) are experiencing a low fishing mortality rate, and 13% are experiencing overfishing.
  • Largest catches by stock: The three largest catches in tonnes are Western Pacific Ocean skipjack, Western Pacific Ocean yellowfin, and Indian Ocean yellowfin.
  • Tuna production by fishing gear: 64% of the catch is made by purse seining, followed by longline (12%), pole-and-line (9%), gillnets (4%) and miscellaneous gears (11%).

For the first time in Status of the Stocks history, the November 2017 report features an appendix with a list of fisheries certified by the Marine Stewardship Council (MSC).

“The MSC fishery certification scheme is the most widely recognized indicator of seafood sustainability,” explains Dr. Victor Restrepo, Vice President of Science, ISSF. “The list helps us to track the tuna stocks and fishing gears that are certified.”

About the Report
There are 23 stocks of major commercial tuna species worldwide – 6 albacore, 4 bigeye, 4 bluefin, 5 skipjack, and 4 yellowfin stocks. The Status of the Stocks summarizes the results of the most recent scientific assessments of these stocks, as well as the current management measures adopted by the RFMOs. In addition, this report ranks the status and management of the 23 stocks using a consistent methodology based on three factors: Abundance, Exploitation/Management (fishing mortality) and Environmental Impact (bycatch).

ISSF produces two reports annually that seek to provide clarity about where we stand —and how much more needs to be done – to ensure the long-term sustainability of tuna stocks: the Status of the Stocks provides a comprehensive analysis of tuna stocks by species, and the Evaluation of the Sustainability of Global Tuna Stocks Relative to Marine Stewardship Council Criteria provides a review of the health of tuna fisheries by region. The MSC-certified fisheries list (Appendix 2) in Status of the Stocks complements the Evaluation report.

Together, these tools help to define the continuous improvement achieved, as well as the areas and issues that require more attention. Access the newly updated ISSF stock status ratings here.

Key Questions Answered by the Report
Status of the Stocks answers three key questions about each tuna stock:

  1. Is the stock overfished?
    A. The report measures the abundance of fish that are able to reproduce each year, called the spawning stock biomass (SSB), and compares it to an estimate of the biomass that would produce maximum sustainable yield (SSBMSY), which is the spawning biomass that results in the highest average catches in the long-term (this is a target of fisheries management). When SSB is below SSBMSY the stock is in an “overfished” state.

Overfishing doesn’t necessarily mean that the stock is in immediate danger of extinction or collapse — it means that currently, the fish aren’t being allowed to grow and reproduce at their most productive level. If a stock is overfished, the report will note any corrective measures being taken by the relevant fisheries management organization (RFMO).

  1. Is it in danger of becoming overfished?
  2. The report measures the fishing mortality rate (F), a measure of fishing intensity, and compares it to the fishing mortality that produces maximum sustainable yield (FMSY). When F is above FMSY, the stock is in danger of becoming overfished in the future. This is called overfishing. If overfishing is taking place, the report will note any corrective measures being taken.
  3. Are the methods used to catch the tuna also catching significant numbers of non-targeted species?
  4. The report also measures the environmental impact of fishing in terms of “bycatch” rates. Bycatch is any species caught by the boat that is not the kind of fish the skipper is searching for. All fishing methods result in some bycatch of non-target species. The report identifies the relative bycatch rates by fishing gear and reports on mitigation measures adopted by the RFMOs for various species groups.

About the International Seafood Sustainability Foundation
The International Seafood Sustainability Foundation (ISSF) is a global coalition of scientists, the tuna industry and World Wildlife Fund (WWF) — the world’s leading conservation organization — promoting science-based initiatives for the long-term conservation and sustainable use of tuna stocks, reducing bycatch and promoting ecosystem health.

To learn more visit their website at issf-foundation.org.