Biología alimentaria y reproductiva de Farlowella vittata (Siluriformes: Loricariidae) en la cuenca del río Güejar, Orinoquía, Colombia
Food and reproductive biology of Farlowella vittata (Siluriformes: Loricariidae) in Güejar River Basin, Orinoco, Colombia. Neotropical fish live in streams with considerable spatial and temporal variability of their food items. Food availability depends on different factors such as discharge, channe...
| Autores: | , , |
|---|---|
| Formato: | artículo |
| Estado: | Versión publicada |
| Fecha de publicación: | 2012 |
| País: | Costa Rica |
| Recursos: | Universidad de Costa Rica |
| Repositorio: | Portal de Revistas UCR |
| Idioma: | español |
| OAI Identifier: | oai:portal.ucr.ac.cr:article/2187 |
| Acesso em linha: | https://revistas.ucr.ac.cr/index.php/rbt/article/view/2187 |
| Access Level: | acceso abierto |
| Palavra-chave: | diet reproduction teleostei tropical freshwater fish dieta reproducción pez tropical |
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Biología alimentaria y reproductiva de Farlowella vittata (Siluriformes: Loricariidae) en la cuenca del río Güejar, Orinoquía, Colombia Biología alimentaria y reproductiva de Farlowella vittata (Siluriformes: Loricariidae) en la cuenca del río Güejar, Orinoquía, Colombia |
| title |
Biología alimentaria y reproductiva de Farlowella vittata (Siluriformes: Loricariidae) en la cuenca del río Güejar, Orinoquía, Colombia |
| spellingShingle |
Biología alimentaria y reproductiva de Farlowella vittata (Siluriformes: Loricariidae) en la cuenca del río Güejar, Orinoquía, Colombia García-Alzate, Carlos A. diet reproduction teleostei tropical freshwater fish dieta reproducción teleostei pez tropical |
| title_short |
Biología alimentaria y reproductiva de Farlowella vittata (Siluriformes: Loricariidae) en la cuenca del río Güejar, Orinoquía, Colombia |
| title_full |
Biología alimentaria y reproductiva de Farlowella vittata (Siluriformes: Loricariidae) en la cuenca del río Güejar, Orinoquía, Colombia |
| title_fullStr |
Biología alimentaria y reproductiva de Farlowella vittata (Siluriformes: Loricariidae) en la cuenca del río Güejar, Orinoquía, Colombia |
| title_full_unstemmed |
Biología alimentaria y reproductiva de Farlowella vittata (Siluriformes: Loricariidae) en la cuenca del río Güejar, Orinoquía, Colombia |
| title_sort |
Biología alimentaria y reproductiva de Farlowella vittata (Siluriformes: Loricariidae) en la cuenca del río Güejar, Orinoquía, Colombia |
| dc.creator.none.fl_str_mv |
García-Alzate, Carlos A. Román-Valencia, César Barrero, Ana M. |
| author |
García-Alzate, Carlos A. |
| author_facet |
García-Alzate, Carlos A. Román-Valencia, César Barrero, Ana M. |
| author_role |
author |
| author2 |
Román-Valencia, César Barrero, Ana M. |
| author2_role |
author author |
| dc.subject.none.fl_str_mv |
diet reproduction teleostei tropical freshwater fish dieta reproducción teleostei pez tropical |
| topic |
diet reproduction teleostei tropical freshwater fish dieta reproducción teleostei pez tropical |
| description |
Food and reproductive biology of Farlowella vittata (Siluriformes: Loricariidae) in Güejar River Basin, Orinoco, Colombia. Neotropical fish live in streams with considerable spatial and temporal variability of their food items. Food availability depends on different factors such as discharge, channel morphology, physicochemical conditions and interactions with other species, as well as their food habits. On the other side, good food availability results in reproductive success. Because the study of those changes contributes to a better understanding of trophic interactions in fish populations, the present work describes and evaluates aspects of diet and reproduction of Farlowella vittata in Pringamosal Creek, Güejar River drainage, Orinoco River basin, Colombia. Five collecting expeditions were done during both high and low rain seasons of 2008 and 2009. Physical and chemical water parameters were measured, and fish were captured from several points along the total length of the 7km stream, to characterize their biometry and stomach contents. Our results showed that Pringamosal creek is a first order stream, about 3.5m wide and with an average depth of 1m in our study area. Dissolved oxygen values were 6.2mg/L during low water and 2.7mg/L during high water phase. The creek is classified as oligotrophic but with a tendency to eutrophication. A total of 130 fish samples were analyzed. Fishes were assigned to seven size range categories between 86.0 and 175.5mm standard length (SL). Stomach contents revealed that the diet of this species consisted mainly of algae (Bacillariophyceae) (84.6% Abundance Relative), but we observed a variation in the diet according to season; during low rainfall it feeds on phytoplankton (86.47% A.R.) and during high rainfall on zooplankton as well as plant material and organic material (0.685% A.R. and 18.83% A.R., respectively). A Kruskal-Wallis ANOVA showed statistically significant differences in food items between sexes. The condition factor (K) indicated that the species was well fed. Size at sexual maturity was 154mm SL for males and 124mm SL for females. The gonadosomatic index (RGS) showed that this fish reproduced during high water (April- May) season, and females showed a fecundity of 1 819 ovocites, with an average diameter of 1.4mm. Although parental care was not observed during this study, it is well known that males protect their eggs and juveniles, making them easy to capture during the breeding periods identified in this study, and at the same time, vulnerable to overexploitation. We recommend an urgent management plan for the conservation of this species, since at this time, no fishing controls are enforced even though it is harvested as an ornamental species. |
