Helminth fauna of the black goby Gobius niger L. (Gobiiformes: Gobiidae) from the Finnish Archipelago, Baltic Sea: Molecular and morphological data

Inga Martinek , Jesús S. Hernández-Orts
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Abstract

Black gobies (Gobius niger) from the Finnish Archipelago, Baltic Sea, were screened for helminth infections in summer 2020. Helminths were identified morphologically and/or molecularly. Altogether 26 novel sequences were generated and analysed using maximum likelihood estimation. Morphological and phylogenetic analyses based on mitochondrial genes revealed the presence of 8 species belonging to the Digenea (Diplostomum mergi Lineage 3), Cestoda (Bothriocephalus scorpii), Nematoda (Contracaecum rudolphii A, Cucullanus sp. and Hysterothylacium aduncum), and Acanthocephala (a putative new species of Corynosoma, Corynosoma semerme and Neoechinorhynchus sp.). Phylogenetic and comparative sequence analyses revealed that the putative new acanthocephalan species is closely related to C. neostrumosum described from the Caspian seal, Pusa caspica, in the Caspian Sea. The black goby represents a new host record for four parasite species (Diplostomum mergi Lineage 3, Contracaecum rudolphii A, Corynosoma semerme and Corynosoma sp.). The Finnish Archipelago is a novel locality record for three species (Corynosoma sp., Diplostomum mergi Lineage 3 and Bothriocephalus scorpii).

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波罗的海芬兰群岛黑鰕虎鱼(戈壁形目:戈壁鱼科)的螺旋体动物群:分子和形态数据
2020 年夏季,对波罗的海芬兰群岛的黑鰕虎鱼(Gobius niger)进行了螺旋体感染筛查。蠕虫通过形态学和/或分子鉴定。共产生了 26 个新序列,并使用最大似然估计法进行了分析。基于线粒体基因的形态学和系统发生学分析表明,存在 8 个属于地肤纲(Diplostomum mergi Lineage 3)、绦虫纲(Bothriocephalus scorpii)、线虫纲(Contracaecum rudolphii A、Cucullanus sp.和 Hysterothylacium aduncum),以及棘尾目(Corynosoma 的一个推定新种、Corynosoma semerme 和 Neoechinorhynchus sp.)。系统发生学和比较序列分析表明,推测的新棘尾鱼物种与里海海豹(Pusa caspica)中描述的 C. neostrumosum 关系密切。黑鰕虎鱼代表了四种寄生虫(Diplostomum mergi Lineage 3、Contracaecum rudolphii A、Corynosoma semerme 和 Corynosoma sp.)的新宿主记录。芬兰群岛是三个物种(Corynosoma sp.、Diplostomum mergi Lineage 3 和 Bothriocephalus scorpii)的新地点记录。
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Editorial Board Table of Contents An abortion storm in a goat farm in the Northeast Region of Brazil was caused by the atypical Toxoplasma gondii genotype #13 Helminth fauna of the black goby Gobius niger L. (Gobiiformes: Gobiidae) from the Finnish Archipelago, Baltic Sea: Molecular and morphological data A case of abnormal swimming patterns in juvenile Oblada melanura naturally infected with Philometra obladae (Nematoda: Philometridae) in the Tyrrhenian Sea off Sicily, Italy
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