oa CSIR Science Scope - Predicting low-oxygen water and its impact on fisheries and ecosystems

Volume 1, Issue 2
  • ISSN :



The phenomenon of lobster ""walkouts"", particularly along the west coast of South Africa, has occurred periodically in the late summer over the years. Its persistence suggests that it is a natural characteristic of the southern Benguela upwelling system, but dissolved oxygen data over the past 40 years also indicate that its intensity can vary quite dramatically. An extreme event such as the ""black tide"" in early 1995 resulted in the St Helena Bay system becoming a marine desert from which it took some years to recover.

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