Abstract
Eggs of the European lobster, Homarus gammarus (L.), were exposed to malachite green (5, 10, 15 mg 1−1: 10 min), glutaraldehyde (50, 100, 150 mg 1−1: 3 min) and iodine as BuffodineTM (50, 100, 150 mg 1−1: 10 min). The efficiency of the treatments was tested by incubating eggs individually in wells of multiwell dishes with TSB agar for 14 days after exposure. In order to find any effect on viability, batches of 30 eggs from each of three females were incubated artificially in a recirculation system for 19 days and repeatedly exposed to the disinfectants. Iodine as Buffodine (150 mg 1−1) was the only treatment that resulted in a significant decrease of the bacterial growth on lobster eggs, but the treatment also resulted in inhibited hatching compared with the control group. Thus, our results indicate that treatment with 150mg−1 iodine as Buffodine could be a strategy for reducing bacterial growth on lobster eggs when massive egg mortality due to bacteria is otherwise unavoidable. The treatment could, however, lead to decreased viability of larvae due to inhibited hatching.
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Uglem, I., Elias Uksnøy, L. & Bergh, ø. Chemical treatment of lobster eggs against epibiotic bacteria. Aquacult Int 4, 1–8 (1996). https://doi.org/10.1007/BF00175216
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DOI: https://doi.org/10.1007/BF00175216