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寄生虫感染对鱼体状况的影响:系统性审查和元分析
Ryota Hasegawa1, Robert Poulin2
1Graduate School of Environmental Science, Hokkaido University, N10W5 Sapporo, Hokkaido 060-0810, Japan; Department of Zoology, University of Otago, Dunedin 9054, New Zealand.
International journal for parasitology
|April 9, 2025
概括
身体状况指数 (BCI) 被广泛用于评估寄生虫对鱼类健康的影响. 然而,研究方法显著影响结果,一些指数可能会高估负面寄生虫影响.
科学领域:
- 生态生态学 生态生态学
- 寄生虫学的寄生虫学
- 渔业 科学 渔业 科学
背景情况:
- 宿主体状况指数 (BCI) 通常用于评估寄生虫对宿主健康的影响,特别是在鱼类中.
- 尽管广泛使用,但BCI感染关系的一般模式和影响因素仍然不清楚.
研究的目的:
- 系统地审查鱼类与BCI感染的关系,并确定影响其强度和方向的因素.
- 调查寄生虫研究中使用的BCI测量和感染指标中的潜在偏差.
主要方法:
- 来自216个出版物的985种鱼类BCI感染关系的元分析.
- 超回归分析以探索BCI测量,寄生虫组和感染测量对效应大小的影响.
主要成果:
- 大多数研究都倾向于特定的BCI (富尔顿,相对BCI),富尔顿的BCI与更显著的结果相关,这表明潜在的高估.
- 寄生虫强度和实验性感染更有可能产生显著的负面影响.
- 许多研究,特别是基于现场的研究,没有发现显著的负面BCI感染相关性,这与常见的假设相矛盾.
结论:
- 选择BCI和感染测量可以显著偏向对寄生虫对宿主状况影响的评估.
- 研究人员应批判性地评估BCI感染研究中的方法选择.
- 需要进一步的研究,以了解寄生虫对宿主健康影响的细微差别,并完善BCI应用.
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