Tranchida María C, Micieli María V, Maciá Arnaldo, García Juan J
Centro de Estudios Parasitológicos y de Vectores, CEPAVE, (CCT-La Plata-CONICET-UNLP), La Plata, Buenos Aires, Argentina.
Rev Biol Trop. 2009 Dec;57(4):1059-68. doi: 10.15517/rbt.v57i4.5446.
Copepods from La Plata, Argentina were investigated to characterize the local community of larvivorous copepods inhabiting mosquito breeding sites and to identify new predator species of the mosquitoes which occur in artificial containers, Aedes aegypti and Culex pipiens. Diversity of larvivorous cyclopoids was highest in permanent pools. Predation by sex and age, selectivity on mosquito species, and daily predation rate during five days were studied for Acanthocyclops robustus, Diacyclops uruguayensis, Macrocyclops albidus and Mesocyclops longisetus. Female copepods presented the highest predatory capacity. No predatory preference for mosquito species was found. According to overall predation potential, copepods were ranked as follows: D. uruguayensis < A. robustus < M. albidus < M. longisetus. Copepod tolerance to desiccation and capacity to survive in water from artificial containers were also evaluated. D. uruguayensis and A. robustus survived under dry conditions, but D. uruguayensis showed lower survival in water from cemetery flower vases. M. albidus did not survive under dry conditions and did not tolerate water extracted from artificial containers. M. longisetus survival was not severely reduced after desiccation or breeding in water from flower vases. The Neotropical cyclopoids D. uruguayensis and A. robustus can be considered good candidates and merit further research as biological control agents for mosquitoes.
对来自阿根廷拉普拉塔的桡足类动物进行了调查，以描述栖息在蚊子繁殖地的食蚊桡足类动物的当地群落特征，并识别在人工容器中出现的蚊子新捕食者物种，即埃及伊蚊和致倦库蚊。食蚊剑水蚤类的多样性在永久性池塘中最高。对粗壮刺剑水蚤、乌拉圭双剑水蚤、白色大剑水蚤和长刺中剑水蚤的性别和年龄捕食情况、对蚊子物种的选择性以及五天内的每日捕食率进行了研究。雌性桡足类动物具有最高的捕食能力。未发现对蚊子物种有捕食偏好。根据总体捕食潜力，桡足类动物的排名如下：乌拉圭双剑水蚤＜粗壮刺剑水蚤＜白色大剑水蚤＜长刺中剑水蚤。还评估了桡足类动物对干燥的耐受性以及在人工容器水中生存的能力。乌拉圭双剑水蚤和粗壮刺剑水蚤在干燥条件下存活，但乌拉圭双剑水蚤在墓地花瓶水中的存活率较低。白色大剑水蚤在干燥条件下无法存活，也不能耐受从人工容器中提取的水。长刺中剑水蚤在干燥或在花瓶水中繁殖后，存活率没有严重降低。新热带剑水蚤类的乌拉圭双剑水蚤和粗壮刺剑水蚤可被视为作为蚊子生物控制剂的良好候选者，值得进一步研究。
