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Figure 1 : LC-MS/MS chromatograms of (a) a standard solution of BMAA (β-N-methylamino-L-alanine) and its isomers, BAMA (β-Amino-N-methyl-alanine), AEG (N-(2-aminoethyl) glycine) and DAB (2,4-diaminobutyric acid), (b) blue mussel (Mytilus edulis), (c) oyster (Crassostrea gigas), (d) shrimp (Caridea), (e) plaice (Pleuronectes platessa), (f) herring (Clupea harengus) and (g) char (Salvelinus alpinus).