This proves that another environmental threat that blue crabs faces are fishing because they may not be a type of fish, but, like most crabs, they are fished, caught and sold. This allows overfishing to be a problem. Not to mention, another environmental threat that this fascinating animal, the blue crab, faces is climate change. Corresponding with the text, “Climate change is another major threat to life in the oceans. Warming ocean waters, rising sea levels, and violent storms disrupt the lives of many species and affect fragile marine ecosystems,” (Digan 14).
This is concerning for a couple of reasons. First, it has a tremendous negative impact on the marine ecosystem. Species are being taken away from ecosystems, in some cases even being depleted to near levels of extinction. For example, the same UN report reveals that, worldwide, nearly 90% of predatory fish stocks are gone . That means that most of the world is losing
Also, storms can destroy reefs, also often caused by humans affecting the environment. Around 50% of our coral has died, and this has a major impact on many other organisms, and the world in general. Many fish live in reefs, and need it survive, and this ruins the ocean, the most important part of the Earth. This comes back to hurt us as well. Eutrophication is a process in which excess nutrients
How the oceans may die is crucial to understand in order for them to be preserved for the survival of the planet. Numerous human activities generate a staggering amount of grave complications for the oceans and its crucial marine life. One of the most direct human activities that causes rapid decline in marine populations is overfishing. Some of the species
Sharks, dolphins, turtles, seals and seabirds all get tangled in these nets, as by-catch, with no way to get out. Some of the animals that are caught die, either while they’re being dragged along the bottom of the ocean or when the fishermen bring them on deck and don’t put them back fast enough. FAO experts assessment concluded that there are roughly 27 million tonnes of global by-catch for every 77 million tonne catch. This statistic means almost 1/3 of every catch is by-catch. Fish populations are on the decline, no thanks to carless fishermen and their pollution.
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.
Overfishing happens because fish are captured faster than they can reproduce. With the oceans covering more than 70% of the Earth the health of the marine life is essential for the humans and many other organisms to survive. Each time a boat goes out fishing, the boat on average waste 90% of all the fish they have caught, according to ted.com, this is just one example of overfishing. This means that 90% of the fish are caught but not used for food and they are just thrown out. Wasting fish affects the biodiversity in the oceans since it puts extinction the species to risc, this affects the food
The gooey mass that makes up an oil spill will litter the shoreline with a monstrous dark tar making it exceptionally hazardous since the shoreline is the place much marine life is concentrated. Shorelines give nurseries to fish and marine life, by defiling the shoreline the oil have a risk and are hazardous to the marine life in the
The main species being killed are the Bottlenose Dolphins, Spotted Dolphins, Risso’s Dolphins, False Killer Whales, and Short-Finned Pilot Whales. All of those species listed are considered threatened by IUCN-World Conservation Union. If these species were to become extinct or endangered there would be an overpopulation of fish in the oceans (Conservationists). In many ways, the Japanese businesses doing these drive hunts are causing many different problems the environment that will eventually come back to haunt the
Many shoreline businesses got ruined and many seafood businesses had to be temporally shut down due to loss of sea life around the coast of Samoa. After the tsunami hit Samoa, as well as Tonga, it receded back into the Pacific Ocean, taking a great amount of rubbish along. This polluted the ocean a lot, it was responsible for many deaths of various sea animals. As well as land
Sharks have the task of killing the wounded, old, and sick fish in schools to keep the stocks of fish healthy and plentiful. Andy Dehart, Discovery Channel Shark Advisor, spoke about the North Carolina shark over fishing problem. The shark populations on the East Coast were extremely over-fished which lead to the over population of sting rays, a main food-stock for sharks. The stingrays in turn decimated the shellfish populations on the East Coast, leading to calm and shellfish shortages. This shows that sharks are necessary for every eco-system and their destruction affects us in more ways then we can imagine.