Why estuaries are important . 
environmental values.
Estuaries offer crucial environmental services and benefits.Take, for instance, the following examples:
provide a variety of habitats, such as seagrass meadows, mangroves, saltmarshes, mudflats, sandflats, rocky shorelines, rocky reefs, oyster reefs, sandy shorelines and beaches, and deep open water areas; support an incredible diversity of organisms, such as fish, shore birds, prawns, crabs, shellfish, marine mammals, reptiles, algae, and specialized plant species; act as breeding places and nurseries
Ecosystem services
Estuaries operate as natural filters. During runoff from the land, water from rivers and streams may transport sediments, nutrients, and pollutants into estuaries. Estuaries have the ability to naturally filter out some of these substances, therefore some of them may be retained in estuaries. The biodiversity of estuaries and the land they drain are at danger when runoff from the land contains excessive levels of silt, fertilizers, and contaminants.
This type of natural filtration can take place in riparian areas, which are defined as the vegetated areas that are located adjacent to the edge of a waterway. In these areas, the vegetation and soils work together to act as a barrier for sediment and nutrients that are carried by runoff from the surrounding land.
When rivers, creeks, and streams flow into estuaries, the speed of the currents slows down, which causes sediment to be deposited in various regions of the estuary. This indicates that the water that flows to the downstream regions of estuaries and eventually into the ocean may be much clearer and cleaner. People who interact with waterways and the shore, as well as marine life, benefit when the water is clear and clean.
Cultutarl values 
Estuaries have been used by indigenous coastal societies as sources of resources for thousands of years, and they continue to play a significant role in the life of indigenous coastal people today.
This lengthy custom included making use of estuaries in an environmentally responsible manner so as to guarantee that they continued to be fruitful.
In the day-to-day life of Aboriginal coastal people, the plants and animals that lived along the shore and in estuaries played a significant role. For instance, fishing and the harvesting of edible shellfish and crustaceans for human consumption are traditional kinds of aquaculture that may be practiced in estuaries. This practice is being carried out today in the form of traditional fishing as well as other cultural and ceremonial applications.
Aboriginal coastal communities have inherent cultural rights, duties, and obligations to care for coastal and marine habitats. These rights, liabilities, and obligations are to protect coastal and marine environments. A vital part in ensuring the health of both individuals and communities is the maintenance of the knowledge and practices associated with coastal ecosystems.
Social values
Estuaries are one of the state’s most valuable natural resources and contribute significantly to the state’s overall quality of life.
These are the following:
estuaries, due of their locations on historical transit and maritime routes, have grown as urban centers, and they continue to operate as focus areas for local trade and tourism today. This development has led to estuaries acting as focal points for local communities.
80 percent of the state’s population resides in the coastal zone, which means that many people live and recreate in the vicinity of an estuary. This proximity provides opportunities for recreational activities such as boating, fishing, swimming, scuba diving, windsurfing, and bird watching, as well as aesthetic benefits and the health benefits that come from interaction with their natural open spaces.
Economic values 
Estuaries give support for:
recreational fishing in estuaries, which is estimated to be worth $500 million per year, with the main target species dependent on estuarine habitats at some stage of their lifecycle public and private infrastructure, which is essential for shipping, transportation, and industry, for example, all of our large harbors and ports and most of the smaller ones are estuaries the build out of commercial fishing and aquaculture of oysters, which is worth over $80 million per year in New South Wales commercial fishing and aquaculture of oysters in New South Wales
F.A.Q why estuaries and intertidal zone important to living things and nonliving things
1. Why is it so vital to have an intertidal zone?
During the precarious early phases of development for a great number of animals, the intertidal zone serves as a protective haven and a source of sustenance, playing the role of a nursery for many species that live deeper in the ocean. Intertidal species are an essential indication of the general health of the marine environment as well as a crucial link in the food chain that exists in the marine ecosystem.
2. How do the organisms that call intertidal zones and estuaries home either their home or their habitat?
Crabs, sea stars, snails, seaweed, and algae may all be found living in the intertidal zones of rocky shorelines. By securing themselves to the rocks, organisms such as barnacles, mussels, and kelps are able to thrive in this habitat. When the tide is low, barnacles and mussels are able to maintain saltwater within their closed shells, which prevents them from drying up.
Conclusion paragraph:
– The estuary and the intertidal zone are important to both living things and nonliving things. Plants and animals that live in these areas provide food and habitat for other plants and animals, as well as humans. The estuary is also a vital part of our economy, providing jobs and resources for people. We need to protect these areas so that they can continue to support life – both plant and animal – as well as human livelihoods.