Fish diversity in the Gruta India Municipal Natural Park, Misiones, Argentina
The Gruta India Municipal Natural Park is located in the municipality of Garuhapé, Misiones Province, Argentina, and its main purpose is the conservation of the biodiversity of the Parana Rainforest and the cultural heritage of the site. A reach of the Tres de Mayo stream flows through the protected...
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| Formato: | Artículo revista |
| Lenguaje: | Español |
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Universidad Nacional del Nordeste
2026
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| Acceso en línea: | https://revistas.unne.edu.ar/index.php/vet/article/view/9223 |
| Aporte de: |
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I48-R154-article-9223 |
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Universidad Nacional del Nordeste |
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R-154 |
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Revistas UNNE - Universidad Nacional del Noroeste (UNNE) |
| language |
Español |
| format |
Artículo revista |
| topic |
ichthyofauna inland streams endemism conservation ictiofauna arroyos interiores endemismo conservación |
| spellingShingle |
ichthyofauna inland streams endemism conservation ictiofauna arroyos interiores endemismo conservación Araya, Patricia Flores, Silvia Alicia Barboza, Adriana Griselda Serrano, Marcelo Javier Kusmeluk, Carlos Eduardo Fish diversity in the Gruta India Municipal Natural Park, Misiones, Argentina |
| topic_facet |
ichthyofauna inland streams endemism conservation ictiofauna arroyos interiores endemismo conservación |
| author |
Araya, Patricia Flores, Silvia Alicia Barboza, Adriana Griselda Serrano, Marcelo Javier Kusmeluk, Carlos Eduardo |
| author_facet |
Araya, Patricia Flores, Silvia Alicia Barboza, Adriana Griselda Serrano, Marcelo Javier Kusmeluk, Carlos Eduardo |
| author_sort |
Araya, Patricia |
| title |
Fish diversity in the Gruta India Municipal Natural Park, Misiones, Argentina |
| title_short |
Fish diversity in the Gruta India Municipal Natural Park, Misiones, Argentina |
| title_full |
Fish diversity in the Gruta India Municipal Natural Park, Misiones, Argentina |
| title_fullStr |
Fish diversity in the Gruta India Municipal Natural Park, Misiones, Argentina |
| title_full_unstemmed |
Fish diversity in the Gruta India Municipal Natural Park, Misiones, Argentina |
| title_sort |
fish diversity in the gruta india municipal natural park, misiones, argentina |
| description |
The Gruta India Municipal Natural Park is located in the municipality of Garuhapé, Misiones Province, Argentina, and its main purpose is the conservation of the biodiversity of the Parana Rainforest and the cultural heritage of the site. A reach of the Tres de Mayo stream flows through the protected area and was studied to determine the composition, structure, and conservation status of the fish community. Four seasonal sampling events were conducted between 2022 and 2023 using monofilament gill nets with mesh sizes of 2.5, 3, 4, and 5 cm between opposite knots, and a seine net and hand net in shallow areas with floating or emergent (palustrine) vegetation. Species diversity comprised 43 species belonging to the orders Characiformes, Siluriformes, Gymnotiformes, Cichliformes, Perciformes, and Clupeiformes. Alpha diversity (H′) reached a value of 3, while the non-parametric richness estimators Chao2 and Jackknife1 suggested that an additional 12 to 17 species remain undetected. Rank–abundance patterns revealed marked differences in fish assemblage structure among stream reaches, with the potamic reach exhibiting the highest species richness (33 species) and abundance (164 individuals). Similarity among sampling sites ranged from low to moderate (2–32%). Seven species were classified as common or abundant, whereas 29 rare species were predominantly recorded at sites under direct river influence. Six endemic species were recorded, including Rhamdella cainguae and Rineloricaria misionera, which are categorized as Vulnerable according to the categories and criteria of the IUCN Red List. These findings indicate that the stream functions as an important refuge for endemic and threatened ichthyofauna, highlighting its high ecological value and the need to implement basin-scale conservation strategies to ensure its long-term protection. |
| publisher |
Universidad Nacional del Nordeste |
| publishDate |
2026 |
| url |
https://revistas.unne.edu.ar/index.php/vet/article/view/9223 |
