copepod

简明释义

英[ˈkəʊpɪpɒd]美[koʊpəˌpɑːd]

n. 桡足动物

adj. 桡脚类动物的

英英释义

单词用法

同义词

反义词

例句

1.They included cold-blooded organisms that ranged in average lifespan from 11.6 days for the copepod (small crustaceans) Arcartia tonsa to 74 years for the pearl mussel (Margaritifera margaritifera).

他们包括平均寿命只有11.6天的桡脚类的动物（一种小的甲壳类动物）非洲的汤氏纺锤水蚤，和可以存活74年的珍珠胎贝(珠母贝)。

2.The results indicated that different copepods at same natural acclimated temperature and specific copepod at different initial acclimated temperature had different thermal tolerance capability.

结果表明，不同生物在相同适温条件下和同种生物在不同适温条件下的热耐受能力均存在差异。

3.They included cold-blooded organisms that ranged in average lifespan from 11.6 days for the copepod (small crustaceans) Arcartia tonsa to 74 years for the pearl mussel (Margaritifera margaritifera).

他们包括平均寿命只有11.6天的桡脚类的动物（一种小的甲壳类动物）非洲的汤氏纺锤水蚤，和可以存活74年的珍珠胎贝(珠母贝)。

4.Several significant changes were found in the composition of the rotifer, cladoceran and copepod assemblages.

许多重要的变化被发现在轮虫，枝角类和桡足类群体的组成中。

5.The results showed that silver carp could control bloom of both cyanobacteria and pelagic copepod.

结果表明，鲢鱼对蓝藻和桡足类浮游动物均具有一定的抑制作用；

6.The present paper deals with the biology of the parasitic copepod Lernaea poly-morpha and the acquired immunity on the part of the hosts after its infeetion on silver carp and big-head.

本文对鲢、鳙锚头鳋的生物学、病后获得免疫以及药物治疗进行了探讨。

7.The species of cladoceran and copepod in Shiquan River are fewer. From the specimens we observed 5 families 8 genus 18 species of cladoceran and the dominant species are A.

狮泉河的枝角类和桡足类种类很少，所采样品仅检出枝角类5科8属18种，优势种类为尖额溞和盘肠溞；

8.The marine biologist studied the population dynamics of the copepod 桡足类动物 in the coastal waters.

这位海洋生物学家研究了沿海水域中copepod 桡足类动物的种群动态。

9.The copepod 桡足类动物 is an important food source for many fish species.

copepod 桡足类动物是许多鱼类的重要食物来源。

10.Scientists use copepods 桡足类动物 to study the effects of climate change on marine ecosystems.

科学家们使用copepods 桡足类动物来研究气候变化对海洋生态系统的影响。

11.In the plankton sample, the researcher found a variety of copepods 桡足类动物 that are crucial for the marine food web.

在浮游生物样本中，研究人员发现了多种对海洋食物网至关重要的copepods 桡足类动物。

12.The abundance of copepods 桡足类动物 can indicate the health of the aquatic environment.

