A MASS MORTALITY OF FISH ASSOCIATED WITH LOW SALINITY CONDITIONS IN THE BOT RIVER ESTUARY
- 1 January 1985
- journal article
- research article
- Published by Taylor & Francis in Transactions of the Royal Society of South Africa
- Vol. 45 (3-4) , 437-447
- https://doi.org/10.1080/00359198509519502
Abstract
The Bot River estuary remains closed for prolonged periods, during which the salinities decline progessively. In October 1981, after four years of isolation from the sea, the maximum salinity in the estuary fell to 3% resulting in a mass fish mortality. The extent of this is compared with the species composition and relative abundance of fish prior to the mortality and with published records of the minimum salinities these species were previously known to tolerate.Keywords
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