Saving Seafood

Some sharks are more likely to die after ‘catch and release,’ study finds. Here’s why

September 24, 2021 — Longlining, a commercial fishing technique that drags a main line with baited hooks through the water, is convenient when catching massive amounts of swordfish and tuna, but it also traps what experts call “bycatch” — unintended victims that may face dark fates after release back into the ocean.

Sharks are often attracted to and caught on these baited longlines; it’s one of the many culprits behind declining shark populations. Certain rules called “no-take regulations” require fishermen to release some species when accidentally hooked, but a new study of over 300 sharks found that some are much more likely to die after “catch and release” than others. The study was published Sept. 15 in the journal PLOS One.

“The assumption behind no-take regulations is that the shark will swim away and live out its normal life after it’s released, but we know that for some sharks, that’s not true,” study lead author Dr. Nick Whitney, senior scientist at the New England Aquarium’s Anderson Cabot Center for Ocean Life in Massachusetts, said in a news release.

After five years of longline fishing that targeted five of the seven most commonly caught species in the Gulf of Mexico and Florida Keys, the researchers learned as many as 42% to 71% of blacktip and spinner sharks will die after being caught and released alive. Others, such as sandbar and tiger sharks, were more resilient; only 3% or fewer died after release. Bull sharks were also one of the more hardy species. The animals were caught near Madeira Beach, Key West and Naples, Florida.

The team learned 90% of the post-release deaths occurred within five hours of returning to the water, and 59% occurred within just two hours. Blood samples and tracking data revealed the stress of the capture process, or injuries acquired during it, leads to the unnecessary and disproportionate demise of some sharks.

Read the full story at the Miami Herald

Western Pacific Fishery Managers Recommend Improved Seabird Conservation Measures

September 23, 2021 — The following was released by the Western Pacific Regional Fishery Management Council:

The Western Pacific Regional Fishery Management Council recommended modifications to a regulatory amendment as an initial action to improve seabird conservation in the Hawai‘i deep-set longline fishery.

A recent tori line study showed that the streamer lines are significantly more effective than blue-dyed fish bait to deter seabirds like Laysan and black-footed albatross from interacting with longline gear. The Council supported using tori lines instead of blue-dyed bait, which is currently required as a seabird interaction mitigation measure implemented under the Council’s Pelagic Fishery Ecosystem Plan. The Council will consider a full analysis to make a final decision at its December 2021 meeting.

In addition, the Council recommended removing strategic offal (fish waste) discards from the regulatory requirement. Discharging offal and spent bait in the ocean away from where fishing gear is set may distract birds in the short-term, but may also increase seabird attraction to fishing vessels over time. The Council also recommended best practices training on offal management be added to the required annual protected species workshop for Hawai‘i commercial fishermen.

“We support this change since blue dye is messy and not always effective,” said Hawaii Longline Association Executive Director Eric Kingma. “Tori lines are extensively used around the world, including fisheries in Alaska, Australia, New Zealand and Japan. They are practical, easy to use and not expensive.”

The Hawai‘i longline fishery has been using seabird conservation measures for more than 20 years and pioneered many of the mitigation measures used internationally in pelagic fisheries.

The Council started discussion today on the American Samoa bottomfish rebuilding plan and will take a final decision tomorrow on the last day of the quarterly meeting. The Council will also decide annual catch limits for the main Hawaiian Islands uku fishery. Instructions on connecting to Webex, agendas and briefing documents are posted at www.wpcouncil.org/meetings-calendars.

The Council manages federal fisheries operating in waters offshore of the State of Hawai‘i, the Territories of American Samoa and Guam, the Commonwealth of the Northern Mariana Islands (CNMI) and the U.S. Pacific Remote Islands Areas.

Pacific Fishery Scientists Recommend Ways to Better Manage False Killer Whale Impacts

September 20, 2021 — The following was released by the Western Pacific Regional Fishery Management Council:

The Scientific and Statistical Committee (SSC) of the Western Pacific Regional Fishery Management Council adopted recommendations to improve the management of impacts to false killer whales (FKWs) in the Hawai‘i deep-set longline fishery. The issues paper from an SSC working group reviewed cetacean avoidance research and interaction reduction measures, and risk assessment methods used to evaluate the population-level impacts of fishery interactions.

