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Reproduction and recruitment patterns of the surf clam Donax serra (Bivalvia, Donacidae) on two Namibian sandy beaches
Item type: Journal Article • Journal: South African Journal of Marine Science • Authors: J. Laudien T. Brey W. E. ArntzReproduction and recruitment of the surf clam Donax serra on two Namibian beaches were studied over a period of two years. Histological examination of the gonads indicated a discontinous annual reproductive cycle, related to monthly mean sea surface temperature. The... -
Catch-and-effort estimates for the gillnet and beach-seine fisheries in the Western Cape, South Africa
Item type: Journal Article • Journal: South African Journal of Marine Science • Authors: K. Hutchings S. J. LamberthTotal catch and effort for the inshore net-fisheries in the Western Cape, South Africa, were estimated by means of face-to-face questionnaire, telephone and access point surveys, analysis of factory records and compulsory catch returns. In most areas, gillnet fishing effort... -
Bycatch in the gillnet and beach-seine fisheries in the Western Cape, South Africa, with implications for management
Item type: Journal Article • Journal: South African Journal of Marine Science • Authors: K. Hutchings S. J. LamberthInterview questionnaires and access point surveys were conducted in order to describe and quantify the catch composition of the inshore net-fisheries in the Western Cape, South Africa. A total of 138 562 fish, representing 29 species from 20 families, was... -
Socio-economic characteristics of gillnet and beach-seine fishers in the Western Cape, South Africa
Item type: Journal Article • Journal: South African Journal of Marine Science • Authors: K. Hutchings S. J. Lamberth J. K. TurpieData collected by questionnaire and telephone surveys conducted during 1998 and 1999 are used to describe the socio-economic characteristics of inshore netfishers in the Western Cape. Approximately two-thirds of netfishers work or have worked in other fishing sectors and a... -
An interdisciplinary method to harmonise ecology, economy and co-management: fisheries exploitation in Lake Nabugabo, Uganda
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: I Vaccaro --- Department of Anthropology and McGill School of Environment, Canada CA Chapman --- Department of Anthropology and McGill School of Environment, Canada EA Nyboer --- Department of Biology, Canada M Luke --- McGill School of Environment, Canada A Byekwaso --- National Fisheries Resources Research Institute, Uganda C Morgan --- McGill School of Environment, Canada D Mbabazi --- National Fisheries Resources Research Institute, Uganda D Twinomugisha --- Makerere University Biological Field Station, Uganda LJ Chapman --- Department of Biology, CanadaCollective action theory predicts that natural resource management at a local level has a higher probability of success if territoriality and jurisdiction of the managerial institution are in synchrony with mobility and territoriality of the resource and exploitation patterns of... -
Abundance, biomass and species composition of nearshore fish assemblages in Ghana, West Africa
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: FKE Nunoo DB Eggleston CJ VanderpuyeMany of the world's fish populations are overexploited, including Ghana's fish resources. This study examines spatio-temporal trends in fish species composition in relation to biotic, abiotic and anthropogenic factors, towards achieving better-informed management of the beach-seine fisheries. Fishery-dependent data were... -
White shark and other chondrichthyan interactions with the beach-seine (treknet) fishery in False Bay, South Africa
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: SJ LamberthPublic perception has been that an apparent increase in the nearshore occurrence of white sharks Carcharodon carcharias in False Bay, on the south coast of South Africa, can at least be partly attributed to beach-seine (treknet) operations attracting sharks into... -
Biological characteristics of sardine caught by the beach-seine fishery during the KwaZulu-Natal sardine run
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: CD van der Lingen --- Branch Fisheries, Department of Agriculture, South Africa M Hendricks --- Branch Fisheries, Department of Agriculture, South Africa MD Durholtz --- Branch Fisheries, Department of Agriculture, South Africa G Wessels --- Marine Research Institute and Zoology Department, South Africa C Mtengwane --- Branch Fisheries, Department of Agriculture, South AfricaCatches of sardine Sardinops sagax made by the beach-seine fishery off the KwaZulu-Natal (KZN) coast during the annual winter sardine run have been sampled intermittently since 1951, and a substantial amount of data on various biological characteristics of sardine caught... -
Diversity and coverage of seagrass ecosystems in south-west Madagascar
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: JMO Hantanirina --- , UK S Benbow --- , UKSeagrass meadows provide important nursery and feeding grounds for many commercially valuable fish species. Here, we address the paucity of published information on the status of seagrasses in Madagascar by documenting the results from ecological surveys of 11 seagrass beds... -
High population connectivity and Pleistocene range expansion in the direct-developing plough shell Bullia rhodostoma along the South African coast
