1. Repositorio Institucional del Tecnológico Nacional de México (RI - TecNM)
  2. Divulgación Científica
  3. Campeche
  4. Instituto Tecnológico Superior de Champotón (Divulgación)

Please use this identifier to cite or link to this item: https://rinacional.tecnm.mx/jspui/handle/TecNM/14245
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dc.contributor.authorNúñez-Vázquez, Erick-
dc.contributor.authorPoot Delgado, Carlos Antonio-
dc.creatorPoot Delgado, Carlos Antonio-
dc.date.accessioned2026-10-22T00:18:06Z-
dc.date.available2026-10-22T00:18:06Z-
dc.date.issued2022-11-22-
dc.identifier.urihttps://rinacional.tecnm.mx/jspui/handle/TecNM/14245-
dc.descriptionIn September and November 2016, eight marine sampling sites along the coast of the southeastern Gulf of Mexico were monitored for the presence of lipophilic and hydrophilic toxins. Water temperature, salinity, hydrogen potential, dissolved oxygen saturation, inorganic and phytoplankton abundance were also determined. Two samples filtered through glass fiber filters were used for the extraction and analysis of paralytic shellfish toxins (PSTs) by lateral flow immunochromatography (IFL), HPLC with post-column oxidation and fluorescent detection (FLD) and UHPLC coupled to tandem mass spectrometry (UHPLC-MS/MS). Elevated nutrient contents were associated with the sites of rainwater discharge or those near anthropogenic activities. A predominance of the dinoflagellate Pyrodinium bahamense was found with abundances of up to 104 cells L􀀀1. Identification of the dinoflagellate was corroborated by light and scanning electron microscopy. Samples for toxins were positive by IFL, and the analogs NeoSTX and STX were identified and quantified by HPLC-FLD and UHPLC-MS/MS, with a total PST concentration of 6.5 pg cell􀀀1. This study is the first report that confirms the presence of PSTs in P. bahamense in Mexican waters of the Gulf of Mexico.es_MX
dc.language.isospaes_MX
dc.publisherTecnológico Nacional de Méxicoes_MX
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/4.0es_MX
dc.subjectinfo:eu-repo/classification/cti/2es_MX
dc.subject.otherparalytic shellfish toxinses_MX
dc.subject.otherparalytic shellfish poisoninges_MX
dc.subject.othersaxitoxines_MX
dc.subject.otherHPLC-FLD; UHPLC-MS/MSes_MX
dc.subject.otherPyrodinium bahamensees_MX
dc.subject.otherphytoplanktones_MX
dc.titleParalytic Shellfish Toxins of Pyrodinium bahamense (Dinophyceae) in the Southeastern Gulf of Mexicoes_MX
dc.typeinfo:eu-repo/semantics/articlees_MX
dc.contributor.directorNA, NA-
dc.rights.accessinfo:eu-repo/semantics/openAccesses_MX
dc.publisher.tecnmInstituto Tecnológico Superior de Champotónes_MX
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