Invertebrados bentónicos del Lago Cote, Costa Rica
Benthic invertebrates of Cote Lake, Costa Rica. The benthic community of Lake Cote, a natural lake in Northwestern Costa Rica, was surveyed in two occasions (1/June and 28/August/2003) in order to determine possible gradients in community composition with depth, following a shore-center transect. In...
| Autores: | , |
|---|---|
| Formato: | artículo |
| Estado: | Versión publicada |
| Fecha de publicación: | 2008 |
| País: | Costa Rica |
| Recursos: | Universidad de Costa Rica |
| Repositorio: | Portal de Revistas UCR |
| Idioma: | español |
| OAI Identifier: | oai:portal.ucr.ac.cr:article/27227 |
| Acesso em linha: | https://revistas.ucr.ac.cr/index.php/rbt/article/view/27227 |
| Access Level: | acceso abierto |
| Palavra-chave: | limnología tropical bentos lagos tropicales Neotrópico Lago Cote Chaoborus Quironómidos Costa Rica tropical limnology benthos tropical lakes Neotropic Cote lake Chironomids |
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Invertebrados bentónicos del Lago Cote, Costa Rica Invertebrados bentónicos del Lago Cote, Costa Rica |
| title |
Invertebrados bentónicos del Lago Cote, Costa Rica |
| spellingShingle |
Invertebrados bentónicos del Lago Cote, Costa Rica Sibaja-Cordero, Jeffrey Alejandro limnología tropical bentos lagos tropicales Neotrópico Lago Cote Chaoborus Quironómidos Costa Rica tropical limnology benthos tropical lakes Neotropic Costa Rica Cote lake Chaoborus Chironomids |
| title_short |
Invertebrados bentónicos del Lago Cote, Costa Rica |
| title_full |
Invertebrados bentónicos del Lago Cote, Costa Rica |
| title_fullStr |
Invertebrados bentónicos del Lago Cote, Costa Rica |
| title_full_unstemmed |
Invertebrados bentónicos del Lago Cote, Costa Rica |
| title_sort |
Invertebrados bentónicos del Lago Cote, Costa Rica |
| dc.creator.none.fl_str_mv |
Sibaja-Cordero, Jeffrey Alejandro Umaña-Villalobos, Gerardo |
| author |
Sibaja-Cordero, Jeffrey Alejandro |
| author_facet |
Sibaja-Cordero, Jeffrey Alejandro Umaña-Villalobos, Gerardo |
| author_role |
author |
| author2 |
Umaña-Villalobos, Gerardo |
| author2_role |
author |
| dc.subject.none.fl_str_mv |
limnología tropical bentos lagos tropicales Neotrópico Lago Cote Chaoborus Quironómidos Costa Rica tropical limnology benthos tropical lakes Neotropic Costa Rica Cote lake Chaoborus Chironomids |
| topic |
limnología tropical bentos lagos tropicales Neotrópico Lago Cote Chaoborus Quironómidos Costa Rica tropical limnology benthos tropical lakes Neotropic Costa Rica Cote lake Chaoborus Chironomids |
| description |
Benthic invertebrates of Cote Lake, Costa Rica. The benthic community of Lake Cote, a natural lake in Northwestern Costa Rica, was surveyed in two occasions (1/June and 28/August/2003) in order to determine possible gradients in community composition with depth, following a shore-center transect. In each opportunity, sediment samples were collected with an Ekman dredge at 10 stations ranging in depth from 1 to 12m. Two subsamples (500μm mesh screen), one to study macrofauna and the other to analize sediment characteristics, were collected from each dredge. Meiofauna (between 500 and 63μm mesh screen) was collected with a core (area: 5.3 cm2, depth: 4cm) in the dredge sediment (only in the second visit). Benthic fauna subsamples were preserved in 5% buffered formalin in freshwater stained with Rose Bengal. There was a decrease in temperature with depth, and oxygen levels dropped below 1mg/l below 8m depth. The percent of silt and clay increased with depth, with some exceptions and the center of the lake. A total species richness of 13 taxa was found, including macrofauna (8 taxa) and meiofauna (7 taxa). Lake Cote resembles other tropical lakes in the presence of oligochaete worms and the dipterans Procladius (Chironomidae), Tanytarsus (Chironomidae) and Chaoborus (Chaoboridae). The meiofauna also included some Coleoptera and Acari. Benthic