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Quantifying commercial catch and effort of monkfish Lophius vomerinus and L. vaillanti off Namibia
Item type: Journal Article • Journal: South African Journal of Marine Science • Authors: L. Maartens A. J. BoothAbundance and exploitation patterns of monkfish Lophius vomerinus and L. vaillanti were investigated for use as inputs into a stock assessment framework to be used for management of the Namibian monkfish resource. Total numbers of monkfish caught per size-class were... -
Catch and effort of the shore and skiboat linefisheries along the South African Eastern Cape Coast
Item type: Journal Article • Journal: South African Journal of Marine Science • Authors: S. L. Brouwer C. D. BuxtonAn assessment of catch and effort in the Eastern Cape shore and skiboat linefisheries was undertaken between 1994 and 1996 by means of roving creel and access point surveys. Catch-and-effort data were obtained from direct observation of 3 273 shore-fishers,... -
An assessment of the recreational fishery in the St Lucia estuarine system, KwaZulu-Natal, South Africa
Item type: Journal Article • Journal: South African Journal of Marine Science • Authors: B. Q. Mann N. C. James L. E. BeckleySt Lucia is one of the largest estuarine systems in Africa, and attracts thousands of anglers each year. Catchcard data from the National Marine Linefish System for the years 1986–1999 were analysed to determine catch composition, catch per unit effort... -
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... -
GLM-based standardization of the catch per unit effort series for South African west coast hake, focusing on adjustments for targeting other species
Item type: Journal Article • Journal: South African Journal of Marine Science • Authors: J. P. Glazer D. S. ButterworthCatch per unit effort (cpue) data for the South African west coast Cape hakes Merluccius capensis and M. paradoxus were standardized by applying the Generalized Linear Modelling (GLM) technique. The resulting standardized series indicated that resource abundance declined at a... -
Assessment of the recreational linefishery in selected Eastern Cape estuaries: trends in catches and effort
Item type: Journal Article • Journal: South African Journal of Marine Science • Authors: P. Pradervand D. BairdBoat-based creel surveys were used to collect catch and effort data on the shore- and boat-based linefisheries of the Kromme, Gamtoos, Swartkops, Sundays, Bushmans, Kariega, Kowie and Great Fish estuaries in the Eastern Cape, South Africa, from January 1996 to... -
CATCH AND EFFORT IN THE LAKE KARIBA SARDINE FISHERY
Item type: Journal Article • Journal: Journal of the Limnological Society of Southern Africa • Authors: B.E. Marshall --- Department of Biological Sciences, ZimbabweThe fishery for Limnothrissa on Lake Kariba, which produced nearly 25 000 t in 1985, is backed by a comprehensive statistical system which increases the chance of using catch and effort models to manage it. The way in which effort... -
A preliminary quantitative assessment of gillnet fishing in subtropical Lake Tzaneen, Northern Province, South Africa
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: NN Nicolaai --- Department of Zoology and Biology, South Africa A Jooste --- Department of Zoology and Biology, South AfricaBetween January 1998 and January 1999 a quantitative investigation was done on the fish populations of Lake Tzaneen, Northern Province, South Africa. Two graded series of multi-filament gillnets were set overnight every six weeks capturing 14 species of fish. Of... -
An Assessment of the Recreational and Commercial Skiboat Fishery in the Transkei
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: S. T. Fennessy A. M. McDonald B. Q. Mann B. I. EverettA survey of the recreational and commercial skiboat linefishery in the Transkei was conducted from March 1997 to April 1999. Effort by commercial skiboats was substantially higher than by recreational skiboats, and catch rates on commercial boats were much higher... -
Assessment of the Linefishery in Two Urban Estuarine Systems In Kwazulu-natal, South Africa
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: P. Pradervand L. E. Beckley B. Q. Mann P. V. RadebeThe recreational linefisheries in Durban Harbour and the Mgeni Estuary were surveyed using roving creel and access-point surveys during the period January–December 2000. In total, 3 351 shore-anglers and 652 boat-anglers were checked for catch-and-effort information, and 432 shore-anglers were... -
Simulations of fishing effects on the southern Benguela fish community using an individual-based model: learning from a comparison with ECOSIM
