Role of the preferred habitat availability for small shark (Mustelus schmitti) on the interannual variation of abundance in a large Southwest Atlantic Coastal System (El Rincón, 39...

Autores
Jaureguizar, Andrés Javier; Wiff, Rodrigo; Luz Clara Tejedor, Moira
Año de publicación
2016
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Description of habitat preferences in marine fishes is important in order to understand their spatial distribution and ecology, and are one of the first steps towards conservation. In this paper, we evaluate the influence of environmental conditions (temperature, salinity), location (latitude-longitude, depth), time (year) and availability of preferred habitat on the relative biomass of the narrownose smooth-hound shark (Mustelus schmitti) in El Rincón (∼38°-41°S < 50 m), Argentina. We used an extensive database of bottom trawl surveys conducted yearly during southern spring (November-December) between 1994 and 2012, containing 502 sampling stations where relative biomass, environmental variables and location are registered. Relative biomass was modeled using Generalized Additive Models (GAM) in which zeros observations were incorporated using a Tweedie distribution, and model selection was carried out using generalized cross validation values (CGV) and Akaike information criterion (AIC). The best models selected indicate that a combination of location (nearshore areas), depth (<30 m) and salinity (≤ 33.5) was significant in explaining relative biomass across time. In addition, the percentage of preferred habitat by M. schmitti, was also a significant predictor for relative biomass and was correlated to the main freshwater discharge previous to the fisheries survey. Discussion focused on understanding the spatial ecology of this species. We highlighted how environmental variables become a key issue to understand biomass indices derived from fishery-independent surveys.
Fil: Jaureguizar, Andrés Javier. Instituto Nacional de Investigaciones y Desarrollo Pesquero; Argentina. Provincia de Buenos Aires. Gobernación. Comisión de Investigaciones Científicas; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mar del Plata; Argentina
Fil: Wiff, Rodrigo. Universidad Católica de Chile; Chile. Pontificia Universidad Católica de Chile; Chile
Fil: Luz Clara Tejedor, Moira. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mar del Plata; Argentina. Instituto Nacional de Investigaciones y Desarrollo Pesquero; Argentina
Materia
ENVIRONMENTAL INFLUENCE
HABITAT PREFERENCES
MUSTELUS SCHMITTI
SMALL SHARK
SOUTHWEST ATLANTIC COASTAL SYSTEM
SPATIAL AND TEMPORAL DISTRIBUTION
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/179725
Acceder
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oai_identifier_str oai:ri.conicet.gov.ar:11336/179725
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Role of the preferred habitat availability for small shark (Mustelus schmitti) on the interannual variation of abundance in a large Southwest Atlantic Coastal System (El Rincón, 39°-41°S)Jaureguizar, Andrés JavierWiff, RodrigoLuz Clara Tejedor, MoiraENVIRONMENTAL INFLUENCEHABITAT PREFERENCESMUSTELUS SCHMITTISMALL SHARKSOUTHWEST ATLANTIC COASTAL SYSTEMSPATIAL AND TEMPORAL DISTRIBUTIONhttps://purl.org/becyt/ford/1.5https://purl.org/becyt/ford/1Description of habitat preferences in marine fishes is important in order to understand their spatial distribution and ecology, and are one of the first steps towards conservation. In this paper, we evaluate the influence of environmental conditions (temperature, salinity), location (latitude-longitude, depth), time (year) and availability of preferred habitat on the relative biomass of the narrownose smooth-hound shark (Mustelus schmitti) in El Rincón (∼38°-41°S < 50 m), Argentina. We used an extensive database of bottom trawl surveys conducted yearly during southern spring (November-December) between 1994 and 2012, containing 502 sampling stations where relative biomass, environmental variables and location are registered. Relative biomass was modeled using Generalized Additive Models (GAM) in which zeros observations were incorporated using a Tweedie distribution, and model selection was carried out using generalized cross validation values (CGV) and Akaike information criterion (AIC). The best models selected indicate that a combination of location (nearshore areas), depth (<30 m) and salinity (≤ 33.5) was significant in explaining relative biomass across time. In addition, the percentage of preferred habitat by M. schmitti, was also a significant predictor for relative biomass and was correlated to the main freshwater discharge previous to the fisheries survey. Discussion focused on understanding the spatial ecology of this species. We highlighted how environmental variables become a key issue to understand biomass indices derived from fishery-independent surveys.Fil: Jaureguizar, Andrés Javier. Instituto Nacional de Investigaciones y Desarrollo Pesquero; Argentina. Provincia de Buenos Aires. Gobernación. Comisión de Investigaciones Científicas; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mar del Plata; ArgentinaFil: Wiff, Rodrigo. Universidad Católica de Chile; Chile. Pontificia Universidad Católica de Chile; ChileFil: Luz Clara Tejedor, Moira. