Abstract
It is not scientific for us to be speaking of pH, a ratio of ions, SO 2 or any other factor of this kind as ‘killing’ trees or fish. The actual causes of death of animals and plants are few and specific, and we must refer accurately to what may be contributory causes to changes in populations. A widespread characteristic of the freshwater biota is the evolution of a remarkable range of dispersal mechanisms which enable the recolonization of an environment that has suffered a catastrophe and then recovered to a condition which will again support that biota. The one general exception to that are the fish, and it is therefore much more important to establish whether a body of water is capable of supporting fish than whether there are actually fish in it.
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Schedule a callMore From: Philosophical Transactions of the Royal Society of London. B, Biological Sciences
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