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by grvbck
499 days ago
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Valid question though, and the answer to what I think you wanted to know is >3 months: > the clams are “paid back after three months of work by releasing them to a place from which they will never be caught again”. [---] this is done because they eventually become resistant to contamination in the water. https://www.zmescience.com/ecology/poznan-mussel-water-plant... |
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