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: Y-J. Shin L. J. Shannon P. M. CuryBy applying an individual-based model (OSMOSE) to the southern Benguela ecosystem, a multispecies analysis is proposed, complementary to that provided by the application of ECOPATH/ECOSIM models. To reconstruct marine foodwebs, OSMOSE is based on the hypothesis that predation is a... -
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... -
A characterisation of the paddle-ski fishery in KwaZulu-Natal, South Africa
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: BQ Mann --- , South Africa P Pradervand --- , South Africa JQ Maggs --- , South Africa S Wintner --- , South AfricaThe KwaZulu-Natal (KZN) paddle-ski fishery in South Africa consists mainly of light-weight fishing kayaks operated by a single fisher in the marine nearshore environment. The social, economic, management and fisheries parameters of this sector were investigated during the period December... -
Long-term trends in the recreational shore-fishery for elf Pomatomus saltatrix (Pomatomidae) along the KwaZulu-Natal coast, South Africa
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: JQ Maggs --- , South Africa BQ Mann --- , South Africa RP van der Elst --- , South AfricaElf Pomatomus saltatrix account for between 28% and 80% of the annually recorded recreational shore-angling catch in KwaZulu-Natal, South Africa, and have been subjected to various management regimes over the past 33 years. Management of the elf fishery was amended... -
Long-term catch and effort trends in Eastern Cape Angling Week competitions
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: ML Dicken --- Department of Ichthyology and Fisheries Science, South Africa MJ Smale --- Department of Zoology, South Africa AJ Booth --- Department of Ichthyology and Fisheries Science, South AfricaCatches from Angling Week competitions between 1999 and 2010 were analysed to examine changes in catch and effort. Over the course of the study period there was a marked drop in the number of competing anglers and a significant reduction... -
An assessment of participation, catch and effort in the KwaZulu-Natal shore-based marine linefishery, with comments on management effectiveness
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: SW Dunlop --- , South Africa BQ Mann --- , South AfricaThe primary purpose of this study was to evaluate the effectiveness of current management of the KwaZulu-Natal (KZN) shore-based marine linefishery. Methods used included a stratified-random creel survey and an associated questionnaire survey. The study was undertaken between February 2009... -
An assessment of participation, catch and effort in the offshore boat-based linefishery in KwaZulu-Natal, South Africa
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: SW Dunlop --- , South Africa BQ Mann --- , South AfricaThis study evaluates trends in participation, catch and effort in the KwaZulu-Natal offshore boat-based linefishery. Methods used included a random access-point survey and an associated questionnaire survey. The study was undertaken between February 2009 and April 2010. Total participation in... -
The trouble with estuarine fisheries in temperate South Africa, illustrated by a case study on the Sundays Estuary
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: PD Cowley --- South African Institute for Aquatic Biodiversity, South Africa A-R Childs --- South African Institute for Aquatic Biodiversity, South Africa RH Bennett --- South African Institute for Aquatic Biodiversity, South AfricaThis study provides empirical data on the exploitation of fishery resources on the Sundays Estuary on the south-east coast of South Africa. Total annual effort was estimated at 63 785 angler-hours, which accounted for an annual yield of 16 214... -
Patterns in abundance, population structure and biology of knife prawn Haliporoides triarthrus on deep-water trawl grounds off eastern South Africa
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: J Robey --- Oceanographic Research Institute, South Africa ST Fennessy --- Oceanographic Research Institute, South Africa BI Everett --- Oceanographic Research Institute, South Africa J Santos --- Norwegian College of Fisheries Science, Norway JC Groeneveld --- Oceanographic Research Institute, South AfricaThe deep-water trawl fishery along the KwaZulu-Natal coast of South Africa targets several crustacean species, with the knife (or pink) prawn Haliporoides triarthrus contributing most of the catch. Logbook data of fishing effort and catch between 1988 and 2010 were... -
Maturity, age and growth of Oreochromis karongae (Teleostei: Cichlidae) in Lakes Malawi and Malombe, Malawi
