Paralytic shellfish toxin profiles in net phytoplankton samples from Bahía Concepción, Gulf of California, Mexico

Paralytic shellfish toxin profiles in net phytoplankton samples from Bahia Concepcion, Gulf of California, Mexico are evaluated. Paralytic shellfish poisoning (PSP) is caused by a group of toxins generated by planktonic algae upon which the shellfish feed. Paralytic shellfish toxins (PSTs) comprise...

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Bibliographic Details
Published in:Marine pollution bulletin 2006-07, Vol.52 (7), p.800-806
Main Authors: Gárate-Lizárraga, Ismael, Bustillos-Guzmán, José Jesús, López-Cortes, David Javier, Hernández-Sandoval, Francisco, Erler, Katrin, Luckas, Bernd
Format: Article
Language:English
Subjects:
Animal, plant and microbial ecology
Animals
Applied ecology
Biological and medical sciences
Dinoflagellida - chemistry
Dinoflagellida - isolation & purification
Ecotoxicology, biological effects of pollution
Environmental Monitoring
Fundamental and applied biological sciences. Psychology
Marine
Marine and brackish environment
Mexico
Nitrates - analysis
Phosphates - analysis
Phytoplankton - chemistry
Phytoplankton - isolation & purification
Saxitoxin - analogs & derivatives
Saxitoxin - analysis
Seawater - analysis
Sodium Chloride - analysis
Temperature
Time Factors
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Summary:Paralytic shellfish toxin profiles in net phytoplankton samples from Bahia Concepcion, Gulf of California, Mexico are evaluated. Paralytic shellfish poisoning (PSP) is caused by a group of toxins generated by planktonic algae upon which the shellfish feed. Paralytic shellfish toxins (PSTs) comprise a suite of potent neurotoxins that act by blocking sodium channels in nerve axons. The major vectors for PST are the bivalve mollusks, which are accumulated and sometimes metabolized by shellfish. More than 20 toxins are responsible for PSP, which are derivatives of saxitoxin. These toxins may cause severe human poisoning when contaminated shellfish are consumed. The production of PSTs by dinoflagellates is thoroughly documented and confirmed in Mexican waters, derived from Pyrodinium bahamense var. compressa, G. catenatum, and Alexandrium catenella, the main species linked to PSP episodes.
ISSN:0025-326X
1879-3363
DOI:10.1016/j.marpolbul.2006.03.003