Revista de Investigación y Desarrollo Pesquero 2010 Nro 20

Permanent URI for this collection

https://marabierto.inidep.edu.ar/handle/inidep/140

Browse

Browsing Revista de Investigación y Desarrollo Pesquero 2010 Nro 20 by Subject "chlorophylls"

Now showing 1 - 1 of 1
  • No Thumbnail Available
    Item
    El ecosistema de la plataforma patagónica austral durante el verano, marzo-abril 2000. Estimación de la biomasa fitoplanctónica a partir de la distribución de clorofila a
    (Mar del Plata : Instituto Nacional de Investigación y Desarrollo Pesquero (INIDEP), 2010) Reta, R.
    The distribution of chlorophyll-a concentration in the austral Patagonian (SW Atlantic Ocean) shelf between 47º S-54º S with in situ data collected in March-April 2000 is analyzed. Data derived from Niskin samples and continuous in situ fluorometry. Two areas with high chlorophyll values (~- 1.6 mg m-3) on the central shelf corresponding to the area between isolines 100-150 m depth and near the coastal region off Bahía Grande south of the Santa Cruz river (Argentina) were identified. Minimum values (~, 0.5 mg m-3) were found in the coastal zone close to the 50 m isobath and to the southern region of the Patagonian shelf. Fluorescence: chlorophyll-a concentration ratios were more variable at sea surface than at different depths of the water column. The possible causes for the vertical distribution of chlorophyll-a are analyzed.