Prediction of selectivity from morphological conditions: Methodology and a case study on cod (Gadus morhua)

Publication: Research - peer-reviewJournal article – Annual report year: 2009

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@article{4ae57294505e4d8c891cf297ef25e726,
title = "Prediction of selectivity from morphological conditions: Methodology and a case study on cod (Gadus morhua)",
keywords = "Morphology, Mesh penetration, FISHSELECT, Atlantic cod Gadus morhua, Size selectivity",
publisher = "Elsevier BV",
author = "Bent Herrmann and Krag, {Ludvig Ahm} and Rikke Frandsen and Niels Madsen and Bo Lundgren and Karl-Johan Stæhr",
year = "2009",
doi = "10.1016/j.fishres.2009.01.002",
volume = "97",
number = "1-2",
pages = "59--71",
journal = "Fisheries Research",
issn = "0165-7836",

}

RIS

TY - JOUR

T1 - Prediction of selectivity from morphological conditions: Methodology and a case study on cod (Gadus morhua)

A1 - Herrmann,Bent

A1 - Krag,Ludvig Ahm

A1 - Frandsen,Rikke

A1 - Madsen,Niels

A1 - Lundgren,Bo

A1 - Stæhr,Karl-Johan

AU - Herrmann,Bent

AU - Krag,Ludvig Ahm

AU - Frandsen,Rikke

AU - Madsen,Niels

AU - Lundgren,Bo

AU - Stæhr,Karl-Johan

PB - Elsevier BV

PY - 2009

Y1 - 2009

N2 - The FISHSELECT methodology. tools, and software were developed and used to measure the morphological parameters that determine the ability of cod to penetrate different mesh types, sizes, and openings. The shape of one cross-section at the cod's head was found to explain 97.6% of the mesh penetration results obtained in a laboratory experiment. Design guides predicting the 50% retention length (L50) of different mesh types, sizes, and openings were produced and compared with results from sea trials. Results show that the morphology-based simulations can be used to explain both the within-haul and the between-haul variations previously reported from sea trials. Finally, based on the results obtained, ideas to improve the size selection of cod in towed gear are presented.

AB - The FISHSELECT methodology. tools, and software were developed and used to measure the morphological parameters that determine the ability of cod to penetrate different mesh types, sizes, and openings. The shape of one cross-section at the cod's head was found to explain 97.6% of the mesh penetration results obtained in a laboratory experiment. Design guides predicting the 50% retention length (L50) of different mesh types, sizes, and openings were produced and compared with results from sea trials. Results show that the morphology-based simulations can be used to explain both the within-haul and the between-haul variations previously reported from sea trials. Finally, based on the results obtained, ideas to improve the size selection of cod in towed gear are presented.

KW - Morphology

KW - Mesh penetration

KW - FISHSELECT

KW - Atlantic cod Gadus morhua

KW - Size selectivity

U2 - 10.1016/j.fishres.2009.01.002

DO - 10.1016/j.fishres.2009.01.002

JO - Fisheries Research

JF - Fisheries Research

SN - 0165-7836

IS - 1-2

VL - 97

SP - 59

EP - 71

ER -