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Louisiana crayfish (Procambarus clarkii) (Crustacea: Cambaridae) in Kenyan ponds: non-target effects of a potential biological control agent for schistosomiasis
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: DavidM Lodge SadieK Rosenthal KennethM Mavuti Wairimu Muohi Philip Ochieng SamanthaS Stevens BenjaminN Mungai GeraldM MkojiThe Louisiana crayfish (Procambarus clarkii) has been proposed as a biological control agent for the intermediate snail hosts (Bulinus and Biomphalaria spp.) of human schistosomes (Schistosoma haematobium and S. mansoni) in Kenya. Using laboratory and field experiments, we examined the... -
Translocation of marbled African lungfish, Protopterus aethiopicus (Telostei: Protopteridae), and its fishery in Lake Baringo, Kenya
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: ChrisestomM Mlewa JohnM GreenThe translocation of the marbled African lungfish Protopterus aethiopicus into Lake Baringo created a new fishery for the local community, who capture them primarily in a bottom-set long line fishery. Its introduction, development and current fishery status in the lake... -
Alien and invasive fresh water Gastropoda in South Africa
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: CC Appleton --- , South AfricaTen species of freshwater gastropod have been introduced into South Africa, mostly through the aquarium trade. Two of these, Lymnaea columella (Lymnaeidae) and Physa acuta (Physidae), have been invasive in river systems across the country for many years, probably since... -
Molecular evidence for three separate cryptic introductions of the red seaweed Asparagopsis (Bonnemaisoniales, Rhodophyta) in South Africa
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: JJ Bolton --- Botany Department and Marine Research Institute, South Africa N Andreakis --- , Australia RJ Anderson --- Botany Department and Marine Research Institute, South AfricaThe red seaweed genus Asparagopsis Montagne (Bonnemaisoniales) contains two widely introduced species that are considered notorious seaweed invaders worldwide, Asparagopsis armata and A. taxiformis, both characterised by heteromorphic, diplo-haplontic life histories. To uncover cryptic introductions of Asparagopsis along the South... -
Western pea crabs Pinnixa occidentalis Rathbun 1894 (Brachyura: Thoracotremata: Pinnotheroidea) invade Saldanha Bay, South Africa
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: BM Clark --- Zoology Department, South Africa CL Griffiths --- Centre for Invasion Biology and Zoology Department, South AfricaThe arrival and spread of the introduced western pea crab Pinnixa occidentalis Rathbun 1894 in South Africa is documented. The crab originates from the Pacific coast of North America and was first recorded in Saldanha Bay in 2004, although its... -
Myosotella myosotis (Mollusca: Ellobiidae) — an overlooked, but well-established introduced species in South Africa
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: DG Herbert --- , South AfricaMyosotella myosotis is shown to be a well-established alien species in South Africa. Discovered in Port Elizabeth more than 100 years ago, it was initially thought to be indigenous and was described under two different names, but subsequent taxonomic work... -
Restoring bare patches in the Nama-Karoo of South Africa
Item type: Journal Article • Journal: African Journal of Range & Forage Science • Authors: N Visser C Morris MB Hardy JC BothaOften veld degrades to a point beyond which vegetation cover, plant density and species composition do not recover despite the removal of the grazing impact. In such cases restoration interventions become necessary to assist with the re-establishment of vegetation. The... -
First record and redescription of the introduced sea anemone Sagartia ornata (Holdsworth, 1855) (Cnidaria: Actiniaria: Sagartiidae) from South Africa
Item type: Journal Article • Journal: African Zoology • Authors: F.H. Acuña --- Departamento de Ciencias Marinas, Facultad de Ciencias Exactas y Naturales, Argentina A.C. Excoffon --- Departamento de Ciencias Marinas, Facultad de Ciencias Exactas y Naturales, Argentina C.L. Griffiths --- Marine Biology Research Institute, University of Cape Town,, South AfricaThe brooding sea anemone Sagartia ornata is reported from South Africa for the first time and is redescribed. The species is abundant intertidally in Langebaan Lagoon, where it attaches to stones shal lowly buried in sediment. It is probably a... -
Additions to the barnacle (Crustacea: Cirripedia) fauna of South Africa
Item type: Journal Article • Journal: African Zoology • Authors: Aiden Biccard --- Centre for Invasion Biology and Department of Biological Sciences, South Africa Charles L Griffiths --- Centre for Invasion Biology and Department of Biological Sciences, South AfricaThe purpose of this paper is to document recent additions to the South African barnacle (Cirripedia) fauna. New species records were obtained by examining accumulated collections of unidentified material in the Iziko South African Museum, as well as via material... -
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... -
DNA barcoding of South Africa’s ornamental freshwater fish – are the names reliable?