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mar del Plata; Argentina. Instituto Nacional de Investigaciones y Desarrollo Pesquero; ArgentinaEDP Sciences2016-12info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/179725Jaureguizar, Andrés Javier; Wiff, Rodrigo; Luz Clara Tejedor, Moira; Role of the preferred habitat availability for small shark (Mustelus schmitti) on the interannual variation of abundance in a large Southwest Atlantic Coastal System (El Rincón, 39°-41°S); EDP Sciences; Aquatic Living Resources; 29; 3; 12-2016; 1-100990-7440CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/https://www.alr-journal.org/articles/alr/abs/2016/03/alr150055/alr150055.htmlinfo:eu-repo/semantics/altIdentifier/doi/10.1051/alr/2016031info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-10-22T11:03:13Zoai:ri.conicet.gov.ar:11336/179725instacron:CONICETInstitucionalhttp://ri.conicet.gov.ar/Organismo científico-tecnológicoNo correspondehttp://ri.conicet.gov.ar/oai/requestdasensio@conicet.gov.ar; lcarlino@conicet.gov.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:34982025-10-22 11:03:14.261CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Role of the preferred habitat availability for small shark (Mustelus schmitti) on the interannual variation of abundance in a large Southwest Atlantic Coastal System (El Rincón, 39°-41°S)
title Role of the preferred habitat availability for small shark (Mustelus schmitti) on the interannual variation of abundance in a large Southwest Atlantic Coastal System (El Rincón, 39°-41°S)
spellingShingle Role of the preferred habitat availability for small shark (Mustelus schmitti) on the interannual variation of abundance in a large Southwest Atlantic Coastal System (El Rincón, 39°-41°S)
Jaureguizar, Andrés Javier
ENVIRONMENTAL INFLUENCE
HABITAT PREFERENCES
MUSTELUS SCHMITTI
SMALL SHARK
SOUTHWEST ATLANTIC COASTAL SYSTEM
SPATIAL AND TEMPORAL DISTRIBUTION
title_short Role of the preferred habitat availability for small shark (Mustelus schmitti) on the interannual variation of abundance in a large Southwest Atlantic Coastal System (El Rincón, 39°-41°S)
title_full Role of the preferred habitat availability for small shark (Mustelus schmitti) on the interannual variation of abundance in a large Southwest Atlantic Coastal System (El Rincón, 39°-41°S)
title_fullStr Role of the preferred habitat availability for small shark (Mustelus schmitti) on the interannual variation of abundance in a large Southwest Atlantic Coastal System (El Rincón, 39°-41°S)
title_full_unstemmed Role of the preferred habitat availability for small shark (Mustelus schmitti) on the interannual variation of abundance in a large Southwest Atlantic Coastal System (El Rincón, 39°-41°S)
title_sort Role of the preferred habitat availability for small shark (Mustelus schmitti) on the interannual variation of abundance in a large Southwest Atlantic Coastal System (El Rincón, 39°-41°S)
dc.creator.none.fl_str_mv Jaureguizar, Andrés Javier
Wiff, Rodrigo
Luz Clara Tejedor, Moira
author Jaureguizar, Andrés Javier
author_facet Jaureguizar, Andrés Javier
Wiff, Rodrigo
Luz Clara Tejedor, Moira
author_role author
author2 Wiff, Rodrigo
Luz Clara Tejedor, Moira
author2_role author
author
dc.subject.none.fl_str_mv ENVIRONMENTAL INFLUENCE
HABITAT PREFERENCES
MUSTELUS SCHMITTI
SMALL SHARK
SOUTHWEST ATLANTIC COASTAL SYSTEM
SPATIAL AND TEMPORAL DISTRIBUTION
topic ENVIRONMENTAL INFLUENCE
HABITAT PREFERENCES
MUSTELUS SCHMITTI
SMALL SHARK
SOUTHWEST ATLANTIC COASTAL SYSTEM
SPATIAL AND TEMPORAL DISTRIBUTION
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.5
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv Description of habitat preferences in marine fishes is important in order to understand their spatial distribution and ecology, and are one of the first steps towards conservation. In this paper, we evaluate the influence of environmental conditions (temperature, salinity), location (latitude-longitude, depth), time (year) and availability of preferred habitat on the relative biomass of the narrownose smooth-hound shark (Mustelus schmitti) in El Rincón (∼38°-41°S < 50 m), Argentina. We used an extensive database of bottom trawl surveys conducted yearly during southern spring (November-December) between 1994 and 2012, containing 502 sampling stations where relative biomass, environmental variables and location are registered. Relative biomass was modeled using Generalized Additive Models (GAM) in which zeros observations were incorporated using a Tweedie distribution, and model selection was carried out using generalized cross validation values (CGV) and Akaike information criterion (AIC). The best models selected indicate that a combination of location (nearshore areas), depth (<30 m) and salinity (≤ 33.5) was significant in explaining relative biomass across time. In addition, the percentage of preferred habitat by M. schmitti, was also a significant predictor for relative biomass and was correlated to the main freshwater discharge previous to the fisheries survey. Discussion focused on understanding the spatial ecology of this species. We highlighted how environmental variables become a key issue to understand biomass indices derived from fishery-independent surveys.
