This study will examine the various importances of seagrass and to what extent they are vital for the survival of species within their ecosystem. In addition to this, the role of seagrass in important ecosystem processes will be examined. The abundance of coastal regions are closely linked with seagrasses as they greatly contribute to productivity. Seagrass meadows are highly productive and are ideal for nurseries and providing a relatively safe habitat and shelter from predators (Hughes et al. (2008).
Beginning in Jamaica Bay and extending to Montauk Point, Long Islands salt marches help remove toxic chemicals that are caused by pollution, thus making them a vital part of the eco-system. The Salt Marshes contain different types of grasses that grow out of the water and along the water's edge. This grass can be seen when the tide is low and is covered by water when the tide comes in. This grass helps hold the soil together by dispersing any wave energy and creating a breeding ground for many important marine animals. Also, the plants act as a natural filter, removing any chemicals that might be in the seawater.
4-5). Fresh water is always available from natural springs and lakes (Welsby, 1917, p. 120) (Figure C1 &C2) (Map B2). Wind and salt tolerant plants grow along frontal dunes (pigface, goat's foot), eucalypts dominate high dunes in open forest with acacia, banksia, tea-trees, grasses and creepers. Mangroves dominate tidal mudflats, seagrass beds provide food for dugongs. Roots, seeds, nuts, fungi, fruit and berries abound in forest, rainforest, fresh and salt water wetlands (Knight, Barry, McFarland, & Neal.
Wetland is an area which is a junction between land and water. Wetland is just like the kidney of human. It filters the pollutants and regulates the surface runoff so as to prevent the flooding of mangroves. It has bled many marine animals, such as Dwarf Eel Grass, Sesarmas, Mudskippers, Magpie Flat...etc. Therefore, it has high ecological value.
When good practices are used, it is possible to farm seafood in a way that has very little impact to the environment. Such operations limit habitat damage, disease, escapes of farmed fish and the use of wild fish as feed. (https://www.seafoodwatch.org/ocean-issues/aquaculture, 2017) The environmental impact of fish farming varies widely, depending on the species being farmed, the methods used and where the farm is located. When good practices are used, it is possible to farm seafood in a way that has very little impact to the environment. Such operations limit habitat damage, disease, escapes of farmed fish and the use of wild fish as feed.
A major function it provides is that it filters out toxic wastes and pollutants from stormwater runoff before they reach the Santa Monica Bay. It is "a coastal plain, and acts as a flood plain for the surrounding area" (FOBW Information folder 1998: Fact Sheet). Ballona is an integral part of the Pacific flyaway, providing vital feeding and nesting habitat for over 185 species of birds, including some on the federal endangered species list. The southwestern willow flycatcher, an endangered species, was just recently seen by developers in an area cleared for construction. Ballona is no doubt a welcomed refuge to all species, both flora and fauna, from the industrial landscape of Los Angeles.
In the early years of this decade, an... ... middle of paper ... ...iences, 8 (4), pp. 673--685. Healy, M. G. and Hickey, K. R. (2002) Historic land reclamation in the intertidal wetlands of the Shannon estuary, western Ireland, Journal of Coastal Research, 36 (Special Issue), pp. 365--373. Karatayev, A., Burlakova, L. E. and Padilla, D. K. (2002) Impacts of zebra mussels on aquatic communities and their role as ecosystem engineers.
The big cities in Australia – Melbourne, Sydney, Canberra, Brisbane and Perth – are all located in the south, and all in the southeast except for Perth. We will focus on the southeastern coastal area when talking about this temperate climate zone, as the vast majority of Australians live in this area. The climate here is very moist and mild; although not as wet as the tropical north, receiving anywhere from 50 to 320 cm of rain annually, but much wetter in comparison to the Outback. The average maximum temperature in the southeast ranges from 12 to 27°C, which is more livable compared to the rest of the continent. To understand just how these climate zones function, we must look at the subtropical high that exists in the southern “horse latitudes” of around 30°S.
The fronds of the nypa palm are used for thatching and basket weaving. Various barks are used for tanning, pneumatophores (peg roots) make good fishing floats while the wood from yellow mangroves (Ceriops species) has a reputation for burning even when wet. Worldwide there are about 65 recognised species of mangrove plants belonging to 20 families. Up to 35 mangrove species and three hybrids are known to occur in Queensland although figures can change as the definition of a mangrove is not clear and some plants such as cottonwood are regarded as mangrove by some and not by others. A study of Cairns mangroves found 24 mangrove tree and shrub species while a further 18 species of flowering plants were growing among the mangroves or on salt marshes.
These plants have overcome the harsh conditions from which they live in. One of the most obvious adaptations is the modified root structures that not only help support the plant in the muddy substrate, but may aid in oxygen intake in some species. Another notable adaptation that mangrove plants exhibit is their modified reproductive structures called propagules. These seeds actually begin development while still attached to the parent tree. Mangroves also provide important services such as filtering out toxins in outgoing streams that would normally damage coral reefs.