Saving Seafood

2022 NOAA Northeast Sea Scallop Survey Results

June 28, 2022 — The NOAA Fisheries Integrated Sea Scallop and Habcam Research Survey is in the books for 2022. Scientists and crew completed their work aboard the University of Delaware’s R/V Hugh R. Sharp on June 13, 2022.

The Atlantic sea scallop population is surveyed every summer by NOAA Fisheries and partnering research groups. This year those partners are the Coonamessett Farm Foundation, the Virginia Institute of Marine Science and the University of Massachusetts-Dartmouth School of Marine Science and Technology. Each partner surveys an assigned area using similar methods and a standardized survey design. Here, we are reporting results for the survey areas allocated to the NOAA Fisheries-based effort, led by the Northeast Fisheries Science Center.

Resulting data are used for fishery stock assessments, fishery management, and biological studies. Sea scallops are one of the most valuable commercial fishery species in the nation.

Leg 1 of the survey was conducted May 14 to 23 off the Mid-Atlantic and southern Georges Bank. Researchers deployed the stereo camera and sensor system known as Habcam V4.

Leg 2 was conducted from May 25 to June 3, and Leg 3 operated from June 5 to June 13. On these legs, we deployed both Habcam V4 and a scallop dredge. The dredge is a standardized 8-foot wide New Bedford sea scallop dredge that collects sea scallops for biological analyses.

Read the full story at NOAA Fisheries

Computers Now “See” Animals on the Ocean Bottom

September 8, 2020 — The following was released by NOAA Fisheries:

The Northeast Fisheries Science Center’s annual sea scallop research survey uses a towed sampling device called the HabCam. It collects approximately 5 million images of the ocean bottom off the Northeast United States. Scientists and volunteers then manually examine an astonishing 100,000 of these images, roughly 2 percent of the number gathered. They focus on identifying just four targets: sea scallops, fish, crabs, and whelks.

So, a wealth of data is going uncollected owing to the sheer volume available and just how labor-intensive pulling it out of images can be.

Researchers have turned toward finding ways for machines to help identify sea life in these images, faster and more efficiently than humans can. This would improve population data for sea scallops. By more thoroughly examining each image, all kinds of information about other sea life and their habitats can also be captured.

Enter Dvora Hart, an operations research analyst at the Northeast Fisheries Science Center. Hart has been at the forefront of estimating sea scallop populations numbers from images taken by devices like the HabCam. The upcoming 2020 sea scallop assessment will once again use improved population data collected from images.

“HabCam gives us photos of animals in their natural environment without disturbing them; however, much of the information in the images is not collected because human annotators can only mark a small percentage of the available images,” said Hart. “Automated annotators can mark all the images and, given proper training, can identify a multitude of different targets—not just sea scallops, fish, crabs and whelks.”

Hart is part of an interdisciplinary team that developed the world’s first advanced automated image analysis software for the marine environment. The Video and Image Analytics for the Marine Environment, VIAME for short, uses convolutional neural networks—a recent advance in artificial intelligence. These networks  teach computers to recognize species and features of their habitats in the images taken by the HabCam.

The work is so significant that Hart and her team won a 2019 Department of Commerce gold medal for their work. This recognition is the highest honor award offered to department employees.

Read the full release here

2019 Northeast Sea Scallop Survey Finishes

June 24, 2019 — The following was released by NOAA Fisheries:

The 2019 Northeast sea scallop survey got underway May 15 aboard the R/V Hugh R. Sharp, first covering stations in the Mid-Atlantic and then on Georges Bank. Operations concluded on June 14.

This survey occurs annually. It uses both a dredge to collect physical samples of sea life and their habitat, and a towed vehicle known as the HabCam. The HabCam is fitted with a number of sampling instruments, including cameras that photograph the ocean bottom. This dual sampling method enriches data available to researchers and helps ensure that information can be collected even if one of the systems fails during survey operations.

2019 NEFSC Sampling Effort

Most of the dredge operations occurred on Georges Bank. Planned dredge stations were completed throughout the Georges Bank area, and additional stations were added in the Great South Channel. Only two dredge stations were planned for the Mid-Atlantic area. These were completed.

HabCam coverage in the Mid-Atlantic was the most comprehensive achieved by the Center survey to date.

On Georges Bank, only the Southern Flank tracks and a small part of the northern Great South Channel were covered—about 30 percent of planned HabCam tracks for Georges Bank. HabCam tracks planned for the Northeast Edge and most of Great South Channel were not completed owing to operational issues with the HabCam vehicle and two days of unworkable weather.