| publishDate |
2012 |
| dc.date.none.fl_str_mv |
2012-12-01 |
| dc.type.none.fl_str_mv |
info:eu-repo/semantics/publishedVersion Article artículo original http://purl.org/coar/resource_type/c_2df8fbb1 info:eu-repo/semantics/article |
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article |
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publishedVersion |
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https://revistas.ucr.ac.cr/index.php/rbt/article/view/2187 10.15517/rbt.v60i4.2187 |
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https://revistas.ucr.ac.cr/index.php/rbt/article/view/2187 |
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10.15517/rbt.v60i4.2187 |
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spa |
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spa |
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https://revistas.ucr.ac.cr/index.php/rbt/article/view/2187/2150 |
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Derechos de autor 2012 Revista de Biología Tropical http://creativecommons.org/licenses/by/4.0 acceso abierto http://purl.org/coar/access_right/c_abf2 info:eu-repo/semantics/openAccess |
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Derechos de autor 2012 Revista de Biología Tropical http://creativecommons.org/licenses/by/4.0 acceso abierto http://purl.org/coar/access_right/c_abf2 |
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openAccess |
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application/pdf |
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Universidad de Costa Rica |
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Universidad de Costa Rica |
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Revista de Biología Tropical; Vol. 60 No. 4 (2012): Volume 60 – Regular number 4 – December 2012; 1873–1888 Revista de Biología Tropical; Vol. 60 Núm. 4 (2012): Volumen 60 – Número regular 4 – Diciembre 2012; 1873–1888 Revista Biología Tropical; Vol. 60 N.º 4 (2012): Volumen 60 – Número regular 4 – Diciembre 2012; 1873–1888 2215-2075 0034-7744 10.15517/rbt.v60i4 reponame:Portal de Revistas UCR instname:Universidad de Costa Rica instacron:UCR |
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Universidad de Costa Rica |
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UCR |
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UCR |
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Portal de Revistas UCR |
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Portal de Revistas UCR |
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Portal de Revistas UCR - Universidad de Costa Rica |
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jorge.polanco@ucr.ac.cr |
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1849325351357906944 |
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Biología alimentaria y reproductiva de Farlowella vittata (Siluriformes: Loricariidae) en la cuenca del río Güejar, Orinoquía, ColombiaBiología alimentaria y reproductiva de Farlowella vittata (Siluriformes: Loricariidae) en la cuenca del río Güejar, Orinoquía, ColombiaGarcía-Alzate, Carlos A.Román-Valencia, CésarBarrero, Ana M.dietreproductionteleosteitropical freshwater fishdietareproducciónteleosteipez tropicalFood and reproductive biology of Farlowella vittata (Siluriformes: Loricariidae) in Güejar River Basin, Orinoco, Colombia. Neotropical fish live in streams with considerable spatial and temporal variability of their food items. Food availability depends on different factors such as discharge, channel morphology, physicochemical conditions and interactions with other species, as well as their food habits. On the other side, good food availability results in reproductive success. Because the study of those changes contributes to a better understanding of trophic interactions in fish populations, the present work describes and evaluates aspects of diet and reproduction of Farlowella vittata in Pringamosal Creek, Güejar River drainage, Orinoco River basin, Colombia. Five collecting expeditions were done during both high and low rain seasons of 2008 and 2009. Physical and chemical water parameters were measured, and fish were captured from several points along the total length of the 7km stream, to characterize their biometry and stomach contents. Our results showed that Pringamosal creek is a first order stream, about 3.5m wide and with an average depth of 1m in our study area. Dissolved oxygen values were 6.2mg/L during low water and 2.7mg/L during high water phase. The creek is classified as oligotrophic but