Applying length-based assessment methods to fishery resources in the Bay of Biscay and Iberian Coast ecoregion: Stock status and parameter sensitivity.
Length-based methods have been widely applied to estimate biological parameters and understand the dynamics of marine resource populations within data-limited stocks. However, to date few studies have tested the sensitivity of parameters in length-based methods examining stocks with different traits...
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Online Access: | http://hdl.handle.net/10508/15765 http://hdl.handle.net/10261/327336 https://doi.org/10.1016/j.fishres.2021.106197 |
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ftcsic:oai:digital.csic.es:10261/327336 2024-02-11T10:06:48+01:00 Applying length-based assessment methods to fishery resources in the Bay of Biscay and Iberian Coast ecoregion: Stock status and parameter sensitivity. Cousido-Rocha, Marta Cerviño, Santiago Alonso-Fernández, Alexandre Gil, Juan González-Herraiz, Isabel Rincón-Hidalgo, Margarita Ramos, Fernando Rodríguez-Cabello, Cristina Sampedro-Pastor, Paz Vila, Yolanda Pennino, María Gracia Océan atlantique Atlantique Nord Atlantic Ocean Atlántico Norte Océano Atlántico ICES North Atlantic 2022-04-01 http://hdl.handle.net/10508/15765 http://hdl.handle.net/10261/327336 https://doi.org/10.1016/j.fishres.2021.106197 en eng 2999-01-01 Centro Oceanográfico de Vigo AM https://www.sciencedirect.com/science/article/abs/pii/S0165783621003258?via%3Dihub Fisheries Research, 248. 2022: 106197-106197 0165-7836 http://hdl.handle.net/10508/15765 http://hdl.handle.net/10261/327336 doi:10.1016/j.fishres.2021.106197 50095 embargo_29990101 Pesquerías Data-limited fisheries Centro Oceanográfico de Vigo Stock assessment LBI LBSPR fish fishery resources radio length rights artículo http://purl.org/coar/resource_type/c_6501 2022 ftcsic https://doi.org/10.1016/j.fishres.2021.106197 2024-01-16T11:48:56Z Length-based methods have been widely applied to estimate biological parameters and understand the dynamics of marine resource populations within data-limited stocks. However, to date few studies have tested the sensitivity of parameters in length-based methods examining stocks with different traits and fishery contexts. In the Bay of Biscay and the Iberian Coast ecoregion, SE Europe (International Council for the Exploration of the Sea - ICES, Divisions 8 and 9a), many commercial resources are considered data-limited, and either little is known about their fisheries stock statuses or gaps remain in currently available assessments. Therefore, this study focuses on two of the most used length-based methods, which ICES considers to be the most appropriate to evaluate data-limited stocks, namely length-based indicators (LBI) and the length-based spawning potential ratio (LBSPR). Both methods have been applied to assess the stock statuses of various relevant species in the study area, such as: the small-spotted catshark (Scyliorhinus canicula), European anchovy (Engraulis encrasicolus), blackspot seabream (Pagellus bogaraveo), pouting (Trisopterus luscus), pollack (Pollachius pollachius), and Norway lobster (Nephrops norvegicus). For each stock, model results were compared with available knowledge on their current status. Furthermore, this paper discusses whether unexpected results are related to violations of the main model assumptions (constant total mortality and recruitment, and logistic selectivity) or to a lack of representativeness of stock length composition. A sensitivity analysis was conducted on the two most important input parameters: L∞ (von Bertalanffy asymptotic average maximum body size) and M/k (ratio of natural mortality to von Bertalanffy growth rate). This analysis concluded that the variation/misspecification of both parameters (M/k and L∞) had a considerable impact on the results given by both methods, and that this effect is more significant in the case of the L∞ parameter, thus highlighting ... Article in Journal/Newspaper North Atlantic Digital.CSIC (Spanish National Research Council) Canicula ENVELOPE(-58.515,-58.515,-63.717,-63.717) Norway Fisheries Research 248 106197 |
institution |
Open Polar |
collection |
Digital.CSIC (Spanish National Research Council) |
op_collection_id |
ftcsic |
language |
English |
topic |
Pesquerías Data-limited fisheries Centro Oceanográfico de Vigo Stock assessment LBI LBSPR fish fishery resources radio length rights |
spellingShingle |
Pesquerías Data-limited fisheries Centro Oceanográfico de Vigo Stock assessment LBI LBSPR fish fishery resources radio length rights Cousido-Rocha, Marta Cerviño, Santiago Alonso-Fernández, Alexandre Gil, Juan González-Herraiz, Isabel Rincón-Hidalgo, Margarita Ramos, Fernando Rodríguez-Cabello, Cristina Sampedro-Pastor, Paz Vila, Yolanda Pennino, María Gracia Applying length-based assessment methods to fishery resources in the Bay of Biscay and Iberian Coast ecoregion: Stock status and parameter sensitivity. |