“The sea scallop fishery is among the most valuable in the region, and people who rely on it also rely on us to provide the best possible data,” said Jon Hare, director of NOAA Fisheries’ Northeast Fisheries Science Center. “We were able to conduct additional dredge samples in the areas of Georges Bank that HabCam did not cover, and the team on the vessel did an excellent job adapting to the situation.”

Read the full release here

HabCam loss during Northeast scallop survey raises concerns about survey management

June 18, 2019 — The loss of the NOAA Northeast Fisheries Science Center “HabCam” (short for Habitat Mapping Camera) during a recent scallop survey has raised concerns from some groups about the transparency of the survey process.

The sea scallop survey of the U.S. Northeast scallop fishery performed by the Northeast Fisheries Science Center uses a combination of dredging and the HabCam to determine the densities of scallops at survey stations in the areas that are typically fished. Data from both the camera and the dredge, as well as data from a number of other surveys performed by colleges and other institutions,  are used to create a model that the various government organizations managing the resource – including the New England Fisheries Management Council (NEFMC) – use to set quotas for the coming year.

The HabCam is towed behind the research vessel on a long tether and is used to take detailed photos of the sea floor in order to get ideas on how dense and mature the scallop population is. According to the science center, during a survey of the Great South Channel on 6 June the HabCam struck an uncharted object in 130 feet of water, severing the tow cable.

“The weak link in the tow cable broke, as intended when tension is too great,” the science center wrote in a release. “This limits damage to both the instrument and the ship’s tow winch. The HabCam was separated from the ship, but a sound-emitting locator attached to it signaled its location.”

Read the full story at Seafood Source

Northeast Sea Scallop Survey Concludes This Weekend

June 14, 2019 — The Northeast Fisheries Science Center’s 2019 Northeast sea scallop survey is expected to be completed this weekend.

The survey, which is conducted from the Mid-Atlantic to Georges Bank, aims to determine the distribution and abundance of scallops and associated fauna using a dredge, and a stereo-optic towed camera array.

The scallop fishery is one of the nation’s most valuable.

The survey was recently impacted as the HabCAM hit a large rock breaking the tow cable.

Read the full story at CapeCod.com

Fisheries Survival Fund: HabCam Failure Threatens 2019 Atlantic Sea Scallop Survey

June 12, 2019 — The following was released by the Fisheries Survival Fund:

The loss, recovery, and now electrical failure of the NOAA Northeast Fisheries Science Center “HabCam”habitat mapping camera means that the all-important 2019 Northeast sea scallop survey now continues as a dredge-only survey. The federal survey will thus conclude on June 15 without crucial sampling instruments, including cameras that photograph the ocean bottom. The HabCam, towed just above the ocean floor, provides a non-invasive, extensive, optically-based survey of the Atlantic scallop resource and ocean floor. NOAA Fisheries is working to make the HabCam a centerpiece research and survey tool.

For its part, the scallop fishery is one of the nation’s most valuable and sustainable. On average, over a half billion dollars of scallops are landed each year in New England and Mid-Atlantic fishing ports. The fishery has prospered in large part due to NOAA Fisheries and scallop-industry funded cooperative research teams from universities and foundations obtaining and using real-time data and information regarding scallop growth and abundance. Federal scientists use the HabCam and a dredge survey, and the federal surveys are supplemented with cooperative dredge and optical surveys, conducted in partnership between the fishing industry and its research partners.

On June 6, the HabCam was being towed by the Research Vessel Hugh R. Sharpin the area known as the Great South Channel and hit an uncharted object in about 130 feet of water. The HabCam separated from the ship when the weak link in the tow cable broke. According to NOAA, this is “intended when tension is too great [in order to limit] damage to both the instrument and the ship’s tow winch.” Four days later, on June 10, commercial divers recovered the instrument. “The vehicle was inspected and minor repairs made, before deploying this morning. The HabCam initially operated as usual, but soon encountered power problems,” NOAA reported.

This disruption will hamper the survey, especially in the Great South Channel, which is a vital scallop harvesting area. The optical survey is particularly important due to the presence of numerous boulders in this area, which make dredge surveys difficult or impossible. This is an area with high yield to the fishery, and one dredge survey is inadequate to determine the size of the biomass in the area.

Government researchers charter the Research Vessel Hugh R. Sharpfor only a specific numbers of days each year, so any day lost has an impact. As a result of this failure, the survey will be conducted for fewer days, and we will therefore have less data to manage the scallop resource.

No matter how staunchly officials protest to the contrary, the HabCam’s loss and electrical failure willimpact our ability to manage the resource.