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I48-R154-article-92232026-04-09T14:51:46Z Fish diversity in the Gruta India Municipal Natural Park, Misiones, Argentina Diversidad íctica del Parque Natural Municipal Gruta India, Misiones (Argentina) Araya, Patricia Flores, Silvia Alicia Barboza, Adriana Griselda Serrano, Marcelo Javier Kusmeluk, Carlos Eduardo ichthyofauna inland streams endemism conservation ictiofauna arroyos interiores endemismo conservación The Gruta India Municipal Natural Park is located in the municipality of Garuhapé, Misiones Province, Argentina, and its main purpose is the conservation of the biodiversity of the Parana Rainforest and the cultural heritage of the site. A reach of the Tres de Mayo stream flows through the protected area and was studied to determine the composition, structure, and conservation status of the fish community. Four seasonal sampling events were conducted between 2022 and 2023 using monofilament gill nets with mesh sizes of 2.5, 3, 4, and 5 cm between opposite knots, and a seine net and hand net in shallow areas with floating or emergent (palustrine) vegetation. Species diversity comprised 43 species belonging to the orders Characiformes, Siluriformes, Gymnotiformes, Cichliformes, Perciformes, and Clupeiformes. Alpha diversity (H′) reached a value of 3, while the non-parametric richness estimators Chao2 and Jackknife1 suggested that an additional 12 to 17 species remain undetected. Rank–abundance patterns revealed marked differences in fish assemblage structure among stream reaches, with the potamic reach exhibiting the highest species richness (33 species) and abundance (164 individuals). Similarity among sampling sites ranged from low to moderate (2–32%). Seven species were classified as common or abundant, whereas 29 rare species were predominantly recorded at sites under direct river influence. Six endemic species were recorded, including Rhamdella cainguae and Rineloricaria misionera, which are categorized as Vulnerable according to the categories and criteria of the IUCN Red List. These findings indicate that the stream functions as an important refuge for endemic and threatened ichthyofauna, highlighting its high ecological value and the need to implement basin-scale conservation strategies to ensure its long-term protection. El parque Natural Municipal Gruta India está ubicado en el Municipio de Garuhapé, Misiones y tiene por finalidad la conservación de la biodiversidad de la Selva Paranaense y del patrimonio cultural del sitio. Un tramo del arroyo Tres de Mayo atraviesa el área protegida y fue estudiado con el objetivo de determinar la composición, estructura y el estado de conservación de la comunidad íctica. Se realizaron cuatro muestreos estacionales, entre los años 2022 y 2023, con redes de espera monofilamento de 2,5; 3; 4 y 5 cm entre nudos opuestos, y red de arrastre o copo en las zonas de menor profundidad con vegetación flotante o palustre. La diversidad específica estuvo representada por 43 especies pertenecientes a los Ordenes Characiformes, Siluriformes, Gymnotiformes, Cichliformes, Perciformes y Clupeiformes. La diversidad alfa (H’) tuvo un valor de 3 y los estimadores no paramétricos Chao2 y Jackknife1, indicaron que aún restarían por registrar entre 12 y 17 especies. La distribución rango–abundancia evidenció diferencias en la estructura de la comunidad entre los sectores del arroyo, destacando la región potámica por presentar la mayor riqueza específica (33 especies) y abundancia (164 individuos). La similitud entre los puntos de muestreo fue de moderada a baja (2-32%). Siete especies fueron clasificadas como comunes o abundantes, mientras que 29 especies raras se registraron principalmente en sitios influenciados por el río. Se identificaron seis especies endémicas, entre ellas Rhamdella cainguae y Rineloricaria misionera clasificadas como vulnerables según las categorías y criterios de la Lista Roja de la UICN. Estos resultados indican que el arroyo funciona como un refugio importante para la ictiofauna endémica y amenazada, lo que resalta su alto valor ecológico y la necesidad de implementar estrategias de conservación específicas, a escala de cuenca, que aseguren su protección a largo plazo. Universidad Nacional del Nordeste 2026-04-01 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf text/xml application/epub+zip text/html https://revistas.unne.edu.ar/index.php/vet/article/view/9223 10.30972/vet.3719223 Revista Veterinaria; Vol. 37 (2026); 1-10 Revista Veterinaria; Vol. 37 (2026); 1-10 1669-6840 1668-4834 spa https://revistas.unne.edu.ar/index.php/vet/article/view/9223/9083 https://revistas.unne.edu.ar/index.php/vet/article/view/9223/9125 https://revistas.unne.edu.ar/index.php/vet/article/view/9223/9126 https://revistas.unne.edu.ar/index.php/vet/article/view/9223/9127 Derechos de autor 2026 Patricia Araya, Silvia Alicia Flores, Adriana Griselda Barboza, Marcelo Javier Serrano, Carlos Eduardo Kusmeluk https://creativecommons.org/licenses/by-nc/4.0 |