Host selection and potential predation in the host-parasite interaction between the isopod Tachaea chinensis and freshwater host species.
Host selection and potential predation in the host-parasite interaction between the isopod Tachaea chinensis and freshwater host species.
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DOI：
10.1016/j.ijppaw.2023.04.006
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发表时间：
2023-08
影响因子：
1.8
通讯作者：
Saito, Hidetoshi
中科院分区：
文献类型：
--
作者：
Khalfan, Al-Wahaibi Mohamed;Tani, Shotaro;Aoki, Yudai;Younes, Abdelgayed;Saito, Hidetoshi
关键词：
Tachaea chinensis是一种体外寄生虫，常见于各种具有生态和商业价值的淡水虾和对虾上。以前对这种寄生虫的研究主要集中在它的分布和分类鉴定上，而对它的寄主偏好和/或在这种寄主-寄生虫相互作用中的潜在捕食作用还知之甚少。在这项研究中，我们在实验室环境下通过操纵性选择和捕食实验研究了等足目中华绒毛虫的寄主选择性和潜在的捕食行为。在单一寄主处理中，对广泛的寄主十足类动物的偏好表明寄主特异性低，这最终有助于这种寄生虫在自然环境中的生存。当在所有三个处理中都有罕见的寄主物种时，Tachaea chinensis对对虾Palaemon paucidens的反应良好。在寄主-寄生虫捕食处理中，所有受试的淡色对虾、日本沼虾和克氏原虾都能够捕食等足类--特别是入侵的克氏原虾，后者在相当短的时间内消耗了更多的比例(Fisher‘s Exact test，P<；P<；(0.01))。这项研究首次证明了较大的淡水十足类动物捕食中华绒毛虫的能力。尽管这些淡水物种的最大体型存在很大差异，但如果它们出现在相同的环境中，入侵的小龙虾对等足类动物的捕食压力预计会很高。中国等足目动物侵染了所有受试的十足类物种。等足类对人工虾、鱼的亲和力最低。中国茶树寄主选择强烈偏向于常见寄主少花绿僵菌。大型寄主物种在实验室环境下捕食中国茶树等足类动物。入侵小龙虾Procambarus clarkii在较短的时间内吃掉了等足类动物。
Tachaea chinensis is an ectoparasite commonly found on diverse ecologically and commercially valuable freshwater shrimps and prawns. Previous studies on this parasite have focused on its distribution and taxonomical identification, while its host preference and/or the potential predation in this host-parasite interaction remained poorly understood. In this study, we investigate the host preference and potential predation of the isopod T. chinensis using manipulative choice and predation experiments under laboratory settings. The preference toward a broad range of host decapods in single-host treatments, indicates a low host specificity, which ultimately aids in the survival of this parasite in the natural environment. Tachaea chinensis responded well to the shrimp Palaemon paucidens when presented with uncommon host species in all three treatments. In host-parasite predation treatments, all the tested P. paucidens shrimp, the prawn Macrobrachium nipponense, and the crayfish Procambarus clarkii were able to consume the isopod–especially the invasive crayfish P. clarkii, which consumed a greater percentage in a considerably shorter time frame (Fisher's exact test, P < 0.01). This study demonstrated for the first time the ability of larger freshwater decapods to prey upon T. chinensis. Despite the large difference in the maximum attainable size of those freshwater species, a high predation pressure by the invasive crayfish on the isopod is anticipated, if they are present in the same environment. The isopod Tachaea chinensis infested all of the tested decapods species. The artificial shrimp and fish species received the lowest affinity by the isopod. Tachaea chinensis host selection strongly favor the common host Palaemon paucidens. Large host species predated on Tachaea chinensis isopod in laboratory settings. The invasive crayfish Procambarus clarkii consumed the isopod in shorter time.
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DOI：
10.3856/vol43-issue5-fulltext-13
发表时间：
2015-11-01
影响因子：
1
作者：
Gentil-Vasconcelos, Huann Carllo;Tavares-Dias, Marcos
通讯作者：
Tavares-Dias, Marcos
影响因子：
1.3
作者：
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通讯作者：
TONGUTHAI, K
影响因子：
2.6
作者：
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通讯作者：
Akiyama, Yoshihiro B.
影响因子：
1.6
作者：
Ogasawara, Chogo;Imai, Tadashi;Saito, Hidetoshi
通讯作者：
Saito, Hidetoshi
影响因子：
1.4
作者：
Xu, Weibin;Li, Xin;Li, Yingdong
通讯作者：
Li, Yingdong