Sadly, this is the second time in just three years that the $450,000 HabCam has been lost and recovered while operating. On May 20, 2016, scientists aboard the Hugh R. Sharpresearch vessel were conducting scallop surveys about 75 miles southeast of Delaware Bay, between New Jersey and Delaware, when, according to NOAA, the HabCam “separated from the tow cable and the vessel” in about 80 meters of water.

Considering that this is not the first time this has happened, and bearing in mind that by the NOAA Science Center’s own declaration, the weak link is inserted intentionally to limit potential damage to the instrument, it is difficult to understand why no contingency plan is in place to address a loss situation that is both predictable, and known to arise if or when the weak link does its job.

Despite the seriousness of this equipment failure to the survey’s success, NOAA did not inform the public or the industry about this failure until it was directly and publicly asked about the status of the survey at this week’s New England Fishery Management Council meeting, a full five days after the incident occurred. The industry stands ready to partner with the NOAA Northeast Fisheries Science Center, and asks that the science center improve its dialogue and communication with the industry and the taxpaying public.

2019 Northeast Sea Scallop Survey Underway

June 12, 2019 — The following was released by NOAA Fisheries:

The 2019 Northeast sea scallop survey has been underway since May 15 aboard the R/V Hugh R. Sharp surveying at stations in the Mid-Atlantic and on Georges Bank. This survey uses both a dredge and a towed vehicle known as the HabCam, which is fitted with a number of sampling instruments including cameras that photograph the ocean bottom.

On June 6, the HabCam was being towed in the Great South Channel and hit an uncharted object in about 130 feet of water. The weak link in the tow cable broke, as intended when tension is too great. This limits damage to both the instrument and the ship’s tow winch. The HabCam was separated from the ship, but a sound-emitting locator attached to it signaled its location.

The vessel, crew, and researchers continued dredge sampling while planning HabCam recovery operations. On June 10 commercial divers arrived at the scene. The object struck was a rock, estimated to be about 25 feet high and about 40 feet wide. The divers and ship’s crew attached a recovery line to the vehicle and hauled it safely back onto the Sharp.

The vehicle was inspected and minor repairs made, before deploying this morning. The HabCam initially operated as usual, but soon encountered power problems.

Dredge operations will continue today, taking advantage of good weather ahead of the storms in the forecast for Thursday. The Sharp will come shoreside tomorrow to make HabCam repairs. We plan to complete as much of the remaining survey as we can after the repair.

This third and final leg of the 2019 survey is scheduled to conclude on June 15, and a summary of the cruise results will be released soon after.

Read the full release here

NE Council Receives 2017 Scallop Survey Overview and Progress Report on 2018 Management Measures in Framework 29

October 2, 2017 — The following was released by the New England Fishery Management Council:

During its late-September meeting in Gloucester, MA, the New England Fishery Management Council received a comprehensive overview of the “very successful” 2017 scallop survey season. The Council then reviewed the range of measures under development for Framework Adjustment 29 to the Atlantic Sea Scallop Fishery Management Plan. These measures, once fully developed and approved, will apply to the 2018 scallop fishing year, which will begin on April 1 instead of March 1 as in previous years.

Five separate groups contributed to the 2017 scallop surveys:

  • The Virginia Institute of Marine Science (VIMS) conducted dredge surveys in the Mid-Atlantic, Nantucket Lightship Area, and Closed Area II.
  • UMass Dartmouth School for Marine Science and Technology (SMAST) conducted intensive surveys of Closed Area I, Closed Area II, and the Elephant Trunk Area, along with broadscale surveys of Georges Bank and the Mid-Atlantic and a drop camera survey of Stellwagen Bank in the Gulf of Maine.
  • The Woods Hole Oceanographic Institution (WHOI), in partnership with Lund’s Fisheries, conducted a Habitat Camera Mapping System (HabCam) version 5 (v5) survey of the Northern Edge on Georges Bank.
  • Coonamessett Farm Foundation (CFF) conducted a HabCam v3 survey of the Nantucket Lightship Area, as well as a HabCam v3 survey on Stellwagen Bank and Jeffreys Ledge in the Gulf of Maine, along with six dredge tows on Stellwagen. And,
  • The Northeast Fisheries Science Center (NEFSC) conducted a dredge survey on Georges Bank and a HabCam v4 survey of the Mid-Atlantic and Georges Bank.

Read the full release at the New England Fishery Management Council

How do you get a $450,000 camera off the bottom of the sea?

May 26, 2016 — The following is excerpted from a story published today by the Boston Globe:

Shortly after dawn last Friday, the R/V Hugh R. Sharp was towing a sophisticated array of sensors and cameras along the bottom of the Atlantic Ocean. Then suddenly, the research vessel shuddered.

Within seconds, the line went slack, and the team of scientists and volunteers realized the $450,000 camera system was lost, somewhere off the Virginia coast.

