oa African Zoology - Fish community structures in Zostera and non-Zostera regions of the Kromme estuary, St Francis Bay

Volume 19, Issue 4
  • ISSN : 1562-7020
  • E-ISSN: 2224-073X



Comparative seine netting for fish was performed quarterly during 1981 in the Zostera and non-Zostera regions of the upper middle reaches of the Kromme estuary. Twenty-four fish and three crustacean species were recorded. The catches were dominated by the following species: Liza dumerili, Glossogobius glurus and Gilchristella aestuarius (Pisces). Only two fish species (Monodactylus falciformes and Rhabdosargus holubi) were recorded in significantly (P<O,O5; P<O,O5 respectively) higher numbers in the Zostera than in the non-Zostera regions and community analyses (comparing numbers, species richness and diversity) revealed no significant (P>O,O5) differences between the catches from the two regions. These results are contrary to findings of most other researchers and possible reasons for these differences are discussed.

Loading full text...

Full text loading...


Article metrics loading...


This is a required field
Please enter a valid email address
Approval was a Success
Invalid data
An Error Occurred
Approval was partially successful, following selected items could not be processed due to error