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: KA van der Walt --- Department of Ichthyology and Fisheries Science, South Africa T Mäkinen --- South African Institute for Aquatic Biodiversity, South Africa ER Swartz --- South African Institute for Aquatic Biodiversity, South Africa OLF Weyl --- South African Institute for Aquatic Biodiversity, South AfricaTrade in freshwater ornamental fish in South Africa is currently regulated by a ‘blacklist’ to prevent potentially invasive taxa from establishing in the country. Because its effective implementation requires accurate identification, the aim of the present study was to test... -
Invasion status of Florida bass Micropterus floridanus (Lesueur, 1822) in South Africa
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: OLF Weyl --- DST/NRF Research Chair in Inland Fisheries and Freshwater Ecology, South Africa MK Schirrmann --- South African Institute for Aquatic Biodiversity (SAIAB), South Africa JS Hargrove --- Wildlife Ecology and Conservation Department, USA T Bodill --- South African Institute for Aquatic Biodiversity (SAIAB), South Africa ER Swartz --- South African Institute for Aquatic Biodiversity (SAIAB), South AfricaLargemouth bass Micropterus salmoides are a popular North American angling species that was introduced into South Africa in 1928. To enhance the largemouth bass fisheries, Florida bass Micropterus floridanus were introduced into KwaZulu Natal, South Africa, in 1980. Knowledge on... -
Whole-tree sap flow responses to soil water and weather variables for Pinus radiata and three indigenous species in a southern afrotemperate forest region
Item type: Journal Article • Journal: Southern Forests: a Journal of Forest Science • Authors: Tatenda Mapeto --- School of Natural Resources Management, Nelson Mandela University, George Campus, South Africa Josua Louw --- School of Natural Resources Management, Nelson Mandela University, George Campus, South Africa Mark Gush --- Council for Scientific and Industrial Research, South Africa Jeanette Pauw --- School of Natural Resources Management, Nelson Mandela University, George Campus, South AfricaIn a water-scarce country such as South Africa, timber and fibre production often stands in conflict with catchment water yields. The optimal provision of both is sought. Forest hydrological experiments improve our understanding of the soil–plant–atmosphere continuum and facilitate the... -
Debarking damage by alien Pallas’s squirrel, Callosciurus erythraeus, in Argentina and its effects on tree growth
Item type: Journal Article • Journal: Southern Forests: a Journal of Forest Science • Authors: Paula A Pedreira --- , Argentina Eduardo A Penon --- , Argentina Mariela Borgnia --- , ArgentinaIntroduced squirrels threaten forest ecosystems by debarking, resulting in economic losses to the timber industry and additional damage mitigation and pest control costs. The Pallas’s squirrel, also called the red-bellied squirrel. (Callosciurus erythraeus), originally from Asia, is the first squirrel... -
Spatial and temporal diversity of non-native biofouling species associated with marinas in two Angolan bays
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: LB Pestana --- , Brazil GM Dias --- , Brazil AC Marques --- , BrazilArtificial structures in coastal areas provide substrates which facilitate the spread of non-native species. Published records of introduced benthic species in the coastal waters of Angola are scarce, and so far these have numbered 29 non-native species and seven cryptogenic... -
The status of arboreta in South Africa and the taxa they contain
Item type: Journal Article • Journal: Southern Forests: a Journal of Forest Science • Authors: MD Cheek --- , South Africa JRU Wilson --- , South Africa DM Richardson --- , South Africa Ş Procheş --- , South AfricaCollections of living trees (hereafter arboreta) are important for conservation, research on species selection for forestry, and as sentinel sites for monitoring pests and diseases. Arboreta can also be the source of propagules for biological invasions. Between 2012 and 2022... -
First record of the pandemic fungus Batrachochytrium dendrobatidis in wild amphibians of the Mauritius Island
Item type: Journal Article • Journal: African Journal of Herpetology • Authors: Albert Martínez-Silvestre --- , Spain Owen Griffiths --- La Vanille Nature Park, Ile Maurice Gilbert Moutia --- La Vanille Nature Park, Ile Maurice Barbora Thumsová --- Asociación Herpetológica Española (AHE), Spain Jaime Bosch --- IMIB-Research Unit of Biodiversity (University of Oviedo, CSIC, Principality of Asturias), SpainMauritius hosts two established non-native amphibian species: the Mascarene Grass Frog (Ptychadena mascareniensis) and the Guttural Toad (Sclerophrys gutturalis). In this study, we screened individuals of both species for the presence of Batrachochytrium dendrobatidis (Bd), Batrachochytrium salamandrivorans (Bsal), and Ranavirus...