Aquatic environment

Aquatic Environment refers to the water-based ecosystems that encompass marine and freshwater environments. These environments are home to a diverse range of species and are crucial for the survival of many different forms of life on Earth.

Overview

The aquatic environment is divided into two main categories: marine environment and freshwater environment. The marine environment includes oceans, seas, and saltwater marshes, while the freshwater environment includes rivers, lakes, and freshwater marshes. Each of these environments has unique characteristics and supports a variety of different species.

Marine Environment

The marine environment is the largest aquatic environment, covering over 70% of the Earth's surface. It is characterized by high salt content, with the average salinity being about 35 parts per thousand. The marine environment is home to a diverse range of species, from microscopic plankton to the largest animal on Earth, the blue whale.

Freshwater Environment

The freshwater environment includes rivers, lakes, ponds, and wetlands. These environments are characterized by their low salt content, usually less than 0.5 parts per thousand. Freshwater environments are home to a wide variety of species, many of which are not found anywhere else. This includes a wide range of fish species, as well as amphibians, reptiles, and many types of birds and mammals.

Importance of Aquatic Environments

Aquatic environments play a crucial role in supporting life on Earth. They provide habitat for a wide range of species, many of which are not found anywhere else. In addition, they play a key role in the Earth's climate system, helping to regulate temperature and weather patterns. Aquatic environments also provide a range of services to human societies, including food, recreation, and water for drinking and irrigation.

Threats to Aquatic Environments

Aquatic environments are facing a range of threats, including pollution, overfishing, climate change, and habitat destruction. These threats are causing declines in many aquatic species and are disrupting the functioning of these crucial ecosystems.

See Also

• Marine biology
• Freshwater biology
• Aquatic ecology
• Water pollution
• Climate change