SciELO - Scientific Electronic Library Online

 
vol.37 número4  suppl.AStructural-functional analysis of the oligomeric protein R-phycoerythrin índice de autoresíndice de materiabúsqueda de artículos
Home Pagelista alfabética de revistas  

Servicios Personalizados

Revista

Articulo

Indicadores

Links relacionados

Compartir


Biological Research

versión impresa ISSN 0716-9760

Resumen

GARCIA, CARLOS; MARDONES, PAMELA; SFEIR, ANDREA  y  LAGOS, NÉSTOR. Simultaneous presence of Paralytic and Diarrheic Shellfish Poisoning toxins in Mytilus chilensis samples collected in the Chiloe Island, Austral Chilean Fjords . Biol. Res. [online]. 2004, vol.37, n.4, suppl., pp.721-731. ISSN 0716-9760.  http://dx.doi.org/10.4067/S0716-97602004000500002.

The study shown here provides the first indisputable evidence that shellfish can be contaminated with Paralytic Shellfish Poisoning (PSP) and Diarrheic Shellfish Poisoning (DSP) toxins during the summer season in the Southern Chilean fjords. Quantitative analysis of the simultaneous presence of PSP and DSP toxins in Mytilus chilensis samples collected in the Chiloe Island are shown. The High Performance Liquid Chromatography (HPLC) analysis with pre-column derivatization method for DSP toxins and the post-column derivatization methods for PSP toxins, both with fluorescent on-line detections, showed that both type of toxins were concentrated by the filter bivalve Mytilus chilensis in amounts above the international safe limits. The phytoplankton analysis showed the presence of both Alexandrium catenella and Dinophysis acuta in the water column. The data shows stratification of the toxic dinoflagellates in the water column, since the lowest amount of both DSP and PSP toxins were measured in the superficial and deeper levels of the water column. Moreover, the highest toxicities of both types of toxins were shown by the shellfish samples collected at a depth of 6 meters with 190 nanograms of DTX-1 / gram of digestive gland and 709.8 mg of PSP toxins / 100 grams of mussel meat.

Palabras clave : DSP toxins; PSP toxins; Dinophysistoxin-1; Patagonia fjords; Chile.

        · texto en Inglés

 

Creative Commons License Todo el contenido de esta revista, excepto dónde está identificado, está bajo una Licencia Creative Commons