Trawling Archives - Page 2 of 3

New Study Puts Hard Numbers on Impacts of Bottom Trawling

July 24, 2017 — Roughly a fifth of all fish eaten globally are caught using nets towed along the bottom of the ocean. There’s long been concern that this method – known as trawling – destroys or severely damages the ecosystems where it’s used. Now, a new meta-analysis of the science available on this topic offers some quantification of the impacts of different type of trawls.

Previous studies have found that the mud plumes from some trawls can be seen from space, and that “bottom trawling related to commercial fisheries leaves a greater physical footprint on the seafloor than the combined effects of all other human activities, including scientific research, fossil fuel recovery and waste disposal.”

While it is undeniable that dragging metal gear across the seafloor impacts the ecosystems there, a new analysis of seventy different studies finds that not all trawls are equal, and that some do significantly less damage than others.

In particular, otter trawls – the type most commonly used in New England – have the least impact of the four types compared. Otter trawls scrape, on average, just under an inch off the seafloor and remove about six percent of the animals living there. In contrast, hydraulic dredges squirt water into the sediment to release buried animals, reaching about six inches into the sea floor and removing more than forty percent of animals.

Read the full story at WCAI

University of Washington: Bottom-trawling techniques leave different traces on the seabed

July 18, 2017 — The following is excerpted from an article published yesterday by the University of Washington:

Fishing fleets around the world rely on nets towed along the bottom to capture fish. Roughly one-fifth of the fish eaten globally are caught by this method, known as bottom trawling, which has been criticized for its effects on the marine environment.

An international group has taken a close look at how different types of bottom trawling affect the seabed. It finds that all trawling is not created equal — the most benign type removes 6 percent of the animal and plant life on the seabed each time the net passes, while most other methods remove closer to a third. A University of Washington professor is among the main authors on the study, led by Bangor University in the U.K. and published July 17 in the Proceedings of the National Academy of Sciences.

The meta-analysis looks at 70 previous studies of bottom trawling, most in the Eastern U.S. and Western Europe. It looks across those studies to compare the effects on the seabed of four techniques: otter trawling, a common method that uses two “doors” towed vertically in the water or along the bottom to hold the net open; beam trawls, which hold the net open with a heavy metal beam; towed dredges, which drag a flat or toothed metal bar directly along the seafloor; and hydraulic dredges, which use water to loosen the seabed and collect animals that live in the sediment.

“We found that otter trawls penetrated the seabed 2.4 cm (0.94 inches) on average and caused the least amount of depletion of marine organisms, removing 6 percent of biota per trawl pass on the seabed,” first author Jan Geert Hiddink at Bangor University said in a statement. “In contrast, we found that hydraulic dredges penetrated the seabed 16.1 cm (6.3 inches) on average and caused the greatest depletion, removing 41 percent of the biota per fishing pass.”

Depending on the type of fishing gear, penetration depth and environmental variables such as water depth and sediment composition, it took from 1.9 to 6.4 years for the seabed biota, or marine plants and animals, to recover.

“These findings fill an essential science gap that will inform policy and management strategies for sustainable fishing practices by enabling us to evaluate the trade-off between fish production for food, and the environmental cost of different harvesting techniques,” said Ray Hilborn, a UW fisheries professor and one of four co-authors who designed the study.

“There’s a common perception that you trawl the bottom and the ecosystem is destroyed,” Hilborn said. “This study shows that the most common kind of trawling, otter trawling, does not destroy the marine ecosystem, and places that are trawled once a year really won’t be very different from places that are not trawled at all.”

Read the full report here

NORTH CAROLINA: Public comment to be taken on petition impacting shrimp trawling

January 16, 2017 — A meeting set for this week will put the issue of resource protection versus gear restrictions on the shrimping industry up for debate.

The five advisory committees to the North Carolina Marine Fisheries Commission will meet jointly on Jan. 17 at the New Bern Riverfront Convention Center to receive public comment on a petition for rulemaking that would, if adopted, impact shrimp trawl fishing in most North Carolina waters.

