Saving Seafood

Even baby fish are eating plastics, Hawaii study finds

November 12, 2019 — Recent evidence has shown that adult fish are eating plastics in the ocean and suffering from perils such as malnutrition and toxicant buildup.

Now, for the first time, a study conducted in Hawaii shows baby fish are ingesting tiny plastics, too.

The research, published today in the journal Proceedings of the National Academy of Sciences, found that both young coral reef fish and open-ocean species are consuming plastic as early as days after they are spawned.

Working in the waters off West Hawaii, an international team of researchers focused on surface slicks — naturally occurring ribbons of smooth water at the ocean surface that are formed when underwater waves converge near coastlines, according to a NOAA news release. These biologically rich ribbons of water aren’t always visible to the eye but are commonly seen, especially if wind conditions are right.

Found in coastal waters around the world, the surface slicks accumulate high concentrations of plankton, a key food source that lures larval fish in huge numbers. These watery nurseries harbor an impressive variety of species from a range of habitats, ranging from the deep ocean waters to shallow-water reefs.

Read the full story at The Honolulu Star Advertiser

Interim Bottomfish Measure Addresses Overfishing, Allows American Samoa Fishery to Operate

October 25, 2019 — The following was released by the Western Pacific Regional Fishery Management Council:

Fishermen from Tutuila and Manu’a islands concerned about the future of the Territory’s bottomfish fishery attended the Western Pacific Regional Fishery Management Council meeting yesterday and today in Utulei, American Samoa. A recent draft stock assessment by the National Marine Fisheries Service (NMFS) indicates that the federally managed bottomfish complex in American Samoa is overfished and experiencing overfishing. It also indicates that the federally managed Guam bottomfish stock complex is overfished but not experiencing overfishing.

Brian Langseth, a stock assessment scientist with NMFS Pacific Islands Fisheries Science Center (PIFSC), presented the 2019 draft assessment to the Council. The different outcome between the 2019 and previous stock assessments, he said, had to do largely with the way the data was filtered. The data is collected by the American Samoa Department of Marine and Wildlife Resources (DMWR) through creel surveys, in which DMWR staff interview fishermen about their catch and fishing trip. The Council expressed concerns about the robustness of the data from DMWR that was used in the assessment.

During public testimony, fishermen from Manu’a questioned the accuracy of the data used in the model. They said they haven’t been surveyed yet even though they fish principally for bottomfish due to cost and low availability of fuel as well as the small sizes of their vessels. Fishermen from Tutuila also questioned the data, noting that the creel surveys don’t capture the fishermen who return to port at night. One fisherman estimated that the creel surveys capture only about 5 percent of the catch. The fishermen also said the catch and catch per unit effort (CPUE) are affected by the wind and current conditions, cost of fuel and market demand. One fisherman shared that the boat owner may have only a $50 to $100 profit from a trip after fuel, ice and crew expenses. Fishermen noted that fuel costs have been high and the weather has been rough the past six months to a year. They stressed to the Council that the livelihoods of their families and communities depend on the ability for them to continue to fish.

Read the full release here

HAWAII: NOAA, local commercial fishers partner survey

October 2, 2019 — Hooks are in the water for the 2019 Hawaii bottomfish survey, an annual count of abundance done by researchers from the Pacific Islands Fisheries Science Center since 2016.

Those hooks are part of the second half of the annual survey, and the first portion of the survey went off without a hitch according to Benjamin Richards, National Oceanic and Atmospheric Administration researcher aboard the NOAA ship Oscar Elton Sette.

The NOAA ship returned to Honolulu Sept. 29 after using deep-water cameras to measure, count and watch Deep-7 bottomfish at 176 locations around the Main Hawaiian Islands.

Target species for these surveys are the “Deep-7” fish — opakapaka, onaga, ‘ehu, gindai, kalekale, lehi, and hapu‘upu‘u.

“The fall 2019 bottomfish survey went very well. With a very professional crew and science party, we had smooth sailing,” Richards said, pointing out newly established collaborations between NOAA Fisheries and the National Weather Service offices. “For the first time, we had National Weather Service Forecasters onboard the NOAA Ship Sette for the duration of the survey. This allowed us to choose ideal operating areas, with light winds and calm seas, maximizing the amount of work the team was able to accomplish.”

