Meiofauna diversity – investigations on Halammohydra (Cnidaria, Hydrozoa)

小型动物多样性 ― 钝水螅（刺胞动物、水螅动物）的调查

• 批准号: 419447657
• 负责人: Professor Dr. Andreas Schmidt-Rhaesa
• 金额: --
• 依托单位: Abteilung Wirbellose Tiere
• 依托单位国家: 德国
• 项目类别: Research Grants
• 财政年份: 2019
• 资助国家: 德国
• 起止时间: 2018-12-31 至 2021-12-31
• 项目状态: 已结题
• 来源: https://gepris.dfg.de/gepris/projekt/419447657?language=en
• 关键词: Meiofauna; diversity; investigations; Halammohydra; Cnidaria

Species composition and distribution patterns of many organisms of the marine meiofauna are still largely unknown. Taking the comparably species-poor genus Halammohydra, which is distributed within the North Sea with several species, as example, it shall be investigated whether the described species are valid, whether there is morphological plasticity and how species are distributed. Investigations will be performed at four European marine stations (Helgoland, Bergen, Kristineberg, Roscoff). The sampled specimens are documented morphologically and the majority of them are characterised genetically (CO1, ITS2, 18S) . A smaller proportion of the specimens is investigated morphologically in more detail (cnidome, ultrastructure, immunohistochemistry of the nervous system). We expect to receive a clear picture of the species composition and distribution capacity of this charismatic member of the intersitital system.

海洋小型动物群许多生物的物种组成和分布模式仍然很大程度上未知。以北海分布的物种相对稀少的HalammoHydra属为例，需要考察所描述的物种是否有效、是否具有形态可塑性以及物种的分布情况。调查将在四个欧洲海洋站（赫尔戈兰、卑尔根、克里斯蒂娜贝格、罗斯科夫）进行。采样的标本进行了形态学记录，其中大部分进行了基因表征（CO1、ITS2、18S）。对较小比例的标本进行更详细的形态学研究（蛇腹、超微结构、神经系统的免疫组织化学）。我们期望能够清楚地了解间质系统中这一魅力成员的物种组成和分布能力。