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: Fanuel Kapute Emmanuel Kaunda Moses Banda Sinshuke MoriokaSize-at-50% maturity, age and growth, of Oreochromis (Nyasalapia) karongae ('chambo') in Lakes Malawi and Malombe were studied. Oreochromis karongae, a major component of the chambo species flock, attained 50% maturity at 225 mm TL in Lake Malawi and at 203... -
Few fish but many fishers: a case study of shore-based recreational angling in a major South African estuarine port
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: LE Beckley ST Fennessy BI EverettRichards Bay is a subtropical estuary that has been extensively dredged to accommodate one of Africa's largest commercial ports. In the non-commercial areas of the harbour, shore-based angling is a popular recreational activity, but little is known about the anglers... -
The effects of ageing biases on stock assessment and management advice: a case study on Namibian horse mackerel
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: MR Wilhelm MD Durholtz CH KirchnerWe explore the influence of age-estimation errors on the results of the age-structured production model (ASPM) used for horse mackerel stock assessment in Namibia for the period 1961–2003. The analysis considered age data from eight readers collected during an otolith-reading... -
The artisanal fishery for East Coast rock lobsters Panulirus homarus along the Wild Coast, South Africa
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: E Steyn PJ Fielding MH SchleyerEast coast rock lobsters Panulirus homarus are collected by the indigenous people of the Wild Coast, in the Eastern Cape, South Africa, and are sold to coastal hotels and holidaymakers. The South African government has proposed a small-scale commercial fishery... -
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... -
Selected fishery and population parameters of eight shore-angling species in the Tsitsikamma National Park no-take marine reserve
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: A Götz PD Cowley H WinkerAn eight-year research angling dataset collected between February 1998 and December 2005 in the Tsitsikamma National Park marine protected area (MPA), along the south-eastern Cape coast of South Africa, was examined to provide estimates of important fishery and population parameters... -
Optimisation of underwater visual census and controlled angling methods for monitoring subtidal temperate reef fish communities
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: RH Bennett --- Department of Ichthyology and Fisheries Science, South Africa A Götz --- , South Africa WHH Sauer --- Department of Ichthyology and Fisheries Science, South Africa PD Cowley --- , South Africa RM Palmer --- , South AfricaStandardised sampling protocols for monitoring fish stocks are essential to assess changes in stock status and provide a means to evaluate the effectiveness of fisheries management measures, such as marine protected areas (MPAs). This study aimed to optimise two standard... -
The psychometric properties of the Recovery Experiences Questionnaire of employees in a higher education institution
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Karina Mostert --- WorkWell: Research Unit for Economic and Management Sciences, South Africa Crizelle Els --- WorkWell: Research Unit for Economic and Management Sciences, South AfricaThe objective of this study was to investigate the factorial validity and reliability of scores from the Recovery Experience Questionnaire (REQ) in a higher education institution. As part of the measure validation, the relationships of the four recovery dimensions (psychological... -
An analysis of the recreational shore fishery in the Goukamma Marine Protected Area
Item type: Journal Article • Journal: African Zoology • Authors: P. Pradervand --- Oceanographic Research Institute, South Africa R. Hiseman --- Western Cape Nature Conservation Board, South AfricaTen years (1993–2002) of shore fishing catch and effort data collected during routine patrols in the Goukamma Marine Protected Area in theWestern Cape Province were analysed. Of a total of 35 species recorded, the most common were backtail, Diplodus sargus... -
The impact of high temperatures on foraging behaviour and body condition in the Western Australian Magpie Cracticus tibicen dorsalis
Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: Emily K Edwards --- School of Animal Biology, Australia Nicola J Mitchell --- School of Animal Biology, Australia Amanda R Ridley --- Centre for Evolutionary Biology, School of Animal Biology, AustraliaHigh temperatures can pose significant thermoregulation challenges for endotherms, and determining how individual species respond to high temperatures will be important for predicting the impact of global warming on wild populations. Animals can adjust their behaviour or physiology to cope... -
