Browsing by Subject "Mercury"
Now showing items 1-10 of 10
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Biotransport of metallic trace elements from marine to terrestrial ecosystems by seabirds
(Wiley, 2019)Physical systems, such as currents and winds, have traditionally been considered responsible for transporting contaminants. Although evidence is mounting that animals play a role in this process through their movements, ... -
Concentrations and compositions of metallic elements in commercially important marine species
(North-West University (South Africa), 2020)Metals have been in our environment since the genesis of the world and are ubiquitous in all environments. We as humans mine, utilize, and release these metals from the environment to a level that may affect chronically ... -
Concentrations and relative compositions of metallic elements differ between predatory squid and filter-feeding sardine from the Indian and South Atlantic oceans
(Elsevier, 2020)Although metallic elements occur naturally, they can occur or accumulate in organisms at levels toxic to the organism and/or their consumers. Concentrations of twenty-nine metallic elements in muscle tissue from sardine ... -
Contamination status and accumulation characteristics of heavy metals and arsenic in five seabird species from the central Bering Sea
(Japanese Society of Veterinary Science, 2017)Seabirds are marine top predators and accumulate high levels of metals and metalloids in their tissues. Contamination by metals in the highly productive offshore region has become a matter of public concern. It is home ... -
Emissions of mercury from the power sector in South Africa
(North-West University (South Africa), 2018)Mercury (Hg) is an extremely important element as it is ubiquitous, toxic, and considered a global pollutant. The atmospherically significant forms of Hg include inorganic gaseous elemental (Hg0), inorganic gaseous reactive ... -
The flip-or-flop boutique: marine debris on the shores of St Brandon's rock, an isolated tropical atoll in the Indian Ocean
(Elsevier, 2016)Isolated coral atolls are not immune from marine debris accumulation. We identified Southeast Asia, the Indian sub-continent, and the countries on the Arabian Sea as most probable source areas of 50 000 items on the shores ... -
Illegal mining's effect on the sustainability of a South-African Gold mine
(North-West University (South Africa), 2019)Gold mining is one of the cornerstones of the South-African economy, to an extent that the South-African gold mining industry was directly responsible for the establishment of the Johannesburg Stock Exchange (JSE) in 1887. ... -
Metallic elements in Nile Crocodile eggs from the Kruger National Park, South Africa
(Elsevier, 2018)The Nile Crocodile is the largest predator on the African continent. Recent mass mortalities in the Kruger National Park (KNP) raised concerns about possible influence of pollution. We analysed eggs and their eggshells ... -
Organochlorine pesticide and mercury bioaccumulation in shark species from the South African coastline
(North-West University (South Africa), 2023)Organochlorine pesticide (OCP), selenium (Se) and mercury (Hg) contamination of South Africa’s marine waters potentially has deleterious effects on sharks, rays, and skates. These contaminants are released into the marine ... -
The role of the Usuthu River as refuge for the aquatic biodiversity of the lower Phongolo system
(North-West University (South Africa), 2023)Freshwater riverine floodplain systems are one of the most threatened ecosystems. These riverine floodplain systems are also the most productive and biodiverse freshwater systems in the world. Impacts that threaten these ...
