Red Tides affect the marine and land life in various ways, the most important of which are listed below 1. Effects on human life: i. Paralytic Shellfish Poisoning (PSP): This happens if fish contaminated with Alexandrium species is consumed. It majorly affects the nervous system and in many cases leads to paralysis. In extreme cases, the paralyses may affect the respiratory system and ay result in death. ii.
Oceans are polluted by oil daily from oil spills, routine sea shipping, runoffs, and dumping oil straight into the ocean. An oil spill is the discharge of petroleum into habitats by vehicles, vessel or pipelines. It occurs extensively and it mostly takes place in water bodies. It happens due to human carelessness. Spilled oil can harm marine animals because its chemical components are poisonous.
European green crabs first appeared off of Cape Cod in the 1800s, coming from the European coast and northern Africa from seafood shipments or ballast water. They appear on five continents, with a huge presence on both American coasts. European green crabs try to eat anything there size or smaller, and one crab can eat three dozen small mussels a day. They can also crack young clams and oysters, and probably the cause for the end of commercial clam harvesting in so parts of
If human being consumes these contaminated organisms, toxic compound will be accumulated in human body. Deeper approach of natural science such as biomedicine is important related to marine contamination. Biomedicine knowledge particularly in anatomical, physiological, genetic and biochemical models are proven to be very useful to explain the impact of contamination in life organisms in marine ecosystem. Furthermore, it can also develop explanation about what kind of disease that might be created because of the toxic compound entering the food chain (Hansen, 2007). For example is the case of Minamata in Niigata prefecture, Japan, where heavy metals produced by chemical factories pollute marine area can enter the food chain and accumulate in marine organism and even human
When fish consume the plastic, it will move up the food chain and affect other aquatic animals that consume fish. “Endangered wildlife like Hawaiian Monk Seals and Pacific Loggerhead Sea Turtles are among nearly 300 species that eat and get caught in plastic litter” (“Ocean Plastic Pollution”). If an animal gets caught in plastic, then it could suffocate them. “In 2008, two sperm whales were found stranded along the California coast with large amounts of fishing net scrapes, and other plastic debris in their stomachs” (“Ocean Plastic Pollution”). When an animal eats plastic, it causes their minds to believe that they are full but plastic does not give them the nutrients that they need and will cause them to starve.
Argumentative Essay Deanna Wood Mrs. Tubergan and Mrs. Rhodes English 6 12 March 2018 Each year sea turtles, such as the Loggerhead Sea Turtles, get closer and closer to extinction because of threats they face every single day. They die from fishing nets, marine debris and oil spills. Loggerhead Turtles will be extinct if we don’t stop causing the harmful threats we are doing. First, oil spills is a big problem in killing our sea turtles. According to Sea Turtles Conservancy there has been a study in 1994 on baby sea turtles, that 63% of all the baby sea turtles had tar inside of their bodies.
Keltie was the first to be killed by Tilikum's stress and frustration. After Byrne death they closed down SeaLand and put Tilikum for sale. SeaWorld purchased him for their breeding program. The 54% of the Orcas at SeaWorld have Tilikums DNA. After 25 years at SeaWorld Tilikum started to show an abnormal and repetitive behavior where he would chew on metal gates and on the concrete sides of the tanks which has caused his teeth to warn down.
Corals under stress due to changes in PH levels or temperature of the water will expel the algae (zooxanthellae) living within their tissues causing the coral to turn completely white. This is called coral bleaching. Another cause of coral bleaching is produced formation water, an effluent of offshore oil and gas industries that cause significant bleaching ( White et al .2012) .When a coral bleaches, it is not dead. Corals can survive a bleaching event, but they are under more stress and are subject to mortality. Mortality amongst corals has appeared to be the breakdown of the symbiotic association between the zooxanthellae and the coral host.
Thirdly, the ocean and its inhabitants are greatly affected by marine pollution. Marine pollution is the entrance of hazardous materials into the ocean. The ocean can be polluted a number of ways, including garbage, sewage, and noise. Garbage pollutes the ocean by disturbing marine life and tarnishing the marine environment, it can also damage ships. Sewage pollutes by adding dangerous chemicals to the ocean and depleting oxygen used by the animals.