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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... -
A study of the ichthyofauna of a small tropical reservoir, south-eastern lowveld, Zimbabwe
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: T Dalu --- Department of Biological Sciences, Zimbabwe BW Clegg --- Malilangwe Wildlife Reserve, Zimbabwe T Nhiwatiwa --- Department of Biological Sciences, ZimbabweFish diversity in Malilangwe Reservoir in the south-eastern lowveld of Zimbabwe was investigated in 2011 to determine the community structure. The aim of this study was to determine the current status of an artificial fish community in a small reservoir... -
Sharks caught in the protective gill nets off KwaZulu-Natal, South Africa. 10. The dusky shark Carcharhinus obscurus (Lesueur 1818)
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: SFJ Dudley G Cliff MP Zungu MJ SmaleBetween 1978 and 1999, a total of 5 626 dusky sharks Carcharhinus obscurus, constituting 20% of the total shark catch, was caught in the protective nets off KwaZulu-Natal, South Africa. The mean annual catch was 256 sharks (SD = 107.5,... -
Influence of the annual sardine run on catches of large sharks in the protective gillnets off KwaZulu-Natal, South Africa, and the occurrence of sardine in shark diet
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: SFJ Dudley --- , South Africa G Cliff --- , South AfricaShark catches in the protective nets set off the beaches of KwaZulu-Natal (KZN), South Africa, are strongly influenced by the sardine run, the winter influx of shoals of Sardinops sagax from the south-west. The effect of the sardine run, which... -
Evidence of recovery of the linefishery in the Berg River Estuary, Western Cape, South Africa, subsequent to closure of commercial gillnetting
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: K Hutchings BM Clark LJ Atkinson CG AttwoodA total of 248 roving creel surveys along the length of the Berg River Estuary, in the Western Cape, South Africa, recorded 626 shore-angler and 88 boat-angler outings over the period December 2002–November 2005. Catch-and-effort information was obtained from catch... -
Abundance, composition and distribution of solid wastes in the Tanzanian waters of Lake Victoria
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: GW Ngupula --- Tanzania Fisheries Research Institute (TAFIRI), Tanzania RJ Kayanda --- Tanzania Fisheries Research Institute (TAFIRI), Tanzania CA Mashafi --- Tanzania Fisheries Research Institute (TAFIRI), TanzaniaThe abundance, composition and distribution of solid waste in the Tanzanian waters of Lake Victoria were quantified during surveys in May and October 2013 at 68 stations in six depth strata using the bottom trawl swept area method. By weight,... -
Morphometric variation in the cutlassfish Trichiurus lepturus on the Kenyan coast: implications for stock identification and management
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: SM Mwakiti --- University of Eldoret, Kenya B Kaunda-Arara --- University of Eldoret, Kenya CM Mlewa --- Pwani University, Kenya R Ruwa --- Kenya Marine Fisheries Research Institute, KenyaMorphometric variation was used to study population structure of the cutlassfish Trichiurus lepturus on the Kenyan coast. In all, 16 morphometric measurements taken from 193 individuals from six sites were subjected to multivariate statistical analysis in order to determine possible... -
Focusing on monofilament nets while overlooking the priorities of artisanal fisheries governance in Senegal
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: D Thiao --- Centre de Recherches Océanographiques de Dakar-Thiaroye (CRODT), Senegal A Mbaye --- Centre de Recherches Océanographiques de Dakar-Thiaroye (CRODT), Senegal M Dème --- Centre de Recherches Océanographiques de Dakar-Thiaroye (CRODT), Senegal HD Diadhiou --- Centre de Recherches Océanographiques de Dakar-Thiaroye (CRODT), SenegalDespite its legal prohibition since 1998, the nylon monofilament net is still widely used in Senegalese artisanal fisheries. To achieve a complete ban on monofilament use, it is necessary to understand the main arguments for its continued use and what... -
Age, growth and per-recruit stock assessment of southern mullet Chelon richardsonii in Saldanha Bay and Langebaan Lagoon, South Africa
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: M Horton --- Department of Biological Sciences, South Africa D Parker --- Department of Biological Sciences, South Africa H Winker --- Branch: Fisheries Management, Department of Agriculture, South Africa SJ Lamberth --- Branch: Fisheries Management, Department of Agriculture, South Africa K Hutchings --- Anchor Environmental Consultants, South Africa SE Kerwath --- Department of Biological Sciences, South AfricaThe southern mullet Chelon richardsonii (Mugilidae) is the main target species of the inshore net fishery (gillnet and beach-seine) on the west coast of South Africa. The stock has displayed symptoms of overfishing, with a 28% reduction in the standardised... -
Local ecological knowledge demonstrates shifting baselines and the large-scale decline of sawfishes (Pristidae) in Tanzania
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: G Braulik --- University of St Andrews, United Kingdom M Kasuga --- Wildlife Conservation Society Tanzania Program, Tanzania G Majubwa --- Ambakofi, TanzaniaSawfishes are coastally distributed rays that grow to very large sizes. All five species are assessed as Endangered or Critically Endangered as a result of population declines caused mainly by entanglements in fishing gear and by habitat degradation. Three species...