The North Carolina Wildlife Federation submitted the petition on Nov. 2, and the commission has 120 days from that date to grant or deny the request that calls for stricter regulations for shrimp trawling and the shrimp season as a means to better protect habitat for juvenile finfish.

The petition asks the commission to designate all coastal fishing waters not already designated as nursery areas as special secondary nursery areas, including the ocean out to three miles. It also calls for establishing clear criteria for the opening of shrimp season and defining the type of gear and how and when gear may be used in special secondary nursery areas (SSNAs) during shrimp season.

Jerry Schill, president of the North Carolina Fisheries Association, a nonprofit organization for the state’s commercial fishing industry, said the restrictions sought through the petition would have severe impacts on the state’s shrimping industry.

NORTH CAROLINA: Opponents line up in showdown over limits to shrimp trawling

January 12, 2017 — Hyde County Commissioners, along with local stakeholders and seafood advocates, have issued strong opposition to proposed rules that would result in major changes to the state’s commercial trawling industry. They say the restrictions could ultimately end the state’s access shrimp.

A petition for the changes was submitted to the North Carolina Marine Fisheries Commission on Nov. 2 by The North Carolina Wildlife Federation. It asks the state to designate coastal fishing waters in the sounds and 3 miles into the ocean as primary nursery areas for various fisheries.

The petition was discussed at the commission’s November meeting. On Jan. 17, five joint advisory committees will meet and hear public comment on the issue in New Bern. Then, the commission will review comments and take action at its February meeting.

Other rule changes outlined in the 99-page NCWF petition are: Limiting shrimp trawling to three days a week; limiting trawling to daytime only; limiting the total head rope (the span of the nets) to 90 feet; establishing 45-minute tow times; define type of gear and how it can be used in special secondary nursery areas;and opening the season based on a 60 shrimp per pound.

Last week, Hyde County Board of Commissioners passed a resolution opposing the rules. Dare County and its towns are also taking up resolutions. Groups such as North Carolina Catch and the North Carolina Fisheries Association have taken stands against the petition and an individual effort has started a counter-petition.

The Hyde resolution says that hundreds of local businesses and families depend on catches from trawlers. Shrimp catches represent paychecks for the captain, crew and seafood industry, as well as products to market to visitors. The affects range across the 20 coastal North Carolina counties that boast a commercial fishing history.

“This petition would obviously cripple the state’s shrimp fishery, which is the second most valuable in our state and supports a number of other valuable industries such as gear design and manufacture, boat building and repair, refrigeration and repair, mechanical engineering, marine propulsion dealers, fuel distribution, seafood processing and a vibrant restaurant industry,” said Lauren Salter of Williston.

Salter serves on the board of directors for North Carolina Catch, a statewide group that works with several localized fishing partnerships to educate consumers about the importance of buying local seafood.

“This goes beyond shrimping,” said Salter, who is also the daughter of a down-east commercial fisherman. “If special interest groups continue to successfully limit access to our seafood by skillfully sidestepping the established fisheries management process, no seafood will be safe.”

Read the full story at The Outer Banks Voice

Fishery council says no to river herring and shad plan

October 7, 2016 — A call to put river herring and shad in the same fishery management plan as mackerel, squid and butterfish was voted down by the Mid-Atlantic Marine Fisheries Council.

Incidental bycatches in ocean trawl fisheries was a main reason behind the consideration, but the council will stick with a plan already in place for dealing with it.

American shad, hickory shad, alewife and blueback herring — a quartet of anadromous fish that are at historic low population levels — often mix with mackerel in the ocean.

They get scooped up incidentally in commercial trawl nets meant for mackerel. The MAMFC said the amount may be substantial enough to negatively impact their populations.

The plan had the support of many sport fishermen, environmental and conservation groups on the Eastern seaboard who said the it would’ve led to more aggressive stewardship on the species.

