diadromous

简明释义

英[daɪˈædrəməs]美[daɪˈædrəməs]

adj. 有扇状叶脉的；海水和淡水两栖的

英英释义

单词用法

同义词

反义词

例句

1.These fish could be categorized into four types, including estuarine fishes, marine fishes, diadromous fishes and of freshwater fishes.

这些鱼类分为4个主要生态类型，包括河口性鱼类、近海鱼类、江海洄游型鱼类和淡水鱼类。

2.These fish could be categorized into four types, including estuarine fishes, marine fishes, diadromous fishes and of freshwater fishes.

这些鱼类分为4个主要生态类型，包括河口性鱼类、近海鱼类、江海洄游型鱼类和淡水鱼类。

3.The study focused on the migration patterns of diadromous 洄游的 fish in relation to climate change.

这项研究关注了与气候变化相关的洄游的 diadromous 鱼类的迁徙模式。

4.The diadromous 洄游的 nature of eels makes them particularly vulnerable to barriers in rivers.

鳗鱼的洄游的 diadromous 特性使它们特别容易受到河流中的障碍物的影响。

5.The life cycle of the salmon is a classic example of a diadromous 洄游的 fish, as it migrates from freshwater to the ocean and back.

鲑鱼的生命周期是一个经典的洄游的 diadromous 鱼类的例子，因为它从淡水迁移到海洋，然后再返回。

6.Understanding the behavior of diadromous 洄游的 species can help in conservation efforts.

理解洄游的 diadromous 物种的行为有助于保护工作。

7.Many diadromous 洄游的 species are affected by changes in water quality and habitat availability.

许多洄游的 diadromous 物种受到水质和栖息地可用性变化的影响。

作文

The term diadromous refers to fish species that migrate between freshwater and saltwater environments during their life cycle. This fascinating behavior is observed in various species, including salmon and eels, which exemplify the incredible adaptability of aquatic life. Understanding the diadromous lifestyle provides insight into the ecological dynamics of rivers and oceans, highlighting the importance of these migratory patterns for maintaining healthy fish populations and ecosystems. For instance, salmon are born in freshwater rivers, where they spend the early stages of their lives. As they mature, they migrate to the ocean, where they grow and develop further. After spending a few years in the salty waters, they return to their natal rivers to spawn, completing a remarkable journey that can cover thousands of miles. This migration is not just a physical journey; it is a critical part of their life cycle that ensures the continuation of their species. The diadromous nature of salmon illustrates the interconnectedness of different aquatic habitats and the need for conservation efforts to protect both freshwater and marine environments.Eels, on the other hand, have an equally intriguing diadromous life cycle. They are born in the Sargasso Sea, a region of the Atlantic Ocean, and then migrate to freshwater rivers and lakes across North America and Europe. After spending many years in these freshwater habitats, adult eels make a long journey back to the Sargasso Sea to spawn. This long-distance migration is fraught with challenges, including navigation through man-made barriers like dams and pollution in rivers. The diadromous nature of eels highlights the vulnerability of migratory species to environmental changes and human activities.The study of diadromous fish is crucial for understanding biodiversity and ecosystem health. The migration patterns of these species are influenced by numerous factors, including water temperature, salinity, and food availability. Changes in these environmental conditions due to climate change can significantly impact diadromous species. For example, warmer water temperatures may affect the timing of migrations or the availability of spawning habitats, leading to declines in fish populations.Moreover, the conservation of diadromous species is vital for sustaining local economies that depend on fishing and tourism. Many communities rely on healthy fish populations for their livelihoods, and the decline of diadromous fish can have serious economic repercussions. Therefore, it is essential to implement effective management strategies that consider the entire life cycle of these species, from their spawning grounds to their feeding areas in the ocean.In conclusion, the concept of diadromous fish encapsulates the intricate relationships between aquatic ecosystems and the species that inhabit them. By studying and protecting these migratory species, we can ensure the health of both freshwater and marine environments for future generations. The challenges faced by diadromous fish serve as a reminder of the delicate balance within our ecosystems and the importance of sustainable practices in preserving our natural resources.

“diadromous”这个术语指的是那些在其生命周期中在淡水和盐水环境之间迁移的鱼类物种。这种迷人的行为在多种物种中都有观察到，包括鲑鱼和鳗鱼，它们体现了水生生命的惊人适应能力。理解diadromous的生活方式提供了对河流和海洋生态动态的洞察，突显了这些迁徙模式在维持健康的鱼类种群和生态系统中的重要性。例如，鲑鱼在淡水河流中出生，早期生命阶段都生活在那里。随着它们成熟，便会迁移到海洋，在那里进一步生长和发育。在咸水中生活几年后，它们又返回到出生的河流产卵，完成一段可以覆盖数千英里的非凡旅程。这种迁徙不仅仅是一次物理上的旅程；它是其生命周期中至关重要的一部分，确保了物种的延续。鲑鱼的diadromous特性说明了不同水生栖息地之间的相互联系，以及保护淡水和海洋环境的必要性。另一方面，鳗鱼也有着同样引人入胜的diadromous生命周期。它们出生在大西洋的萨加索海，然后迁移到北美和欧洲的淡水河流和湖泊。在这些淡水栖息地生活多年后，成年的鳗鱼又长途跋涉回到萨加索海产卵。这一长途迁徙充满了挑战，包括通过人工障碍如水坝以及河流中的污染。鳗鱼的diadromous特性突显了迁徙物种对环境变化和人类活动的脆弱性。对diadromous鱼类的研究对于理解生物多样性和生态系统健康至关重要。这些物种的迁徙模式受到多种因素的影响，包括水温、盐度和食物供应。由于气候变化，这些环境条件的变化可能会显著影响diadromous物种。例如，水温升高可能会影响迁徙的时机或产卵栖息地的可用性，从而导致鱼类种群的下降。此外，保护diadromous物种对维持依赖渔业和旅游业的地方经济至关重要。许多社区依赖健康的鱼类种群谋生，而diadromous鱼类的减少可能会带来严重的经济后果。因此，实施有效的管理策略，考虑到这些物种的整个生命周期，从它们的产卵场到它们在海洋中的觅食区域，是至关重要的。总之，diadromous鱼类的概念概括了水生生态系统与其栖息物种之间复杂的关系。通过研究和保护这些迁徙物种，我们可以确保未来几代人淡水和海洋环境的健康。这些diadromous鱼类所面临的挑战提醒我们生态系统内的微妙平衡，以及在保护自然资源方面可持续实践的重要性。