Evidence of paralytic shellfish poisoning toxin in milkfish in South Taiwan

• Published in: Food additives & contaminants. Part A, Chemistry, analysis, control, exposure & risk assessment Vol. 20; no. 6; pp. 560 - 565
• Main Authors: Chou, H.N, Chung, Y.C, Cho, W.C, Chen, C.Y
• Format: Journal Article
• Language: English
• Published: London Taylor & Francis Group 01.06.2003; Taylor & Francis
• Subjects: Alexandrium Minutum; algal blooms; Animals; Biological and medical sciences; Body Burden; Chanos chanos; Chromatography, High Pressure Liquid - methods; crabs; Crustacea - metabolism; Decapoda; Dinoflagellida - metabolism; exposure duration; Fish and seafood industries; fish ponds; Fishes - metabolism; food additives; Food Chain; Food industries; Food microbiology; Fundamental and applied biological sciences. Psychology; high performance liquid chromatography; intestines; Marine Toxins - pharmacokinetics; Marine Toxins - toxicity; Milkfish; monitoring; paralytic shellfish poisoning; Paralytic Shellfish Poisoning Toxins; poisoning; Scylla serrata; sediments; stomach; Taiwan; Tissue Distribution; tissues; toxicity; toxins; Taiwan; Asia; Edible fish; milkfish. Alexandrium minutum; Paralytic shellfish poisoning; Toxin; Vertebrata; Surveillance; paralytic shellfish poisoning toxins; Pisces; Quality control; Phytoplankton; Chanos chanos; Biological contamination; Quantitative analysis
• ISSN: 1944-0049; 0265-203X; 1944-0057; 1464-5122
• DOI: 10.1080/0265203031000070795

Natural phytoplankton blooms of the dinoflagellate Alexandrium minutum, milkfish (Chanos chanos) exposed to natural blooms, sediment and mangrove crab (Scylla serrata) were analysed for paralytic shellfish poisoning toxins by high-performance liquid chromatography. The toxin profiles of milkfish and mangrove crab were similar to that of A. minutum collected from blooming fishponds. In a laboratory A. minutum-blooming environment, the stomach and intestine of milkfish accumulated paralytic shellfish poisoning toxins during the exposure period. The non-visceral tissues were non-toxic. However, milkfish lost their entire body burden of toxin on the first day of transferring to a toxic algae-free environment. The result shows that milkfish concentrate paralytic shellfish poisoning toxins in digestive organs and did not retain toxins.