actinopterygian fishes

简明释义

辐亚纲鱼类

英英释义

例句

1.The fossil record shows that actinopterygian fishes 辐鳍鱼类 have existed for over 400 million years.

化石记录显示，actinopterygian fishes 辐鳍鱼类已经存在超过4亿年。

2.Researchers are cataloging the different species of actinopterygian fishes 辐鳍鱼类 found in the Amazon River.

研究人员正在对亚马逊河中发现的不同种类的actinopterygian fishes 辐鳍鱼类进行分类。

3.Conservation efforts are underway to protect the habitats of endangered actinopterygian fishes 辐鳍鱼类 species.

保护濒危actinopterygian fishes 辐鳍鱼类物种栖息地的努力正在进行中。

4.The study of actinopterygian fishes 辐鳍鱼类 has revealed important insights into evolutionary biology.

对actinopterygian fishes 辐鳍鱼类的研究揭示了进化生物学的重要见解。

5.Many aquariums feature a variety of actinopterygian fishes 辐鳍鱼类 to educate visitors about marine life.

许多水族馆展示各种actinopterygian fishes 辐鳍鱼类，以教育游客有关海洋生物的知识。

作文

The world of aquatic life is incredibly diverse, with numerous species exhibiting unique adaptations to their environments. Among these, the group known as actinopterygian fishes stands out due to their evolutionary significance and ecological diversity. Actinopterygian fishes (硬骨鱼) are characterized by their bony skeletons and are the largest class of vertebrates, encompassing over 30,000 species. This remarkable group includes familiar fish such as salmon, tuna, and goldfish, which are not only important for the ecosystem but also for human culture and economy.The evolutionary history of actinopterygian fishes can be traced back to the Devonian period, often referred to as the 'Age of Fishes.' During this time, they began to diversify into various forms, adapting to different habitats ranging from freshwater rivers to the vast oceans. Their adaptations include specialized fins, gills, and body shapes that enhance their survival in specific environments. For instance, the streamlined bodies of tuna allow them to swim at high speeds, making them efficient predators in open water.One of the fascinating aspects of actinopterygian fishes is their reproductive strategies. Many species exhibit external fertilization, where eggs and sperm are released into the water simultaneously. This method increases the chances of fertilization, although it also means that many eggs will not survive due to predation or environmental factors. Some species, like certain types of salmon, return to their natal streams to spawn, showcasing remarkable homing abilities.In terms of ecological roles, actinopterygian fishes play crucial parts in aquatic ecosystems. They serve as both predators and prey, maintaining the balance of food webs. Herbivorous species help control algae growth, while carnivorous species regulate populations of smaller fish. Additionally, they contribute to nutrient cycling within their habitats, supporting a wide range of other organisms.Human interaction with actinopterygian fishes dates back thousands of years. They are a vital source of food for billions of people globally, providing essential nutrients and economic opportunities through fishing industries. However, overfishing, habitat destruction, and pollution pose significant threats to their populations. Sustainable fishing practices and conservation efforts are crucial to ensure the survival of these species and the health of marine ecosystems.Moreover, actinopterygian fishes have also become popular in the aquarium trade, with many species being kept as pets. This interest has led to increased awareness about their care and conservation needs. Enthusiasts often engage in breeding programs to preserve rare species and educate others about the importance of aquatic biodiversity.In conclusion, actinopterygian fishes are an essential component of our planet's biodiversity. Their evolutionary success, ecological roles, and significance to human societies highlight the need for continued research and conservation efforts. Understanding and protecting these remarkable creatures will ensure that future generations can appreciate the beauty and complexity of aquatic life. As we strive to maintain healthy ecosystems, recognizing the value of actinopterygian fishes is paramount for a sustainable future.

水生生物的世界是极其多样化的，许多物种展现出独特的适应环境的能力。在这些生物中，被称为actinopterygian fishes（硬骨鱼）的群体因其进化意义和生态多样性而脱颖而出。Actinopterygian fishes是以其骨骼为特征的，属于脊椎动物中最大的类别，涵盖了超过30,000种物种。这个显著的群体包括熟悉的鱼类，如鲑鱼、金枪鱼和金鱼，这些鱼类不仅对生态系统重要，也对人类文化和经济至关重要。Actinopterygian fishes的进化历史可以追溯到泥盆纪，通常被称为“鱼类的时代”。在这一时期，它们开始向各种形式多样化，适应不同的栖息地，从淡水河流到广阔的海洋。它们的适应性包括专门的鳍、鳃和身体形状，以增强它们在特定环境中的生存能力。例如，金枪鱼的流线型身体使它们能够以高速游泳，成为开放水域中高效的捕食者。Actinopterygian fishes的一个迷人方面是它们的繁殖策略。许多物种表现出外部受精，即同时释放卵子和精子到水中。这种方法增加了受精的机会，尽管这也意味着许多卵子由于捕食或环境因素而无法存活。一些物种，如某些类型的鲑鱼，会返回出生的小溪产卵，展示出惊人的归巢能力。在生态角色方面，actinopterygian fishes在水生生态系统中发挥着至关重要的作用。它们既是捕食者也是猎物，维持着食物链的平衡。草食性物种有助于控制藻类生长，而肉食性物种则调节小鱼的种群。此外，它们还促进栖息地内的养分循环，支持其他各种生物。人类与actinopterygian fishes的互动可以追溯到数千年前。它们是全球数十亿人重要的食物来源，为人们提供了必需的营养和通过渔业产业带来的经济机会。然而，过度捕捞、栖息地破坏和污染对它们的种群构成了重大威胁。可持续的捕鱼实践和保护工作对于确保这些物种的生存和海洋生态系统的健康至关重要。此外，actinopterygian fishes在水族馆贸易中也变得越来越受欢迎，许多物种被作为宠物饲养。这种兴趣提高了人们对其照顾和保护需求的意识。爱好者们常常参与繁殖项目，以保护稀有物种，并教育他人认识水生生物多样性的重要性。总之，actinopterygian fishes是我们星球生物多样性的一个重要组成部分。它们的进化成功、生态角色以及对人类社会的重要性突显了持续研究和保护工作的必要性。理解和保护这些非凡的生物将确保未来几代人能够欣赏水生生命的美丽和复杂性。当我们努力维护健康的生态系统时，认识到actinopterygian fishes的价值对于可持续的未来至关重要。