Evidence of illegal catch in the benthic artisanal fisheries of central Chile: patterns across species and management regimes

ABSTRACT Non-compliance with fishing regulations is a widespread phenomenon in fisheries worldwide, jeopardizing the recovery of stocks and ecosystem services. There is an urgent need to fill the gaps in our understanding of the scale and nature of illegal fishing in artisanal fisheries, balancing t...

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Autores principales:	Fernández,Miriam, Kriegl,Michael, Garmendia,Vladimir, Aguilar,Ainara, Subida,María Dulce
Lenguaje:	English
Publicado:	Pontificia Universidad Católica de Valparaíso. Facultad de Recursos Naturales. Escuela de Ciencias del Mar 2020
Materias:	minimum legal size effort displacement TURF squeeze effect spatial management
Acceso en línea:	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-560X2020000200287
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spelling	oai:scielo:S0718-560X20200002002872020-05-25Evidence of illegal catch in the benthic artisanal fisheries of central Chile: patterns across species and management regimesFernández,MiriamKriegl,MichaelGarmendia,VladimirAguilar,AinaraSubida,María Dulce minimum legal size effort displacement TURF squeeze effect spatial management ABSTRACT Non-compliance with fishing regulations is a widespread phenomenon in fisheries worldwide, jeopardizing the recovery of stocks and ecosystem services. There is an urgent need to fill the gaps in our understanding of the scale and nature of illegal fishing in artisanal fisheries, balancing the advances made in industrial fisheries. We explored patterns of fisher compliance with the existing minimum legal size (MLS) regulation in the small-scale benthic fisheries of central Chile. We focus on two of the most conspicuous species (loco Concholepas concholepas and keyhole limpets Fissurella spp.) and comparing two management regimes: management areas (MAs; local name for territorial use rights for fisheries) and open access areas (OAAs; no spatial entry restrictions). We also evaluated the effect of the spatial distribution of MAs, which determines the availability of OAAs on compliance. For both species, we measured the size of individuals in the catch in two consecutive years. We developed an index that accounts for the availability of open access areas per fisher. We found that a) the number of undersized individuals in the catch in OAAs is enormous, b) management regime influences both the median size and fraction of the undersized catch, and c) as the availability of OAAs per fisher decreases, illegal fishing increases, demonstrating the need to manage the levels of effort displacement in designing area-based instruments for management and conservation. Our findings also highlight the need to a) analyze the benefits of area-based instruments at the seascape scale, and b) develop and adapt instruments to prevent illegal fishing.info:eu-repo/semantics/openAccessPontificia Universidad Católica de Valparaíso. Facultad de Recursos Naturales. Escuela de Ciencias del MarLatin american journal of aquatic research v.48 n.2 20202020-05-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-560X2020000200287en10.3856/vol48-issue2-fulltext-2475
institution	Scielo Chile
collection	Scielo Chile
language	English
topic	minimum legal size effort displacement TURF squeeze effect spatial management
spellingShingle	minimum legal size effort displacement TURF squeeze effect spatial management Fernández,Miriam Kriegl,Michael Garmendia,Vladimir Aguilar,Ainara Subida,María Dulce Evidence of illegal catch in the benthic artisanal fisheries of central Chile: patterns across species and management regimes
description	ABSTRACT Non-compliance with fishing regulations is a widespread phenomenon in fisheries worldwide, jeopardizing the recovery of stocks and ecosystem services. There is an urgent need to fill the gaps in our understanding of the scale and nature of illegal fishing in artisanal fisheries, balancing the advances made in industrial fisheries. We explored patterns of fisher compliance with the existing minimum legal size (MLS) regulation in the small-scale benthic fisheries of central Chile. We focus on two of the most conspicuous species (loco Concholepas concholepas and keyhole limpets Fissurella spp.) and comparing two management regimes: management areas (MAs; local name for territorial use rights for fisheries) and open access areas (OAAs; no spatial entry restrictions). We also evaluated the effect of the spatial distribution of MAs, which determines the availability of OAAs on compliance. For both species, we measured the size of individuals in the catch in two consecutive years. We developed an index that accounts for the availability of open access areas per fisher. We found that a) the number of undersized individuals in the catch in OAAs is enormous, b) management regime influences both the median size and fraction of the undersized catch, and c) as the availability of OAAs per fisher decreases, illegal fishing increases, demonstrating the need to manage the levels of effort displacement in designing area-based instruments for management and conservation. Our findings also highlight the need to a) analyze the benefits of area-based instruments at the seascape scale, and b) develop and adapt instruments to prevent illegal fishing.
author	Fernández,Miriam Kriegl,Michael Garmendia,Vladimir Aguilar,Ainara Subida,María Dulce
author_facet	Fernández,Miriam Kriegl,Michael Garmendia,Vladimir Aguilar,Ainara Subida,María Dulce
author_sort	Fernández,Miriam
title	Evidence of illegal catch in the benthic artisanal fisheries of central Chile: patterns across species and management regimes
title_short	Evidence of illegal catch in the benthic artisanal fisheries of central Chile: patterns across species and management regimes
title_full	Evidence of illegal catch in the benthic artisanal fisheries of central Chile: patterns across species and management regimes
title_fullStr	Evidence of illegal catch in the benthic artisanal fisheries of central Chile: patterns across species and management regimes
title_full_unstemmed	Evidence of illegal catch in the benthic artisanal fisheries of central Chile: patterns across species and management regimes
title_sort	evidence of illegal catch in the benthic artisanal fisheries of central chile: patterns across species and management regimes
publisher	Pontificia Universidad Católica de Valparaíso. Facultad de Recursos Naturales. Escuela de Ciencias del Mar
publishDate	2020
url	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-560X2020000200287
work_keys_str_mv	AT fernandezmiriam evidenceofillegalcatchinthebenthicartisanalfisheriesofcentralchilepatternsacrossspeciesandmanagementregimes AT krieglmichael evidenceofillegalcatchinthebenthicartisanalfisheriesofcentralchilepatternsacrossspeciesandmanagementregimes AT garmendiavladimir evidenceofillegalcatchinthebenthicartisanalfisheriesofcentralchilepatternsacrossspeciesandmanagementregimes AT aguilarainara evidenceofillegalcatchinthebenthicartisanalfisheriesofcentralchilepatternsacrossspeciesandmanagementregimes AT subidamariadulce evidenceofillegalcatchinthebenthicartisanalfisheriesofcentralchilepatternsacrossspeciesandmanagementregimes
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Evidence of illegal catch in the benthic artisanal fisheries of central Chile: patterns across species and management regimes

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