It gets especially worse during an El Nino year. In 1990 during the El Nino 65% of the coral reef in the Persian Gulf was destroyed. There are many local threats of a coral reef, one of them being fishing. A huge percentage of the world’s population relies on coral reefs for food and income. Local residents fish on the reefs as their livelihood depends on it.
Most of the impact of this was experienced by the marine species. Eight U.S. national parks were threatened and more than 400 species that live in the Gulf islands were at risk, including the endangered Kemp's Ridley turtle. The clean up of this travesty cost the government and companies billions to clear. As a result of the spill deep sea drilling in the Gulf was suspended until new safety measures had been put in place, costing governments and companies further millions, whilst the price of oil continued to rise. A spill in other deep sea areas such as the Arctic could accelerate damage in a very sensitive environment, which is already dangerously close to its
The North Pacific Gyre: Recycling is Dire There’s a new continent in the Pacific Ocean! This continent has been called many things from the great pacific garbage patch to Trash Island. This swirling mass of plastic bags plastic bottles and other non perishable items has been accumulating in the Gyre for years. Caught in the northern Pacific currents that form the N. Pacific Gyre. This Largely covered area of plastic remnants that have been broken down to small pieces have a damning effect on the wildlife that depends on the Gyres currents for food.
These runoffs have contributed to the beach closures, and the unsustainable condition of biological life in the lake. Human health is at great risk due to the untreated waste that is dumped in Lake Huron each year. The untreated sewage contains many viruses, two being Giardia (an intestinal parasite), cryptosporidium, which causes intestinal illnesses and even death. E. coli a more familiar virus has elevated its concentrations in Lake Huron, found in either animal or human feces, which causes diarrhea, nausea, and stomach cramps. ("Testing the waters,"
The poisons will kill fish and the reef in which the fish live because there is no precise way to deliver it. The fishermen will dump the poison on the water in a likely spot and catch what floats up. The problem with poison is that it does not choose what it kills, so it kills reefs and poisons the area for new generations, then the fishermen go on to another area to repeat the destruction. [ (Coral Reef Destruction and Coversation) ] 2. Red is the endangered areas In image 2, the most endangered reefs are in areas that are considered “Third World”, where populations have limited access to education.
Fertilisers, sewage and pollutants can have direct impact on the coral reefs. They grow algae a lot which ends up covering the ocean and sunlight cannot reach the coral reef for growth. Since the coral reefs are near rainforests, when trees are logged, the ground will break apart into the sea from hard rain which damages the coral reef. Oil Spills Many routes for transporting oil is in the coral
2. Do background research – Utilizing at least one scholarly source, describe how variations in dissolved oxygen content in a body of water can affect fish populations. Answer = “Oxygen depletions are the most common cause of fish kills in ponds. (Aquaplant, 2014).” Based on my observation of the chart and what I read, the higher the dissolved oxygen levels the number of fish drops. Dissolved oxygen levels can also cause fish to suffocate and be more susceptible to diseases.
Dr Carl Meyer from Hawaii Institute of Marine Biology stated that mass levels of shark culling “runs the risk of ecosystem-level cascade effects where a general lack of sharks results in boom or bust in populations of species further down the food chain”. Furthermore when nets are used to trap sharks, often animals such as dolphins, turtles, whales and dugongs become trapped in them. Turtles are one of the most endangered species as a whole and are just innocent bystanders in this war between humans and sharks. We need to be careful of not affecting other animals in this quest to reduce shark numbers in the name of nothing. Sharks can already be caught legally by commercial and recreational fishers so any cull would be largely
This area is one of the densest concentrations of sea birds anywhere in the whole world. Even a small amount of oil can cause death in many of these animals because they can die from ingesting the toxic material, and lose their insulation when they are contaminated with oil. In 2004, two mechanical failures led to the loss
Not only is the water unfit for human consumption, it is now destroying the marine ecosystem and this is serious business when you consider how important the ocean's health is to human survival. The level of mercury found in tuna and salmon has already resulted in warnings about how much to consume because it is threatening to our very life. Close