Survival of pigmented freshwater zooplankton, exposed to artificial ultraviolet radiation and two levels of dissolved organic carbon

• Autorzy: Ríos P.
• Języki publikacji: EN

Abstrakty

EN

The increase in penetration of ultraviolet radiation has been reported currently over southern South America. It would affect the photoprotective responses in biotic elements of freshwater ecosystems. An experiment was designed using pigmented adult individuals of the species Daphnia dadayana (Paggi 1999), Boeckella antiqua (Menu-Marque & Balseiro 2000), and Parabroteas sarsi (Mrázek 1901), characteristic for shallow fishless ponds from South American plaints (located between 41 and 53° S latitude). The artificial ultraviolet radiation was involved in the experiment, with two levels of dissolved organic carbon (DOC), which would exert a protective effect against ultraviolet radiatiion. The results of this experiment showed that under conditions of low DOC concentrations, D. dadayana recorded a higher mortality, while under low DOC concenttrations, B. antiqua and P. sarsi were not affected by ultraviolet radiation. Daphnids would be less tolerant to the exposure to ultraviolet radiation than pigmented calanoid copepods.

Słowa kluczowe

EN

calanoids; daphnids; dissolved organic carbon; ultraviolet radiation; zooplankton

• Wydawca: Museum and Institute of Zoology, Polish Academy of Sciences
• Czasopismo: Polish Journal of Ecology
• Rocznik: 2005
• Tom: Vol. 53, nr 1
• Strony: 113--116
• Opis fizyczny: Bibliogr. 15 poz., tab.

Twórcy

autor

Ríos P.

• Cathholic University of Temuco, Biological and Chemical Sciences Department, Casilla (PO-BOX): 15-D, Temuco, Chile

Bibliografia

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