hydromedusae

简明释义

英[ˌhaɪdrəʊmɪˈdjuːsiː]美[ˌhaɪdromɪˈdjʊzi]

n. 水螅水母（hydromedusa 的名词复数）；水螅水母纲，水螅水母类

英英释义

单词用法

同义词

反义词

例句

1.The fauna of Hydromedusae in Daya Bay belong to Indo-Malayan Subregion of Indo-West-Pacific Region.

大亚湾海域水螅水母类，其动物地理区划属印度-西太平洋区印-马亚区。

2.The fauna of Hydromedusae in Daya Bay belong to Indo-Malayan Subregion of Indo-West-Pacific Region.

大亚湾海域水螅水母类，其动物地理区划属印度-西太平洋区印-马亚区。

3.In the coastal waters, various species of hydromedusae 水母 can be found during the summer months.

在沿海水域，夏季可以发现多种类的hydromedusae 水母。

4.Researchers collected samples of hydromedusae 水母 to analyze their reproductive patterns.

研究人员收集了hydromedusae 水母的样本以分析它们的繁殖模式。

5.Some species of hydromedusae 水母 are bioluminescent, creating a beautiful display in the ocean.

一些hydromedusae 水母种类具有生物发光能力，在海洋中形成美丽的景观。

6.The lifecycle of hydromedusae 水母 includes both polyp and medusa stages.

hydromedusae 水母的生命周期包括水螅和水母阶段。

7.The study of hydromedusae 水母 has revealed new insights into marine biodiversity.

对hydromedusae 水母的研究揭示了海洋生物多样性的新见解。

作文

The fascinating world of marine life is filled with a variety of organisms, each with unique adaptations and characteristics. One such group that captures the attention of marine biologists and enthusiasts alike is the hydromedusae. These gelatinous creatures belong to the phylum Cnidaria, which also includes jellyfish, corals, and sea anemones. The term hydromedusae refers specifically to the medusa stage of certain hydrozoans, which are small, often transparent animals that inhabit both freshwater and marine environments.One of the most interesting aspects of hydromedusae is their lifecycle. They undergo a complex series of transformations, starting from a polyp stage, where they are anchored to a substrate. During this phase, they can reproduce asexually by budding, producing multiple clones that can disperse into the environment. Eventually, environmental conditions trigger the transition from the polyp to the medusa stage, where they become free-swimming organisms.In their medusa form, hydromedusae are typically bell-shaped and possess tentacles that hang downwards. These tentacles are equipped with specialized cells called cnidocytes, which contain stinging structures known as nematocysts. When prey, such as small fish or plankton, comes into contact with these tentacles, the nematocysts discharge, allowing the hydromedusae to capture their meal. This predatory behavior plays a crucial role in the marine food web, as they serve as both predators and prey within their ecosystems.Another remarkable feature of hydromedusae is their ability to bioluminesce. Some species can produce light in response to certain stimuli, a phenomenon that serves various purposes, including deterring predators and attracting mates. This bioluminescence is not only visually stunning but also highlights the diverse survival strategies found within the marine environment.Despite their beauty and ecological importance, hydromedusae face numerous threats due to human activities. Pollution, climate change, and habitat destruction have significantly impacted their populations. For instance, changes in water temperature and chemistry can disrupt their reproductive cycles and lead to declines in their numbers. Additionally, the proliferation of plastic waste in oceans poses a significant risk, as hydromedusae can mistake it for food, leading to ingestion and potential fatal consequences.Conservation efforts are essential to protect hydromedusae and their habitats. By raising awareness about the importance of these organisms and advocating for cleaner oceans, we can help ensure their survival for future generations. Research on their biology and ecology can also provide valuable insights into the health of marine ecosystems, as hydromedusae are often indicators of environmental changes.In conclusion, the hydromedusae represent a captivating aspect of marine biodiversity. Their intricate life cycles, unique adaptations, and ecological roles make them a subject of interest for scientists and nature lovers alike. Understanding and protecting these delicate creatures is vital for maintaining the balance of marine ecosystems and ensuring the health of our oceans. As we continue to explore the depths of our seas, let us not forget the significance of hydromedusae and the myriad of life forms that share our planet's waters.

海洋生物的迷人世界充满了各种各样的生物，每种生物都有独特的适应性和特征。其中一个吸引海洋生物学家和爱好者注意的群体是水母。这些胶状生物属于腔肠动物门，其中还包括水母、珊瑚和海葵。术语水母专指某些水螅类动物的水母阶段，这些小型、通常透明的生物栖息在淡水和海洋环境中。水母最有趣的方面之一是它们的生命周期。它们经历一系列复杂的转变，从一个附着在基质上的水螅阶段开始。在这一阶段，它们可以通过出芽无性繁殖，产生多个克隆，能够分散到环境中。最终，环境条件会触发从水螅到水母阶段的转变，使它们成为自由游动的生物。在水母形态中，水母通常呈钟形，拥有向下垂挂的触手。这些触手上装备有称为刺细胞的特殊细胞，其中含有被称为刺丝囊的刺结构。当猎物（如小鱼或浮游生物）接触到这些触手时，刺丝囊会释放，使得水母能够捕获它们的食物。这种捕食行为在海洋食物网中发挥着重要作用，因为它们既是捕食者也是其生态系统中的猎物。水母的另一个显著特征是它们的生物发光能力。一些物种能够对特定刺激产生光，这种现象服务于多种目的，包括威慑捕食者和吸引配偶。这种生物发光不仅视觉上令人惊艳，还突显了海洋环境中多样的生存策略。尽管水母美丽且生态重要，但由于人类活动，它们面临着许多威胁。污染、气候变化和栖息地破坏对它们的种群产生了重大影响。例如，水温和化学成分的变化可能会干扰它们的繁殖周期，导致数量下降。此外，海洋中塑料垃圾的激增也构成了重大风险，因为水母可能将其误认为食物，导致摄入并可能致命。保护工作对于保护水母及其栖息地至关重要。通过提高人们对这些生物重要性的认识并倡导清洁海洋，我们可以帮助确保它们的生存。对它们的生物学和生态学的研究也可以提供有关海洋生态系统健康的宝贵见解，因为水母通常是环境变化的指示物。总之，水母代表了海洋生物多样性的迷人方面。它们复杂的生命周期、独特的适应性和生态角色使它们成为科学家和自然爱好者感兴趣的对象。理解和保护这些脆弱的生物对于维护海洋生态系统的平衡和确保我们海洋的健康至关重要。当我们继续探索海洋深处时，让我们不要忘记水母以及与我们星球水域共享的无数生命形式的重要性。