8   Artículos

 
en línea
Robert Mazur, Wu Shubiao, Krzysztof Szoszkiewicz, Dawid Bedla, Agata Nowak     Pág. 1 - 15
The paper presents a study leading to a new acute toxicity test on embryonic and juvenile organisms of the great pond snail (Lymnaea stagnalis Linnaeus). Sulfuric acid, nitric acid, and ammonium hydroxide were used as waterborne toxicants in laboratory e... ver más
Revista: Water    Formato: Electrónico

 
en línea
Kenné de Kock, Corrie Wolmarans     Pág. 220 - 236
The presence of Ancylidae in South Africa was established as early as 1848 but the ?rst comprehensive study on this family was reported in 1923. This author came to the conclusion that extensive work still had to be done before it could be declare... ver más
Revista: South African Journal of Science and Technology    Formato: Electrónico

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