Oorlewing van die skerpioen Opistophthalmus pugnax (Scorpionidae) ná blootstelling aan ’n letale dosis SO2-gas
Suid-Afrikaanse Tydskrif vir Natuurwetenskap en Tegnologie/South African Journal of Science and Technology
| Field | Value | |
| Title | Oorlewing van die skerpioen Opistophthalmus pugnax (Scorpionidae) ná blootstelling aan ’n letale dosis SO2-gas Survival of the scorpion Opistophthalmus pugnax (Scorpionidae) after exposure to a lethal dosage SO2 gas. | |
| Creator | van Aardt, Willie J. | |
| Description | Skerpioene is bekend vir hul aanpasbaarheid by toestande in ’n droë habitat, min voedsel en radioaktiewe bestraling. Niks is bekend oor hul aanpasbaarheid by skadelike gasse nie. Resultate van hierdie eksperiment by Opistophthalmus pugnax bewys dat hulle ’n hoë dosis van 1000 dele per miljoen SO2 kan oorleef wat nie die geval is by die mens nie. Byvoorbeeld, die suurstofverbruikskoers neem eerder toe van 4.16 µmol/g-1 uur-1 na 7.69 µmol/g-1uur-1, een uur ná blootstelling aan SO2. Veertig minute na blootstelling was die ṀO2 steeds bykans twee keer hoër in vergelyking met die ṀO2 aan die begin. Hierdie bevinding moet deur verdere eksperimente nagevors word, veral wat die rol van spirakulumsluiting speel by blootstelling aan SO2. Scorpions are well known for their ability to adapt to dry habitats, scarcity of food and radioactive radiation. Nothing is known about their response to toxic gases. Results from this experiment showed that a high dose of 1000 parts per million SO2 was not lethal for Opistophthalmus pugnax; compare this to humans who cannot tolerate and survive high SO2 levels. In fact, the oxygen production rate increased from 4.16 µmol/g-1hour-1 to 7.69 µmol/g-1hour-1 after exposure of one hour to SO2. Forty minutes after exposure, ṀO2 was still nearly twice as high compared with the ṀO2 value at the beginning. Further experiments are suggested to solve the problem of possible spiracle occlusion caused by SO2. | |
| Publisher | AOSIS | |
| Date | 2013-06-10 | |
| Identifier | 10.4102/satnt.v32i1.390 | |
| Source | Suid-Afrikaanse Tydskrif vir Natuurwetenskap en Tegnologie; Vol 32, No 1 (2013); 3 bladsye Suid-Afrikaanse Tydskrif vir Natuurwetenskap en Tegnologie; Vol 32, No 1 (2013); 3 bladsye 2222-4173 0254-3486 | |
| Language | eng | |
| Relation |
The following web links (URLs) may trigger a file download or direct you to an alternative webpage to gain access to a publication file format of the published article:
https://journals.satnt.aosis.co.za/index.php/satnt/article/view/390/732
https://journals.satnt.aosis.co.za/index.php/satnt/article/view/390/733
https://journals.satnt.aosis.co.za/index.php/satnt/article/view/390/734
https://journals.satnt.aosis.co.za/index.php/satnt/article/view/390/730
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