Cyanobacterial neurotoxin β-N-methylamino-L-alanine (BMAA) in Shark Fins

Kiyo Mondo, Neil Hammerschlag, Margaret Basile, John Pablo, Sandra A. Banack, Deborah C Mash

Research output: Contribution to journalArticle

68 Citations (Scopus)

Abstract

Sharks are among the most threatened groups of marine species. Populations are declining globally to support the growing demand for shark fin soup. Sharks are known to bioaccumulate toxins that may pose health risks to consumers of shark products. The feeding habits of sharks are varied, including fish, mammals, crustaceans and plankton. The cyanobacterial neurotoxin β-N-methylamino-L-alanine (BMAA) has been detected in species of free-living marine cyanobacteria and may bioaccumulate in the marine food web. In this study, we sampled fin clips from seven different species of sharks in South Florida to survey the occurrence of BMAA using HPLC-FD and Triple Quadrupole LC/MS/MS methods. BMAA was detected in the fins of all species examined with concentrations ranging from 144 to 1836 ng/mg wet weight. Since BMAA has been linked to neurodegenerative diseases, these results may have important relevance to human health. We suggest that consumption of shark fins may increase the risk for human exposure to the cyanobacterial neurotoxin BMAA.

Original languageEnglish
Pages (from-to)509-520
Number of pages12
JournalMarine Drugs
Volume10
Issue number2
DOIs
StatePublished - Feb 1 2012

Fingerprint

Sharks
Neurotoxins
Alanine
Plankton
Food Chain
Health
Cyanobacteria
beta-N-methylamino-L-alanine
Surgical Instruments
Neurodegenerative Diseases
Habits
Mammals
Fishes
High Pressure Liquid Chromatography
Weights and Measures
Population

Keywords

  • β-N-methylamino-L-alanine
  • Conservation
  • Cyanobacteria
  • Elasmobranch
  • Neurodegenerative disease
  • Neurotoxin

ASJC Scopus subject areas

  • Drug Discovery

Cite this

Cyanobacterial neurotoxin β-N-methylamino-L-alanine (BMAA) in Shark Fins. / Mondo, Kiyo; Hammerschlag, Neil; Basile, Margaret; Pablo, John; Banack, Sandra A.; Mash, Deborah C.

In: Marine Drugs, Vol. 10, No. 2, 01.02.2012, p. 509-520.

Research output: Contribution to journalArticle

Mondo, K, Hammerschlag, N, Basile, M, Pablo, J, Banack, SA & Mash, DC 2012, 'Cyanobacterial neurotoxin β-N-methylamino-L-alanine (BMAA) in Shark Fins', Marine Drugs, vol. 10, no. 2, pp. 509-520. https://doi.org/10.3390/md10020509
Mondo, Kiyo ; Hammerschlag, Neil ; Basile, Margaret ; Pablo, John ; Banack, Sandra A. ; Mash, Deborah C. / Cyanobacterial neurotoxin β-N-methylamino-L-alanine (BMAA) in Shark Fins. In: Marine Drugs. 2012 ; Vol. 10, No. 2. pp. 509-520.
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