Predicting the effect of seine rope layout pattern and haul-in procedure on the effectiveness of demersal seine fishing: a computer simulation-based approach
Source at https://doi.org/10.1371/journal.pone.0182609 . Demersal Seining is an active fishing method applying two long seine ropes and a seine net. Demersal seining relies on fish responding to the seine rope as it moves during the fishing process. The seine ropes and net are deployed in a specific...
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ftunivtroemsoe:oai:munin.uit.no:10037/12184 2023-05-15T16:19:26+02:00 Predicting the effect of seine rope layout pattern and haul-in procedure on the effectiveness of demersal seine fishing: a computer simulation-based approach Madsen, Nina Aarsæther, Karl Gunnar Herrmann, Bent 2017-08-03 https://hdl.handle.net/10037/12184 https://doi.org/10.1371/journal.pone.0182609 eng eng Public Library of Science PLoS ONE Madsen, N. A. H., Aarsæther, K. G. & Herrmann, B. (2017) Predicting the effect of seine rope layout pattern and haul-in procedure on the effectiveness of demersal seine fishing: A Computer simulation- based approach. PLoS ONE 12(8): e0182609. FRIDAID 1514129 doi:10.1371/journal.pone.0182609 1932-6203 https://hdl.handle.net/10037/12184 openAccess VDP::Landbruks- og Fiskerifag: 900::Fiskerifag: 920::Fangst: 925 VDP::Agriculture and fishery disciplines: 900::Fisheries science: 920::Catch: 925 Journal article Tidsskriftartikkel Peer reviewed 2017 ftunivtroemsoe https://doi.org/10.1371/journal.pone.0182609 2021-06-25T17:55:30Z Source at https://doi.org/10.1371/journal.pone.0182609 . Demersal Seining is an active fishing method applying two long seine ropes and a seine net. Demersal seining relies on fish responding to the seine rope as it moves during the fishing process. The seine ropes and net are deployed in a specific pattern encircling an area on the seabed. In some variants of demersal seining the haul-in procedure includes a towing phase where the fishing vessel moves forward before starting to winch in the seine ropes. The initial seine rope encircled area, the gradual change in it during the haul-in process and the fish's reaction to the moving seine ropes play an important role in the catch performance of demersal seine fishing. The current study investigates this subject by applying computer simulation models for demersal seine fishing. The demersal seine fishing is dynamic in nature and therefore a dynamic model, SeineSolver is applied for simulating the physical behaviour of the seine ropes during the fishing process. Information about the seine rope behaviour is used as input to another simulation tool, SeineFish that predicts the catch performance of the demersal seine fishing process. SeineFish implements a simple model for how fish at the seabed reacts to an approaching seine rope. Here, the SeineSolver and SeineFish tools are applied to investigate catching performance for a Norwegian demersal seine fishery targeting cod (Gadus morhua) in the coastal zone. The effect of seine rope layout pattern and the duration of the towing phase are investigated. Among the four different layout patterns investigated, the square layout pattern was predicted to perform best; catching 69%-86% more fish than would be obtained with the rectangular layout pattern. Inclusion of a towing phase in the fishing process was found to increase the catch performance for all layout patterns. For the square layout pattern, inclusion of a towing phase of 15 or 35 minutes increased the catch performance by respectively 37% and 48% compared to fishing without a towing phase. These results highlights the importance of the selected seine rope layout pattern and the duration of the towing phase when fishermen try to maximize the catch performance of their fishery. To our knowledge this is the first time the combination of models for the physical behaviour of seine ropes and for fish behaviour in response to seine rope movements have been applied to predict catch performance for demersal seining. Article in Journal/Newspaper Gadus morhua University of Tromsø: Munin Open Research Archive PLOS ONE 12 8 e0182609 |
institution |
Open Polar |
collection |
University of Tromsø: Munin Open Research Archive |
op_collection_id |
ftunivtroemsoe |
language |
English |
topic |
VDP::Landbruks- og Fiskerifag: 900::Fiskerifag: 920::Fangst: 925 VDP::Agriculture and fishery disciplines: 900::Fisheries science: 920::Catch: 925 |
spellingShingle |
VDP::Landbruks- og Fiskerifag: 900::Fiskerifag: 920::Fangst: 925 VDP::Agriculture and fishery disciplines: 900::Fisheries science: 920::Catch: 925 Madsen, Nina Aarsæther, Karl Gunnar Herrmann, Bent Predicting the effect of seine rope layout pattern and haul-in procedure on the effectiveness of demersal seine fishing: a computer simulation-based approach |
