Ropeless IS Real- the report

There are more than one million vertical lines off the North American coast of the Atlantic Ocean used by the lobster and crab fishing industry (Hayes et al., 2018). Pot/trap fishing gear, specifically the vertical lines attached to traps, poses an ongoing danger to both mariners and marine mammals, such as right whales.

Credit: Florida Fish and Wildlife Conservation Commission, NOAA Permit 775-1600-10.

 In fact, entanglement in fishing gear is the leading cause of death for the critically endangered North Atlantic right whale (NARW), Eubalaena glacialis. With an estimated population of about 400 individuals and only 100 breeding-age females, the species lies on the brink of extinction (Pettis et al., 2020, NOAA, 2019a). Since June 2017, thirty right whales have died, nearly twice as many as the previous five years (NOAA, 2020).

Since 1986, researchers and fisheries managers have identified geographic areas “of special concern” with regard to entanglements of right whales: the Gulf of Maine (ME), the Georges Bank (MA), and the Great South Channel (MA), which are also home to the American lobster and a robust commercial pot/trap fishery (Prescott and Best, 1986). In the past five years, entanglement has also been an increasing concern in the Gulf of St. Lawrence, Canada, related to their snow crab fishery (Daoust et al., 2017). Of the right whales remaining, 85 percent have been entangled at least once, and over 50 percent show signs of having been entangled more than once (Knowlton et al., 2012; Pettis et al., 2020). These entanglements not only lead to whale deaths but also decrease whales’ ability to produce calves, further endangering the species (Sharp et al., 2019).

Despite the recognition of gear entanglements as a significant threat to the endangered North Atlantic right whale, efforts to modify gear, such as sinking ground lines and weak links, have not eliminated this threat.(Myers et al., 2019) The most effective way to reduce or eliminate fisheries-related entanglements and mortality would be to reduce lobster fishing in the same geographic areas as marine animals, a principle known as “reduction of effort” (Smolowitz, 1978b). Any reduction in the number of buoys, endlines, and traps would lead to a reduction in entanglements, gear loss, and navigational hazards (Smolowitz, 1978a; Johnson, 2000; Macfadyen et al., 2009).

Introducing ropeless fishing gear is the natural solution: it would reduce vertical lines in the water without reducing lobster fishing, particularly in the areas of concern. Ropeless fishing gear is an innovative technology that removes the need for buoys and vertical lines in the water, except during active retrieval. The gear combines regular pot/trap fishing with a sophisticated acoustic release system that allows fishermen to retrieve their gear without the need of a vertical line and buoy connecting the trap to the surface.

The concept of ropeless gear for pot/trap fishing was first introduced in 1998 when the National Marine Fisheries Service (NMFS) issued its first contract to develop an acoustic release system (DeAlteris, 1999). Subsequently, ropeless fishing developed and multiple innovative and viable systems were created. In fact, after more than 20 years of innovation and sustained research, and thanks to both private and federal funding, many technological developments have moved the market forward from what was merely a theoretical concept to a real solution to marine mammal entanglements.

-Kim Sawicki is a Fulbright-Schuman Program Alumni affiliated with the University of Connecticut, the University of St. Andrews, Scotland, and the Marine Institute in the Republic of Ireland. In addition to her ongoing research, the author fosters informed discussion of coastal community and cetacean conservation through innovation on her website, Sustainable Seas. Since November 2018, she has served as a liaison between eight underwater technology companies and entrepreneurs that have mature products or are actively developing ropeless technologies. She is a volunteer for the Scottish Marine Animal Stranding Scheme, the Irish Whale and Dolphin Group, and the State of Connecticut’s Region 4 Incident Management Team (since 2010). She is one of the founding members of the Irish Entanglement Alliance, and with the guidance of the gear manufacturers listed within the report, she advised the New England Fishery Management Council’s (NEFMC) gear research group on the standardization of research methodologies for ropeless. Currently, she is involved in ongoing research in Georgia, Ireland, and the UK on the implementation of ropeless fishing technologies and recently completed a pilot study with Scottish creel fishers.

We have a chance to fix things.