Dissemination effort, innovation attributes, and variations in innovation dissemination rate
Item type: Journal Article • Journal: African Journal of Science, Technology, Innovation and Development • Authors: Mawuena Aggey --- Process Technology and Innovation Research, Ghana Nana Kwamina Tekyi Ghartey --- Centre for Development Studies, Ghana Charles Kweku Brown --- Centre for Development Studies, GhanaInnovation-decision type, communication channels, social system, and change agents’ promotion effort influence innovation adoption, but 49–87% of variance in adoption rates is explained by perceived innovation attributes (Rogers 1995). Relationships between adoption rates and these variables are much researched but... -
The recreational fishery in the Kosi estuarine lake system, South Africa
Item type: Journal Article • Journal: African Zoology • Authors: N.C. James --- Oceanographic Research Institute, South Africa L.E. Beckley --- Oceanographic Research Institute, South Africa B.Q. Mann --- Oceanographic Research Institute, South Africa R. Kyle --- KwaZulu Natal Nature Conservation Service, South AfricaThe Kosi estuarine system, located in northern KwaZulu-Natal, is becoming an increasingly popular angling venue. Recreational catch card data from the National Marine Linefish System for the years 1986 to 1999 were analysed to determine total catch, catch composition, catch... -
Assessment of catches in shore angling competitions from the border region of the Eastern Cape, South Africa
Item type: Journal Article • Journal: African Zoology • Authors: P. Pradervand --- Oceanographic Research Institute, South Africa R.D. Govender --- Oceanographic Research Institute, South AfricaSeventeen years (1982 1998) of competitive shore angling catch and effort data from the Border region (Great Fish RiverKei River) of the Eastern Cape of South Africa were analysed. Of a total of 34 species recorded, the most commonly caught... -
Escapism motive for sport consumption as a predictor of meaning in life
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Frederick W. Stander --- Optentia Research Focus Area, South AfricaThe objective of this study was to examine whether spectator escapism motive for sport consumption could predict meaning in life, and to explore the role of psychological ownership in this relationship. A sample of 806 football spectators (African = 85%,... -
Monitoring the recovery of a previously exploited surf-zone fish community in the St Lucia Marine Reserve, South Africa, using a no-take sanctuary area as a benchmark
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: BQ Mann --- Oceanographic Research Institute, South Africa H Winker --- South African National Biodiversity Institute, South Africa JQ Maggs --- Oceanographic Research Institute, South Africa SN Porter --- Oceanographic Research Institute, South AfricaLimiting accessibility to a fishing area can reduce fishing effort effectively and may therefore promote local recovery of depleted stocks. In January 2002, beach driving was banned in South Africa, thereby reducing angler access to large areas of the coastline,... -
When plenty is not enough: an assessment of the white stumpnose (Rhabdosargus globiceps) fishery of Saldanha Bay, South Africa
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: D Parker --- Fisheries Management Branch, Department of Agriculture, South Africa SE Kerwath --- Fisheries Management Branch, Department of Agriculture, South Africa TF Næsje --- Norwegian Institute for Nature Research (NINA), Norway CJ Arendse --- South African National Parks, Rondevlei Scientific Services (Garden Route National Park), South Africa FJ Keulder-Stenevik --- Sars Centre for Marine Molecular Biology, Norway K Hutchings --- Anchor Environmental Consultants, South Africa BM Clark --- Anchor Environmental Consultants, South Africa H Winker --- Fisheries Management Branch, Department of Agriculture, South Africa PD Cowley --- South African Institute for Aquatic Biodiversity (SAIAB), South Africa CG Attwood --- Department of Biological Sciences, South AfricaWhite stumpnose Rhabdosargus globiceps is the main target of the linefishery in Saldanha Bay. Increased fishing pressure over the last three decades, particularly by the recreational sector, has led to concerns regarding sustainability of the local white stumpnose stock. The... -
Catch distribution and size structure of Nile tilapia (Oreochromis niloticus) in Lake Tana, Ethiopia: implications for fisheries management
