Clarisse Louvard, Russell Qi-Yung Yong, Anja Vermaak, Linda de Klerk, Adri Joubert, Nico J Smit
{"title":"1858年感染棘鱼的棘子叶虫属Diesing一新种（吸虫纲：绢虫科），非洲南部海洋吸虫的第一个完整生活史。","authors":"Clarisse Louvard, Russell Qi-Yung Yong, Anja Vermaak, Linda de Klerk, Adri Joubert, Nico J Smit","doi":"10.1017/S0031182025100681","DOIUrl":null,"url":null,"abstract":"<p><p>We present the first elucidated marine trematode life-cycle for southern Africa, involving intermediate and definitive hosts from the southwestern Indian Ocean, through southern South Africa and to the southeastern Atlantic Ocean in Namibia. Adults of <i>Rhipidocotyle meridionalis</i> n. sp. were found infecting leerfish, <i>Lichia amia</i> (L.) (Carangiformes: Carangidae), in the Tsitsikamma section of Garden Route National Park, South Africa. Bucephalid sporocysts and cercariae isolated from a brown mussel, <i>Perna perna</i> (L.) (Bivalvia: Mytilidae), were subsequently recovered from the same area and are a perfect genetic match with adults of <i>R. meridionalis</i> n. sp. based on the partial 28S rDNA region. Metacercariae encysted in multiple organs of the following fishes were found to genetically match this taxon: <i>Chelon richardsonii</i> (Smith) (Mugiliformes: Mugilidae), <i>Dichistius capensis</i> (Cuvier) (Centrarchiformes: Dichistiidae) and <i>Diplodus capensis</i> (Smith) (Eupercaria <i>i. s.</i>: Sparidae) from the coast between Swakopmund and Walvis Bay, Namibia; <i>Chelon dumerili</i> (Steindachner) (Mugiliformes: Mugilidae), <i>Chrysoblephus laticeps</i> (Valenciennes), <i>Dip. capensis, Sarpa salpa</i> (L.) and <i>Sparodon durbanensis</i> (Castelnau) (Eupercaria <i>i. s.</i>: Sparidae) from Tsitsikamma; <i>Amblyrhynchote honckenii</i> (Bloch) (Tetraodontiformes: Tetraodontidae) and <i>Rhabdosargus holubi</i> (Steindachner) (Eupercaria <i>i. s.</i>: Sparidae) from Witsand; <i>A. honckenii</i> from Chintsa, De Hoop Nature Reserve and Uvongo; and <i>Dip. capensis</i> from Mossel Bay. The southern coast of South Africa, where the type-locality of <i>R. meridionalis</i> n. sp. is located, is influenced by both cold Atlantic and warm Indian Ocean currents and is thus subjected to complex hydrological patterns. This life-cycle, linking hosts present in both oceans, informs both the picture of host- and trematode connectivity in southern Africa.</p>","PeriodicalId":19967,"journal":{"name":"Parasitology","volume":" ","pages":"1-18"},"PeriodicalIF":2.4000,"publicationDate":"2025-08-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"A new species of <i>Rhipidocotyle</i> Diesing, 1858 (Trematoda: Bucephalidae) infecting leerfish, <i>Lichia amia</i> (L.) (Teleostei: Carangidae), and the first complete life-cycle for a marine trematode from Southern Africa.\",\"authors\":\"Clarisse Louvard, Russell Qi-Yung Yong, Anja Vermaak, Linda de Klerk, Adri Joubert, Nico J Smit\",\"doi\":\"10.1017/S0031182025100681\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<p><p>We present the first elucidated marine trematode life-cycle for southern Africa, involving intermediate and definitive hosts from the southwestern Indian Ocean, through southern South Africa and to the southeastern Atlantic Ocean in Namibia. Adults of <i>Rhipidocotyle meridionalis</i> n. sp. were found infecting leerfish, <i>Lichia amia</i> (L.) (Carangiformes: Carangidae), in the Tsitsikamma section of Garden Route National Park, South Africa. Bucephalid sporocysts and cercariae isolated from a brown mussel, <i>Perna perna</i> (L.) (Bivalvia: Mytilidae), were subsequently recovered from the same area and are a perfect genetic match with adults of <i>R. meridionalis</i> n. sp. based on the partial 28S rDNA region. Metacercariae encysted in multiple organs of the following fishes were found to genetically match this taxon: <i>Chelon richardsonii</i> (Smith) (Mugiliformes: Mugilidae), <i>Dichistius capensis</i> (Cuvier) (Centrarchiformes: Dichistiidae) and <i>Diplodus capensis</i> (Smith) (Eupercaria <i>i. s.