| Registro completo |
| Provedor de dados: |
OceanDocs
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| País: |
Belgium
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| Título: |
Distribución del fitoplancton en la región costera del mar ecuatoriano, durante diciembre 2000
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| Autores: |
Torres, G.
Tapia, M.E.
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| Data: |
2008-04-03
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| Ano: |
2002
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| Palavras-chave: |
Distribution
Phytoplankton
Chlorophylls
Biomass
Indicator species
Cruises
Distribution
Phytoplankton
Biomass
Chlorophylls
Indicator species
Http://aims.fao.org/aos/agrovoc/c_35773
Http://aims.fao.org/aos/agrovoc/c_13344
Http://aims.fao.org/aos/agrovoc/c_926
Http://aims.fao.org/aos/agrovoc/c_1577
Http://aims.fao.org/aos/agrovoc/c_35790
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| Resumo: |
La presente investigación describe el comportamiento del primer nivel trófico (clorofila, feopigmentos, biomasa celular e indicadores del fitoplancton) en el ecosistema costero del mar ecuatoriano, conocer la incidencia de las principales especies que se encuentran formando núcleos de mayor productividad e inter-relacionadas con las condiciones ambientales durante el Crucero realizado en diciembre/2000.
This study was carried out during December 2000, onboard the R/V Orion of the Oceanographic Institute of the Ecuadorian Navy. The objetive was to establish the relationship between chlorophyll "a" content and the abundance of species or groups of species of micro-algae inside a region with ocean-climate system variability in the Tropical Pacific Ocean along the Ecuadorian coast. The highest chlorophyll content was found between 1°3 S and 3°S, with a positive correlation to the cellular biomass, including species of phytoplankton such as Rhizosolenia stoltherfothi, Thalassiosira subtiles, Pseudonitzschia delicatissima, P. longissima, Leptocylindrus danicus, Gymnodinium sp., y Messodinium rubrum. However, the biomass calculated from the content of the 55 µm mesh size was dominated by Rhizosolenia imbricata, T. subtiles, Chaetoceros affinis, L. danicus, Chaetoceros curvisetus. The dinoflagellates showed concentrations of species that characterized zones of warm water masses (Protoperidinium crassipes, Gonyaulax polyedra, Dinophysis caudata towards the NE, and C. tripos, G. polyedricum, C. furca towards the SE of the study area). The phytoplankton distribution did not reflect the position of the Equatorial Front, determined as an almost zonal phenomenon with a weak surface thermal gradient (23-25°C). The high abundances of M. rubrum and Gymnodinium sp., might have been related to the influence of the cold Humboldt Current and this may have produced some "red tide" events towards the coastal margin.
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| Tipo: |
Journal Contribution
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| Idioma: |
Espanhol
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| Identificador: |
Acta Oceanográfica del Pacífico, 11(1). p. 63-72
1390-0226
http://hdl.handle.net/1834/2260
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| Editor: |
Instituto Oceanográfico de la Armada, Guayaquil, Ecuador
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