Parasitic isopods infecting cultured Macrobrachium lanchesteri (De Man, 1911) freshwater prawns in Thailand, including a novel species, Tachaea kamphaengsaenensis sp. n.

IF 3.7 2区农林科学 Q1 FISHERIES

Aquaculture Reports Pub Date : 2026-04-15 Epub Date: 2026-02-12 DOI:10.1016/j.aqrep.2026.103458

Poramad Trivalairat , Krittiya Trivalairat , Damrong Chainthong , Apiruedee Songsuk , Watchariya Purivirojkul

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Abstract

The discovery of parasitic isopod Tachaea kamphaengsaenensis sp. n. on freshwater prawn Macrobrachium lanchesteri (De Man, 1911) is described herein. It was found through an extensive survey of cultured and natural ponds in six provinces of Thailand: Bangkok, Chonburi, Nonthaburi, Suphan Buri, Pathum Thani, and Nakhon Pathom. This parasitic isopod species exerts detrimental effects on the prawn’s exoskeleton and damages its eggs. The morphology of Tachaea kamphaengsaenensis sp. n. is distinguished from other species in the genus by the distinct pattern of the setae on the pereopods, pleopods, and maxillipeds. This species also differs morphologically from the other Tachaea species previously reported in Thailand. Furthermore, molecular data analysis reveals a monophyletic divergence from T. chinensis and T. spongillicola. This paper presents the first documented occurrence of T. kamphaengsaenensis sp. n., marking the first record of this parasite in M. lanchesteri and the second record of a prawn-parasitic isopod in Thailand.

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寄生等足类感染泰国养殖的兰氏沼虾（De Man, 1911）淡水对虾，包括一个新种，Tachaea kamphaengsaenensis sp. n。

本文描述了在兰彻斯特沼虾（De Man, 1911）上发现的寄生等足动物kamphaengsaenensis sp. n.。这是通过对泰国六个省份的养殖和天然池塘进行广泛调查发现的：曼谷，春武里，Nonthaburi，素潘武里，Pathum Thani和Nakhon Pathom。这种寄生的等足类动物会对对虾的外骨骼产生有害影响，并破坏对虾的卵。kamphaengsaenensis sp. n.的形态与该属其他物种的区别在于准足类、多足类和上足类动物上独特的刚毛模式。该物种在形态上也不同于先前在泰国报道的其他Tachaea物种。此外，分子数据分析表明，中国赤潮蝗和海绵赤潮蝗存在单系分化。本文报道了kamphaengsaenensis sp. n.的首次记录，标志着该寄生虫在泰国兰切氏杆菌中首次记录，并在泰国第二次记录了对虾寄生等足类动物。

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

Aquaculture Reports Agricultural and Biological Sciences-Animal Science and Zoology

CiteScore

5.90

自引率

8.10%

发文量

469

审稿时长

77 days

期刊介绍： Aquaculture Reports will publish original research papers and reviews documenting outstanding science with a regional context and focus, answering the need for high quality information on novel species, systems and regions in emerging areas of aquaculture research and development, such as integrated multi-trophic aquaculture, urban aquaculture, ornamental, unfed aquaculture, offshore aquaculture and others. Papers having industry research as priority and encompassing product development research or current industry practice are encouraged.