The paper, endorsed by the SSC, raises concerns about the serious lack of fundamental population demographic information needed to support evidence-based policy guidance on the issue. The current risk assessment framework used to evaluate the potential impacts of FKW bycatch in the U.S.-based pelagic longline fishery is based on a concept called the potential biological removal (PBR), which is required under the Marine Mammal Protection Act (MMPA). At its June 2021 meeting, the SSC acknowledged the PBR approach does not account explicitly for the present assumption that long-term consequences exist for FKW populations exposed to anthropogenic hazards such as pelagic longline gear. The working group found that available scientific data do not strongly support this assumption.

The SSC’s recommendations highlighted several approaches to address the current deficiencies in the risk assessments. This includes implementing a conceptual framework called “population consequences of disturbance” comprised of a four-level sequence, ranging from observed changes in individual behavior to population-level effects like impaired reproductive, survival or population growth rates. Another recommendation noted the need for a risk assessment model based on population dynamics to assess the applicability of PBR for bycatch management.

Also, the group recommended that a post-release study on FKWs should be conducted using satellite tags or other technology to assess mortality rates and sublethal effects of capture and release. Currently, there is not enough demographic information, such as survival rates at different ages and reproductive rates, to do a population assessment or diagnose trends for FKWs. Additionally, the lack of post-release survival data has led to the assumption that most FKWs observed in the Hawai‘i deep-set longline fishery are not likely to survive, even though most individuals are released alive.

“The underlying theme to all of these recommendations is that fishery impacts on FKWs to date have been seemingly small and infrequent,” said SSC Chair Jim Lynch, who presented the report. “Take reduction measures imposed should balance the biological and economic impacts.”

FKWs are incidentally hooked in the Hawai‘i deep-set longline fishery, which primarily targets bigeye tuna. Under the FKW Take Reduction Plan, fishermen are required to use hooks of a certain diameter intended to straighten and release the animals. However, this “weak hook” measure, among other requirements, has not been successful in achieving the conservation goals required under the MMPA. The Take Reduction Team, which includes members from academia, conservation groups, fishing industry, government and fishery management organizations, was not able to reach consensus on measures to revise the existing Plan after nearly three years of deliberations. In light of this situation, the SSC formed the working group to inform the future direction of this issue for the Council, which holds a seat on the Team.

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Regarding seabird conservation in the Hawai‘i longline fishery, the SSC recommended that tori lines should replace blue-dyed fish bait as a required bycatch mitigation measure. Scientists endorsed the findings from the tori line experimental fishing permit study that showed the streamers are significantly more effective than colored bait at reducing fishery interactions with seabirds like Laysan and black-footed albatross.

The Hawai‘i Division of Aquatic Resources (HDAR) summarized data for the SSC from four reopened bottomfish restricted fishing areas, or BRFAs. Data quality and quantity were concerns, creating challenges to interpreting effort and landings in evaluating the effects of BRFA opening. The SSC reiterated its recommendation since 2013 to eliminate all BRFAs in federal waters, due to the change in stock status since their establishment and because their management utility has been superseded by annual catch limits. The SSC also recommends HDAR continue to improve fishery-dependent data collection through better fisher engagement to effectively manage the bottomfish fishery.

Recommendations made by the SSC on these and other matters will be considered by the Council when it meets Sept. 21-23, 2021, virtually with host sites at Tedi of Samoa Building, Suite 208B, Fagatogo Village, American Samoa; BRI Building, Suite 205, Kopa Di Oru St., Garapan, Saipan, Commonwealth of the Northern Mariana Islands (CNMI); and Cliff Pointe, 304 W. O’Brien Dr., Hagatña, Guam.

Instructions on connecting to the web conference, agendas and briefing documents are posted at www.wpcouncil.org/meetings-calendars. Host sites are subject to local and federal safety and health guidelines regarding COVID-19; check the Council website for updates.

