Ichthyoplankton in the Nacional Natural Park Isla Gorgona (Pacific Ocean of Colombia) during September 2005
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| Formato: | Artículo científico |
| Lenguaje: | en |
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Pontificia Universidad Católica de Valparaíso
2007
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| _version_ | 1876483875570450432 |
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| author | Eugenia Escarria |
| author_facet | Eugenia Escarria |
| contents | Ichthyoplankton in the Nacional Natural Park Isla Gorgona (Pacific Ocean of Colombia) during September 2005 Eugenia Escarria Beatriz S. Beltrán-León Alan Giraldo Fernando Zapata Ciencias de la Tierra taxonomy Colombia fish larvae Gorgona Island spatial distribution The taxonomy, spatial distribution, and abundance patterns of ichthyoplankton collected in September2005 from the coastal zone of Gorgona Island National Natural Park in the Colombian Pacific Ocean were analyzed.The ichthyoplankton in the study area was collected with oblique tows using a minibongo net (30 cm; 250 μm mesh).The tows were made from variable depths depending on the stations but never exceeding 50 m. A sampling grid with24 stations was used. Fish larvae abundance was between 69 and 16,837 larvae·1000 m-3. Larval stages of 35 speciesbelonging to 14 families were identified. Gobiidae (35%) and Sciaenidae (15%) were the most abundant and frequentfamilies. Lythrypnus sp. (8,519 larvae·1000 m-3) and Sciaenidae spp. (6,553 larvae·1000 m-3) were the most abundantand frequent species. The analysis of larval spatial distribution suggested a tendency to aggregate towards the south ofthe study zone, approximately 5 km offshore. Significant differences were detected in the ichthyoplankton abundancesbetween the eastern and the western zones of the study area (Mann-Whitney, p = 0.000062). However, no significantrelationship was observed between ichthyoplankton abundance and average temperature (Spearman, R = -0.346), salinity(Spearman, R = 0.227), and water transparency (Spearman, R = 0.10). 2007 artículo científico 0716-1069 https://www.redalyc.org/articulo.oa?id=45635213 en http://www.redalyc.org/revista.oa?id=456 Investigaciones Marinas application/pdf Pontificia Universidad Católica de Valparaíso Investigaciones Marinas (Chile) Num.2 Vol.35 |
| format | Artículo científico |
| id | redalyc_45635213 |
| institution | Redalyc |
| language | en |
| publishDate | 2007 |
| publisher | Pontificia Universidad Católica de Valparaíso |
| spellingShingle | Ichthyoplankton in the Nacional Natural Park Isla Gorgona (Pacific Ocean of Colombia) during September 2005 Eugenia Escarria Ciencias de la Tierra taxonomy Colombia fish larvae Gorgona Island spatial distribution Ichthyoplankton in the Nacional Natural Park Isla Gorgona (Pacific Ocean of Colombia) during September 2005 Eugenia Escarria Beatriz S. Beltrán-León Alan Giraldo Fernando Zapata Ciencias de la Tierra taxonomy Colombia fish larvae Gorgona Island spatial distribution The taxonomy, spatial distribution, and abundance patterns of ichthyoplankton collected in September2005 from the coastal zone of Gorgona Island National Natural Park in the Colombian Pacific Ocean were analyzed.The ichthyoplankton in the study area was collected with oblique tows using a minibongo net (30 cm; 250 μm mesh).The tows were made from variable depths depending on the stations but never exceeding 50 m. A sampling grid with24 stations was used. Fish larvae abundance was between 69 and 16,837 larvae·1000 m-3. Larval stages of 35 speciesbelonging to 14 families were identified. Gobiidae (35%) and Sciaenidae (15%) were the most abundant and frequentfamilies. Lythrypnus sp. (8,519 larvae·1000 m-3) and Sciaenidae spp. (6,553 larvae·1000 m-3) were the most abundantand frequent species. The analysis of larval spatial distribution suggested a tendency to aggregate towards the south ofthe study zone, approximately 5 km offshore. Significant differences were detected in the ichthyoplankton abundancesbetween the eastern and the western zones of the study area (Mann-Whitney, p = 0.000062). However, no significantrelationship was observed between ichthyoplankton abundance and average temperature (Spearman, R = -0.346), salinity(Spearman, R = 0.227), and water transparency (Spearman, R = 0.10). 2007 artículo científico 0716-1069 https://www.redalyc.org/articulo.oa?id=45635213 en http://www.redalyc.org/revista.oa?id=456 Investigaciones Marinas application/pdf Pontificia Universidad Católica de Valparaíso Investigaciones Marinas (Chile) Num.2 Vol.35 |
| title | Ichthyoplankton in the Nacional Natural Park Isla Gorgona (Pacific Ocean of Colombia) during September 2005 |
| topic | Ciencias de la Tierra taxonomy Colombia fish larvae Gorgona Island spatial distribution |
| url | https://www.redalyc.org/articulo.oa?id=45635213 |