Original Articles

TURBIDITY GRADIENTS IN TWO INDO-PACIFIC ESTUARIES AND THEIR INFLUENCE ON FISH DISTRIBUTION

Published in: Southern African Journal of Aquatic Sciences
Volume 18 , issue 1-2 , 1992 , pages: 51–63

DOI: 10.1080/10183469.1992.9631324

Author(s): D.P. Cyrus Coastal Research Unit of Zululand, Department of Zoology, South Africa

Keywords: turbidity gradients , fish distribution , estuaries , Indo-Pacific

Abstract

Research undertaken in two widely separated estuaries in the Indo-Pacific, showed that both have distinct turbidity gradients. In the turbid St Lucia System, on the South East Coast of Africa (range 2 to 568 Nephelometric Turbidity Units (NTU)), different turbidity patterns were observed during summer and winter. The Embley Estuary, on the eastern side of the Gulf of Carpentaria, Queensland, Australia, although also turbid, had a much more restricted range (0.6 to 55.0 NTU), and showed three distinct seasonal patterns, referred to as the Wet, Early Dry and Late Dry.

« SOME ASPECTS OF THE ECOLOGY OF THE FRESHWATER CRAB (POTAMONAUTES PERLATUS MILNE EDWARDS) IN THE UPPER REACHES OF THE BUFFALO RIVER, EASTERN CAPE PROVINCE, SOUTH AFRICA.

FLUX OF INORGANIC NUTRIENTS AND PARTICULATE CARBON BETWEEN A SPARTINA MARITIMA SALT MARSH AND THE SWARTKOPS ESTUARY, EASTERN CAPE »