Officials at the National Oceanic and Atmospheric Administration said they believe the cable connecting to the camera system, known as HabCam, snagged on the remains of the Bow Mariner, a well-known wreck in the area.

The scientists lost contact with the HabCam as a college student was piloting it. HabCam, which is about 10 feet long and weighs 3,700 pounds, was at a depth of about 240 feet, some 90 miles southeast of Delaware Bay.

The Sharp has only several weeks available in the spring to survey scallops, which last year had a catch valued at nearly $425 million, more than three-quarters of which went to fishermen in New Bedford.

Those representing fishermen said they’re deeply concerned about the prospects for this year’s survey.

“This will create uncertainty in the scallop assessment, meaning there’s a greater chance that we’ll catch too few scallops, which will be a short-term loss, or too many, which will be a long-term loss,” said Drew Minkiewicz, an attorney for the Fisheries Survival Fund, a trade group that represents scallopers throughout the Northeast.

Some in the fishing industry blame NOAA for allowing a college student to pilot the HabCam. They also raised questions about whether the incident occurred as a result of problems with another NOAA ship, the Henry B. Bigelow, which required unexpected maintenance this spring that delayed its survey of groundfish stocks more than ever before.

“I’m told that because of the Bigelow fiasco, [NOAA] transferred more experienced people from the scallop survey to the groundfish survey to try to make up for lost time,” said Robert Vanasse, executive director of Saving Seafood, a Washington-based group that represents the fishing industry.

“Since the volunteer wasn’t as experienced, and since the captain was apparently driving directly into the path of a 600-foot sunken tanker, they didn’t react quickly enough,” he added.

Read the full story at the Boston Globe

Saving Seafood Executive Director Talks Lost NOAA HabCam

 

WASHINGTON (Saving Seafood) – May 25, 2016 — A $450,000 camera used to survey scallops on the ocean floor was lost Friday when a NOAA-chartered vessel towed it too close to a known ship wreck, as reported yesterday by the New Bedford Standard-Times.

This morning, Saving Seafood Executive Director Bob Vanasse spoke with New Bedford 1420 WBSM morning host Phil Paleologos about the accident, saying it proves the need for changes to the Atlantic scallop survey.

“The Fisheries Survival Fund [which represents members of the Atlantic scallop fleet] has been arguing for some time that the Federal scallop survey should not be done just by one single piece of equipment on one single vessel, but that there should be backups,” Mr. Vanasse said.

Compounding the problem the lost camera will have on this year’s Federal scallop survey is the fact that respected scientist Kevin Stokesbury, from UMass Dartmouth’s School for Marine Science and Technology, did not receive government funding for his own survey. Dr. Stokesbury’s surveys, which use cameras dropped into the ocean to take pictures of the seafloor, had previously been funded every year since 1999.

Mr. Vanasse called the loss of NOAA’s HabCam habitat camera last week “a combination of really bad circumstances.” He raised concerns about researchers aboard the R/V Hugh R. Sharp piloting the expensive HabCam so close to the well-known and charted wreckage of the Bow Mariner, where a cable apparently snagged the sunken ship and detached the camera. He also pointed out that many industry leaders raised concerns that a volunteer worker was piloting the HabCam at the time of the accident.

NOAA researchers are beginning efforts to find the HabCam today, nearly a week after it was lost, and say they will be able to make up for lost time. But scallop industry experts are unconvinced, according to Mr. Vanasse.

“That doesn’t really make sense,” Mr. Vanasse said of the industry perspective. “If they plan to go out for a certain time, they do that because they need it.”

The timing issue is further complicated because NOAA leases the Sharp from the University of Delaware for a limited period of time at high expense. Even if NOAA is able to salvage the HabCam, it will likely take more than a week of valuable time, Mr. Vanasse said.

The lost HabCam is not the first issue NOAA has had a with a research vessel in recent weeks. Earlier this month the R/V Henry B. Bigelow, the ship that surveys for groundfish and many other species on the East Coast, was delayed due to mechanical issues with its generators. The Bigelow was already running more than a month behind before its generator problems. Mr. Vanasse pointed out that Dr. Bill Karp, director of the Northeast Fisheries Science Center, has been pushing for NOAA to charter commercial fishing boats as backups, including at April’s NEFMC meeting (skip to 31:51 to listen to Dr. Karp).

“We need higher ups at NOAA to listen to what Dr. Karp has been saying about needing backups on the groundfish survey,” Mr. Vanasse said. “And we need everybody at NOAA to pay attention to what the [Fisheries] Survival Fund has been saying about having backups on the scallop survey.”

Listen to the full segment here