Destructive fishing methods cause harm to the reefs because the dynamite and cyanide or other methods used because they break up the fragile coral reef are highly unsustainable. Unsustainable tourism generates a lot of income for the host countries, the tourists damage the coral reefs by careless swimmers and divers, and poorly placed boat anchors. Then there is also the problem with the hotels and resorts have a tendency to discharge untreated sewage and waste water into the ocean, which pollutes the water and helps the growth of algae, which makes it harder for the coral reefs to grow and expand. The growth of coastal cities and towns that generate multiple threats to the coral reefs that are nearby because with the expansion of the cities or towns there is limited space airports and other constructions projects are taking up the space that the reefs need to survive. “Coral reefs are biological assemblages adapted to waters with low nutrient content, and the addition of nutrients favours species that disrupt the balance of the reef communities” ( The International Coral Reef Initiative).
These threats sometimes occurs naturally, however the most significant reason of this damage is human. People cause lots of issues while they are using or even sailing around this entrancing region. One of these issues is over fishing that may disrupt the food chain in the reef. Fishing unconsciously, has an impact on marine life due to using forbidden fishing method, trawling, and to left its trashes such as anchors and nets. In addition to trawling, hunting endangered species is another cause of this threat.
One of the leading causes for reefs to be endangered is due to the invasive lionfish. The lionfish’s impulsive eating habits are threatening our sea life of the reefs and decreasing our fisheries economically. According to Lionfish Hunters, the green side includes the cleaners that maintain the health of the reef and the health of other fish such as “grazers.” The grazers are the parrotfish, goatfish, wrasses, surgeonfish, and tangs. (The Lionfish Hunters, web.) These fish help clean the algae that grow over the reef, lowers the algae levels to support enough oxygen for coral to grow, and to establish efficient space for baby coral.
If the planet was to lose all the coral in the world, it would decrease the diversity of the ocean (Casper 184). Plus, the destruction of reefs affect other animals such as reef fish, turtles, and sharks (Casper 185). All this is happening due to global warming. How does global warming affect coral? Global warming has and is still negatively affecting coral due to the rising temperature of the ocean.
Hich carbon dioxide content in the atmosphere traps heat which is transferred to the ocean; it is also absorbed into the ocen, which causes the ocean to become more acidic. This is the most frequent cause of coral death. In comparison to dynamite fishing, spear fishing, land pollution, sea pollution, tourism, overfishing and invasive species, the increase in greenhouse gasses is the main cause of coral reef destruction globally, as it changes the temperature, current and content of the ocean, and it causes an increase in frequency and intensity of natural disasters. The rise in temperature of the atmosphere causes the sea level to rise as a result of glaciers melting and thermal expansion (1), this causes a change in the density and salinity. This change in density causes currents to vary, becoming more or less violent and varying in temperature (2), causing physical destruction and aiding coral bleaching.
The sustainability of the ocean’s plant life and food chain are dependent on the survival of sharks. My first argument was that shark finning majorly affects the oceanic environment’s plant life, which has proven to be a true statement as there is numerous evidence supporting this. My second argument was that shark finning majorly impacts the ocean’s food chain, which has been supported by numerous evidence. Although, the opposing view of the criminalising of this horrendous practice was determined false as the studies exhibited that shark fins do not have any anti-cancer benefits. The alternative that should be encouraged to Chinese citizens in regard to the banning of shark finning is Wildaid.
And the climate changes that are happening right now are affecting the fish. This is very bad as a third of the world’s tuna come from The Coral Triangle. When the oceans are getting warmer because of global warming, so will the fish body temperature and this will be shown in the important biological processes including growth and reproduction. If the fish is going to reproduce it can only happen in a narrow temperature range and that’s why it is one of the problems of rising sea temperatures. When the pH-unit in the water changes, it has an impact on fish and fish eggs.
Science: The sea lion is a sea mammal its scientific name is Zalophus californianus and it lives around several parts of the world and has over seven species and one extinct and they are the California Sea Lion, Steller Sea Lion, Australian Sea Lion, Galapagos Sea Lion, New Zealand Sea Lion, South American Sea Lion, and the Japanese Sea Lion which went extinct due to WWII. The Sea Lion belongs into the Kingdom of animalia, Phylum: chordata, Class: mammalia, Order: carnivora, Family: otariidae, Genus: Zalophus, Species: pinnipeds. Where Sea Lions are found almost across the world they live in places like California, Australia, the Galapagos islands, New Zealand, and South America. Sea Lions have diets of northern anchovy, market squid, sardines,
The oceans suffer a lot from pollution as well. Fishermen throwing their garbage into the ocean, which affects the health of the coral and the fish that live in it. Climate change is destroying the living environments of various animals, like the walruses. The WWF1 started their campaign Seastars to fight against the threats of the ocean. Overfishing comes down to one thing: Catching too much fish which leads to a degradation