Read the full story at the Asbury Park Press

AL BURCH: Governor should recognize value of Alaska groundfish industry

July 25, 2016 — My brother and I were some of the pioneers of the trawl fishery here in Kodiak. We started from scratch when the United States claimed a 200-mile zone. I remember the foreign fleets off our shores, and once they were replaced by U.S. vessels like ours, I remember how the trawl fishery for pollock and cod helped put the town back on its feet after the collapse of the crab and shrimp fisheries in the late 1970s. I am proud of the fact that the fishery I helped pioneer now supports a year-round fishing economy here in Kodiak.

Although I am retired now, I continue to follow how the fishery is run. And I am concerned.

In the past, when we were struggling to build the fishery, the state of Alaska was on our side. We worked hard together to build a fishery that was managed by scientific principles and research, with no overfishing. We pioneered putting observers on U.S. vessels, and unlike a lot of other fisheries here in Alaska we have had observers for roughly 30 years. We worked alongside the state and the North Pacific Fishery Management Council to meet conservation and management challenges together, to ensure practical solutions that ensured an economically sustainable fishery for Kodiak and other Alaska coastal towns.

But now it seems that the state of Alaska is not concerned about the impacts of its decisions on the hard-working participants in this fishery and communities like mine that are dependent on groundfish.

Read the full opinion piece at Alaska Dispatch News

Commercial fishermen: Net ban would destroy N.C. seafood industry

May 23, 2016 — A state House bill first introduced 16 years ago has been resurrected that would ban the use of large trawling nets in state waters, a move that the commercial fishing industry says could destroy the livelihood for most North Carolina fishermen.

New Bern native Billy Richardson, D-Cumberland, filed a bill that would let voters decide whether to outlaw gill and certain other nets in all state coastal waters. If the N.C. General Assembly supports House Bill 1122, the binding referendum would be on the November election ballot.

“It would be the end of North Carolina’s (commercial) fishery,” said Wayne Dunbar, a waterman for nearly 40 years, located in Pamlico County’s Paradise Shores on Lower Broad Creek, leading into the Pamlico Sound. “People that don’t fish wouldn’t get North Carolina seafood.”

Dunbar said this time of the year most of the fishermen trawl inland waters for speckled trout, flounder, spot, croakers and menhaden. On a typical day, he will go out in his small boat with 300 yards of net and fill a fish box with about 300 pounds of seafood.

Dunbar, who studied fish and wildlife management at Wayne Community College, said a net ban also would be devastating to the crab industry, the largest of the state’s fisheries.

The bait includes menhaden and other fish caught in nets.

Read the full story at the New Bern Sun Journal

Helping Fishermen Catch What They Want, and Nothing Else

May 3, 2016 — Heather Goldstone, of NPR affiliates WGBH and WCAI, discusses bycatch reduction in fisheries on a recent episode of “Living Lab.” Her guests were veteran gear designer Ron Smolowitz of the Coonamessett Farm Foundation, who has worked with the southern New England scallop industry; Steve Eayrs, a research scientist at Gulf of Maine Research Institute, who has worked with groundfishermen in Maine; and Tim Werner, a senior scientist with the New England Aquarium, who put acoustic pingers on gill nets to warn away dolphins. An excerpt from the segment is reproduced below:

It’s the holy grail of commercial fishing: catch just the right amount of just the right size of just the right species, without damage to the physical environment. It’s a tall order, and few fisheries are there yet.

Leaving aside the issue of straight up over-fishing, the Food and Agriculture Organization of the United Nations estimates that, each year, fishermen around the world accidentally catch more than seven million tons of marine life – everything from whales and turtles, to sea cucumbers – that they weren’t even after. Such by-catch, as it’s known, is essentially collateral damage.

And fishing has other environmental impacts. In some parts of the ocean, the scars left by trawls dragged across the sea floor can be seen for years.

But, it doesn’t have to be that way. Over the past decade or so, a lot of effort has gone into designing fishing gear and related equipment that allows fishermen to catch more of what they do want, and less of what they don’t, while also minimizing damage to the environment. For example:

Veteran gear designer Ron Smolowitz and the Coonamessett Farm Foundation have worked with the southern New England scallop industry over the past several years to develop a trawl that excludes loggerhead sea turtles. It turns out, it’s also better at capturing scallops, with the end result that scallopers can use smaller areas and less fuel – 75% less – to make their catch.

