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Please use this identifier to cite or link to this item: http://hdl.handle.net/1834/2318

Title: Bio-oceanografía en el entorno de la isla de La Plata, durante agosto/2001
Authors: Torres, G.
Calderón, T.
Calderón, G.
Franco, V.
Correa, C.
ASFA Terms: Marine ecology
Phytoplankton
Zooplankton
Ichthyoplankton
Upwelling
Biological production
Marine resources
Cruises
Oceanic islands
Coastal zone
Issue Date: 2004
Publisher: Instituto Oceanográfico de la Armada, Guayaquil, Ecuador
Citation: Acta Oceanográfica del Pacífico, 12(1). p. 93-102
Abstract: El objetivo de la presente investigación, fue dar un comprensivo entendimiento de las condiciones bio-oceanográficas del fitoplancton-zooplancton-ictioplancton, y las interacciones con el medio circundante (físico, químico), procesos que son complicados cuando involucran aspectos hidrográficos costeros como áreas de afloramiento, áreas de pesca y áreas de soporte alimentario para los diferentes recursos marinos costeros planctónicos-bentónicos y aves-mamíferos marinos.
The oceanographic Institute of the Ecuadorian Navy carried out a coastal cruise around La Plata Island in August 2001 onboard the R/V RIGEL. The main objective was to study the distribution and interaction of ecological variables affecting phyto-zooplankton and ichthyoplankton, as a tool for the evaluation of coastal marine resources. An important aspect is the bathymetry of the area influencing the biological component. Shallower waters are found southwards allowing the occurrence of upwelling and advection processes that bring nutrient rich waters to the surface. This is shown by the high chlorophyll "a" content found in the south, favorable for phyto- and zooplankton production, also abundant in that region. The cellular biomass was composed by species that are indicative of mixed waters, warm-oceanic and upwelling waters with increased abundance towards the south. The tendency of increased biological productivity in the southern margin of La Plata Island is coincident with other ecosystems such as the Galápagos Islands and Santa Clara Island. These southern areas area important ecological niches, i.e. birds and marine mammals, decisive for coastal marine resources support. It is of extreme importance to continue the vigilance and control of these areas, specially due to the negative effects that the proximity of commercial marine traffic may produce.
URI: http://hdl.handle.net/1834/2318
ISSN: 1390-0226
Appears in Collections:1. Acta Oceanográfica del Pacífico

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