Evidence of paralytic shellfish poisoning toxin in milkfish in South Taiwan

Abstract

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.

Toxicokinetics/toxicodynamics of arsenic for farmed juvenile milkfish Chanos chanos and human consumption risk in BFD-endemic area of Taiwan

“…Milkfish (Chanos chanos), a traditional food fish for people in Taiwan, is appreciated for their delicacy and is the second most important farmed fish in Taiwan. For decades, the milkfish industry ranked first in the aquaculture industry of Taiwan (Chou et al, 2003). Furthermore, milkfish is the second highest consumed fish in Taiwan (Fisheries Statistical Year Book, 2003).…”

Síndrome de envenenamiento paralizante por consumo de moluscos

“…Actualmente, la mayoría de las muertes de seres humanos por brotes de EPM o de otros eventos de moluscos tóxicos causados por dinoflagelados, ocurren porque no hay programa local o nacional de monitoreo (14-31). Las toxinas del EPM no son sólo acumuladas por bivalvos filtradores, también se ha documentado que se pueden encontrar en otros organismos, como cangrejos, gasterópodos, macarela y peces planctívoros (14,32).…”