Fil: Jaureguizar, Andrés Javier. Instituto Nacional de Investigaciones y Desarrollo Pesquero; Argentina. Provincia de Buenos Aires. Gobernación. Comisión de Investigaciones Científicas; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mar del Plata; Argentina
Fil: Wiff, Rodrigo. Universidad Católica de Chile; Chile. Pontificia Universidad Católica de Chile; Chile
Fil: Luz Clara Tejedor, Moira. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mar del Plata; Argentina. Instituto Nacional de Investigaciones y Desarrollo Pesquero; Argentina
description Description of habitat preferences in marine fishes is important in order to understand their spatial distribution and ecology, and are one of the first steps towards conservation. In this paper, we evaluate the influence of environmental conditions (temperature, salinity), location (latitude-longitude, depth), time (year) and availability of preferred habitat on the relative biomass of the narrownose smooth-hound shark (Mustelus schmitti) in El Rincón (∼38°-41°S < 50 m), Argentina. We used an extensive database of bottom trawl surveys conducted yearly during southern spring (November-December) between 1994 and 2012, containing 502 sampling stations where relative biomass, environmental variables and location are registered. Relative biomass was modeled using Generalized Additive Models (GAM) in which zeros observations were incorporated using a Tweedie distribution, and model selection was carried out using generalized cross validation values (CGV) and Akaike information criterion (AIC). The best models selected indicate that a combination of location (nearshore areas), depth (<30 m) and salinity (≤ 33.5) was significant in explaining relative biomass across time. In addition, the percentage of preferred habitat by M. schmitti, was also a significant predictor for relative biomass and was correlated to the main freshwater discharge previous to the fisheries survey. Discussion focused on understanding the spatial ecology of this species. We highlighted how environmental variables become a key issue to understand biomass indices derived from fishery-independent surveys.
publishDate 2016
dc.date.none.fl_str_mv 2016-12
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
http://purl.org/coar/resource_type/c_6501
info:ar-repo/semantics/articulo
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/11336/179725
Jaureguizar, Andrés Javier; Wiff, Rodrigo; Luz Clara Tejedor, Moira; Role of the preferred habitat availability for small shark (Mustelus schmitti) on the interannual variation of abundance in a large Southwest Atlantic Coastal System (El Rincón, 39°-41°S); EDP Sciences; Aquatic Living Resources; 29; 3; 12-2016; 1-10
0990-7440
CONICET Digital
CONICET
url http://hdl.handle.net/11336/179725
identifier_str_mv Jaureguizar, Andrés Javier; Wiff, Rodrigo; Luz Clara Tejedor, Moira; Role of the preferred habitat availability for small shark (Mustelus schmitti) on the interannual variation of abundance in a large Southwest Atlantic Coastal System (El Rincón, 39°-41°S); EDP Sciences; Aquatic Living Resources; 29; 3; 12-2016; 1-10
0990-7440
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/url/https://www.alr-journal.org/articles/alr/abs/2016/03/alr150055/alr150055.html
info:eu-repo/semantics/altIdentifier/doi/10.1051/alr/2016031
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.format.none.fl_str_mv application/pdf
application/pdf
dc.publisher.none.fl_str_mv EDP Sciences
publisher.none.fl_str_mv EDP Sciences
dc.source.none.fl_str_mv reponame:CONICET Digital (CONICET)
instname:Consejo Nacional de Investigaciones Científicas y Técnicas
reponame_str CONICET Digital (CONICET)
collection CONICET Digital (CONICET)
instname_str Consejo Nacional de Investigaciones Científicas y Técnicas
repository.name.fl_str_mv CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicas
repository.mail.fl_str_mv dasensio@conicet.gov.ar; lcarlino@conicet.gov.ar
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score 12.982451

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