Iron precipitates are reported from American lobsters Homarus americanus held in cold saline water of high iron concentration (11.0 mg/L). Upon aeration, an insoluble ferric oxide precipitate or hydroxide precipitate (or both) formed and was deposited within the carapace matrix and the gills, occluding the respiratory lamellae. Clinical signs included a darkened carapace and lethargy.
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Jansen et al. (1993) studied this question.
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