Read the full story at The Garden Island

Bottomfish Survey Underway Across Hawai‘i

September 19, 2019 — Researchers from the Pacific Islands Fisheries Science Center and local cooperative research fisheries have conducted the bottomfish survey in Hawaiʻi every year since 2016. The bottomfish survey provides estimates of bottomfish abundance—independent of fisheries—to assess the status of the Deep-7 bottomfish stock. The Deep-7 are opakapaka, onaga, ʻehu, gindai, kalekale, lehi and hapuʻupuʻu.

Throughout September 2019, the NOAA Ship Oscar Elton Sette will be home to a group of scientists deploying deep-water camera systems. These cameras are used to observe, count, and measure Deep-7 bottomfish at 176 locations around the main Hawaiian Islands. Scientists will start at the island of Niʻihau and work their way to the island of Hawaiʻi. They will spend their days on small boats deploying their cameras to depths where bottomfish live—between 250–1,300 feet. Researchers aboard the Sette will deploy additional cameras after the small boats depart. Each camera sits on the seafloor for 15 minutes before the researchers recover it and deploy it in a new location. Nothing is left on the bottom.

At the end of the survey, a team of researchers at the Pacific Islands Fisheries Science Center analyze the videos. They identify, count and measure bottomfish. Scientists turn these observations into abundance and biomass estimates, which they use to continually improve the Deep-7 stock assessment. The assessment provides managers with the best available information to set commercial catch limits and help ensure a sustainable Deep-7 fishery in the Hawaiian Islands.

Read the full story at Big Island Now

Preserving Poke in a Changing Climate

July 18, 2019 — The following was released by NOAA Fisheries:

Managing bigeye tuna in the Pacific is already challenging, and now a new study shows that climate change may affect our supply of this fish, used to make the deliciously popular ʻahi poke. The study projects the decline of catch in Hawai‘i’s bigeye tuna fishery as climate change continues to unfold. However, alternate scenarios could bolster ecosystem resilience and limit fishery declines.

Scientists from the Pacific Islands Fisheries Science Center, the University of Hawai‘i, and the University of Tasmania teamed up to model the ecosystem in which Hawai‘i’s bigeye tuna fishery operates. Their model projected how increasing ocean temperatures and declining plankton would affect specific fish species. (Temperature and plankton values were from a suite of climate models used by the Intergovernmental Panel on Climate Change.) The model also predicted how different scenarios, such as decreased fishing effort, could change those effects.

The scientists found that climate change led to a decline in catch regardless of whether fishing effort increased, decreased, or remained the same. A decline in bigeye tuna catch means less ‘ahi poke at your local market. However, the study also revealed fishing scenarios that may allow the ecosystem to remain resilient in the face of climate change.

“Rather than seeing the results as a doom-and-gloom future for Hawai‘i’s fishery, I see them as encouraging. They show that local choices matter, that we can decide which future scenario we want to pursue,” says lead author Phoebe Woodworth-Jefcoats. She points to two future scenarios in particular:  In one, the fishery persisted with today’s fishing effort. In another, the fishery slowly reduced its effort to half. Both scenarios showed similar declines in bigeye tuna catch, but in the second scenario, the ecosystem was resilient despite the effects of climate change, and the biomass of each fish species increased.

Read the full release here

Training Future Leaders in Marine Science and Conservation

June 14, 2019 — The following was released by NOAA Fisheries:

The well-lit room boasts two slow cookers on a small mobile table; two deep sinks with ample counter and cabinet space; two walk-in freezers large enough to fit king-size beds; and a central, hip-high table that could easily hold multiple adult boars for roasting.

If not for the overwhelming putrid scent, the room could pass for an unfinished kitchen of a new restaurant.

“This is the worst it’ll smell,” Taylor Williams says as she loads small bones into the slow cookers, unphased by the stench that, at times, is a cross between manure and rotting animal flesh. “Well, the worst until the bones start boiling.”