Hawaii Court Hears Case On Legality Of Foreign Fishing Labor

September 21, 2020 — The Hawaii Supreme Court heard arguments Friday on the legality of granting licenses to foreign workers in Hawaii’s longline commercial fishing fleet, which for years has been under scrutiny after an Associated Press investigation revealed claims of human trafficking and questionable labor practices.

The case involves the issuance of Hawaii state commercial fishing licenses to individual foreign fishermen who are not “lawfully admitted” to the United States.

State law says only those legally in the country can get licenses to catch and sell marine life, but the workers do not have visas to enter the U.S. so they are ordered to live onboard the fishing boats by federal officials. They must eat, sleep and work on the boats, often for years at a time, and are subject to deportation.

Friday’s hearing stems from a petition that was filed by a Native Hawaiian fisherman who sought to have the state enforce a statute that declares only people who are in the U.S. legally can acquire commercial fishing licenses.

The petition was denied by the Hawaii Department of Land and Natural Resources, which issues the permits, and a lower court upheld the ruling before the Supreme Court agreed to hear the case.

Read the full story at Hawaii Public Radio

Longline fishing hampering shark migration

August 21, 2019 — Longline fisheries around the world are significantly affecting migrating shark populations, according to an international study featuring a University of Queensland researcher.

The study found that approximately a quarter of the studied sharks’ migratory paths fell under the footprint of longline fisheries, directly killing sharks and affecting their food supply.

Dr Bonnie Holmes, from UQ’s School of Biological Sciences, wanted to find out why shark numbers have been declining significantly over the past 20 years.

“We’re losing these incredible creatures, and we know so little about shark movements and what drives them,” she said.

“I joined an international research effort, using new technologies — like satellite tracking and big data analysis — to help answer some critical questions.”

Read the full story at Science Daily

Environmental groups file federal suit to stop California longline fishery

June 6, 2019 — Two environmental groups filed a lawsuit against the administration of U.S. President Donald Trump on Thursday, 6 June, claiming it used a “backdoor maneuver” to permit a new longline fishery off the California coast.

In a statement, the Center for Biological Diversity and Turtle Island Restoration Network said NOAA Fisheries did not comply with the Endangered Species Act when it approved the longline fishery last month. The fishery will consist of two fishing vessels utilizing lines with numerous hooks that stretch for miles to catch tuna and swordfish.

The groups fear endangered species such as Pacific leatherback turtles will end up caught in some of the hooks and potentially die from the interaction. Scientists believe those leatherbacks could become extinct within two decades.

“The failure of the Fisheries Service to comply with environmental laws in issuing the Permit diminishes leatherback sea turtles’ slim chance to defy predictions of extinction,” the complaint, filed in the Northern District of California, states.

Officials issued the permit even though NOAA Fisheries banned longlines 15 years ago.

“This is basically the same fishery the agency outlawed 15 years ago, and the same agency is using a backdoor maneuver to get the fishery reopened,” Turtle Island Restoration Network Executive Director Todd Steiner said in a statement.

Read the full story at Seafood Source

ISSF expands reach across longline tuna sector

November 21, 2018 — The International Seafood Sustainability Foundation (ISSF) has announced the adoption of two new conservation measures “to facilitate continuous improvement across global tuna fisheries”.

ISSF also amended two of its existing conservation measures. Adoption of the new measures back the expansion of its efforts to the longline fishing sector, doubling the number of measures that apply to longline vessels specifically, the first of which were adopted in April 2017.

All ISSF conservation measures directly affect how nearly 30 global seafood companies environmentally manage their respective tuna supply chains, it said.

“Our work at ISSF is ever evolving. We regularly review ISSF conservation measures to update existing standards or to create new commitments in line with the latest fisheries research or to address conservation needs,” said ISSF President Susan Jackson. “With about 75% of the world’s canned tuna processing capacity conforming to dozens of ISSF measures for sustainability best practices — and with major tuna companies being transparently audited against these measures — we are driving unique and positive change across the world’s tuna fisheries.”

The ISSF ProActive Vessel Register (PVR) is a public internet database that tracks detailed vessel information and how vessels are following science-based practices that support sustainable tuna fisheries. MRAG Americas, a third party, independent auditor, audits vessels that join the PVR with respect to these practices; vessels that join the PVR commit to provide regular, accurate information about those activities. Because the PVR brings transparency to the tuna supply chain, ISSF has worked to increase the number of fishing vessels on the Register lists — from less than 200 vessels in 2012, the year it was launched, to more than 1,000 as of Oct. 31, 2018.

