Monzon R B, Kitikoon V, Thammapalerd N, Temcharoen P, Sornmani S, Viyanant V
Department of Parasitology, UP College of Public Health, Manila, Philippines.
Southeast Asian J Trop Med Public Health. 1993 Sep;24(3):563-9.
Field surveys conducted at Echague, Isabela and San Pablo, Laguna revealed that Lymnaea (Bullastra) cumingiana, the natural second snail intermediate host of Echinostoma malayanum in the Philippines, exhibits a moderate degree of diversity in its choice of habitats. Rice fields of all stages of development, stagnant shallow streams and springs are the main areas where the snail can be collected from at Echague, Isabela. However, they were absent in rice fields that had been extensively sprayed with molluscicides to control the "golden apple snail" (Ampullarius canaliculatus). In contrast, they were also very abundant in the highly eutrophic waters of Sampaloc lake, San Pablo, Laguna. L. cumingiana co-exists with various species of insects, snails, fish and plants in these habitats. Information on ecological characteristics affecting its distribution will be useful for those who wish to collect and study this species in the future.
在伊莎贝拉省埃查格和拉古纳省圣巴勃罗进行的实地调查显示，菲律宾马来棘口吸虫的天然第二中间宿主——光壳椎实螺（Lymnaea (Bullastra) cumingiana）在栖息地选择上表现出一定程度的多样性。在伊莎贝拉省埃查格，各个发育阶段的稻田、停滞的浅溪和泉水是可以采集到这种螺的主要区域。然而，在为控制“福寿螺”（Ampullarius canaliculatus）而大量喷洒杀螺剂的稻田中没有这种螺。相比之下，在拉古纳省圣巴勃罗的桑帕洛克湖的富营养化水域中，这种螺也非常多。光壳椎实螺在这些栖息地与各种昆虫、螺、鱼和植物共存。了解影响其分布的生态特征将对未来希望采集和研究该物种的人有所帮助。
