University of Port Elizabeth

About: University of Port Elizabeth is a based out in . It is known for research contribution in the topics: Population & Estuary. The organization has 1067 authors who have published 1538 publications receiving 38560 citations. The organization is also known as: UPE & Universiteit van Port Elizabeth.

A comparison of poverty in South Africa's nine provinces

Abstract: Poverty in South Africa varies greatly across the nine provinces. An accurate estimation of relative poverty shares is important because they serve as key indices for targeting social expenditure. In this article we test the robustness of provincial poverty rankings against changes in measurement methodology. In recent years, a large body of international literature has developed concerning the choice of an appropriate poverty line and the construction of more appropriate poverty measures. This article uses two of these recent developments ‐ the concept of a poverty critical range in place of a single poverty line and distribution‐sensitive decomposable poverty measures — to re‐examine provincial poverty. Results are checked across two recent national data sets.

Seasonal abundance, distribution and catch per unit effort of fishes in the Swartkops estuary

Abstract: Catch per unit effort was obtained for the nekton of the Swartkops estuary near Port Elizabeth by means of gill netting. Fifty gill net catches were made in which 1 269 fish were caught in areas representative of the mouth, middle and upper reaches of the estuary. Pomadasys commersonni, already shown to be the most abundant angling species in the estuary, dominated gill net catches both in terms of mass (29%) and numbers (17%). The family Mugilidae (five species) comprised 25% of the mass and 42% of the numbers caught. Environmental factors and availability of food that might determine distribution offish in the estuary are discussed. The largest mean mass per individual was found in Chanos chanos (4 473 g), Elops machnata (1 656 g) and Valamugil buchanani (1 580 g). Lowest mean masses were recorded for Monodactylus falciformis (63 g), Rhabdosargus holubi (88 g) and Liza dumerili (94 g).

The ichthyofauna associated with Zostera capensis Setchell in the Swartkops estuary, South Africa

Abstract: The ichthyofauna associated with Zostera beds in the lower reaches of the Swartkops estuary was examined by means of haul seine netting over 15 months. Thirty-nine fish species were caught in the Zostera beds and the small shoaling species, Hepsetis hreviceps and Gilchrlstella aestuarlus, constituted 55% of the total catch in terms of numbers. Juveniles of six mullet species occurred in the Zostera and recruitment took place throughout the year. Sparids such as Rhabdosargus holubi and Dlplodus sargus showed marked spring and summer recruitment. The recruitment patterns of Juveniles to the Zostera beds is correlated with documented breeding cycles of adults, particularly those breeding in the shallow inshore marine environment. The Swartkops Zostera beds were found to form an integral and important part of the nursery function of the estuary.

The fish community of East Cape tidal pools and an assessment of the nursery function of this habitat

Abstract: Fish occurring in tidal pools in the lower balanoid zone near Port Elizabeth were examined by visual census and rotenone collections. Numerically, Cinidae constituted 28% of the community, Sparidae 23%, Gobiidae 17% and the Cheilodactylidae 12%, while eleven other families contributed to the remaining 20%. The 44 species recorded were classified as either residents (e.g. Clinidae or Gobiidae) or transients. The transient species were chiefly juvenile Sparidae, Cheilodactylidae and Mugilidae although numerous tropical vagrants also occurred in the summer months. Tidal pools, when compared with other coastal habitats, were found to be an important nursery area for some of the transient species, particularly Sparodon durbanensis, Diplodus cervinus hottentotus, Chirodactylus brachydactylus and Cheilodactylus fasciatus