This is certainly no restaurant and Williams is no master chef concocting a new and exotic (albeit smelly) culinary masterpiece in her decked-out kitchen. Rather, the marine biology college senior is an intern with the NOAA Pacific Islands Fisheries Science Center (PIFSC) and her task is to boil the meat off of turtle humerus bones in the sea turtle necropsy (animal autopsy) lab. The gruesome work is part of a project led by Williams’ mentor Shawn Murakawa to determine the age of deceased sea turtles by counting rings within the bones (similar to tree rings).

“I do all the dirty work for that project,” Williams explains, adding that the other tasks of her internship include taking care of PIFSC’s rehabilitating sea turtles, responding to after-hours sea turtle strandings, entering data, and conducting her own research project using the humeri.

Read the full release here

Summary of Action Items for the 178th Meeting of the WPRFMC

June 5, 2019 — The following was published by the Western Pacific Regional Fishery Management Council:

The 178th meeting of the Western Pacific Regional Fishery Management Council will convene June 25-27, 2019, at the Laniakea YWCA, Fuller Hall, Honolulu, Hawai’i. The Council will consider and may take action on the issues summarized below, including any public comments on them. Written public comments should be received by the Council’s executive director by 5 p.m. (Hawai’i time), Thursday, June 20, 2019, by postal mail, fax or email as indicated below. After June 20, it is the submitter’s responsibility to provide at least 40 copies of the written comment to Council staff at the Council meeting.

Mail: Ms. Kitty M. Simonds
Executive Director
Western Pacific Regional Fishery Management Council
1164 Bishop Street, Suite 1400
Honolulu, HI 96813

FAX: (808) 522-8226
E-mail: info.wpcouncil@noaa.gov

Action Item Summaries
A
1. Specifying Harvest Limits for the Main Hawaiian Islands Kona Crab

The Council will consider specifying multi-year harvest limits for the main Hawaiian Island Kona crab for fishing years 2020-2023. The best scientific information available is the 2019 benchmark stock assessment with catch projection to 2026[1]. Based on this updated information, the maximum sustainable yield was estimated to be at 73,609 pounds and the overfishing limit at 33,989 pounds. The Council’s P* and SEEM* Working Groups and the Scientific and Statistical Committee (SSC) evaluated the scientific, social, ecological, economic, and management uncertainties and recommended a risk level for the Council to consider. The SEEM* working group used a new standardized process developed by the Social Science Planning Committee (SSPC), in which the social, ecological, and economic dimension is used to determine the risk of overfishing, and the monitoring and compliance/management criteria are used to determine management uncertainty. The risk of overfishing informs the Council’s consideration of annual catch limit (ACL) specification, and the management uncertainty informs the Council’s consideration in setting the annual catch target (ACT).

The Council will evaluate the following options:
1) No Action. No harvest limits will be specified for fishing year 2020-2023.
2) Specify the previous harvest limit at 3,500 pounds using the 2015 assessment (Thomas et al. 2015) for fishing year 2020-2023.
3) Specify the ACL equal to the acceptable biological catch (ABC) at P*=38 percent at 30,802 pounds and set an ACT at P*=30 percent at 28,324 pounds based on the P* and SEEM* Analysis using the 2019 benchmark stock assessment.
4) Specify the ACL equal to the ABC at P*=38 percent at 30,802 pounds and set an ACT 10 percent lower than the SEEM* analysis at P*=20 percent at 25,491 pounds using the 2019 benchmark stock assessment
5) Specify the ACL equal to the ABC at P*=38 percent at 30,802 pounds and set an ACT 20 percent lower than the SEEM* analysis at P*=10 percent at 21,243 pounds using the 2019 benchmark stock assessment

At its 178th meeting, the Council will consider taking final action to specify the harvest limits and the accountability measure that will prevent the fishery from overfishing the stock.

citation
[1]Kapur MR, Fitchett MD, Yau AJ, Carvalho F. 2019. 2018 Benchmark Stock Assessment of Main Hawaiian Islands Kona Crab. NOAA Tech Memo. NMFS-PIFSC-77, 114 p. doi:10.25923/7wf2-f040

B
2. Hawai’i Fishery Ecosystem Plan Amendment to Precious Coral Essential Fish Habitat

The Council at its 173rd meeting in June 2018 directed staff to develop options to redefine essential fish habitat (EFH) and any habitat areas of particular concern (HAPC) for precious corals in Hawai’i for Council consideration for a Fishery Ecosystem Plan (FEP) amendment. EFH information was reviewed through the 2015 and 2016 annual Stock Assessment and Fishery Evaluation (SAFE) report cycles and an options paper was developed for the 174th meeting in October 2018.

