Identification of nurseries areas of juvenile prochilodus lineatus (valenciennes, 1836) (characiformes: prochilodontidae) by scale and otolith morphometry and microchemistry

The streaked prochilod Prochilodus lineatus (Valenciennes) is a commercially freshwater species from South America, distributed in the Plata basin. In the present work the morphometry (circularity, rectangularity, form factor, OL/OW and ellipticity indices) and chemistry (Sr:Ca, Ba:Ca, Zn:Ca) of l...

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Autores principales: Avigliano, Esteban, Callicó Fortunato, Roberta, Biolé, Fernanda, Domanico, Alejandro, De Simone, Silvia, Neiff, Juan José, Volpedo, Alejandra Vanina
Formato: Artículo
Lenguaje:Inglés
Publicado: Sociedade Brasileira de Ictiologia 2022
Materias:
Connectivity
Geocrochemistry
Geometric morphometrics
Plata Basin
Streaked prochilod
Acceso en línea:http://repositorio.unne.edu.ar/handle/123456789/30711
Aporte de:
RIUNNE - Repositorio Institucional de la Universidad Nacional del Nordeste (UNNE) de Universidad Nacional del Nordeste
id I48-R184-123456789-30711
record_format dspace
spelling I48-R184-123456789-307112025-03-06T11:01:33Z Identification of nurseries areas of juvenile prochilodus lineatus (valenciennes, 1836) (characiformes: prochilodontidae) by scale and otolith morphometry and microchemistry Avigliano, Esteban Callicó Fortunato, Roberta Biolé, Fernanda Domanico, Alejandro De Simone, Silvia Neiff, Juan José Volpedo, Alejandra Vanina Connectivity Geocrochemistry Geometric morphometrics Plata Basin Streaked prochilod The streaked prochilod Prochilodus lineatus (Valenciennes) is a commercially freshwater species from South America, distributed in the Plata basin. In the present work the morphometry (circularity, rectangularity, form factor, OL/OW and ellipticity indices) and chemistry (Sr:Ca, Ba:Ca, Zn:Ca) of lapilli otolith, and geometric morphometry of scales of streaked prochilod juveniles, in two sites in the Plata basin (Uruguay River and Estrella Wetland), were compared to determine if they are area-specific and to identify possible breeding areas. Otolith Ba:Ca ratios was 0.017±0.003 mmol/ mol for Uruguay River while for Estrella Wetland individuals was bellow the detection limits. Zn:Ca ratios tended to be higher for the latter (0.03±0.002 mmol/mol). Significantly high circularity and low rectangularity values were obtained for Estrella Wetland otoliths (p < 0.05), while no significant differences for form factor, OL/OW and ellipticity were observed between sampling sites. Considering all scale geometric morphometry variables, discriminant analysis showed a good percentage of classification of individuals (90.5% for Estrella Wetland and 85.7 % for Uruguay River). These results indicate that the otolith microchemisty and morphometry (circularity and rectangularity indices) and scale morphometry are good markers of habitat and represent a potential tool for identification of streaked prochilod nursery areas. El sábalo Prochilodus lineatus (Valenciennes) es una especie de importancia comercial de agua dulce de Sudamérica, distribuida en la cuenca del Plata. En este trabajo se comparó la morfometría (índices de circularidad, rectangularidad, factor de forma, OL/OW y elipticidad) y microquímica (Sr:Ca, Ba:Ca y Zn:Ca) del otolito lapilli, y la morfometría geométrica de las escamas de sábalos juveniles capturados en dos sitios de la cuenca del Plata (Río Uruguay y bañado la Estrella), para determinar si existen diferencias área-especificas e identificar posibles sitios de cría. La relación Ba:Ca del otolito fue 0.017±0.003 mmol/mol para el río Uruguay mientras que estuvo por debajo del límite de detección para los individuos del bañado la Estrella. La relación Zn:Ca tendió a ser más alta en el bañado la Estrella (0.03±0.002 mmol/mol). Se obtuvieron valores significativamente altos de circularidad y bajos de rectangularidad para el bañado la Estrella (p < 0.05), mientras que no se hallaron diferencias para el factor de forma, OL/OW y elipticidad. Considerando la morfometría geométrica de las escamas, el análisis discriminante mostró buenos porcentajes de clasificación (90.5% para el bañado la Estrella y 85.7 % para el Río Uruguay). Estos resultados indican que la microquímica y morfometría del otolito (índices de rectangularidad y circularidad) y la morfometría de las escamas son buenos marcadores de hábitat y representan una herramienta potencial para la identificación de sitios de cría del sábalo. 2022-02-03T14:25:42Z 2022-02-03T14:25:42Z 2016 Artículo Avigliano, Esteban, et al., 2016. Identification of nurseries areas of juvenile prochilodus lineatus (valenciennes, 1836) (characiformes: prochilodontidae) by scale and otolith morphometry and microchemistry. Neotropical Ichthyology. Maringá: Sociedade Brasileira de Ictiologia, vol. 14, no. 3, p. 1-12. ISSN 1982-0224. 1982-0224 http://repositorio.unne.edu.ar/handle/123456789/30711 eng openAccess http://creativecommons.org/licenses/by-nc-nd/2.5/ar/ application/pdf application/pdf Sociedade Brasileira de Ictiologia Neotropical Ichthyology, 2016, vol. 14, no. 3, p. 1-12.