composition was associated with habitat parameters such as substrate granulometry, dissolved oxygen and depth. The low abundance of chironomids may reflect a poor nutrient accumulation on the bottom, caused by the continuous mixing of the water body. Chironomids of the macrofauna were found from the shore to 9m depth. On the other hand, meiofaunal stages were found at less that 9m of depth. Chaoborus larvae were found between 8 and 11m depth, caused by diurnal migration to the deeper zone in the lake. Chaoborus and fish species probably predate on oligochaetes and maintain the low abundance of these worms. The total abundance of the macrofauna reached a maximum at a mid depth, with diversity being greater at shallower depths. The mean density of the macrofauna was 326 individuals per m2, and the mean density of the meiofauna was lower, with two organisms per 10cm2. The distribution of the fauna was clumped, following a gradient with depth. Rev. Biol. Trop. 56 (Suppl. 4): 205-213. Epub 2009 June 30. |
| publishDate |
2008 |
| dc.date.none.fl_str_mv |
2008-12-01 |
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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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https://revistas.ucr.ac.cr/index.php/rbt/article/view/27227 10.15517/rbt.v56i4.27227 |
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https://revistas.ucr.ac.cr/index.php/rbt/article/view/27227 |
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10.15517/rbt.v56i4.27227 |
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spa |
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spa |
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https://revistas.ucr.ac.cr/index.php/rbt/article/view/27227/27334 |
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Derechos de autor 2008 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 2008 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. 56 No. S4 (2008): Volume 56 – Supplement 4 – December 2008: Aquatic ecosystems of Costa Rica V; 205–213 Revista de Biología Tropical; Vol. 56 Núm. S4 (2008): Volumen 56 – Suplemento 4 – Diciembre 2008: Ecosistemas acuáticos de Costa Rica V; 205–213 Revista Biología Tropical; Vol. 56 N.º S4 (2008): Volumen 56 – Suplemento 4 – Diciembre 2008: Ecosistemas acuáticos de Costa Rica V; 205–213 2215-2075 0034-7744 10.15517/rbt.v56i4 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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1849325379192356864 |
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Invertebrados bentónicos del Lago Cote, Costa RicaInvertebrados bentónicos del Lago Cote, Costa RicaSibaja-Cordero, Jeffrey AlejandroUmaña-Villalobos, Gerardolimnología tropicalbentoslagos tropicalesNeotrópicoLago CoteChaoborusQuironómidosCosta Ricatropical limnologybenthostropical lakesNeotropicCosta RicaCote lakeChaoborusChironomidsBenthic invertebrates of Cote Lake, Costa Rica. The benthic community of Lake Cote, a natural lake in Northwestern Costa Rica, was surveyed in two occasions (1/June and 28/August/2003) in order to determine possible gradients in community composition with depth, following a shore-center transect. In each opportunity, sediment samples were collected with an Ekman dredge at 10 stations ranging in depth from 1 to 12m. Two subsamples (500μm mesh screen), one to study macrofauna and the other to analize sediment characteristics, were collected from each dredge. Meiofauna (between 500 and 63μm mesh screen) was collected with a core (area: 5.3 cm2, depth: 4cm) in the dredge sediment (only in the second visit). Benthic fauna subsamples were preserved in 5% buffered formalin in freshwater stained with Rose Bengal. There was a decrease in temperature with depth, and oxygen levels dropped below 1mg/l below 8m depth. The percent of silt and clay increased with depth, with some exceptions and the center of the lake. A total species richness of 13 taxa was