New observations of precious corals have occurred throughout the region, with research concentrated in the Hawai’i Archipelago. Observations in the territories and of the larval phase of precious corals are rare or nonexistent. However, new information exists to refine the habitat characteristics and geographic extent of deep- and shallow-water precious coral EFH in the Hawai’i Archipelago. Narrative information on which the EFH designations are based and information to fulfill the EFH requirements of fishery management plans may also be used to update the archipelagic FEPs. The redefinition of precious corals EFH is framed in three separate actions: refinement of deep-water species complex EFH; refinement of shallow-water precious coral species complex EFH; and update of the narrative information.

The Council at its 174th meeting reviewed the following options for each of the three actions:
Action 1 – Update EFH for deep-water precious coral species
Options
1) No change (status quo)
2) Revise EFH by depth range
3) Refine the geographic boundary of existing precious coral beds
4) Refine the geographic boundary of existing beds and add new beds

Action 2 – Update EFH for shallow-water precious coral species:
Options
1) No change (status quo)
2) Update geographic extent and habitat characteristics.

Action 3 – Update EFH narrative information
Options
1) Update the FEP narrative information on EFH
2) Do not update the FEP narrative information on EFH

The Council took initial action at its 174th meeting directing staff to prepare an amendment to the Hawai’i FEP to revise the Precious Corals EFH and selected the following preliminary preferred options:

Action 1 – Option 4: Refine the geographic boundary of existing beds and add new beds.
Action 2 – Option 2: Update geographic extent and habitat characteristics.
Action 3 – Option 1: Update the FEP narrative information on EFH.
At its 178th meeting, the Council will consider taking final action to amend the Precious Coral EFH section of the Hawai’i FEP.

C
3. Managing Loggerhead and Leatherback Sea Turtle Interactions in the Hawai’i-Based Shallow-Set Longline Fishery

The Council at its 173rd meeting in June 2018 recommended amending the Pelagic FEP to establish a management framework for the Hawai’i shallow-set longline fishery that consists of 1) annual limits on the number North Pacific loggerhead and leatherback turtle interactions consistent with the anticipated level of annual interactions that is set forth in the current valid biological opinion (BiOp) and 2) individual trip interaction limits for loggerhead and leatherback turtles. The Council also recommended specifications under the framework as follows: 1) annual limits of 37 North Pacific loggerhead turtles and 21 leatherback turtles; and 2) individual trip limit of five North Pacific loggerhead turtles.

The Council’s recommendation for specifying the loggerhead and leatherback turtle annual limits was based on the anticipated level of interactions analyzed in the biological evaluation (BE) initiating reconsultation of the Hawai’i shallow-set longline fishery under the Endangered Species Act (ESA) Section 7 consultation process. As part of its recommendation, the Council noted that it would review its recommendation if the new BiOp from the ongoing consultation results in a jeopardy decision or otherwise results in a different incidental take statement for North Pacific loggerheads or leatherbacks. The new BiOp was originally scheduled to be completed by Oct. 31, 2018, but the draft was not completed in time for the October SSC and Council meeting. Following the October meetings, the National Marine Fisheries Service (NMFS) Pacific Islands Regional Office (PIRO) set a new timeline to deliver the draft BiOp by Jan. 31, 2019, and a final BiOp by Feb. 28, 2019. Due to the federal government shutdown, the draft BiOp timeline was further delayed to March 25, 2019.

