盐度对一些非洲热带按蚊幼虫的影响。
Effects of salinity on the larvae of some Afrotropical anopheline mosquitoes.
作者信息
Coetzee M, Le Sueur D
机构信息
Department of Tropical Pathology, School of Pathology, South African Institute for Medical Research, Johannesburg.
出版信息
Med Vet Entomol. 1988 Oct;2(4):385-90. doi: 10.1111/j.1365-2915.1988.tb00212.x.
Laboratory experiments showed that the larvae of some freshwater-breeding Afrotropical anopheline species exhibit various degrees of tolerance to 25% sea-water. At 24 degrees C, survival rates from egg to fourth instar larva were significantly less in salt-water than in freshwater for four species: 39.5% versus 55.4% for Anopheles tenebrosus Dönitz, 31.9% versus 86.2% for An. mousinhoi De Meillon & Pereira, 3.5% versus 67.9% for An. pharoensis Theobald and 3.9% versus 41.9% for An. quadriannulatus (Theobald). Conversely, An. merus Dönitz showed a significantly better survival rate of 46.4% in 25% sea-water compared with 15.5% in freshwater. Simulated winter conditions did not significantly change these differential survival rates of An. merus. Effects of salinity on the anal papillae of third instar larvae are discussed.
实验室实验表明，一些在淡水中繁殖的非洲热带按蚊种类的幼虫对25%的海水表现出不同程度的耐受性。在24摄氏度下，对于四种按蚊而言，从卵到四龄幼虫阶段，咸水中的存活率显著低于淡水中的存活率：黑暗按蚊（Anopheles tenebrosus Dönitz）在咸水中为39.5%，在淡水中为55.4%；穆氏按蚊（An. mousinhoi De Meillon & Pereira）在咸水中为31.9%，在淡水中为86.2%；法老按蚊（An. pharoensis Theobald）在咸水中为3.5%，在淡水中为67.9%；四斑按蚊（An. quadriannulatus (Theobald)）在咸水中为3.9%，在淡水中为41.9%。相反，梅氏按蚊（An. merus Dönitz）在25%的海水中的存活率为46.4%，显著高于在淡水中的15.5%。模拟冬季条件并未显著改变梅氏按蚊的这些差异存活率。文中讨论了盐度对三龄幼虫肛乳突的影响。
Zotero 插件