12-22-2019, 05:01 AM
[quote riverdog]Because the parasite needs the birds, snails (as mention rotenone will kill some snails) and the fish for its lifecycle. It doesn't reproduce even if the birds are still there without the other 2. It will take some time to ramp back up with all 3 animals in place to the very high levels of infection Pelican suffered from.[/quote]
This is correct. If the snails are knocked back then there may be a delay before the fish have parasite burdens similar to pre treatment. If they have come back rapidly, then there won't be much of a difference from pre rotenone, because the waterbirds, (the definitive end stage host) will be there in abundance, pooping in the water and intiiating the life cycle.
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This is correct. If the snails are knocked back then there may be a delay before the fish have parasite burdens similar to pre treatment. If they have come back rapidly, then there won't be much of a difference from pre rotenone, because the waterbirds, (the definitive end stage host) will be there in abundance, pooping in the water and intiiating the life cycle.
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