At its October 2018 meeting, the SSC received a presentation from the NMFS Pacific Islands Fisheries Science Center (PIFSC) on the population viability analysis (PVA) for loggerhead and leatherback turtles prepared for the ongoing Section 7 consultation. The modeling was conducted in response to a request by the PIRO Protected Resources Division for the purpose of examining the long-term viability of the species. PVA results indicate that the North Pacific loggerhead population has a mean estimated population growth rate of 2.4 precent, while the Western Pacific leatherback turtle population has a mean estimated population growth rate of 5.3 percent. The growth rates reflect long-term population trends based on nesting beach data representing approximately 52 percent of the North Pacific loggerhead turtle population and approximately 85 percent of the Western Pacific leatherback turtle population.

The Council at its 174th meeting in October 2018 reviewed the approach to the assessment for the BiOp and considered the SSC’s report regarding the PVA. The Council recommended convening an interim Council meeting, if needed, to review draft BiOp and consider any revisions to its June 2018 recommendations based on the BiOp and stated that it will reconsider a specification of leatherback individual trip limits if necessary.

The Council convened its 175th Meeting on Dec. 17, 2018, to consider final action on additional mitigation measures for the Western Pacific leatherback turtles in advance of the draft BiOp completion, taking into consideration the results of the PVA model indicating a continuing long-term declining trend of the population. The Council deferred action until the draft BiOp and more complete information on the impacts of the fishery on the Western Pacific leatherback turtles are available to fully inform the Council decision.

The draft BiOp was provided to the Council on March 28, 2019. The Council convened its 177th meeting on April 12, 2019, to review its recommendations on the management framework from the 173rd meeting for consistency with the draft BiOp and to consider taking final action on the management framework. The draft BiOp concluded that the shallow-set longline fishery is not likely to jeopardize the continued existence of ESA-listed species, including loggerhead and leatherback turtles. However, the draft BiOp also contained Reasonable and Prudent Measures (RPMs) that were inconsistent with the Council’s recommended framework. The Council at its 177th meeting maintained its management framework recommendation from the 173rd Council meeting, additionally recommended an individual trip limit of two leatherback turtles and requested that NMFS consider revising the RPMs for consistency with the Council recommended action.

At its 178th meeting, the Council will review the final BiOp for consistency with the 177th meeting recommendations and may consider taking additional final action if any discrepancies remain with the previously recommended action.

D
4. US Participating Territory Longline Bigeye Catch/Allocation Limits

Bigeye tuna comprises a Pacific-wide population that is internationally managed and assessed as separate stocks in the Western and Central Pacific Ocean (WCPO) and Eastern Pacific Ocean (EPO) by the Western and Central Pacific Fisheries Commission (WCPFC) and the Inter-American Tropical Tuna Association (IATTC), respectively. The best scientific information available indicates that both stocks are not subject to overfishing nor are they overfished, according to the stock status determination reference points in the FEP for Pelagic Fisheries of the Western Pacific Region. The scientific bodies of the WCPFC and IATTC will consider new benchmark stock assessments for both stocks in 2020.

In December 2018, the WCPFC agreed on CMM 2018-01, which limits the US longline bigeye tuna catch in the WCPO to 3,554 metric tons (mt) in 2019 and 2020. CMM 2018-01 does not establish an individual limit on the amount of bigeye tuna that may be harvested annually in the Convention Area by Small Island Developing States (SIDS) and Participating Territories, including American Samoa, Guam and the Commonwealth of the Northern Mariana Islands (CNMI). Limits are not provided to the SIDS and Participating Territories in recognition of their fisheries development aspirations.

In 2014, Amendment 7 to the Council’s Pelagic FEP was approved and implemented (50 CFR 665.819). It established the territorial catch/effort and allocation limit measure that provides NMFS with authority to:
Specify annual catch or effort limits for a US Participating Territory, as recommended by the Council, not to exceed any WCPFC-adopted limits;
Specify a limit recommended by the Council authorizing a US Participating Territory to allocate a portion of that specified catch or effort limit to eligible US vessels through a specified fishing agreement; and
Review and approve specified fishing agreements for consistency with the Pelagic FEP and other applicable laws.