No. 3329 Credit: Peter Flood

“If I seem like a radical, it may be because I see things that others do not. I think if others had the opportunity to witness what I’ve seen in my lifetime…I would not seem like a radical at all. We have a chance to fix things.”

-Her Deepness, Sylvia Earle. Mission Blue

It has taken several days for me to sit down and write this post.  This is not because I don’t know what to say, but because writing the words will make it real.

A year ago, I didn’t even know what a North Atlantic Right Whale was. Since that time, I have spent countless hours researching these animals, their families, their food, their habitats, their mating and migratory behaviors. I have also studied their necropsy reports, lab results, and a multitude of photos that exist of these animals and their babies. Too often, the images I see show them sliced apart or strangled by various fishing lines and lost gear, washed ashore as nothing more than deflated sacks of bone. The images of gaping wounds from propellers or a pathologist’s knife are becoming so common that now I feel each birth, and each loss, as intimately as if they were my own family.

We have lost 6 of a critically endangered species so far this season. Four of them were female.  We know that there are less than 100 breeding females in this tiny population that now numbers only 412. And this number only stands if all 7 of the calves born in Georgia and Florida survive their first year of life.

I will add more to this post as information becomes available, but please take a moment to pay tribute to these six individual animals whose lives enriched our coastal waters for too short of a time.

We still have a chance to fix things.

-Kim Sawicki, 1 July 2019


Please consider a donation to the Center for Coastal Studies, an organization that does incredible work for our North Atlantic Right Whales, as well as our ecosystem-at-large.


What do we know about these animals that died?


Punctuation Credit: DFO

We know that Punctuation, a 38-year-old grandmother, had been previously entangled in fishing gear before and survived. We also know that she was struck twice by boat propellers and lived. We know that she had at least 8 calves that also had successful births. We also know that she traveled to the Gulf of Saint Lawrence this summer, was struck by a third boat, and was killed.


Comet Credit: Dr. Moira Brown

We know that Comet, 34, was a grandfather as well. It has been determined by his autopsy, completed June 28th, 2019 by by the Marine Animal Response Society, DFO, Canadian Wildlife Health Cooperative, the Atlantic Veterinary College, the province and the Canadian Coast Guard that his death was also, likely due to ship strike.


Wolverine Credit: Sheila McKenney/Associated Scientists of Woods Hole/Marineland Right Whale Project
Wolverine Credit: Gabrielle Fahmy/CBC
Wolverine’s Necropsy Credit: Gabrielle Fahmy/CBC

We know that Wolverine, whose cause of death has yet to be determined, was only 9 years old. This is the equivalent of a 9 year-old human child dying of “unknown” causes. Wolverine was named for the propeller gashes visible along his spine. He also had been the victim of a series of entanglements.


Clipper and Calf 2016 Credit-Marineland RW Project

We know that Clipper, who was necropsied today on the Gaspe Penisula, was the victim many years ago of a previous ship strike that left her with a clipped tail fluke. She was first seen in 2004, and had likely been a mother twice. Clipper was reported as of July 5th, 2019 to have also been killed by a ship strike.


No. 3815 Credit: Center for Coastal Studies

No. 3815 was first seen as a calf off New Jersey in May 2008. She is the daughter of Harmony, No. 3115, who was the daughter of No. 1815. She was only 12 years old, and was just entering the age of sexual maturity.


No. 3329 Credit: Jolinne Surette

No. 3329 was likely born in December 2002 off Georgia. She is the daughter of Viola No. 2029 who was the daughter of Ipanema, No. 1629. She was also quite photogenic.


We still have a chance to fix things. Right Whale Credit: Brian Skerry
sustainable seas 2019

Ropeless and Lineless Fishing Gear

Below you will find links and videos highlighting the current manufacturers of several different styles of this innovative gear. Not all of the gear videos are the most current, as some of the designs are protected under non-disclosure agreements with the author or patents pending. As newer videos become available, this page will be updated. I have also included links to contact the manufacturers directly under each video.

The systems are presented in alphabetical order. Feel free to contact the author for any questions.

-Kim Sawicki February 2019