Why Sharks Are Important Essay Sample - New York Essays.
Our oceans are slowly turning into a plastic soup, and the effects on ocean life are devastating. Plastic pieces of all sizes choke and clog the stomachs of creatures who mistake it for food, from tiny zooplankton to whales. Plastic is now entering every level of the ocean food chain and is even ending up in the seafood on our plates. But it doesn’t have to be this way. That’s why we are.
Overview. Overexploitation does not necessarily lead to the destruction of the resource, nor is it necessarily unsustainable. However, depleting the numbers or amount of the resource can change its quality. For example, footstool palm is a wild palm tree found in Southeast Asia. Its leaves are used for thatching and food wrapping, and overharvesting has resulted in its leaf size becoming smaller.
Today, there are currently 100 million, or even more, sharks being killed every year. The main cause of this disturbing decline in sharks is overfishing, and while they are on the top of the marine food chain, their absence would cause disastrous effects in marine life, and even a global disturbance.
The Port Noarlunga Reef is made up of prominent rocky reef with sandy marine, muddy estuarine and samphire flats, home to more than 200 species of marine plants and animals (Gov,11). The Aquatic Reserve was established in 1971 to conserve the plant and animal species located within the reef and protect the exploitation of the habitats situated in the lower part of the Onkaparinga River (Gov.
Seafood is any form of sea life regarded as food by humans, prominently including fish and shellfish.Shellfish include various species of molluscs (e.g. bivalve molluscs such as clams, oysters, and mussels and cephalopods such as octopus and squid), crustaceans (e.g. shrimp, crabs, and lobster), and echinoderms (e.g. sea cucumbers and sea urchins). ). Historically, marine mammals such as.
Profound indirect ecosystem effects of overfishing have been shown for coastal systems such as coral reefs and kelp forests. A new study from the ecosystem off the Canadian east coast now reveals that the elimination of large predatory fish can also cause marked cascading effects on the pelagic food web. Overall, the view emerges that, in a range of marine ecosystems, the effects of fisheries.
Marine pollution occurs when harmful effects result from the entry into the ocean of chemicals, particles, industrial, agricultural and residential waste, noise, or the spread of invasive organisms.Eighty percent of marine pollution comes from land. Air pollution is also a contributing factor by carrying off pesticides or dirt into the ocean. Land and air pollution have proven to be harmful to.