infauna

简明释义

英[ɪnˈfɔːnə]美[ˈɪnˌfɔːnə]

n. [动] 底层水生动物；[海洋] 海底动物

复 数 i n f a u n a s 或 i n f a u n a e

英英释义

单词用法

同义词

反义词

例句

1.The diversity of infauna can indicate the overall biodiversity of a marine habitat.

底栖动物的多样性可以指示海洋栖息地的整体生物多样性。

2.The study of infauna helps marine biologists understand the health of ocean ecosystems.

对底栖动物的研究帮助海洋生物学家了解海洋生态系统的健康状况。

3.Sampling infauna in coastal areas can reveal the impact of pollution on marine life.

在沿海地区采样底栖动物可以揭示污染对海洋生物的影响。

4.Researchers often use infauna as bioindicators to assess environmental changes.

研究人员通常使用底栖动物作为生物指示物来评估环境变化。

5.Certain species of infauna play a crucial role in nutrient cycling within the sediment.

某些种类的底栖动物在沉积物的营养循环中发挥着至关重要的作用。

作文

The study of marine ecosystems is a fascinating field that reveals the complexity and diversity of life beneath the surface of our oceans. One important aspect of these ecosystems is the role played by organisms known as infauna (底栖动物). These creatures inhabit the sediment on the ocean floor, playing a crucial role in the overall health of marine environments. In this essay, I will explore the significance of infauna in marine ecosystems, their ecological functions, and the threats they face due to human activities.Infauna are typically small, burrowing organisms that live within the sediment of the sea bed. They include various species such as clams, worms, and other mollusks. These organisms contribute significantly to the biodiversity of marine habitats. By living in the sediment, infauna help to aerate the soil and facilitate the movement of water and nutrients through the sediment layers. This process is essential for maintaining the health of the ecosystem, as it allows for the exchange of gases and nutrients that support other marine life.Moreover, infauna play a vital role in the food web of marine environments. Many fish and larger predators rely on these organisms as a primary food source. For example, flatfish and certain species of crabs will hunt for infauna buried in the sand or mud. This connection highlights the importance of infauna not only for their immediate environment but also for the broader marine food chain.In addition to their role in the food web, infauna also contribute to nutrient cycling within marine ecosystems. As these organisms feed on organic matter in the sediment, they break it down into simpler compounds that can be utilized by other organisms. This decomposition process is critical for recycling nutrients, making them available for primary producers, such as phytoplankton, which form the foundation of the marine food web.However, infauna face numerous threats from human activities. Overfishing, habitat destruction, and pollution are just a few of the challenges that impact these essential organisms. For instance, bottom trawling, a common fishing method, can destroy the delicate habitats where infauna thrive. Additionally, pollution from agricultural runoff and industrial waste can lead to harmful algal blooms that deplete oxygen in the water, further threatening the survival of infauna and other marine life.Conservation efforts are essential to protect infauna and their habitats. Implementing sustainable fishing practices, restoring damaged marine environments, and reducing pollution are all critical steps in ensuring the survival of these organisms. Public awareness campaigns can also play a significant role in educating people about the importance of infauna and the need to safeguard marine ecosystems.In conclusion, infauna (底栖动物) are integral components of marine ecosystems, contributing to biodiversity, nutrient cycling, and the food web. Their presence indicates a healthy marine environment, while their decline can have cascading effects on the entire ecosystem. As we continue to explore and understand the complexities of marine life, it is imperative that we take action to protect these vital organisms and their habitats for future generations.