institution Universidad Nacional del Nordeste
institution_str I-48
repository_str R-184
collection RIUNNE - Repositorio Institucional de la Universidad Nacional del Nordeste (UNNE)
language Inglés
topic Connectivity
Geocrochemistry
Geometric morphometrics
Plata Basin
Streaked prochilod
spellingShingle Connectivity
Geocrochemistry
Geometric morphometrics
Plata Basin
Streaked prochilod
Avigliano, Esteban
Callicó Fortunato, Roberta
Biolé, Fernanda
Domanico, Alejandro
De Simone, Silvia
Neiff, Juan José
Volpedo, Alejandra Vanina
Identification of nurseries areas of juvenile prochilodus lineatus (valenciennes, 1836) (characiformes: prochilodontidae) by scale and otolith morphometry and microchemistry
topic_facet Connectivity
Geocrochemistry
Geometric morphometrics
Plata Basin
Streaked prochilod
description The streaked prochilod Prochilodus lineatus (Valenciennes) is a commercially freshwater species from South America, distributed in the Plata basin. In the present work the morphometry (circularity, rectangularity, form factor, OL/OW and ellipticity indices) and chemistry (Sr:Ca, Ba:Ca, Zn:Ca) of lapilli otolith, and geometric morphometry of scales of streaked prochilod juveniles, in two sites in the Plata basin (Uruguay River and Estrella Wetland), were compared to determine if they are area-specific and to identify possible breeding areas. Otolith Ba:Ca ratios was 0.017±0.003 mmol/ mol for Uruguay River while for Estrella Wetland individuals was bellow the detection limits. Zn:Ca ratios tended to be higher for the latter (0.03±0.002 mmol/mol). Significantly high circularity and low rectangularity values were obtained for Estrella Wetland otoliths (p < 0.05), while no significant differences for form factor, OL/OW and ellipticity were observed between sampling sites. Considering all scale geometric morphometry variables, discriminant analysis showed a good percentage of classification of individuals (90.5% for Estrella Wetland and 85.7 % for Uruguay River). These results indicate that the otolith microchemisty and morphometry (circularity and rectangularity indices) and scale morphometry are good markers of habitat and represent a potential tool for identification of streaked prochilod nursery areas.
format Artículo
author Avigliano, Esteban
Callicó Fortunato, Roberta
Biolé, Fernanda
Domanico, Alejandro
De Simone, Silvia
Neiff, Juan José
Volpedo, Alejandra Vanina
author_facet Avigliano, Esteban
Callicó Fortunato, Roberta
Biolé, Fernanda
Domanico, Alejandro
De Simone, Silvia
Neiff, Juan José
Volpedo, Alejandra Vanina
author_sort Avigliano, Esteban
title Identification of nurseries areas of juvenile prochilodus lineatus (valenciennes, 1836) (characiformes: prochilodontidae) by scale and otolith morphometry and microchemistry
title_short Identification of nurseries areas of juvenile prochilodus lineatus (valenciennes, 1836) (characiformes: prochilodontidae) by scale and otolith morphometry and microchemistry
title_full Identification of nurseries areas of juvenile prochilodus lineatus (valenciennes, 1836) (characiformes: prochilodontidae) by scale and otolith morphometry and microchemistry
title_fullStr Identification of nurseries areas of juvenile prochilodus lineatus (valenciennes, 1836) (characiformes: prochilodontidae) by scale and otolith morphometry and microchemistry
title_full_unstemmed Identification of nurseries areas of juvenile prochilodus lineatus (valenciennes, 1836) (characiformes: prochilodontidae) by scale and otolith morphometry and microchemistry
title_sort identification of nurseries areas of juvenile prochilodus lineatus (valenciennes, 1836) (characiformes: prochilodontidae) by scale and otolith morphometry and microchemistry
publisher Sociedade Brasileira de Ictiologia
publishDate 2022
url http://repositorio.unne.edu.ar/handle/123456789/30711
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