Read the full story and listen to the segment at WCAI

North Carolina Fisheries Association – Weekly Update for March 28, 2016

March 29, 2016 — The following was released by the North Carolina Fisheries Association:

CARTERET COUNTY FISHERMEN’S ASSOCIATION is meeting on Saturday, April 9th at 6:30pm in Marshallberg. The group will be planning their annual Fish Fry scheduled for May, among some other things.

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SKIMMER TRAWLS:

Last week we listed information about potential new regs for skimmer trawls. For those of you who use skimmer trawls, you will receive a mailing from us in the next couple of days about this issue.

PLEASE TAKE THE TIME TO READ IT!

After looking it over, contact us at the office or an NCFA Board member about your thoughts as we will be discussing the subject at our Board meeting next Monday in Washington. The list of Board members and their phone numbers is listed in the mailing. If you’d like to attend the Board meeting, feel free to do so and participate in the discussion. The meeting begins at noon at the Civic Center in Washington NC.

For more info, contact NCFA’s biologist, David Bush: (910) 777-1605, or by email.

NOAA Fisheries hosts public meetings in April to discuss potential skimmer trawl regulations in Southeast US:

NOAA Fisheries is considering new regulations in the shrimp fishery of the southeastern United States based on information indicating sea turtles are vulnerable to capture by skimmer trawls and tow times may not be as effective in reducing bycatch-related mortality as turtle excluder devices. The agency will host five public meetings around the region to discuss and receive input from fishermen and other constituents on alternatives to reduce sea turtle bycatch and mortality.

These public meetings are the first stage in a multi-step process required by the National Environmental Policy Act to ensure that Federal agencies evaluate the environmental impacts of major Federal actions. During these meetings, the public is provided with an opportunity to assist us in determining the scope of issues that require analysis. The analysis of issues and the environmental impacts of the proposed actions will be presented in a draft Environmental Impact Statement, which will be made available for public comment. The notice of intent to prepare the draft statement will be published in the Federal Register on March 15, 2016.

Additionally, we prepared a scoping document and a list of frequently asked questions as aids to the public on the upcoming scoping process. These documents are available on the NOAA Fisheries website at: http://sero.nmfs.noaa.gov/protected_resources/index.html. The scoping document describes the major issues, current management and legal requirements, and identifies potential management measures to reduce interactions, and in particular, lethal interactions, between sea turtles and trawl fisheries.

There are several meetings being held but the North Carolina meeting is:

Morehead City, NC — April 13, 2016, 2 p.m. – 4 p.m., Crystal Coast Civic Center.

Scoping comments may also be submitted during a concurrent 45-day comment period. When they publish the draft EIS, it will also have a 45-day public comment period.

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FROM THE DIVISION OF MARINE FISHERIES:

State seeking public comment on management options required to improve blue crab stock

The N.C. Division of Marine Fisheries is accepting public comment on management options for the blue crab fishery. The management measures are required under Amendment 2 to the N.C. Blue Crab Fishery Management Plan to improve the condition of the state’s blue crab stock.

Division staff will discuss the possible management measures and receive public comment at the following upcoming advisory committee meetings:

Southern Regional Advisory Committee

April 6, 5:30 p.m.

DMF Central District Office; Morehead City

Northern Regional Advisory Committee

April 7, 5:30 p.m.

DEQ Washington Regional Office; 943 Washington Square Mall, Washington

Shellfish/Crustacean Advisory Committee

April 14. 6 p.m.

DMF Central District Office; Morehead City

Additionally, comments can be directed by phone to division biologists Jason Rock at 252-948-3874 or Corrin Flora at 252-264-3911, or by email to Jason.Rock@ncdenr.gov or Corrin.Flora@ncdenr.gov.