with a tendency to eutrophication. A total of 130 fish samples were analyzed. Fishes were assigned to seven size range categories between 86.0 and 175.5mm standard length (SL). Stomach contents revealed that the diet of this species consisted mainly of algae (Bacillariophyceae) (84.6% Abundance Relative), but we observed a variation in the diet according to season; during low rainfall it feeds on phytoplankton (86.47% A.R.) and during high rainfall on zooplankton as well as plant material and organic material (0.685% A.R. and 18.83% A.R., respectively). A Kruskal-Wallis ANOVA showed statistically significant differences in food items between sexes. The condition factor (K) indicated that the species was well fed. Size at sexual maturity was 154mm SL for males and 124mm SL for females. The gonadosomatic index (RGS) showed that this fish reproduced during high water (April- May) season, and females showed a fecundity of 1 819 ovocites, with an average diameter of 1.4mm. Although parental care was not observed during this study, it is well known that males protect their eggs and juveniles, making them easy to capture during the breeding periods identified in this study, and at the same time, vulnerable to overexploitation. We recommend an urgent management plan for the conservation of this species, since at this time, no fishing controls are enforced even though it is harvested as an ornamental species.Los peces de quebradas neotropicales conviven con una considerable variación espacial y temporal de sus alimentos. La disponibilidad de estos alimentos depende de diferentes factores tales como la morfología de los canales, la descarga, atributos físico-químicos y las interacciones con otras especies. Es así como estudios de los hábitos alimenticios contribuyen a la comprensión de las interacciones tróficas de las poblaciones de peces. En el presente trabajo se describen y evalúan los aspectos de la dieta y la reproducción de Farlowella vittata (Siluriformes: Loricariidae) en el Arroyo Pringamosal, cuenca del río Güejar, cuenca del río Orinoco, Colombia. Se realizaron cinco expediciones de recolecta durante las temporadas de altas y bajas lluvias. Variables físicas y químicas del agua fueron medidas y los peces fueron capturados en varios puntos a lo largo de toda la cuenca. El arroyo Pringamosal es una corriente de primer orden con 3.5m de ancho y una profundidad media de 1m en el área de estudio. Valores de oxígeno disuelto son de 6.2mg/L durante bajas lluvias y 2.7mg/L durante altas lluvias, es oligotrófico con tendencia a la eutrofización. Ciento treinta ejemplares fueron analizados, 7 intervalos de tallas fueron recolectadas entre los 86.0 y 175.5mm de longitud estándar. La dieta de esta especie consiste principalmente de algas (Bacillariophyceae) (84.6% AR), pero se observó una variación en la dieta de acuerdo a la temporada; en bajas lluvias se alimenta de fitoplancton (86.47% A.R.) y en altas lluvias de zooplankton y material de origen vegetal y orgánico (0.685% A.R y 18.83% A.R. respectivamente), el ANDEVA de Kruskal Wallis mostró diferencias estadísticamente significativas de los ítems alimenticios entre sexos. El factor de condición (K) indicó que la especie se encontró bien alimentada. El índice gonadosomático (RGS) mostró que este pez se reproduce en aguas altas (abril-mayo). La fecundidad fue 1 819 ovocitos con un diámetro medio de 1.4mm. Talla de primera madurez sexual fue de 154mm de longitud estándar para machos, y SL 124mm para hembras. Aunque no se observo cuidado parental es bien conocido que los machos de esta especie lo presentan, haciendo mas fácil su captura durante los periodos reproductivos identificados en este estudio y vulnerable a la sobreexplotación. Se recomienda establecer planes de manejo y conservación de esta especie ya que es explotada sin control como especie ornamental.Universidad de Costa Rica2012-12-01info:eu-repo/semantics/publishedVersionArticleartículo originalhttp://purl.org/coar/resource_type/c_2df8fbb1info:eu-repo/semantics/articleapplication/pdfhttps://revistas.ucr.ac.cr/index.php/rbt/article/view/218710.15517/rbt.v60i4.2187Revista de Biología Tropical; Vol. 60 No. 4 (2012): Volume 60 – Regular number 4 – December 2012; 1873–1888Revista de Biología Tropical; Vol. 60 Núm. 4 (2012): Volumen 60 – Número regular 4 – Diciembre 2012; 1873–1888Revista Biología Tropical; Vol. 60 N.º 4 (2012): Volumen 60 – Número regular 4 – Diciembre 2012; 1873–18882215-20750034-774410.15517/rbt.v60i4reponame:Portal de Revistas UCRinstname:Universidad de Costa Ricainstacron:UCRspahttps://revistas.ucr.ac.cr/index.php/rbt/article/view/2187/2150Derechos de autor 2012 Revista de Biología Tropicalhttp://creativecommons.org/licenses/by/4.0acceso abiertohttp://purl.org/coar/access_right/c_abf2info:eu-repo/semantics/openAccess2022-06-06T19:06:51Zoai:portal.ucr.ac.cr:article/2187Portal de revistashttps://revistas.ucr.ac.cr/Universidadhttp://www.ucr.ac.crhttps://revistas.ucr.ac.cr/index.php/index/oaijorge.polanco@ucr.ac.crCosta RicaNo aplicaNo aplicaNo aplicaopendoar:2025-08-13T10:13:19.643Portal de Revistas UCR - Universidad de Costa Ricafalse |
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15,812455 |