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: DA Tefera --- Bahir Dar University College of Agriculture and Environmental Sciences, Ethiopia MM Zerihun --- Fisheries, Wetlands and Wildlife Management, Ethiopia YTG Wolde-Meskel --- Hawassa University College of Agriculture, EthiopiaNile tilapia (Oreochromis niloticus) is the most important species for consumption and economic purposes in Lake Tana, yet, tilapia stocks have declined drastically over the past decades because of anthropogenic impacts. Thus, effective conservation management is required urgently. The aim... -
Stock assessment of Nile tilapia Oreochromis niloticus (Linnaeus 1758) in Lake Tana, Ethiopia
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: A Degsera --- , Ethiopia M Minwyelet --- , Ethiopia TG Yosef --- , EthiopiaNile tilapia Oreochromis niloticus is a commercially important fish species in the Lake Tana fishery and contributes to 65% of the total annual catch. This study estimated the maximum sustainable yield (MSY) and effort at maximum sustainable yield (fMSY) for... -
Movement patterns and catch trends of the diamond ray Gymnura natalensis (Dasyatidae) in South African waters
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: R Daly --- , South Africa GL Jordaan --- , South Africa D Parker --- , South Africa G Cliff --- , South Africa N Nkabi --- , South Africa R Kyle --- , South Africa ST Fennessy --- , South Africa BQ Mann --- , South AfricaThe diamond ray Gymnura natalensis is endemic to southern Africa where its preference for shallow coastal habitats makes it vulnerable to recreational shore-based angling. Although it makes up approximately 1% of the shore-based tag numbers, little is known about its... -
Evidence for overfishing of tigerfish Hydrocynus vittatus (Castelnau 1861) in the Kavango River, Namibia
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: FJ Jacobs --- , Namibia TF Naesje --- , Norway EM Ulvan --- , Norway CJ Hay --- , Namibia FH Khaebeb --- , Namibia OLF Weyl --- , South AfricaThe fishery for the African tigerfish Hydrocynus vittatus in northern Namibia makes a substantial contribution to surrounding food security and stimulates the local economy through subsistence and recreational fishing. However, local fishers suggest that catch rates of H. vittatus have... -
The impact of sustainability at the workplace on the employee’s motivation and satisfaction
Item type: Journal Article • Journal: Research in Hospitality Management • Authors: Gabriel Tschelisnig --- NHL Stenden University of Applied Sciences, The Netherlands Rodney Westerlaken --- NHL Stenden University of Applied Sciences, The NetherlandsThis article focuses on the impact of sustainable efforts at the workplace on employees’ motivation and satisfaction. The focus is on the hospitality industry, represented in this case study by the Novotel Amsterdam Schiphol Airport in the Netherlands. As sustainability... -
Factors affecting the adoption and usage of electronic tax system in Ethiopia in the case of Addis Ababa city large taxpayers
Item type: Journal Article • Journal: African Journal of Science, Technology, Innovation and Development • Authors: Mathewos Woldemariam Birru --- Wolaita Sodo University, EthiopiaThe aim of this research is to assess the adoption and usage of electronic tax system in the case of large taxpayers in Addis Ababa city through the implementation of unified theory of acceptance and use of technology (UTAUT) model... -
For the common good: Measuring residents' efforts to protect their community from drug- and sex-related harm
Item type: Journal Article • Journal: SAHARA-J: Journal of Social Aspects of HIV/AIDS • Authors: Pedro Mateu-Gelabert --- NDRI, Inc., USA Melissa Bolyard --- Emory University, USA Carey Maslow --- New York City Department of Health and Mental Hygiene, Milagros Sandoval --- NDRI, Inc., USA Peter Flom --- BrainScope, Samuel R Friedman --- NDRI, Inc., USAPeople in high-risk neighbourhoods try to protect their friends, neighbours, relatives and others from the social and physical risks associated with sex and drug use. This paper develops and validates a community-grounded questionnaire to measure such ‘intravention’ (health-directed efforts to... -
Population ecology of Psammobates oculifer in a semi-arid environment
Item type: Journal Article • Journal: African Journal of Herpetology • Authors: Toby Keswick --- , , South Africa Margaretha D. Hofmeyr --- , , South AfricaWe studied the ecology of Psammobates oculifer over 13 months near Kimberley, South Africa, to ascertain if the population's life history traits conform to chelonian patterns in arid environments. Capture rates were highest in spring and lowest in winter when... -
The use of dolphins at Melka Excelsior Dolphin and Wildlife Resort in Lovina, Bali, Indonesia: a study of visitor experiences and ethical implications through netnographic research