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: T Muteveri --- Evolutionary Genomics Group, Department of Botany and Zoology, South Africa CA Matthee --- Evolutionary Genomics Group, Department of Botany and Zoology, South Africa RCK Bowie --- Museum of Vertebrate Zoology and Department of Integrative Biology, USA S von der Heyden --- Evolutionary Genomics Group, Department of Botany and Zoology, South AfricaPleistocene climatic and oceanographic changes have influenced the distribution of marine biodiversity in southern Africa. Most evidence, however, has been derived from rocky shore or demersal taxa; data on sandy shore species are limited, despite severe threats to many sandy... -
Surfing in the sandy-beach whelk Bullia digitalis (Dillwyn)
Item type: Journal Article • Journal: African Zoology • Authors: A.C. Brown --- Department of Zoology, South AfricaA brief, integrated summary is presented of published and unpublished work relevant to surfing (swash riding) in intertidal members of the genus Bullia (Caenogastropoda), together with previously unreported investigations of the specific gravity of B. digitalis and the directional control... -
Diversity of benthic macrofauna of the flood-tidal delta of the Nahoon Estuary and adjacent beach,South Africa
Item type: Journal Article • Journal: African Zoology • Authors: Mary Bursey --- East London Museum, South Africa Tris Wooldridge --- Zoology Department, South AfricaMacrobenthos of the Nahoon estuarine flood-tidal delta was surveyed to determine species composition, distribution and abundance; establish possible patterns in community structure and compare assemblages with those of adjacent sandy beach and lower estuary. Macrozoobenthos retained by a 1 mm... -
Frontiers of freedom: race, landscape and nationalism in the coastal cultures of South Africa
Item type: Journal Article • Journal: Anthropology Southern Africa • Authors: Leslie Bank --- Fort Hare Institute of Social and Economic Research, South AfricaThe idea that whiteness is not a natural category but one which requires construction, maintenance and investment has provoked a rich scholarship, including in South Africa. The scholarship on whiteness in southern Africa has been marked, in particular, by a... -
Disentangling the identities and distribution patterns of the introduced beachfleas Orchestia gammarellus and Platorchestia platensis (Crustacea: Amphipoda: Talitridae) in South Africa
Item type: Journal Article • Journal: African Zoology • Authors: Natalie Diemer --- Department of Biological Sciences and Centre for Invasion Biology, South Africa Charles L Griffiths --- Department of Biological Sciences and Centre for Invasion Biology, South Africa Alan Hodgson --- Department of Zoology and Entomology, South AfricaTwo introduced beachfleas, Orchestia gammarellus and Platorchestia platensis, have been recorded from South Africa, but have been misidentified by some earlier researchers and, prior to this study, each was also known from just a few, scattered observations, such that their... -
Ghost crab burrow density at Watamu Marine National Park: An indicator of the impact of urbanisation and associated disturbance?
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: HFR Hereward --- School of Animal, Rural and Environmental Sciences, UK LK Gentle --- School of Animal, Rural and Environmental Sciences, UK ND Ray --- School of Animal, Rural and Environmental Sciences, UK RD Sluka --- A Rocha Kenya, KenyaGhost crab (Ocypode species) burrow densities have previously been used as an indicator of anthropogenic impact. This study aimed to assess the burrow density of Ocypode species (O. ryderi and O. cordimanus) at four sites across Watamu Marine National Park,... -
Ecosystem service values of sediment generation and entrapment by marginal coral reefs at Sodwana Bay, South Africa
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: SCS Laing --- , South Africa MH Schleyer --- , South Africa JK Turpie --- , South AfricaCoral reefs provide a multitude of goods and services, some of which are difficult to value due to their intangible nature and the absence of markets to ascribe their relative worth. The coral reefs of Sodwana Bay on the northeast... -
Beach profiling and ghost crab densities on a hawksbill turtle nesting beach in the Seychelles
Item type: Journal Article • Journal: African Zoology • Authors: Julie A Gane --- , South Africa Colleen T Downs --- , South Africa Benjamin Harris --- , South Africa Mark Brown --- , South AfricaIncreasing beach sediment loss from erosion and high levels of crab Ocypode spp. predation are threatening turtle nests and nesting habitat. The 900 m long beach on Cousine Island, Seychelles, supports a nesting population of approximately 70–130 hawksbill turtle Eretmochelys... -
Morphological and molecular investigation of Scolelepis agilis (Verrill, 1873) (Annelida: Spionidae) from beaches of the Atlantic coast of North America
Item type: Journal Article • Journal: African Zoology • Authors: Corey Bonavia --- Hofstra University, United States Maureen Krause --- Hofstra University, United States Jason Williams --- Hofstra University, United StatesPolychaete worms of the genus Scolelepis are one of the most abundant members of beach ecosystems worldwide. Along the Atlantic coast of North America, specimens of Scolelepis inhabiting high-energy beaches have long been erroneously identified as the European species Scolelepis... -
Effects of diamond mining on sandy beaches in southern Namibia – the use of Tylos granulatus (Isopoda: Oniscidea) as an indicator species
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: K Hutchings --- , South Africa A Rees --- , South Africa A Pulfrich --- , South Africa BM Clark --- , South AfricaSandy beaches provide vital ecosystem services and support diverse ecological communities but are increasingly threatened by anthropogenic pressures. In particular, intertidal mining disrupts sandy beaches and challenges their resilience, yet these ecosystems retain some capacity for environmental recovery. This study...