What Is An Estuary? When freshwater and saltwater combine, the water becomes brackish which means the water is slightly salty.. See more. estuary definition: The definition of an estuary is an area where one or more rivers meet an ocean or sea. Estuaries are one of the most productive ecosystems on earth because of the mixing of nutrients from land and sea. Estuary: a part of a body of water that extends beyond the general shoreline. When the rate of freshwater supply of the river forming the estuary is lower than the rate of evaporation of the water, little freshwater mixes into the estuary so that it becomes highly saline. The land, rivers and streams that provide vital nourishment and fresh water for an estuary. : Birds. The problem of defining an estuary and delineating the area of estuarine oceanography has concerned me since I first started to study these bodies of water fifteen years ago. A river basin is the land that water flows across or under on its way to a river. An estuary is a coastal area where fresh water from rivers and streams mixes with salt water from the ocean. Such estuaries are found in areas with an arid climate. An estuary is an area where a freshwater river or stream meets the ocean. An estuary is a partially enclosed body of water formed by fresh water from rivers flowing into and mixing with ocean saltwater. noun estuaries.

Marshes and mangroves provide an essential food source for a variety of birds. An estuary is a partially enclosed body of water where fresh and salt water meets. Types of Estuaries. What is an estuary: Physical Viewpoint. Author. A view of an estuary from the air is usually an interesting sight: many estuaries meander (curve and bend) to find their way to the sea. brackish water. WHAT IS AN ESTUARY? Some of the oldest continuous civilizations have flourished in estuarine environments (for example, the Tigris and Euphrates rivers, … Although the definition of an estuary varies considerably, in the simplest terms, it is a partially enclosed, coastal, brackish water body.

Bays, marshes, swamps, and inlets can all have estuaries. It is common for estuaries to suffer from degradation from soil erosion, overgrazing, drainage and filling of wetlands. This combination creates a different and unique ecosystem, where many different species live (and grow) (fish, reptiles, birds and mammals such as the manatee). The salinity of water in the ocean averages about 35 parts per thousand (ppt). The river becomes wider and wider and flows slowly to the ocean. One of them is rising sea levels. The fresh water is often prevented from flowing into the open ocean by land masses such as peninsulas, islands, or surrounding salt marshes. On average, estuaries are biologically more productive than either the adjacent river or the sea, because they have a special kind of water circulation that traps plant nutrients and stimulates primary production. Any posted items may not be received and processed in a timely manner due to temporary relocation and limitation in postal deliveries. 1. drowned river valley 2. delta 3. lagoon. river basin. 1. estuary - the wide part of a river where it nears the sea; fresh and salt water mix. Estuary definition, that part of the mouth or lower course of a river in which the river's current meets the sea's tide.

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