Dr Euan Ritchie stated “When sharks were culled in Hawaii there was no long-term benefit because sharks attacks occurred immediately after”. Why then, waste billions of taxpayers’ money on a solution that has previously shown it does not work? In South Africa, again, according to statistics from the KwaZulu-Natal Shark Board, “less than 18 per cent of marine life caught on drum lines in South Africa in the 2011 to 2012 financial year have been great white or tiger sharks” with animals mentioned in the above paragraph contributing to the other 78%. A large scale cull would be highly redundant then as Australia would be no different from Hawaii and South Africa. In New South Wales and Queensland “there have been severe shark attacks on beaches that are protected by nets”, highlighting how wrongly this issue is being
Recently after numerous attacks, the Western Australian government stated a hunt and kill policy on any shark that is a tiger, bull or great white over the size of 4 meters. For numerous reasons this should be deemed illegal by the government and stop the culling in Western Australia. Australia is home to more diverse, unique and beautiful animals than any other place on earth, and included in these animals are the three sharks that have been focused on about in the cull in Western Australia. Ever since people have been utilising beaches for swimming and surfing, there have been shark attacks. And sadly on the flip side, ever since people have been swimming/ surfing at beaches, there have been attacks on sharks.
Yao Lin Research Paper The Effects of Human Activity on Marine Wildlife Earth is the only planet in the entire universe that currently has the capability to house living creatures. Considering that 70% of this planet is covered in water, one would think the creatures inhabiting the planet would treat the water with the upmost care. However, this is incorrect. Homo sapiens, the most intelligent species on the planet, tend to treat the oceans as a place to retrieve free raw materials and a personal waste disposal. During human’s 200,000 year existence on earth, this species has managed to completely undermine the ecosystem of the marine world by introducing alien species to a certain habitat, destroying marine habitats, over-harvesting fish, and polluting the waters.
Latest technological advances have increased the threat to the marine animal, especially for turtles. It's believed that many species of turtle already got extinct and seven species of turtle are in the verge of extinction. Olive Ridley is one among the seven breeds that are in the verge of extinction. Features of Olive Ridley Olive Ridley turtles have been around a very long time, more than 100,000,000 years. Olive Ridley sea turtles, Lepidochelys olivacea are small, hard-shelled marine turtles, one of the two species of the genus Lepidochelys, and a member of the Family Cheloniidae.
The name dinosaur translates as 'terrible or wondrous lizards' and they certainly evolved in a huge range of sizes and shapes, from the gigantic plant-eating sauropods to the quick meat-eating tyrannosaurs. So far, the remains of over 1,000 different dinosaur species have been identified from fossils the extinction of most dinosaurs species occurred in the Cretaceous-Tertiary Extinction event. Fossil records show that birds evolved within the Theropod dinosaurs during the Jurassic period. Some birds survived the Cretaceous-Tertiary Extinction event from which modern birds
Scientific Whaling in the Southern Pacific Ocean, Effects on the Environment and Legislation. Introduction Whales have inhabited the earth’s oceans for millions of years and are a vital part of the ocean’s ecosystem. Since the 1600s, whales have been hunted out of the seas and no species has fully recovered. They also contend with pollution, climate change, ozone layer loss, overfishing, vessel traffic, noise and entanglement in fishing gear. Whales are mammals that live for a long time and breed slowly.
Millions of years ago, reptiles lived in swamps and were very small, oversized by amphibians. After important extinction events, amphibians were devastated; reptiles adapted to living in drier conditions, and became carnivorous and herbivorous. The weaknesses that amphibians had were fixed in reptiles through evolution many years ago. During the Mesozoic Age, there was a wide diversity of reptiles and they dominated other species. Reptiles were the rulers of the world for a long time until mammals were
Many different kinds of fish live in the reefs as their haven for feeding, reproduction, and safety from predators. Without an ecosystem to live in, these fish species will become extinct. Ten percent of the world's reefs have been completely destroyed. Coral reef destruction is the worst, over 70% have been destroyed and only 5% can be said to be in good condition. What has happened to destroy so many reefs?
With an average of 6.3 million kilograms of trash being pumped into our oceans every year, it won't be very long until they reach breaking point. One of the most common pollutants in our oceans is plastic. In the United States, it has been estimated that two million plastic beverage bottles are used every five minutes and that marine litter now contributes sixty to eighty percent of plastic. Estimates for plastic shopping bags range from five hundred to a thousand years to breakdown. This is potentially devastating in that plastic is often mistaken for food by marine animals,
Manta rays are huge in size so only sharks and killer whales can harm them and eat them. However, many manta rays survived from the attack of sharks or whales. It is amazing that manta can heal the wound of shark’s bite and after a few years their broken fins can eventually grow back. However, the population of manta ray is declining. According to some statistic, the catch of manta ray has increased in Indonesia since 2005.