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      Comparing catch efficiency of five models of pot for use in a Newfoundland and Labrador cod fishery

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      PLoS ONE
      Public Library of Science

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          Abstract

          Sustainability of commercial fisheries is best achieved when fishing gears are selective and have low impacts on bottom habitat. Pots (baited traps) are a fishing technology that typically has lower impacts than many other industrial gears. In this study we compared the efficiency of five models of pots (baited traps) designed to catch Atlantic cod ( Gadus morhua) for use in Newfoundland and Labrador (NL)’s expanding cod fishery. We compared catch per unit effort (CPUE) and total lengths of cod across each pot type, as well as bycatch rates of each model. All pot types were successful at catching cod, but two models (the modified Newfoundland pot, and a four-entrance pot of our design) had highest CPUE. Specifically, we found that modifying Newfoundland pots increased their CPUE by 145% without a corresponding increase in bycatch. None of the pot types produced substantial amounts of bycatch. This study demonstrated that potting gear is an effective way to catch cod in NL, and that there is flexibility in which pot fishers can use, depending on the layout of their fishing vessel.

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          A protocol for conducting and presenting results of regression-type analyses

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            The condition of fish escaping from fishing gears—a review

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              Hedonic Pricing of Atlantic Cod: Effects of Size, Freshness, and Gear

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                Author and article information

                Contributors
                Role: ConceptualizationRole: Data curationRole: Formal analysisRole: Funding acquisitionRole: InvestigationRole: MethodologyRole: ResourcesRole: ValidationRole: VisualizationRole: Writing – original draftRole: Writing – review & editing
                Role: ConceptualizationRole: Funding acquisitionRole: InvestigationRole: MethodologyRole: Project administrationRole: ResourcesRole: Writing – review & editing
                Role: ConceptualizationRole: Data curationRole: Formal analysisRole: Funding acquisitionRole: InvestigationRole: MethodologyRole: Project administrationRole: ResourcesRole: SupervisionRole: ValidationRole: VisualizationRole: Writing – original draftRole: Writing – review & editing
                Role: Editor
                Journal
                PLoS One
                PLoS ONE
                plos
                plosone
                PLoS ONE
                Public Library of Science (San Francisco, CA USA )
                1932-6203
                27 June 2018
                2018
                : 13
                : 6
                : e0199702
                Affiliations
                [1 ] Department of Ocean Sciences, Memorial University of Newfoundland, St. John’s, Newfoundland and Labrador, Canada
                [2 ] Fisheries and Marine Institute of Memorial University of Newfoundland, St. John’s, Newfoundland and Labrador, Canada
                Swedish University of Agricultural Science, SWEDEN
                Author notes

                Competing Interests: The authors have declared that no competing interests exist.

                Author information
                http://orcid.org/0000-0002-4667-5025
                Article
                PONE-D-17-42161
                10.1371/journal.pone.0199702
                6021105
                29949631
                31138d15-de56-4e13-ae3b-84ac5533adce
                © 2018 Meintzer et al

                This is an open access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.

                History
                : 30 November 2017
                : 12 June 2018
                Page count
                Figures: 5, Tables: 6, Pages: 18
                Funding
                Financial support for this project was provided by the Canadian Centre for Fisheries Innovation (H-2015-08), the Research and Development Corporation of Newfoundland and Labrador’s Ignite program (5404.1889.101) and Ocean Industry Student Research Award (5404-1911-101), Fisheries and Oceans Canada (F5211-150224), a Marine Environmental Observation Prediction and Response (MEOPAR) Early Career Faculty Research Award (EC1-BF-MUN), a Government of Newfoundland and Labrador Seafood Innovation and Transition Program grant (#24), and the Liber Ero Fellowship. In-kind support was provided by inshore fish harvesters of Fogo Island, including Aubrey and Marie Payne, and Rodney Button. The funders had no role in study design, data collection and analysis, decision to publish, or preparation of the manuscript.
                Categories
                Research Article
                Biology and Life Sciences
                Organisms
                Eukaryota
                Animals
                Vertebrates
                Fish
                Osteichthyes
                Cod
                Biology and Life Sciences
                Marine Biology
                Fisheries Science
                Earth Sciences
                Marine and Aquatic Sciences
                Marine Biology
                Fisheries Science
                Biology and Life Sciences
                Organisms
                Eukaryota
                Animals
                Invertebrates
                Arthropoda
                Crustaceans
                Crabs
                Earth Sciences
                Geomorphology
                Topography
                Landforms
                Islands
                Biology and Life Sciences
                Agriculture
                Fisheries
                Biology and Life Sciences
                Organisms
                Eukaryota
                Animals
                Vertebrates
                Amphibians
                Toads
                Biology and Life Sciences
                Organisms
                Eukaryota
                Animals
                Vertebrates
                Fish
                Marine Fish
                Biology and Life Sciences
                Marine Biology
                Marine Fish
                Earth Sciences
                Marine and Aquatic Sciences
                Marine Biology
                Marine Fish
                Physical Sciences
                Chemistry
                Polymer Chemistry
                Macromolecules
                Polymers
                Nylons
                Physical Sciences
                Materials Science
                Materials by Structure
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                All relevant data are within the paper and its Supporting Information files.

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