Fish especially rich in thiaminase are herring, capelin, suckers, smelts and various carp species, a total of some 50 species, most of which live in fresh water.
Next, to see the effect of the nanoparticles higher up in the food chain, they exposed a group of Daphnia to the plastic nanoparticles again, and then fed them to some fish called Crucian carp.
While his peers might have been trying their luck with a potential squeeze in the dark corner of a parquet-floored hall, he was sitting under the moonlight with a rod, eager to catch a handsome carp, perch or bream.
An apparently humble, but in fact exceptionally laborious, dish of braised carp's tail is a jumping-off point for a discussion of the importance of kougan, or mouth-feel, in Chinese cuisine.
The world's largest carp, these powerful fish cruise the rivers with the seasons, migrating between spawning grounds in mountain torrents and these more placid lowland waters.