Die subletale effekte van die organochloriede dieldrien en lindaan op groei en voortplanting van Eudrilus eugeniae en Eisenia fetida (Oligochaeta)
Suid-Afrikaanse Tydskrif vir Natuurwetenskap en Tegnologie/South African Journal of Science and Technology
| Field | Value | |
| Title | Die subletale effekte van die organochloriede dieldrien en lindaan op groei en voortplanting van Eudrilus eugeniae en Eisenia fetida (Oligochaeta) The sublethal effects of the organochlorines dieldrin and lindane on growth and reproduction of Eudrilus eugeniae and Eisenia fetida (Oligochaeta) | |
| Creator | Office, Editorial | |
| Description | Omgewingsvergiftiging deur verskillende chemiese stowwe het in belangrikheid toegeneem weens die toenemende gebruik van chemiese verbindings. Pogings word tans wêreldwyd aangewend om metodes te ontwikkel om die uitwerking van vreemde stowwe op die natuurlewe te bepaal. Indekse word reeds ontwikkel om die toksisiteit van besoedelingstowwe te voorspel. In ontwikkelde lande is standaardtoetse nou verpligtend alvorens chemiese verbindings bemark kan word. Experimental exposure of the earthworm species Eudrilus eugeniae to organochlorines showed that dieldrin causes damage to sperm ultrastructure when viewed electronmicroscopically. Worms containing concentrations of 7,27 mg/kg dieldrin and higher showed more than 10% sperm damage. Exposure of Eisenia fetida to sublethal concentrations of lindane did not result in sperm damage but demonstrated an increase in growth and reproductive activity. It is argued that quantification of sperm damage and correlation with pesticide concentration could provide a useful tool for evaluating environmental quality. Furthermore, the effects of sublethal concentrations of pesticides that manifest themselves in increased growth and reproductive activity could affect ecological balances. | |
| Publisher | AOSIS | |
| Date | 1994-07-09 | |
| Identifier | 10.4102/satnt.v13i1.577 | |
| Source | Suid-Afrikaanse Tydskrif vir Natuurwetenskap en Tegnologie; Vol 13, No 1 (1994); 21-24 Suid-Afrikaanse Tydskrif vir Natuurwetenskap en Tegnologie; Vol 13, No 1 (1994); 21-24 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/577/1034
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