found, including macrofauna (8 taxa) and meiofauna (7 taxa). Lake Cote resembles other tropical lakes in the presence of oligochaete worms and the dipterans Procladius (Chironomidae), Tanytarsus (Chironomidae) and Chaoborus (Chaoboridae). The meiofauna also included some Coleoptera and Acari. Benthic composition was associated with habitat parameters such as substrate granulometry, dissolved oxygen and depth. The low abundance of chironomids may reflect a poor nutrient accumulation on the bottom, caused by the continuous mixing of the water body. Chironomids of the macrofauna were found from the shore to 9m depth. On the other hand, meiofaunal stages were found at less that 9m of depth. Chaoborus larvae were found between 8 and 11m depth, caused by diurnal migration to the deeper zone in the lake. Chaoborus and fish species probably predate on oligochaetes and maintain the low abundance of these worms. The total abundance of the macrofauna reached a maximum at a mid depth, with diversity being greater at shallower depths. The mean density of the macrofauna was 326 individuals per m2, and the mean density of the meiofauna was lower, with two organisms per 10cm2. The distribution of the fauna was clumped, following a gradient with depth. Rev. Biol. Trop. 56 (Suppl. 4): 205-213. Epub 2009 June 30.Se estudio la comunidad de invertebrados bentónicos del lago Cote (un lago natural), del Noroeste de Costa Rica en dos ocasiones (1º de junio y 28 de agosto del 2003). Se determinó la existencia de un gradiente debido a la profundidad (0 a 12m), siguiendo un transecto de diez estaciones, desde la orilla al centro del lago. Con una draga Ekman se recolectó sedimento del fondo en ambas ocasiones y se tomó una submuestra para analizar la macrofauna y otra para determinar las características del sustrato. En la segunda visita se recolectó meiofauna de la draga con un barreno (área: 5.3cm2, profundidad: 4cm). Se preservó la fauna en agua dulce con formalina y rojo de Bengala. La temperatura descendió con la profundidad y el oxígeno disuelto se mantuvo bajo 1mg/l a más de 8m de profundidad. El limo y la arcilla se incrementó con la profundidad, excepto en el centro del lago. La riqueza fue de 13 taxa (macrofauna: 8 y meiofauna: 7). El lago es similar a otros lagos tropicales por presentar oligoquetos y los dípteros Procladius, Tanytarsus y Chaoborus. La meiofauna incluyo a Coleoptera y Acari. La baja abundancia de quironómidos (de la orilla a 9m) puede reflejar una baja acumulación de nutrientes en el sustrato, por la mezcla continua de la columna de agua. Chaoborus se presentó de 8 a 11m, debido a la migración diurna a la zona profunda del lago. Chaoborus y las especies de peces pueden estar depredando la población de oligoquetos manteniendo una baja abundancia.Universidad de Costa Rica2008-12-01info: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/2722710.15517/rbt.v56i4.27227Revista de Biología Tropical; Vol. 56 No. S4 (2008): Volume 56 – Supplement 4 – December 2008: Aquatic ecosystems of Costa Rica V; 205–213Revista de Biología Tropical; Vol. 56 Núm. S4 (2008): Volumen 56 – Suplemento 4 – Diciembre 2008: Ecosistemas acuáticos de Costa Rica V; 205–213Revista Biología Tropical; Vol. 56 N.º S4 (2008): Volumen 56 – Suplemento 4 – Diciembre 2008: Ecosistemas acuáticos de Costa Rica V; 205–2132215-20750034-774410.15517/rbt.v56i4reponame:Portal de Revistas UCRinstname:Universidad de Costa Ricainstacron:UCRspahttps://revistas.ucr.ac.cr/index.php/rbt/article/view/27227/27334Derechos de autor 2008 Revista de Biología Tropicalhttp://creativecommons.org/licenses/by/4.0acceso abiertohttp://purl.org/coar/access_right/c_abf2info:eu-repo/semantics/openAccess2022-06-06T17:56:43Zoai:portal.ucr.ac.cr:article/27227Portal 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:2025-08-13T10:22:39.681Portal de Revistas UCR - Universidad de Costa Ricafalse |
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15,811543 |