Marine dinoflagellate assemblage in the Galápagos Marine Reserve
The 18th International Conference on Harmful Algae (ICHA), From ecosystems to socio-ecosystems, 21-26 October 2018, Nantes, France.-- 1 page It is likely that harmful algae blooms (HABs) have increased in frequency, intensity and geographic distribution in the last decades in response to anthropogen...
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ftcsic:oai:digital.csic.es:10261/185649 2024-02-11T10:08:34+01:00 Marine dinoflagellate assemblage in the Galápagos Marine Reserve Carnicer, Olga de la Fuente, P. Canepa, Antonio Keith, Inti Rebolledo-Monsalve, Eduardo Diogène, Jorge Fernández-Tejedor, Margarita 2018-10-21 http://hdl.handle.net/10261/185649 unknown International Society for the Study of Harmful Algae https://www.icha2018.com/medias/content/files/ICHA_2018_Abstract_Book_v8.pdf Sí The 18th International Conference on Harmful Algae : From ecosystems to socio-ecosystems : Abstract book: 329 (2018) http://hdl.handle.net/10261/185649 none comunicación de congreso http://purl.org/coar/resource_type/c_5794 2018 ftcsic 2024-01-16T10:41:09Z The 18th International Conference on Harmful Algae (ICHA), From ecosystems to socio-ecosystems, 21-26 October 2018, Nantes, France.-- 1 page It is likely that harmful algae blooms (HABs) have increased in frequency, intensity and geographic distribution in the last decades in response to anthropogenic activities but, there are still some areas in the globe where data is scarce increasing the lack of understanding of distributional patterns of HABs in these areas. The Galapagos Islands are renowned for their unique biological diversity, high levels of endemism, and the unique currents and oceanographic features that allow a variety of habitats to exist. However, marine dinoflagellates community has a lack of representation in biodiversity assessment. In that sense, this study aims to provide key information about dinoflagellates diversity and abundances, related to physical parameters, in the Galapagos Marine Reserve. Samples were collected in April 2016 at 2, 5 and 10 miles north, south east and west on four Islands (Santa Cruz, Santa Fé, Seymour and Pinzón) belonging to southern Galapagos Marine Reserve, 48 sampling sites. A total of 155 species were observed, 26 of them potentially toxic. Among these genera, Tripos, Protoperidinium and Dinophysis were the most diverse. At species level, T. furca, Oxytoxum tesselatum and Podolampas bipes were observed in more than 60% of the samples. It is important to mention the presence of benthic species in the water column such as Ostreopsis sp., Gambierdiscus sp. and Prorcentrum lima. In addition, water samples were taken at 0, 15 and 30 meters in 21 sampling sites where no blooms of toxic species were found, just Karlodinium sp. was registered in low abundances (3940 cells. L-1) at 2 miles, 30 meters depth northern Seymour Island. According to Sorensen Index, the community structure was homogenous, with slight differences in Santa Fé Island, associated to oceanographic variability. These results represent the first register of several species in the area and highlights ... Conference Object Seymour Island Digital.CSIC (Spanish National Research Council) Four Islands ENVELOPE(-108.218,-108.218,56.050,56.050) Galapagos Icha ENVELOPE(155.983,155.983,55.567,55.567) Seymour ENVELOPE(-56.767,-56.767,-64.283,-64.283) Seymour Island ENVELOPE(-56.750,-56.750,-64.283,-64.283) |
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Open Polar |
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Digital.CSIC (Spanish National Research Council) |
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ftcsic |
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description |
The 18th International Conference on Harmful Algae (ICHA), From ecosystems to socio-ecosystems, 21-26 October 2018, Nantes, France.-- 1 page It is likely that harmful algae blooms (HABs) have increased in frequency, intensity and geographic distribution in the last decades in response to anthropogenic activities but, there are still some areas in the globe where data is scarce increasing the lack of understanding of distributional patterns of HABs in these areas. The Galapagos Islands are renowned for their unique biological diversity, high levels of endemism, and the unique currents and oceanographic features that allow a variety of habitats to exist. However, marine dinoflagellates community has a lack of representation in biodiversity assessment. In that sense, this study aims to provide key information about dinoflagellates diversity and abundances, related to physical parameters, in the Galapagos Marine Reserve. Samples were collected in April 2016 at 2, 5 and 10 miles north, south east and west on four Islands (Santa Cruz, Santa Fé, Seymour and Pinzón) belonging to southern Galapagos Marine Reserve, 48 sampling sites. A total of 155 species were observed, 26 of them potentially toxic. Among these genera, Tripos, Protoperidinium and Dinophysis were the most diverse. At species level, T. furca, Oxytoxum tesselatum and Podolampas bipes were observed in more than 60% of the samples. It is important to mention the presence of benthic species in the water column such as Ostreopsis sp., Gambierdiscus sp. and Prorcentrum lima. In addition, water samples were taken at 0, 15 and 30 meters in 21 sampling sites where no blooms of toxic species were found, just Karlodinium sp. was registered in low abundances (3940 cells. L-1) at 2 miles, 30 meters depth northern Seymour Island. According to Sorensen Index, the community structure was homogenous, with slight differences in Santa Fé Island, associated to oceanographic variability. These results represent the first register of several species in the area and highlights ... |
format |
Conference Object |
author |
Carnicer, Olga de la Fuente, P. Canepa, Antonio Keith, Inti Rebolledo-Monsalve, Eduardo Diogène, Jorge Fernández-Tejedor, Margarita |
spellingShingle |
Carnicer, Olga de la Fuente, P. Canepa, Antonio Keith, Inti Rebolledo-Monsalve, Eduardo Diogène, Jorge Fernández-Tejedor, Margarita Marine dinoflagellate assemblage in the Galápagos Marine Reserve |
author_facet |
Carnicer, Olga de la Fuente, P. Canepa, Antonio Keith, Inti Rebolledo-Monsalve, Eduardo Diogène, Jorge Fernández-Tejedor, Margarita |
author_sort |
Carnicer, Olga |
title |
Marine dinoflagellate assemblage in the Galápagos Marine Reserve |
title_short |
Marine dinoflagellate assemblage in the Galápagos Marine Reserve |
title_full |
Marine dinoflagellate assemblage in the Galápagos Marine Reserve |
title_fullStr |
Marine dinoflagellate assemblage in the Galápagos Marine Reserve |
title_full_unstemmed |
Marine dinoflagellate assemblage in the Galápagos Marine Reserve |
title_sort |
marine dinoflagellate assemblage in the galápagos marine reserve |
publisher |
International Society for the Study of Harmful Algae |
publishDate |
2018 |
url |
http://hdl.handle.net/10261/185649 |
long_lat |
ENVELOPE(-108.218,-108.218,56.050,56.050) ENVELOPE(155.983,155.983,55.567,55.567) ENVELOPE(-56.767,-56.767,-64.283,-64.283) ENVELOPE(-56.750,-56.750,-64.283,-64.283) |
geographic |
Four Islands Galapagos Icha Seymour Seymour Island |
geographic_facet |
Four Islands Galapagos Icha Seymour Seymour Island |
genre |
Seymour Island |
genre_facet |
Seymour Island |
op_relation |
https://www.icha2018.com/medias/content/files/ICHA_2018_Abstract_Book_v8.pdf Sí The 18th International Conference on Harmful Algae : From ecosystems to socio-ecosystems : Abstract book: 329 (2018) http://hdl.handle.net/10261/185649 |
op_rights |
none |
_version_ |
1790607976328855552 |