elver

简明释义

英[ˈelvə(r)]美[ˈelvər]

n. 幼鳗

英英释义

单词用法

同义词

反义词

例句

1.These have either fled north to stay cool or been fished to the last elver before being turned into salmon feed.

这些鱼类不是逃往北方寒冷的水域，就是在长成为鲑鱼食物之前被捕捞到只剩下幼鳗。

2.These have either fled north to stay cool or been fished to the last elver before being turned into salmon feed.

这些鱼类不是逃往北方寒冷的水域，就是在长成为鲑鱼食物之前被捕捞到只剩下幼鳗。

3.The elver (鳗鱼幼体) population has been declining due to overfishing.

由于过度捕捞，elver（鳗鱼幼体）的数量一直在下降。

4.The fisherman caught several young elvers (鳗鱼幼体) in the river.

渔夫在河里抓到了几条年轻的elvers（鳗鱼幼体）。

5.In some cultures, elvers (鳗鱼幼体) are considered a delicacy.

在一些文化中，elvers（鳗鱼幼体）被视为美味佳肴。

6.During the spring, many elvers (鳗鱼幼体) migrate upstream to spawn.

在春天，许多elvers（鳗鱼幼体）向上游迁移以产卵。

7.Aquaculture farms are now raising elvers (鳗鱼幼体) to meet market demand.

水产养殖场现在正在养殖elvers（鳗鱼幼体）以满足市场需求。

作文

In the world of aquatic life, one fascinating creature that often goes unnoticed is the elver. An elver is a juvenile eel, specifically the young stage of the European eel and American eel. These small, slender fish play a crucial role in the ecosystem and have a unique life cycle that captivates the interest of biologists and environmentalists alike. Understanding the elver is essential for appreciating the complexities of aquatic habitats and the challenges these creatures face due to environmental changes.The journey of an elver begins in the Sargasso Sea, where adult eels migrate to spawn. After hatching, the larvae drift with the ocean currents for several months before reaching the coastal waters of Europe or North America. As they approach the shore, they undergo a transformation into elvers, characterized by their elongated bodies and transparent skin. This transition marks their entry into a new phase of life, as they leave the open ocean and navigate into rivers and estuaries.The significance of elvers extends beyond their biological development; they serve as an important food source for various predators, including birds and larger fish. Their presence in rivers and streams indicates a healthy ecosystem, as they contribute to the biodiversity of aquatic environments. However, the population of elvers has been declining in recent years due to factors such as overfishing, habitat loss, and pollution. Conservation efforts are crucial to protect these young eels and ensure the sustainability of their populations.One interesting aspect of elvers is their ability to adapt to different environments. As they migrate upstream, they can survive in both freshwater and brackish water. This adaptability allows them to thrive in various habitats, but it also exposes them to numerous threats. Dams and other man-made structures can obstruct their migration routes, making it difficult for them to reach suitable breeding grounds. Additionally, changes in water quality and temperature can impact their survival rates, further highlighting the need for protective measures.The fishing of elvers has become a contentious issue in some regions. In places like Maine, the demand for elvers has surged due to their high market value, particularly in Asian cuisine. This commercial interest has led to increased harvesting, raising concerns about the long-term viability of elver populations. Sustainable fishing practices and regulations are essential to balance economic interests with ecological preservation.In conclusion, the elver is more than just a juvenile eel; it represents a vital link in the aquatic food chain and a key indicator of ecosystem health. As we continue to study and understand the life cycle of elvers, it becomes increasingly clear that our actions have significant impacts on their survival. Protecting these remarkable creatures requires collective efforts from individuals, communities, and governments to ensure that future generations can appreciate the beauty and importance of elvers in our waterways. By fostering awareness and implementing conservation strategies, we can help secure a brighter future for these young eels and the ecosystems they inhabit.

在水生生物的世界中，有一种迷人的生物常常被忽视，那就是elver。elver是幼年鳗鱼，特别是欧洲鳗鱼和美洲鳗鱼的幼小阶段。这些小而纤细的鱼在生态系统中扮演着至关重要的角色，并且拥有独特的生命周期，吸引了生物学家和环境保护人士的兴趣。理解elver对于欣赏水生栖息地的复杂性以及这些生物因环境变化而面临的挑战至关重要。elver的旅程始于萨尔戈索海，成年鳗鱼迁徙到此繁殖。孵化后，幼虫随洋流漂流数月，最终到达欧洲或北美的沿海水域。当它们接近岸边时，它们会经历转变，变成elver，其特征是细长的身体和透明的皮肤。这一转变标志着它们进入新的生活阶段，因为它们离开开放的海洋，游向河流和河口。elver的重要性不仅限于其生物学发展；它们还是各种捕食者的重要食物来源，包括鸟类和大型鱼类。它们在河流和溪流中的存在表明生态系统健康，因为它们有助于水生环境的生物多样性。然而，由于过度捕捞、栖息地丧失和污染等因素，elver的数量近年来一直在下降。保护努力对于保护这些幼鳗鱼并确保其种群的可持续性至关重要。elver的一个有趣方面是它们适应不同环境的能力。当它们向上游迁移时，可以在淡水和咸水中生存。这种适应性使它们能够在各种栖息地中繁衍生息，但也使它们暴露于许多威胁之中。大坝和其他人造结构可能阻碍它们的迁徙路线，使它们难以到达合适的繁殖场所。此外，水质和温度的变化会影响它们的生存率，进一步突显了保护措施的必要性。在某些地区，捕捞elver已成为一个争议问题。在缅因州，elver的需求因其在亚洲美食中的高市场价值而激增。这种商业利益导致了捕捞的增加，引发了对elver种群长期生存能力的担忧。可持续的捕捞实践和法规对于平衡经济利益与生态保护至关重要。总之，elver不仅仅是幼年鳗鱼；它代表了水生食物链中的重要环节和生态系统健康的关键指标。随着我们继续研究和理解elver的生命周期，越来越清楚的是，我们的行为对它们的生存有重大影响。保护这些非凡的生物需要个人、社区和政府的共同努力，以确保未来几代人能够欣赏到elver在我们的水道中的美丽和重要性。通过提高意识和实施保护战略，我们可以帮助为这些幼鳗鱼及其栖息地的生态系统确保一个更光明的未来。