Biology of Oithona similis (Copepoda: Cylopoida) in the Arctic, Antarctic and North Sea

北极、南极和北海的Oithona similis（桡足类：Cylopoida）生物学

• 批准号: 48309029
• 负责人: Professor Dr. Horst Kurt Schminke
• 金额: --
• 依托单位: Leibniz-Institut für Ostseeforschung Warnemünde (IOW)
• 依托单位国家: 德国
• 项目类别: Research Grants
• 财政年份: 2007
• 资助国家: 德国
• 起止时间: 2006-12-31 至 2010-12-31
• 项目状态: 已结题
• 来源: https://gepris.dfg.de/gepris/projekt/48309029?language=en
• 关键词: Biology; Oithona; similis; Copepoda; Cylopoida

Oithona similis belongs to the Copepoda Cyclopoida. It is highly abundant throughout many parts of the world ocean and supposed to be a cosmopolitan species. Aim of this project is to find out whether O. similis, a key species in the three chosen study areas (Arctic, Antarctic and North Sea), is indeed a cosmopolitan species. A further goal is a better understanding of its life cycle (or in case there are cryptic species of their life cycles) including feeding habits and generation times of the developmental stages, as well as the combined role of food resources and temperature within its/their life cycle/s. The literature is full of contradictory information on all aspects of the biology of O. similis. The main goal will be to find the reasons for these contradictions, whether they are caused by the great biological and/or genetical flexibility of the species or by the fact that there are several cryptic species. Such species may be very stenoecious as indicated by their similar or even identical morphology. This will be studied by using genetical and morphological techniques. The results will then dictate the further procedure. In case of a cosmopolitan species it will be examined whether morphologically different populations exist within each of the three study areas. In the other case it will be differentiated between the single cryptic species.

拟角蛇属桡足目环足目。它在世界海洋的许多地方都非常丰富，应该是一个世界性的物种。这个项目的目的是为了找出在三个选定的研究区域（北极，南极和北海）的关键物种，是否确实是一个世界性的物种。进一步的目标是更好地了解其生命周期（或如果存在其生命周期的隐种），包括发育阶段的摄食习惯和世代，以及食物资源和温度在其生命周期中的综合作用。文献中充满了关于O. similis生物学各个方面的相互矛盾的信息。主要目标将是找到这些矛盾的原因，无论它们是由物种的巨大生物和/或遗传灵活性引起的，还是由存在几个神秘物种的事实引起的。这类物种可能非常狭窄，因为它们的形态相似甚至完全相同。这将通过使用遗传学和形态学技术进行研究。结果将决定下一步的程序。在世界性物种的情况下，将检查在三个研究区域中是否存在形态不同的种群。在另一种情况下，它将在单个隐种之间进行区分。