Item type: Journal Article • Journal: Research in Hospitality Management • Authors: Rodney Westerlaken --- NHL Stenden University of Applied Sciences, The NetherlandsThe closure of Melka Excelsior Dolphin and Wildlife Resort in Lovina, Bali, in Indonesia was prompted by the confiscation of its dolphins and mounting pressure from animal welfare advocates, marking a pivotal moment in the discourse surrounding the use of... -
Effect of rotational harvesting on the size composition of Cape rock oysters Striostrea margaritacea on the east coast of South Africa
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: E Steyn --- Oceanographic Research Institute, South Africa JC Groeneveld --- Oceanographic Research Institute, South Africa J Santos --- Norwegian College of Fishery Science, Uit – The Arctic University of Norway, NorwayA commercial fishery for the Cape rock oyster Striostrea margaritacea along the north coast of KwaZulu-Natal, South Africa (western Indian Ocean), follows a 4-year rotational cycle, with each harvest year followed by 3 fallow years across four harvest zones. We... -
Multiple circannual moult strategies: feather tract moult patterns for common birds of the central Fynbos region, South Africa
Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: Alan TK Lee --- University of KwaZulu-Natal, South AfricaWhen and where birds lose their feathers during the annual moult cycle is a fascinating subject, but there is little reported on patterns and strategies of moult for most African bird species. While there have been great advances in our... -
Biology and ecology of the African blackspot shark Carcharhinus humani on the east coast of South Africa
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: G Cliff --- KwaZulu-Natal Sharks Board, South Africa NG Booyens --- School of Life Sciences, University of KwaZulu-Natal, South Africa R Daly --- Oceanographic Research Institute (ORI), South Africa GL Jordaan --- Oceanographic Research Institute (ORI), South Africa N Nkabi --- KwaZulu-Natal Sharks Board, South Africa D Parker --- Commonwealth Scientific and Industrial Research Organization, Australia BQ Mann --- Oceanographic Research Institute (ORI), South AfricaThe African blackspot shark Carcharhinus humani (until now commonly known as Human’s whaler shark) is a small-sized requiem shark (family Carcharhinidae) found in tropical coastal waters of the western Indian Ocean as far south as Port St Johns on the... -
Per-recruit analysis and proposed sustainable harvest strategy for rednose labeo Labeo rosae and Mosambique tilapia Oreochromis mossambicus in Flag Boshielo Dam, Olifants River, South Africa
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: SM Marr --- University of Limpopo, South Africa HA Hlungwani --- University of Limpopo, South Africa OLF Weyl --- South African Institute for Aquatic Biodiversity (SAIAB), South Africa JR Sara --- University of Limpopo, South AfricaInland fisheries development in South Africa has been proposed to improve rural livelihoods and food security. However, inland fisheries are susceptible to collapse through overfishing. Therefore, establishing biological reference points for these fisheries is essential for long-term sustainability. Here, spawner-biomass-per-recruit... -
Socio-ecological change in bait fisheries for the common sandprawn Kraussillichirus kraussi in Durban Harbour, South Africa
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: D Chetty --- Oceanographic Research Institute (ORI), South Africa E Steyn --- Oceanographic Research Institute (ORI), South Africa JC Groeneveld --- Oceanographic Research Institute (ORI), South AfricaBait fishing for the common sandprawn Kraussillichirus kraussi in Durban Harbour, on the east coast of South Africa, has a history going back to the early 20th century and has been influenced by port development and political changes over time... -
Distribution and community structure of riverine fish in two east-flowing rivers in Kenya
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: Japhet Kaadzo Tembo --- Egerton University, Kenya Charles Maina Kihia --- Egerton University, Kenya Nzula Kivuva Kitaka --- Egerton University, Kenya Gordon O’Brien --- School of Biology and Environmental Sciences, University of Mpumalanga, South Africa Emmanuel Mbaru --- , Malaysia Catherine Kariuki --- Egerton University, KenyaThis study investigated the distribution, composition and habitat associations of freshwater eels in the Athi–Galana–Sabaki (Athi) and Ramisi Rivers using fortnightly fyke-net sampling conducted between April 2021 and March 2022. A total of 304 eels were recorded, with the Ramisi...
