Overexploitation of local fisheries F isheries are a vital employment activity to hundreds of thousands of families on the coast. The predominant cause of degradation detected in these microfossil records was nutrient enrichment and the resulting symptoms of eutrophication, including hypoxia.
Several researchers have also emphasized the importance of a paleoecological approach Gorham et al. There are many projects underway by such government departments and individual companies to map marine and coastal habitats.
At a lower scale, another problem is the uncontrolled fires used to prepare land for agricultural activities or to remove forest for the development of stock rearing areas. When we emit chemicals such as persistent organic pollutants, heavy metals such as lead, and nutrients such as nitrogen into the air, much of that ends up in the ocean through rainfall.
Offshore fishing grounds, some of the only areas on earth from where fish catches are increasing, are also open to plundering, often by industrial foreign fleets.
Loss of revenue to the governments Coastal regions are major tourist attraction sites. A few larger species, known to have been abundant one hundred years ago, are currently so rare that there is a very real possibility that they may completely vanish from the region. Serious oil spills have already occurred around Mombasa and Maputo, damaging nearby mangrove forests and beaches.
Here are the various causes of marine habitat loss and destruction. Microfossils enable reconstruction of the ecological history of the past — years or even more, and, in conjunction with statistical modeling approaches using independent proxy records of climate and human-induced environmental changes, future research will enable workers to better address Shifting Baseline Syndrome and separate anthropogenic impacts from background natural variability.
Major pressure areas for degradation — a Major shipping corridors result in direct damage to the marine environment by anchor drag and the need for dredging activities to maintain shipping channels.
Limnology and Oceanography, ,42, The construction of coastal housing can impact or destroy coastal ecosystems. This kind of research, known as bio-prospecting, has started to explore the rich coral reefs of eastern Africa where these animals are found in abundance.
For the entire region at least species of fish constitute the bulk of catches, yielding an estimatedtonnes each year. This activity can be conducted in small groups. This may entail the controlled or moderated fishing which is sustainable. With sufficiently detailed records, it may be possible to evaluate the relative importance of climate and human-induced environmental changes on marine ecosystems, including the degree to which human-induced postth century global warming has had a significant effect on marine ecosystems.
Numerous lines of evidences suggest regional differences in the timing of the inception of marine ecological degradation. Coastal tourism and Industrial development Coastal tourism contributes significantly to local economies of the region, particularly Kenya, where it accounts for a large and increasing proportion of foreign currency earnings.
The extinction takes away the beauty of the coastal areas because its natural aspect is taken away. This is called an algal bloom. Pressure from ports, other marine facilities and related infrastructure is expected to increase. Institutions responsible for the control and regulation of natural resource use must be strengthened, both technically and economically, and be given the means for their mobilization.
Activities responsible for marine environment degradation — i Direct impacts are caused by a variety of pressures, mainly due to an increasing population, urbanization and industry and tourism development. What Are the Causes of the Destruction of Ecosystem? They affect areas of natural forest.
Extinction of animal and plant species Animals such as whale, shark and many others depend on other aquatic ones such as seals for food.
It means that the country or the people that border this particular water body will be obviously deprived of the opportunity to freely gain from the benefits of the aquatic plants and animals.
It is important to deploy a range of optical instruments to measure plankton activity, suspended matter, and nitrate with the help of research vessels to monitor the marine ecosystem. Possible solutions to the problem of deterioration of the ecosystems include developing formal and informal environmental education programs to make farmers more aware of their actions; increasing enforcement of the existing legislation; promoting proper natural resource management; and promoting the organization of grassroots groups to control burning from the outset.
Wetlands, mangroves, rainforests and coral reefs are examples of ecosystems. Although several researchers have shown the importance of microfossils in understanding marine ecological degradation Tikkanen et al.
Degradation of marine environment — In general, degradation of the marine environment refers to damage caused to marine ecosystems and species and are considered as direct and indirect effects of various human activities.One of the main causes that contributes to the degradation of ecosystems is the deforestation due to the advance of the agriculture frontier and inappropriate forest exploitation.
More lands are deforested for commercial agriculture and live-stock rearing, and due to overexploitation of forest for wood and energy. The marine habitat destruction and loss is where the marine environment or the ecological set up is unable to support life due to degradation.
This is a process that is contributed by various natural and human activities. Pollution is one of the main causes of ecosystem destruction.
Pollution can deplete resources and drive away local animal populations. Significant sources of pollution include trash, carbon emissions, oil spills and pesticides.
Causes of degradation of the Marine Ecology 1) Global warming 2) Acidification of water 3) Pollution 4) Oil spills 5) Marine Fisheries Acidification of water Ocean acidification is the name given to the ongoing decrease in the pH of the Earth's oceans, caused by their uptake of anthropogenic carbon dioxide.
These critical areas, which include estuaries, swamps, marshes, and wetlands, serve as breeding grounds or nurseries for nearly all marine species. Causes of Ocean Habitat Loss Humans and Mother Nature share blame in.
Marine Ecosystem Causes of Degradation and Case Studywhat Is the Marine Ecosystem? Marine Ecosystems Are Among the Largest of Earth's Aquatic Ecosystems. It Covers Almost 70% of the Earth's Surface. They Include Oceans, Words | 9 Pages. What is the Marine Ecosystem?
Marine ecosystems are among the largest of Earth's .Download