topic_facet |
Pesquerías Data-limited fisheries Centro Oceanográfico de Vigo Stock assessment LBI LBSPR fish fishery resources radio length rights |
description |
Length-based methods have been widely applied to estimate biological parameters and understand the dynamics of marine resource populations within data-limited stocks. However, to date few studies have tested the sensitivity of parameters in length-based methods examining stocks with different traits and fishery contexts. In the Bay of Biscay and the Iberian Coast ecoregion, SE Europe (International Council for the Exploration of the Sea - ICES, Divisions 8 and 9a), many commercial resources are considered data-limited, and either little is known about their fisheries stock statuses or gaps remain in currently available assessments. Therefore, this study focuses on two of the most used length-based methods, which ICES considers to be the most appropriate to evaluate data-limited stocks, namely length-based indicators (LBI) and the length-based spawning potential ratio (LBSPR). Both methods have been applied to assess the stock statuses of various relevant species in the study area, such as: the small-spotted catshark (Scyliorhinus canicula), European anchovy (Engraulis encrasicolus), blackspot seabream (Pagellus bogaraveo), pouting (Trisopterus luscus), pollack (Pollachius pollachius), and Norway lobster (Nephrops norvegicus). For each stock, model results were compared with available knowledge on their current status. Furthermore, this paper discusses whether unexpected results are related to violations of the main model assumptions (constant total mortality and recruitment, and logistic selectivity) or to a lack of representativeness of stock length composition. A sensitivity analysis was conducted on the two most important input parameters: L∞ (von Bertalanffy asymptotic average maximum body size) and M/k (ratio of natural mortality to von Bertalanffy growth rate). This analysis concluded that the variation/misspecification of both parameters (M/k and L∞) had a considerable impact on the results given by both methods, and that this effect is more significant in the case of the L∞ parameter, thus highlighting ... |
format |
Article in Journal/Newspaper |
author |
Cousido-Rocha, Marta Cerviño, Santiago Alonso-Fernández, Alexandre Gil, Juan González-Herraiz, Isabel Rincón-Hidalgo, Margarita Ramos, Fernando Rodríguez-Cabello, Cristina Sampedro-Pastor, Paz Vila, Yolanda Pennino, María Gracia |
author_facet |
Cousido-Rocha, Marta Cerviño, Santiago Alonso-Fernández, Alexandre Gil, Juan González-Herraiz, Isabel Rincón-Hidalgo, Margarita Ramos, Fernando Rodríguez-Cabello, Cristina Sampedro-Pastor, Paz Vila, Yolanda Pennino, María Gracia |
author_sort |
Cousido-Rocha, Marta |
title |
Applying length-based assessment methods to fishery resources in the Bay of Biscay and Iberian Coast ecoregion: Stock status and parameter sensitivity. |
title_short |
Applying length-based assessment methods to fishery resources in the Bay of Biscay and Iberian Coast ecoregion: Stock status and parameter sensitivity. |
title_full |
Applying length-based assessment methods to fishery resources in the Bay of Biscay and Iberian Coast ecoregion: Stock status and parameter sensitivity. |
title_fullStr |
Applying length-based assessment methods to fishery resources in the Bay of Biscay and Iberian Coast ecoregion: Stock status and parameter sensitivity. |
title_full_unstemmed |
Applying length-based assessment methods to fishery resources in the Bay of Biscay and Iberian Coast ecoregion: Stock status and parameter sensitivity. |
title_sort |
applying length-based assessment methods to fishery resources in the bay of biscay and iberian coast ecoregion: stock status and parameter sensitivity. |
publishDate |
2022 |
url |
http://hdl.handle.net/10508/15765 http://hdl.handle.net/10261/327336 https://doi.org/10.1016/j.fishres.2021.106197 |
op_coverage |
Océan atlantique Atlantique Nord Atlantic Ocean Atlántico Norte Océano Atlántico ICES North Atlantic |
long_lat |
ENVELOPE(-58.515,-58.515,-63.717,-63.717) |
geographic |
Canicula Norway |
geographic_facet |
Canicula Norway |
genre |
North Atlantic |
genre_facet |
North Atlantic |
op_relation |
2999-01-01 Centro Oceanográfico de Vigo AM https://www.sciencedirect.com/science/article/abs/pii/S0165783621003258?via%3Dihub Fisheries Research, 248. 2022: 106197-106197 0165-7836 http://hdl.handle.net/10508/15765 http://hdl.handle.net/10261/327336 doi:10.1016/j.fishres.2021.106197 50095 |
op_rights |
embargo_29990101 |
op_doi |
https://doi.org/10.1016/j.fishres.2021.106197 |
container_title |
Fisheries Research |
container_volume |
248 |
container_start_page |
106197 |
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1790604766313709568 |