Fishers' perception of the interaction between the South American sea lions and the Chinook salmon fishery in southern Chile

Abstract We studied how the South American sea lion (SASL, Otaria flavescens) interacts with the operation of an artisanal fishery of Chinook salmon, a non-native species in Chile, using a combination of biological and social approaches, including a valuation by fishers about this interaction. Durin...

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Autores principales:	M. Sanguinetti, B. Cid-Aguayo, A. Guerrero, M. Durán, D. Gomez-Uchida, M. Sepúlveda
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2021
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/8273b84801eb456198fea6ae1e375d44
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spelling	oai:doaj.org-article:8273b84801eb456198fea6ae1e375d442021-12-02T18:30:51ZFishers' perception of the interaction between the South American sea lions and the Chinook salmon fishery in southern Chile10.1038/s41598-021-93675-x2045-2322https://doaj.org/article/8273b84801eb456198fea6ae1e375d442021-07-01T00:00:00Zhttps://doi.org/10.1038/s41598-021-93675-xhttps://doaj.org/toc/2045-2322Abstract We studied how the South American sea lion (SASL, Otaria flavescens) interacts with the operation of an artisanal fishery of Chinook salmon, a non-native species in Chile, using a combination of biological and social approaches, including a valuation by fishers about this interaction. During austral summer of 2019, an observer onboard artisanal fishing boats characterized the attack behavior of SASLs to gillnet-captured Chinook salmon during 33 hauls and analyzed which factors may affect the intensity of attacks. To analyze the relationship between fishers and SASLs, a Likert scale about the perception and views about nature was applied. A total of 23 interviews—including 35 open and 16 closed questions—with fishers were conducted to describe how they perceived the interactions with SASLs. Interactions with SASLs were recorded in 35% of the fishing events and varied depending on both operational factors, such as the number of boats, as well as environmental factors, such as moon’s luminosity. Even though SASL interactions resulted in seven fish (~ 70 kg) damaged of a total catch of 2815 kg (2.5%) during the survey, boats with a damaged catch by SASL lost up to 11% of their revenue. This is consistent with 87% of the interviewed fishers who considered that the conflict with the SASL negatively impacts their activity and results in economic losses. A negative perception towards SASLs likely results from personal experience and revenue loss, even though impacts of SASL interactions at the scale of the entire fishery may be less important. While older fishers with less formal education have a productivist and instrumental focus, younger fishers with a more sustainable and conservationist view of fishing offer an opportunity to lead an improved local understanding of the relationship between salmon, SASLs, and humans.M. SanguinettiB. Cid-AguayoA. GuerreroM. DuránD. Gomez-UchidaM. SepúlvedaNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 11, Iss 1, Pp 1-12 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q M. Sanguinetti B. Cid-Aguayo A. Guerrero M. Durán D. Gomez-Uchida M. Sepúlveda Fishers' perception of the interaction between the South American sea lions and the Chinook salmon fishery in southern Chile
description	Abstract We studied how the South American sea lion (SASL, Otaria flavescens) interacts with the operation of an artisanal fishery of Chinook salmon, a non-native species in Chile, using a combination of biological and social approaches, including a valuation by fishers about this interaction. During austral summer of 2019, an observer onboard artisanal fishing boats characterized the attack behavior of SASLs to gillnet-captured Chinook salmon during 33 hauls and analyzed which factors may affect the intensity of attacks. To analyze the relationship between fishers and SASLs, a Likert scale about the perception and views about nature was applied. A total of 23 interviews—including 35 open and 16 closed questions—with fishers were conducted to describe how they perceived the interactions with SASLs. Interactions with SASLs were recorded in 35% of the fishing events and varied depending on both operational factors, such as the number of boats, as well as environmental factors, such as moon’s luminosity. Even though SASL interactions resulted in seven fish (~ 70 kg) damaged of a total catch of 2815 kg (2.5%) during the survey, boats with a damaged catch by SASL lost up to 11% of their revenue. This is consistent with 87% of the interviewed fishers who considered that the conflict with the SASL negatively impacts their activity and results in economic losses. A negative perception towards SASLs likely results from personal experience and revenue loss, even though impacts of SASL interactions at the scale of the entire fishery may be less important. While older fishers with less formal education have a productivist and instrumental focus, younger fishers with a more sustainable and conservationist view of fishing offer an opportunity to lead an improved local understanding of the relationship between salmon, SASLs, and humans.
format	article
author	M. Sanguinetti B. Cid-Aguayo A. Guerrero M. Durán D. Gomez-Uchida M. Sepúlveda
author_facet	M. Sanguinetti B. Cid-Aguayo A. Guerrero M. Durán D. Gomez-Uchida M. Sepúlveda
author_sort	M. Sanguinetti
title	Fishers' perception of the interaction between the South American sea lions and the Chinook salmon fishery in southern Chile
title_short	Fishers' perception of the interaction between the South American sea lions and the Chinook salmon fishery in southern Chile
title_full	Fishers' perception of the interaction between the South American sea lions and the Chinook salmon fishery in southern Chile
title_fullStr	Fishers' perception of the interaction between the South American sea lions and the Chinook salmon fishery in southern Chile
title_full_unstemmed	Fishers' perception of the interaction between the South American sea lions and the Chinook salmon fishery in southern Chile
title_sort	fishers' perception of the interaction between the south american sea lions and the chinook salmon fishery in southern chile
publisher	Nature Portfolio
publishDate	2021
url	https://doaj.org/article/8273b84801eb456198fea6ae1e375d44
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Fishers' perception of the interaction between the South American sea lions and the Chinook salmon fishery in southern Chile

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