Fluoride in Antarctic Krill ( Euphausia superba) and Atlantic Krill ( Meganyctiphanes norvegica)
Samples of Antarctic krill (Euphausia superba) and Atlantic krill (Meganyctiphanes norvegica) were analysed for fluoride using a selective fluoride electrode method. Both species showed very high concentrations, a total of 1330–2400 mg F − /kg on fat free dry weight basis in raw samples whereas deep...
| Published in: | Journal of the Fisheries Research Board of Canada |
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| Main Authors: | , |
| Format: | Article in Journal/Newspaper |
| Language: | English |
| Published: |
Canadian Science Publishing
1979
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| Subjects: | |
| Online Access: | http://dx.doi.org/10.1139/f79-204 http://www.nrcresearchpress.com/doi/pdf/10.1139/f79-204 |
| Summary: | Samples of Antarctic krill (Euphausia superba) and Atlantic krill (Meganyctiphanes norvegica) were analysed for fluoride using a selective fluoride electrode method. Both species showed very high concentrations, a total of 1330–2400 mg F − /kg on fat free dry weight basis in raw samples whereas deep sea prawns (Pandalus borealis) showed a total of 18–91 and red feed (Calanus finmarchicus) 10–37 mg F − /kg. Sections of Antarctic krill were analyzed, and the highest concentration was found in the carapace, 4260 mg F − /kg fat free dry matter, compared with 570 and 750 mg F − /kg in raw and boiled muscle. Biological availability was measured in a chick assay, and showed fluoride in krill to be equally utilized as sodium fluoride added to the diet. Key words: krill, red feed, deep sea prawn, fluoride |
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