<< Some authors (e.g., Pennak) have noted that no animals are reported to feed
on freshwater sponges but this is not true. There is a fish in west Africa
that feeds almost exclusively on freshwater sponges. Also, closer to home,
some of the shiners in our southeastern blackwater streams feed on them
seasonally (e.g., coastal shiner, N. petersoni).
>>
Maybe a sponge from west Africa would grow better than the seemingly very
fragile local ones.
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