Patent Dirofilaria immitis infection in Galapagos sea lion rookeries in San Cristóbal Island.

IF 2.4 3区 医学 Q2 PARASITOLOGY
Carla A Culda, Rommel Lenin Vinueza, Marjorie Riofrío-Lazo, Renato Leon, Diego Páez-Rosas, Andrei Daniel Mihalca
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Abstract

The Galapagos sea lion (Zalophus wollebaeki) is an endemic and endangered species that plays a vital role in the ecosystem dynamics of the archipelago. In recent decades, they have faced a significant population decline, related to the effects of climate variability and anthropogenic influences. Thus, the co-occurrence of sea lion resting areas with mosquito breeding sites and the presence of free-roaming domestic dogs present significant health risks related to parasite transmission. This research demonstrates the occurrence of Dirofilaria immitis (canine heartworm) in Z. wollebaeki, indicating their possible function as a definitive host for this parasite. Blood samples collected in August 2023 from 50 individuals (juveniles and adults) in 2 rookeries of San Cristóbal Island, revealed a 2% prevalence of D. immitis in juvenile females, as confirmed by Knott's test and polymerase chain reaction analysis. Results of this work emphasize the critical necessity for effective monitoring and conservation strategies to address the threat posed by D. immitis and to safeguard this endangered species.

圣Cristóbal岛加拉帕戈斯海狮繁殖地的专利免疫丝虫感染。
加拉帕戈斯海狮(Zalophus wollebaeki)是一种特有的濒危物种,在群岛的生态系统动态中起着至关重要的作用。近几十年来,由于气候变率和人为影响的影响,它们面临着显著的人口下降。因此,海狮休息区与蚊子滋生地共存以及自由漫游的家狗存在与寄生虫传播相关的重大健康风险。本研究证实了犬心丝虫(Dirofilaria immitis)在wollebaeki体内的存在,表明它们可能是该寄生虫的最终宿主。2023年8月,在圣Cristóbal岛的2个种群中采集了50只幼鸟(幼鸟和成年鸟)的血液样本,经Knott试验和聚合酶链反应分析证实,幼鸟雌性中有2%的弓形虫感染率。本研究结果强调了有效监测和保护策略的重要性,以解决该物种的威胁,并保护这一濒危物种。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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来源期刊
Parasitology
Parasitology 医学-寄生虫学
CiteScore
4.80
自引率
4.20%
发文量
280
审稿时长
3-8 weeks
期刊介绍: Parasitology is an important specialist journal covering the latest advances in the subject. It publishes original research and review papers on all aspects of parasitology and host-parasite relationships, including the latest discoveries in parasite biochemistry, molecular biology and genetics, ecology and epidemiology in the context of the biological, medical and veterinary sciences. Included in the subscription price are two special issues which contain reviews of current hot topics, one of which is the proceedings of the annual Symposia of the British Society for Parasitology, while the second, covering areas of significant topical interest, is commissioned by the editors and the editorial board.
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