Relationship between oil pollution and psammolittoral meiofauna density of two South African beaches |
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| Authors: | AH Fricke HF-KO Hennig MJ Orren |
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| Institution: | National Research Institute for Oceanology, c/o Oceanography Department, University of Cape Town, Rondebosch, South Africa |
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| Abstract: | The effects of stranded oil from a tanker collision off the South African coast on the meiofauna ratio and density have been monitored over a period of 1 year on two sandy beaches. The perturbation of two beaches was judged against reference beach meiofauna density behaviour. In the undisturbed beach, oil deposited in sediment depressed harpacticoid copepod numbers, while numbers of nematodes stayed similar to those of the reference levels. Removal of surface sand in the mechanically disturbed beach had a greater influence on the density of animals than oil. Both beaches showed recovery after six months, but evidence of pollution by oil of unknown origin was found. |
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