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Physical determinants of the distribution and abundance of the burrowing ocypodid crab Paratylodiplax blephariskios Stebbing in the St. Lucia and Mhlathuze estuaries, KwaZulu-Natal, South Africa
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: RK Owen AT Forbes DP Cyrus SE PiperThe burrowing ocypodid crab, Paratylodiplax blephariskios, is endemic to the southeast coast of southern Africa where it forms an important component of the estuarine benthic fauna in muddy substrata. Two estuaries in KwaZulu-Natal, namely St. Lucia and the Mhlathuze, were... -
A short note on factors affecting the geographic distribution of the burrowing ocypodid crab, Paratylodiplax blephariskios: temperature, habitat and competition
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: RK Owen --- Department of Zoology, South AfricaThe known distribution of Paratylodiplax blephariskios extends from the Morrumbene estuary in Mozambique to the Mngazana estuary in the Eastern Cape. Laboratory data on the temperature tolerance of P. blephariskios indicated that the crab could survive temperatures between 12.5°C and... -
Benthic faunal distribution and abundance in the Mfolozi–Msunduzi estuarine system, KwaZulu-Natal, South Africa
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: SG Ngqulana --- Coastal Research Unit of Zululand, Department of Zoology, South Africa RK Owen --- Coastal Research Unit of Zululand, Department of Zoology, South Africa L Vivier --- Coastal Research Unit of Zululand, Department of Zoology, South Africa DP Cyrus --- Coastal Research Unit of Zululand, Department of Zoology, South AfricaThe Mfolozi–Msunduzi estuarine system historically shared a common mouth with the St Lucia estuarine system. In 1952, a separate mouth was created, 1.5 km south of St Lucia mouth, to prevent silt carried by the Mfolozi River from entering Lake... -
A comparison between fish assemblages in mangrove forests and on intertidal flats at Ungwana Bay, Kenya
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: DO Mirera --- , Kenya JG Kairo --- , Kenya EN Kimani --- , Kenya FK Waweru --- , KenyaFish assemblages of mangrove forest patches and adjacent intertidal flats in Ungwana Bay were compared using stake-net sampling in the mangrove forest and intertidal flat habitats between December 2002 and November 2003. Four forest sites were compared with paired intertidal... -
Diversity of decapod crustaceans at the interface of unconsolidated seabed areas and rocky shores in tropical/subtropical Brazil
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: A Fransozo --- Departamento de Zoologia, Instituto de Biociências, Brazil M Furlan --- Departamento de Zoologia, Instituto de Biociências, Brazil V Fransozo --- , Brazil G Bertini --- , Brazil RC da Costa --- Departamento de Ciências Biológicas, Faculdade de Ciências, Brazil LC Fernandes-Góes --- , BrazilThe decapod crustacean assemblages from unconsolidated seabed areas located near rocky shores in the Ubatuba region on the south-east coast of Brazil were analysed by investigating the abundance, richness, diversity and dominance of species. The relationships of the sediment and... -
Affinities of some common estuarine macroinvertebrates to salinity and sediment type: empirical data from Eastern Cape estuaries, South Africa
Item type: Journal Article • Journal: African Zoology • Authors: Peter R. Teske --- Department of Zoology, South Africa Tris H. Wooldridge --- Department of Zoology, South AfricaFourteen species of subtidal macrobenthos present in thirteen Eastern Cape estuaries, South Africa, were compared with regard to correlations with two important environmental variables (salinity and sediment mud content). Species were divided into five different faunal components based on their...