A feasibility test of two NMFS flounder Turtle Excluder Device (TED) designs with large opening in the U.S. mid-Atlantic scallop trawl fishery

Parkins, Christopher; Smolowitz, Ronald

doi:10.25923/fphr-nm81

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A feasibility test of two NMFS flounder Turtle Excluder Device (TED) designs with large opening in the U.S. mid-Atlantic scallop trawl fishery

2015
By Parkins, Christopher ; Smolowitz, Ronald

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Personal Author:

Parkins, Christopher ; Smolowitz, Ronald

Parkins, Christopher ; Smolowitz, Ronald Less -
Corporate Authors:

United States. National Marine Fisheries Service ; Northeast Fisheries Science Center (U.S.)

United States. National Marine Fisheries Service ; Northeast Fisheries Science Center (U.S.) Less -
NOAA Program & Office:

NMFS (National Marine Fisheries Service) ; NEFSC (Northeast Fisheries Science Center)

NMFS (National Marine Fisheries Service) ; NEFSC (Northeast Fisheries Science Center) Less -
Description:

Previous studies in 2006 and 2009 comparing catch rates of Turtle Excluder Device (TED)-equipped trawls and standard scallop trawls indicated a 7 to 14% loss in scallop catch in the TED equipped trawl. The following report outlines the results of a 2014 and 2015 study examining the feasibility of implementing a TED in the scallop trawl fishery.

The 2014 study tested the feasibility of using a NMFS-approved flat bar flounder TED-equipped trawl to capture scallops in the Limited Access General Category (LAGC) trawl fishery. The study documented operational issues as well as catch comparison data. Though a similar average loss was observed (10%), analysis of the catch data indicated no significant difference in the catches. The data collected may not have been robust due to a small number of paired tows (N=13). One vessel was not able to fit the TED onto the net reel and could not be used for the research. During field testing, TEDs consistently showed many problems related to haul back operations and storage on the net reel. During the course of the research, two TEDs were destroyed while being hauled back under average scallop catches. Captains involved in the study indicated the need for a better tool to be used in the scallop trawl fishery.

In response to the 2014 trials, a bifurcated NMFS approved flounder TED was tested during the summer of 2015. After testing aboard two vessels, an average significant loss of ~30% was observed using the new design. Video observations indicate that the increased loss was due to large volumes of scallops clogging the TED during haul back. Operational issues were observed, though the new design proved to be more durable when wound on a net reel. The Captains indicated that they were not happy with the loss and operational issues encountered while using the TED.
Keywords:

[+]

Bycatches Catch Effort Endangered Species Equipment And Supplies Fisheries Research Scallop Fisheries Scallops Sea Turtles Trawls And Trawling Turtle Excluder Devices
DOI:

https://doi.org/10.25923/fphr-nm81
Document Type:

Miscellaneous
Funding:

NOAA NMFS Contract Number: EE-133F-13-SE-2036
Place as Subject:

North Atlantic Ocean ; United States

North Atlantic Ocean ; United States Less -
Rights Information:

Public Domain
Compliance:

Submitted
Main Document Checksum:

[+]

urn:sha256:08eb23144fbd7b61095d5e8172365ad2519e10e5260612cb85fc35dbc8b233d6
Download URL:

https://repository.library.noaa.gov/view/noaa/22417/noaa_22417_DS1.pdf
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A feasibility test of two NMFS flounder Turtle Excluder Device (TED) designs with large opening in the U.S. mid-Atlantic scallop trawl fishery

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