The Council must annually review the conservation status of the fishery resource, the needs of fishing communities dependent on the particular fishery resource and consistency with the Pelagics FEP and other applicable laws in considering its recommendations for territorial catch, effort and allocation limits as well as its review of specified fishing agreements. Amendment 7 also established a territorial longline bigeye tuna catch limit of 2,000 mt for each territory and an allocation limit of 1,000 mt for each territory. At its 173rd meeting in June 2018, the Council took final action to modify the territorial catch/effort and allocation limit measure and implementing regulations. Should NMFS approve the action, it will amend the Pelagic FEP to remove the requirement for establishing separate total catch or effort limits for the US Participating Territories in order to establish an allocation limit and also would allow multi-year limits. The Council would annually review any established limits to determine whether the best available scientific information or the needs of fishing communities warrant modifying or rescinding such limits.

At its 178th meeting, the Council will consider recommending territorial bigeye tuna catch and/or allocation limits to take effect beginning in 2020, given the Council’s recommended modification of the territorial catch, effort and allocation limit measure. The Council will consider the following options:
1. No catch or allocation limits (no action)
2. 2,000 mt catch and 1,000 mt allocation limits
3. No catch limit and up to 2,000 mt allocation limits

The Council will also consider the fishing years in which the limits will take effect or expire, in consideration of the requirement for annual review, availability of new scientific information and potential for multi-year limits.

Pacific Reef Survey Finds Sea Turtle Populations on the Rise

April 25, 2019 — Sea turtle populations in Pacific coral reefs are increasing, according to a study that reveals the positive results of environmental protection efforts around the world and gives researchers information to protect these turtles from the effects of global changes.

Researchers from the U.S. National Oceanic and Atmospheric Administration’s Pacific Islands Fisheries Science Center recorded numbers of threatened and endangered sea turtles for 13 years at 53 sites across four regions of the U.S. islands in the Pacific as part of a larger study of other marine life, according to a research article released Wednesday by PLOS ONE.

The sites were located between islands, atolls and reefs in American Samoa, the Hawaiian Archipelago, the Mariana Archipelago and the Pacific Remote Island Area complex. Each site was observed every two or three years in April, using a boat towing two scuba divers 49 feet underwater who recorded the species and numbers of turtles within sight.

Researchers observed two species specifically, the green and the hawksbill turtles. Green sea turtles greatly outnumbered hawksbill across the survey area, providing further evidence of the need to protect the endangered hawksbill.

Read the full story at the Courthouse News Service

Report: Hawaii Kona crab ample enough for increased fishing

April 2, 2019 — Hawaii’s Kona crab fishery is healthy enough to expand the catch brought to market, according to an assessment by a federal marine science agency.

The National Oceanic and Atmospheric Administration made the 2018 stock assessment of the main Hawaiian Islands Kona crab fishery, West Hawaii Today reported Monday.

Hawaii waters remain well populated with Kona crab and the crustacean is not overfished, according to the assessment published by the agency’s Pacific Islands Fisheries Science Center in Honolulu.

There is room to increase the catch without risk to the species, a related article by the agency said.

The crab fishery can sustain an annual take by harvesters of more than 73,000 pounds (33,112 kilograms), according to NOAA projections.

University researchers drew different conclusions in a 2015 assessment that said Kona crab was being overfished, the newspaper reported.

Read the full story from the Associated Press

Using Artificial Intelligence to Identify Humpback Whales

November 9, 2018 — Artificial Intelligence has been used for everything from teaching computers to play chess to helping speed ride-sharing services on their way. And now one government agency is using it to track humpback whales in the Pacific.

For more than a decade, the National Oceanic and Atmospheric Administration has been tracking whales by recording them.

But there are challenges – like the sheer volume of data. Researchers have to sift through years of audio. Literally. Years.

“So far we’ve collected over 170,000 hours of data. Let’s put that in real terms. If you were to sit and listen straight, not sleeping, not eating, taking no breaks, it would take you 19 years to listen to all that data,”  says Ann Allen, a research oceanographer with NOAA’s Cetacean Research Program at the Pacific Islands Fisheries Science Center.

Read the full story at Hawaii Public Radio