Read the full story at Undercurrent News

 

Hawaiian Longline Operators Accept $475,000 MARPOL Fine

September 12, 2018 — The U.S. Department of Justice and the U.S. Coast Guard have reached a consent decree with Hawaii-based operator Asure Fishery over the discharge of oily waste from a commercial longliner. It is the fourth MARPOL enforcement action that the USCG has brought against a Hawaiian longline fishing firm this year.

In a federal complaint filed last Friday, federal prosecutors alleged that the tuna longliner Jaxon T was not equipped for the treatment or storage of oily bilge waste under way, and she often discharged these wastes at sea. The complaint alleges that company managers Khang Quang Dang and Hanh Thi Nguyen had reason to know that the vessel lacked proper equipment for handling oily waste, but still allowed it to sail.

According to the complaint, the bulkhead separating the Jaxon T’s engine room from the fish hold had penetrations that allowed “free flow of fluids” between the two compartments. Apart from the potential safety implications of this arrangement, “substantial” amounts of water from melted ice would flow into the engine room, where it would raise the level of the water in the bilge. To address this problem, the crew would allegedly pump the bilge water directly over the side using a portable electric water pump, “one or more times per day.”

Read the full story at the Maritime Executive

 

118 Organizations Make Sustainability Appeal for Critical Improvements in Global Tuna Fisheries

May 16, 2018 — The following was released by the NGO Tuna Forum:   

A diverse, global group of 118 commercial and non-profit organizations have joined together to call for immediate action by tuna RFMOs to address critical tuna sustainability priorities. In a letter dated 7 May 2018, the signatories call for accelerated action on the following global tuna fishery priorities:

  • The development and implementation of comprehensive, precautionary harvest strategies
  • Effective monitoring and management of fish aggregating devices (FADs)
  • Strengthened monitoring, control and surveillance tools, including increased observer coverage in purse seine and longline fisheries, and of at-sea transshipment activity, through human observers and/or electronic monitoring
  • Greater focus on the implementation of bycatch mitigation best practices broadly, with an emphasis on longline fisheries

Tuna fisheries represent not only a high-value protein source but also an important economic driver for countries and communities around the globe. As a highly migratory, global species, the health of tuna stocks is of global concern – as witnessed by the breadth of signatories to this appeal.

The letter and outreach effort are being coordinated by leading NGOs working on tuna sustainability globally through the NGO Tuna Forum. The letter has been shared with the Indian Ocean Tuna Commission in advance of its annual meeting later this month; it will also be sent to Inter-American Tropical Tuna Commission (IATTC), International Commission for the Conservation of Atlantic Tunas (ICCAT), and Western and Central Pacific Fisheries Commission (WCPFC) in advance of their 2018 general meetings.

While the signatories recognize that RFMOs have made progress to-date on some these priorities, accelerated action is required on all fronts to ensure the long-term sustainability of tuna fisheries.

Specific actions that IOTC, IATTC, ICCAT and WCPFC are being asked to address in 2018 include:

  1. Develop and implement comprehensive, precautionary harvest strategies with specific timelines for all tuna stocks, including the adoption and implementation of target and limit reference points, harvest control rules, monitoring strategies, operational objectives, performance indicators, and management strategy evaluation;
  2. Adopt a 100% observer coverage requirement for purse seine vessels where it is not already required, and require the use of the best-available observer safety equipment, communications and procedures;
  3. Increase compliance with mandatory minimum 5% longline observer coverage rates by identifying and sanctioning non-compliance, and adopt and implement a 100% observer coverage requirement – human and/or electronic – within five years for longline fisheries;
  4. Adopt and implement a 100% observer coverage requirement for at-sea transshipment activities, as well as other measures that ensure transshipment activity is transparent and well- managed, and that all required data is fully collected and sent to the appropriate bodies in a timely manner;
  5. Develop and implement science-based recommendations for the effective management of FADs, and integrate FAD-based information into stock assessments to reduce uncertainties;
  6. Adopt effective measures for the use of non-entangling FAD designs as a precautionary measure to minimize the entanglement of sharks and other non-target species, and support research on biodegradable materials and transition to their use to mitigate marine debris;
  7. More effectively implement, and ensure compliance with, existing RFMO bycatch requirements and take additional mitigation action, such as improving monitoring at sea, collecting and sharing operational-level, species-specific data, and adopting stronger compliance measures, including consequences for non-compliance for all gear types.

