They help stabilize the global climate. The salinity gradient and the changes in tides, fresh water and accompanying flux in nutrients within estuaries create a variety of habitats that support a diverse food web. Thousands of species of birds, mammals, fish and other wildlife live in and around estuaries. Outline two reasons why the species within pioneer communities in Figure 1 are more likely to be r-strategists than K-strategists. The former means that sunlight penetrates all the way to the bottom providing energy for lots of marine plants. A. In pre-European times, estuaries were favourite places for Māori to gather – particularly to harvest and enjoy kaimoana. “Estuaries are fragile ecosystems that are very susceptible to disturbances” (NOAA, 2012). Estuaries also serve as nursery areas where fish and shellfish can grow and mature. 15N.2.SL.TZ0.5a: Which of the following best describes why estuaries are important resources? Why are estuaries such rich, productive environments? Estuaries are considered as highly productive bodies of water because due to the seawater and freshwater are in it, the nutrients it provide to the organisms are high. So the correct answer is letter C. provide a habitat for many organisms. 19M.2.SL.TZ0.1b: Outline two reasons why the climax community in Figure 1 is more stable than the intermediate community. 19N.1.SL.TZ0.1d: Outline why estuaries are highly productive ecosystems. Estuaries are very biologically productive. As well as being one of the most productive ecosystems, estuaries are also one of the most threatened ecosystems (NOAA, 2012). Extremely rich in organic matter and nutrients. Why are estuaries so important? Today, there are major settlements near estuaries in Whangārei, Auckland, Tauranga, Napier, Wellington, Nelson, Christchurch, Dunedin and Invercargill. Estuaries provide places for recreational activities and scientific studies. D. They are among the most productive … Also consider the following: Estuaries produce more food per acre than the most productive mid-western farmland; Estuaries are among the most biologically productive ecosystems on the planet. The Chesapeake Bay, the ACE Basin in South Carolina, and San Francisco Bay in California, are just a few of the 28 reserves that can be found near you . Photosynthesis occurs throughout the water column and on the sediment surface – very productive. C. They prevent weathering of rock from slopes and cliffs. Because they are shallow and nutrient-rich. Therefore Estuaries are by born high productive zone. Today, estuaries are a tremendous economic resource which provides jobs and resources to coastal communities. Estuaries are an irreplaceable natural resource that needs to be carefully monitored so that the animals and plants that depend on them are thriving. Animals rely on estuaries for food and breeding and humans rely on estuaries for food, work, and fun (NOAA, 2012). Because they are biologically productive, estuaries attract migratory birds as places to feed and stop over during annual migrations. To learn more check out NOAA: Why estuaries are so important. There is natural cleaning and recycling system in all estuaries; so no possible of the degradation of nutrients. B. Estuaries are important for many reasons. People like to live near estuaries. These studies provide strong scientific knowledge to help us create healthy, productive estuaries. 4 times more productive in plant matter than a rye grass pasture and 20 times more productive than the open sea. Estuaries are among the most productive environments on earth. They are the world's richest sources of precious metals. More than two thirds of the fish and shellfish we eat spend some part of …
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