nauplius

简明释义

英[ˈnɔːplɪəs]美[ˈnɔːpliːəs]

n. [无脊椎] 无节幼体；甲壳类动物的幼虫形式之一

复 数 n a u p l i i

英英释义

单词用法

同义词

反义词

例句

1.In the course of development, the invagination of stomodeum occurs earlier than that of proctodeum at the third and the sixth nauplius stages respectively.

在发育过程中，口凹是在第三期无节幼虫时内陷形成，而原肛是在第六期无节幼虫时内陷形成的，所以口凹的发生早于原肛的发生。

2.In the course of development, the invagination of stomodeum occurs earlier than that of proctodeum at the third and the sixth nauplius stages respectively.

在发育过程中，口凹是在第三期无节幼虫时内陷形成，而原肛是在第六期无节幼虫时内陷形成的，所以口凹的发生早于原肛的发生。

3.During the study of marine biology, we observed a nauplius swimming in the plankton.

在海洋生物学研究中，我们观察到一只在浮游生物中游动的浮游幼虫。

4.Researchers found that the survival rate of nauplii can be affected by water temperature.

研究人员发现，水温会影响浮游幼虫的存活率。

5.The larval stage of many crustaceans begins as a nauplius, which is a free-swimming form.

许多甲壳类动物的幼虫阶段以浮游幼虫开始，这是一种自由游动的形态。

6.In aquaculture, understanding the behavior of nauplii can improve shrimp farming.

在水产养殖中，了解浮游幼虫的行为可以改善虾的养殖。

7.The nauplius stage is crucial for the survival of many aquatic species.

浮游幼虫阶段对许多水生物种的生存至关重要。

作文

The term nauplius refers to a specific larval stage in the life cycle of certain crustaceans, including crabs, shrimp, and barnacles. This stage is crucial for the development of these marine organisms, as it marks the transition from egg to a more complex form. Understanding the nauplius stage is essential for marine biologists and ecologists who study the growth patterns and population dynamics of crustacean species.During the nauplius stage, the organism is typically small and free-swimming, which allows it to disperse in the ocean. This mobility is vital for the survival of the species, as it enables the young crustaceans to find food and avoid predators. The nauplius usually has a simple body structure, consisting of a head and a few appendages, which are used for swimming. As the nauplius matures, it undergoes several molts, gradually developing into more complex forms with additional body segments and specialized limbs.One of the fascinating aspects of the nauplius stage is its role in the ecological system. These tiny organisms serve as a crucial food source for various marine animals, including fish and larger crustaceans. Therefore, the health and abundance of nauplius populations can significantly impact the entire marine food web. Researchers often monitor nauplius populations to assess the health of marine ecosystems and to understand the effects of environmental changes such as pollution and climate change.In addition to their ecological importance, nauplius stages are also significant in aquaculture. Many commercial seafood species, such as shrimp and crabs, are cultivated from their nauplius stages. Farmers must carefully manage the conditions under which these larvae develop to ensure high survival rates and healthy growth. This involves controlling water quality, temperature, and food availability, all of which are crucial for the successful rearing of nauplius into mature marketable products.Furthermore, the study of the nauplius stage can provide insights into evolutionary biology. By examining the differences and similarities in the nauplius forms of various crustacean species, scientists can infer evolutionary relationships and adaptations. This research helps to construct phylogenetic trees, which illustrate how different species are related through common ancestors.In conclusion, the nauplius stage is a vital part of the life cycle of many crustaceans, playing a key role in both ecological systems and aquaculture practices. Understanding this stage not only enhances our knowledge of marine biology but also aids in the sustainable management of marine resources. As we continue to explore the complexities of marine life, the nauplius will undoubtedly remain a subject of interest and importance for researchers and practitioners alike.

术语nauplius指的是某些甲壳类动物（包括螃蟹、虾和藤壶）生命周期中的特定幼虫阶段。这个阶段对这些海洋生物的发展至关重要，因为它标志着从卵到更复杂形态的过渡。理解nauplius阶段对于研究甲壳类物种的生长模式和种群动态的海洋生物学家和生态学家来说是必不可少的。在nauplius阶段，生物通常体型较小且自由游动，这使其能够在海洋中扩散。这种活动性对物种的生存至关重要，因为它使幼年甲壳类动物能够寻找食物并避免捕食者。nauplius通常具有简单的身体结构，由头部和几个附肢组成，用于游泳。随着nauplius的成熟，它经历几次蜕皮，逐渐发展成更复杂的形式，具有额外的身体段和专门的肢体。nauplius阶段的一个迷人之处在于它在生态系统中的角色。这些微小的生物为各种海洋动物（包括鱼类和大型甲壳类）提供了重要的食物来源。因此，nauplius种群的健康和丰度可以显著影响整个海洋食物网。研究人员经常监测nauplius种群，以评估海洋生态系统的健康状况，并了解污染和气候变化等环境变化的影响。除了生态重要性之外，nauplius阶段在水产养殖中也很重要。许多商业海鲜物种，如虾和螃蟹，都是从其nauplius阶段培养而来的。养殖者必须仔细管理这些幼虫发育的条件，以确保高的存活率和健康的生长。这涉及控制水质、温度和食物供应，而这些对成功饲养nauplius成可销售的成熟产品至关重要。此外，研究nauplius阶段可以为进化生物学提供见解。通过检查不同甲壳类物种的nauplius形式之间的差异和相似性，科学家可以推断进化关系和适应性。这项研究有助于构建系统发育树，展示不同物种通过共同祖先的关系。总之，nauplius阶段是许多甲壳类动物生命周期中的重要部分，在生态系统和水产养殖实践中发挥着关键作用。理解这一阶段不仅增强了我们对海洋生物学的认识，还有助于可持续管理海洋资源。随着我们继续探索海洋生命的复杂性，nauplius无疑将继续成为研究人员和从业者关注和重视的对象。