</i>: Sparidae) from the coast between Swakopmund and Walvis Bay, Namibia; <i>Chelon dumerili</i> (Steindachner) (Mugiliformes: Mugilidae), <i>Chrysoblephus laticeps</i> (Valenciennes), <i>Dip. capensis, Sarpa salpa</i> (L.) and <i>Sparodon durbanensis</i> (Castelnau) (Eupercaria <i>i. s.</i>: Sparidae) from Tsitsikamma; <i>Amblyrhynchote honckenii</i> (Bloch) (Tetraodontiformes: Tetraodontidae) and <i>Rhabdosargus holubi</i> (Steindachner) (Eupercaria <i>i. s.</i>: Sparidae) from Witsand; <i>A. honckenii</i> from Chintsa, De Hoop Nature Reserve and Uvongo; and <i>Dip. capensis</i> from Mossel Bay. The southern coast of South Africa, where the type-locality of <i>R. meridionalis</i> n. sp. is located, is influenced by both cold Atlantic and warm Indian Ocean currents and is thus subjected to complex hydrological patterns. This life-cycle, linking hosts present in both oceans, informs both the picture of host- and trematode connectivity in southern Africa.</p>\",\"PeriodicalId\":19967,\"journal\":{\"name\":\"Parasitology\",\"volume\":\" \",\"pages\":\"1-18\"},\"PeriodicalIF\":2.4000,\"publicationDate\":\"2025-08-08\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Parasitology\",\"FirstCategoryId\":\"3\",\"ListUrlMain\":\"https://doi.org/10.1017/S0031182025100681\",\"RegionNum\":3,\"RegionCategory\":\"医学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q2\",\"JCRName\":\"PARASITOLOGY\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Parasitology","FirstCategoryId":"3","ListUrlMain":"https://doi.org/10.1017/S0031182025100681","RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"PARASITOLOGY","Score":null,"Total":0}
A new species of Rhipidocotyle Diesing, 1858 (Trematoda: Bucephalidae) infecting leerfish, Lichia amia (L.) (Teleostei: Carangidae), and the first complete life-cycle for a marine trematode from Southern Africa.
We present the first elucidated marine trematode life-cycle for southern Africa, involving intermediate and definitive hosts from the southwestern Indian Ocean, through southern South Africa and to the southeastern Atlantic Ocean in Namibia. Adults of Rhipidocotyle meridionalis n. sp. were found infecting leerfish, Lichia amia (L.) (Carangiformes: Carangidae), in the Tsitsikamma section of Garden Route National Park, South Africa. Bucephalid sporocysts and cercariae isolated from a brown mussel, Perna perna (L.) (Bivalvia: Mytilidae), were subsequently recovered from the same area and are a perfect genetic match with adults of R. meridionalis n. sp. based on the partial 28S rDNA region. Metacercariae encysted in multiple organs of the following fishes were found to genetically match this taxon: Chelon richardsonii (Smith) (Mugiliformes: Mugilidae), Dichistius capensis (Cuvier) (Centrarchiformes: Dichistiidae) and Diplodus capensis (Smith) (Eupercaria i. s.: Sparidae) from the coast between Swakopmund and Walvis Bay, Namibia; Chelon dumerili (Steindachner) (Mugiliformes: Mugilidae), Chrysoblephus laticeps (Valenciennes), Dip. capensis, Sarpa salpa (L.) and Sparodon durbanensis (Castelnau) (Eupercaria i. s.: Sparidae) from Tsitsikamma; Amblyrhynchote honckenii (Bloch) (Tetraodontiformes: Tetraodontidae) and Rhabdosargus holubi (Steindachner) (Eupercaria i. s.: Sparidae) from Witsand; A. honckenii from Chintsa, De Hoop Nature Reserve and Uvongo; and Dip. capensis from Mossel Bay. The southern coast of South Africa, where the type-locality of R. meridionalis n. sp. is located, is influenced by both cold Atlantic and warm Indian Ocean currents and is thus subjected to complex hydrological patterns. This life-cycle, linking hosts present in both oceans, informs both the picture of host- and trematode connectivity in southern Africa.
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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