在水生环境中，copepods 桡足类动物的丰度可以指示水体的健康状况。

作文

In the vast and intricate web of marine ecosystems, one often overlooked yet crucial component is the copepod. These tiny crustaceans, which typically measure just a few millimeters in length, play a significant role in aquatic food webs. Found in both freshwater and saltwater environments, copepods are among the most abundant zooplankton species in the world. Their presence can be seen in oceans, lakes, and rivers, where they serve as a primary food source for many larger organisms, including fish, whales, and even seabirds.The importance of copepods extends beyond their role as prey. They are also vital in nutrient cycling within aquatic ecosystems. By feeding on phytoplankton, which are microscopic plants that form the base of the marine food chain, copepods help regulate phytoplankton populations. This regulation is essential for maintaining the balance of the ecosystem, as excessive phytoplankton growth can lead to harmful algal blooms that deplete oxygen levels in the water and harm other marine life.Moreover, copepods contribute significantly to the carbon cycle. When they consume phytoplankton, they convert the organic matter into particulate organic carbon, which can sink to the ocean floor when they die or excrete waste. This process, known as the biological pump, is crucial for sequestering carbon dioxide from the atmosphere and mitigating climate change. Thus, copepods not only support marine life but also have implications for global climate patterns.Research has shown that the abundance and diversity of copepods can be indicators of environmental health. Changes in their populations can signal shifts in water quality, temperature, and nutrient levels, making them valuable bioindicators for scientists studying the impacts of climate change and human activity on aquatic ecosystems. For example, a decline in copepod populations may indicate increased pollution or habitat degradation, prompting further investigation into the health of the ecosystem.Despite their small size, copepods exhibit fascinating behaviors and adaptations. Many species have developed specialized feeding mechanisms that allow them to efficiently capture phytoplankton in the water column. Some copepods are also capable of rapid swimming, using their antennae to propel themselves through the water, which helps them evade predators. Their ability to reproduce quickly in favorable conditions contributes to their resilience and adaptability in changing environments.In conclusion, copepods are remarkable creatures that play an essential role in the health and stability of aquatic ecosystems. Their contributions to food webs, nutrient cycling, and carbon sequestration highlight their importance in both local and global contexts. As we continue to explore and understand the complexities of marine life, it is crucial to recognize the significance of these tiny crustaceans and advocate for the protection of their habitats. By doing so, we can help ensure the sustainability of our oceans and the myriad of species that depend on them. The study of copepods serves as a reminder that even the smallest organisms can have a profound impact on the world around us.

在广阔而复杂的海洋生态系统中，一个常被忽视但至关重要的组成部分是桡足类动物。这些微小的甲壳类动物，通常只有几毫米长，在水生食物网中扮演着重要角色。它们分布在淡水和盐水环境中，是世界上最丰富的浮游动物物种之一。桡足类动物的存在可以在海洋、湖泊和河流中看到，它们作为许多大型生物（包括鱼类、鲸鱼甚至海鸟）的主要食物来源。桡足类动物的重要性不仅体现在它们作为猎物的角色上。它们在水生生态系统中的营养循环中也至关重要。通过以浮游植物为食，浮游植物是形成海洋食物链基础的微观植物，桡足类动物帮助调节浮游植物的种群。这种调节对于维持生态系统的平衡至关重要，因为浮游植物的过度生长可能导致有害藻类暴发，从而耗尽水中的氧气并危害其他海洋生命。此外，桡足类动物对碳循环也有重要贡献。当它们消耗浮游植物时，它们将有机物转化为颗粒有机碳，这些碳在它们死亡或排泄废物时会沉入海底。这个过程被称为生物泵，对于从大气中捕获二氧化碳和缓解气候变化至关重要。因此，桡足类动物不仅支持海洋生命，还对全球气候模式产生影响。研究表明，桡足类动物的丰度和多样性可以作为环境健康的指标。它们种群的变化可以信号水质、温度和营养水平的变化，使它们成为科学家研究气候变化和人类活动对水生生态系统影响的宝贵生物指示物。例如，桡足类动物种群的下降可能表明污染或栖息地退化的加剧，促使进一步调查生态系统的健康状况。尽管体型微小，桡足类动物却表现出迷人的行为和适应性。许多物种已经发展出专门的捕食机制，使它们能够有效地捕捉水柱中的浮游植物。一些桡足类动物还能够快速游动，利用其触角在水中推进，这有助于它们躲避捕食者。它们在良好条件下迅速繁殖的能力使它们在变化的环境中具有韧性和适应性。总之，桡足类动物是令人惊叹的生物，在水生生态系统的健康和稳定中发挥着重要作用。它们对食物网、营养循环和碳封存的贡献突显了它们在地方和全球背景下的重要性。随着我们继续探索和理解海洋生命的复杂性，认识到这些微小甲壳类动物的重要性并倡导保护它们的栖息地至关重要。通过这样做，我们可以帮助确保我们的海洋及依赖于它们的无数物种的可持续性。对桡足类动物的研究提醒我们，即使是最小的生物也能对周围世界产生深远的影响。