The organizations believe these measures are needed to positively impact the long-term sustainability of tuna stocks and the overall health of the marine ecosystem.

Read the full letter here.

 

Hawaii Longline Swordfish Fishery Closed for Rest of Year; Industry Helped Negotiate Closure

May 15, 2018 — SEAFOOD NEWS — In the ups and downs of the Hawaiian swordfish fishery, the recent May 8 closure for the rest of the year was no surprise to the industry. Longliners worked with the National Marine Fisheries Service and plaintiffs of a recent lawsuit to comply with a court order.

The Turtle Island Restoration Network, Center for Biological Diversity and Earthjustice originally sued the Department of Commerce over a 2012 biological opinion that allowed the shallow set longline fishery to take a certain number of loggerhead and leatherback sea turtles every year. The U.S. District Court of Hawaii ruled in NMFS’ favor, so the ENGOs appealed. The U.S. Ninth Circuit Court of Appeals issued a split decision on Dec. 27, 2017, affirming the BiOp regarding leatherback sea turtles, but not for loggerhead turtles. The Hawaii Longline Association, which filed as interveners, were party to the settlement negotiations with the plaintiffs and NMFS, which were outlined in a May 4, 2018 agreement and court order. The result for 2018 was closure for the rest of the year.

While ENGOs are cheering the outcome as a victory for sea turtles, it’s somewhat of a pyrrhic victory and does more to promote an agenda for the plaintiffs rather than have any actual effect this year.

“The National Marine Fisheries Service, which is supposed to be protecting our wildlife, has instead been illegally helping the longliners push sea turtles to the brink of extinction,” Earthjustice attorney Paul Achitoff said in a press release. “We won’t allow it.”

The main swordfish season usually takes place in the winter, with most landings occurring by the end of March. This year was an anomaly, Hawaii Longline Association President Sean Martin said, in that the fishery reached its annual limit of turtle interactions in January, so the fleet was already done with swordfish for the year.

“We’re on the tail end of what would be the prime season anyway,” Martin said.

The fishery will open again on Jan. 1, 2019, no matter what, Martin said. Since the court vacated the 2012 biological opinion, NMFS is working on a new one. The agency could come back with a new incidental take statement for next year’s fishing season. Or, if the BiOp and corresponding take statement are not finished by Jan. 1, the fishery will open under an incidental take allowance approved by an earlier BiOp that allowed roughly half the number of turtle interactions as the 2012 BiOp.

Federal officials note the loggerhead turtles already show signs of recovery due to a history of better management measures, such as circle hooks and using mackerel for bait — squid bait is prohibited –has proven immensely effective worldwide. Most turtles caught in the fishery are released alive.

Those measures and more, implemented in the early 2000s, reduced sea turtle interactions in the fishery by 93 percent, the Council said. Observer coverage is 100 percent; all vessel owners and operators annually attend mandatory protected species workshops; all longline vessels are required to carry specified tools to safely remove hooks and lines from the turtles and to follow safe handling, resuscitation and release procedures; vessels are monitored through a mandatory satellite-based vessel monitoring system; and longline closed areas from 0 to 50 nautical miles of the main and Northwestern Hawaiian Islands have existed since the early 1990s.

“The record of 99 percent live releases, only two mortalities in 24 years and increasing loggerhead abundance over the past two decades underscore the management success of the Hawaii shallow-set longline fishery,” Council Executive Director Kitty M. Simonds said in a press release.

Martin said most of the 30 or so longline vessels will instead turn to the deep-set longline fishery for the remainder of the year, targeting tunas.

This story originally appeared in Seafood News, it is republished here with permission.