topic_facet |
VDP::Landbruks- og Fiskerifag: 900::Fiskerifag: 920::Fangst: 925 VDP::Agriculture and fishery disciplines: 900::Fisheries science: 920::Catch: 925 |
description |
Source at https://doi.org/10.1371/journal.pone.0182609 . Demersal Seining is an active fishing method applying two long seine ropes and a seine net. Demersal seining relies on fish responding to the seine rope as it moves during the fishing process. The seine ropes and net are deployed in a specific pattern encircling an area on the seabed. In some variants of demersal seining the haul-in procedure includes a towing phase where the fishing vessel moves forward before starting to winch in the seine ropes. The initial seine rope encircled area, the gradual change in it during the haul-in process and the fish's reaction to the moving seine ropes play an important role in the catch performance of demersal seine fishing. The current study investigates this subject by applying computer simulation models for demersal seine fishing. The demersal seine fishing is dynamic in nature and therefore a dynamic model, SeineSolver is applied for simulating the physical behaviour of the seine ropes during the fishing process. Information about the seine rope behaviour is used as input to another simulation tool, SeineFish that predicts the catch performance of the demersal seine fishing process. SeineFish implements a simple model for how fish at the seabed reacts to an approaching seine rope. Here, the SeineSolver and SeineFish tools are applied to investigate catching performance for a Norwegian demersal seine fishery targeting cod (Gadus morhua) in the coastal zone. The effect of seine rope layout pattern and the duration of the towing phase are investigated. Among the four different layout patterns investigated, the square layout pattern was predicted to perform best; catching 69%-86% more fish than would be obtained with the rectangular layout pattern. Inclusion of a towing phase in the fishing process was found to increase the catch performance for all layout patterns. For the square layout pattern, inclusion of a towing phase of 15 or 35 minutes increased the catch performance by respectively 37% and 48% compared to fishing without a towing phase. These results highlights the importance of the selected seine rope layout pattern and the duration of the towing phase when fishermen try to maximize the catch performance of their fishery. To our knowledge this is the first time the combination of models for the physical behaviour of seine ropes and for fish behaviour in response to seine rope movements have been applied to predict catch performance for demersal seining. |
format |
Article in Journal/Newspaper |
author |
Madsen, Nina Aarsæther, Karl Gunnar Herrmann, Bent |
author_facet |
Madsen, Nina Aarsæther, Karl Gunnar Herrmann, Bent |
author_sort |
Madsen, Nina |
title |
Predicting the effect of seine rope layout pattern and haul-in procedure on the effectiveness of demersal seine fishing: a computer simulation-based approach |
title_short |
Predicting the effect of seine rope layout pattern and haul-in procedure on the effectiveness of demersal seine fishing: a computer simulation-based approach |
title_full |
Predicting the effect of seine rope layout pattern and haul-in procedure on the effectiveness of demersal seine fishing: a computer simulation-based approach |
title_fullStr |
Predicting the effect of seine rope layout pattern and haul-in procedure on the effectiveness of demersal seine fishing: a computer simulation-based approach |
title_full_unstemmed |
Predicting the effect of seine rope layout pattern and haul-in procedure on the effectiveness of demersal seine fishing: a computer simulation-based approach |
title_sort |
predicting the effect of seine rope layout pattern and haul-in procedure on the effectiveness of demersal seine fishing: a computer simulation-based approach |
publisher |
Public Library of Science |
publishDate |
2017 |
url |
https://hdl.handle.net/10037/12184 https://doi.org/10.1371/journal.pone.0182609 |
genre |
Gadus morhua |
genre_facet |
Gadus morhua |
op_relation |
PLoS ONE Madsen, N. A. H., Aarsæther, K. G. & Herrmann, B. (2017) Predicting the effect of seine rope layout pattern and haul-in procedure on the effectiveness of demersal seine fishing: A Computer simulation- based approach. PLoS ONE 12(8): e0182609. FRIDAID 1514129 doi:10.1371/journal.pone.0182609 1932-6203 https://hdl.handle.net/10037/12184 |
op_rights |
openAccess |
op_doi |
https://doi.org/10.1371/journal.pone.0182609 |
container_title |
PLOS ONE |
container_volume |
12 |
container_issue |
8 |
container_start_page |
e0182609 |
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1766005823192956928 |