The N.C. Marine Fisheries Commission is scheduled to consider management action at its May meeting. Possible management options include:

* Increasing the minimum size limit for male and immature female crabs

* Establishing a seasonal size limit on peeler crabs

* Reducing the tolerance of sub-legal size blue crabs to a minimum of 5 percent and/or implementing gear modifications to reduce sublegal catch

* Eliminating the harvest of v-apron immature hard crab females

* Restricting the harvest of sponge crabs

* Prohibiting all harvest of sponge crabs and/or requiring sponge crab excluders in pots in specific areas

* Closing the crab spawning sanctuaries from Sept. 1 to Feb. 28 and possibly imposing further restriction

* Expanding existing and/or designating new crab spawning sanctuaries

* Closing the fishery by season and/or gear

* Gear modifications in the crab trawl fishery

Management measures will be implemented by proclamation following the commission’s May meeting.

Management action is required under Amendment 2 to the N.C. Blue Crab Fishery Management Plan, adopted by the N.C. Marine Fisheries Commission in November 2013. Amendment 2 uses an adaptive management framework based on the condition of the Blue Crab Traffic Light, which requires annual evaluation of three indicators to determine if any change in management is warranted. The indicators are adult abundance, the abundance of juvenile crabs in the stock (recruit abundance), and production (which evaluates the reproductive potential or resilience of the stock).

The annual evaluation has been completed, and management thresholds have been exceeded, requiring management action.

For more information, go to http://portal.ncdenr.org/web/mf/home under “Hot Topics.”

SOUTHERN FLOUNDER:

Thanks to those of you who have contributed to our Southern Flounder Fund. Those funds will be used exclusively for issues related to southern flounder, either legally or other avenues to address the situation.

If you have not yet contributed, please do so ASAP!

Send your donations to:

NCFA

2807 Neuse Blvd; Suite 11

New Bern, NC 28562

Please make your check out to NCFA/Southern Flounder Fund or to the NC Fisheries Association and be sure to put Southern Flounder Fund in the memo.

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CALENDAR

Apr 4; Noon; NCFA Board meeting; Civic Center; Washington NC

Apr 6; 5:30pm; MFC Southern Advisory Cmte; DMF office; Morehead City

Apr 7; 5:30pm; MFC Northern Advisory Cmte; DEQ office; Washington

Apr 9; 6:30pm; Carteret County Fishermen’s Association; Marshallberg

Apr 11; 6:00pm; Oyster/Hard Clam Advisors; DMF office; Morehead City

Apr 12-14; MAFMC meeting in Montauk, NY

Apr 13; 2:00-4:00pm; Skimmer Trawl meeting; Civic Center; Morehead City

Apr 13; 5:30pm; Finfish Advisors; DEQ office; Washington

Apr 14; 6:00pm; Shellfish/Crustacean Advisors; DMF office; Morehead City

Apr 25; North Carolina General Assembly convenes for the Short Session

May 2-5; ASMFC Spring Meeting; Westin; Alexandria, VA

May 18-20; MFC meeting; Civic Center; Morehead City

View a PDF of the Weekly Update

Research finds trawling not as devastating as often portrayed

November 23, 2015 — An ongoing two-year independent study on trawling and its effect on benthic sea life — species that live on sea floors where trawling occurs – has found that the practice may not be as devastating as it is portrayed by some NGOs.

The study called, ‘Trawling: Finding Common Ground on the Scientific Knowledge Regarding Best Practices’, is being funded by the Walton Foundation and the Packard Foundation in partnership with the National Fisheries Institute, and is being done by a group of international scientists who are collecting and assessing data of global sea floors where trawling occurs.

The major data collection and analysis for the project has been completed, including assessments of mobile bottom contact gear in Europe, Australia, New Zealand, Argentina, South Africa and most of the US, making it six times more extensive than and previous compilations.

According to Ricardo Amoroso of the University of Washington, who presented the data at this year’s Pacific Marine Expo in Seattle, public perception of trawling is often negative. Common public beliefs include the equivalent of 10 football fields are trawled every four seconds and that trawling is turning the seafloor into a desert.

Read the full story at Undercurrent News