Sharks are one of the most endangered species in Australia, and it’s our responsibility to help
protect these sharks from being over-fished. Many fishing markets fish sharks but deteriorate
physical features that help with distinguishing sharks and is very difficult to differentiate between
them, since they are produced the same way- as fish and chips. In this experiment DNA samples
have been taken from sharks from the NSW Shark Meshing Program. The DNA was extracted
and amplified for the production of a DNA sequence in order to obtain the species of shark and
determine its endangerment. Many of the shark species were of Carcharhinus genus and an
outstanding 53% were a part of the endangered list. Sharks have large fins which make it valuable
and they are being increasingly targeted in some areas in response to increasing demand for the fin
trade. This strongly suggests that conventions need to be more effective in protecting endangered
species.
INTRODUCTION:
Sharks have been vulnerable through the unregulated fishing that goes on with the increase in the
fish market (Punt, 2000). The numbers in sharks have decreased due to the unregulated fishing
and also that sharks are K-selected which is they don’t produce as many young and have a late
maturity age, and has caused many shark species to be endangered (Myers et al.2007). Conventions
have been put into place such as The Convention on International Trade in Endangered Species of
Wild Fauna and Flora (CITES) which prevents the trade of endangered species; however it is often
very difficult to distinguish between sharks and to know which one is endangered and which ones
are not. ‘This is specifically evident in the case of shark fins where the phy...
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...A samples had a separation of macromolecules based on the size and charge DNA.
Figure 2: the image of the gel electrophoresis of the shark DNA samples obtained.
Figure 2 has demonstrated clearly that there has been separation depending on size and charge of
each sample, which is represented by the different shades of the colour. Each band is representing
a band of DNA, and this image tells us that there is a good amount of DNA in order for DNA
amplification.
DNA amplification produced the DNA sequence, the sequence is important in the identification of
the shark species using the barcode for life program. All shark samples were identified and varied a
lot more than what was hypothesised. It included the bull shark, dusky shark, blue shark, tiger shark,
the great white, the short fin mako shark, angel shark, blacktip shark and the hammerhead shark.
The Great Shark debate – to cull or not to cull, has been at the forefront of the minds of conservationists, as well as the general population for many decades now. The opinions of everyone are divided, according to their personal experiences, and views on what is right and wrong for the environment.
The Grey Nurse shark has a current conservation status of endangered in Queensland and critically endangered throughout all of Australia. Since 1996 the grey nurse shark has been protected nationally, and is listed in two different populations. It is believed that there are
Torres states they environment they live in,biology,height,and weight. There are marine ofcourse, in deep water in 34s-47s,deep range 25-950m,usually 100 -600m. They feed on shellfish,worms,small fish and crustacean it’s what they feed them self with. Their length could be up to 96.0 cm it’s a common length,55.0cm tall it’s also a common height. Ghost sharks are usually in New Zealand and Australia . The author conclusion Ghost sharks are a very stable sharks that live in the deep sea,go for easier pray and it’s common pray.
Information (sub-point): Shark finning also has also drastically negatively affected the entire shark population. According to SharkSavers.org, “Shark populations face the threat of extinction in every part of the world primarily due to overfishing driven by the high demand for shark fins” (SharkSavers, 2013). It is also found that the global shark population has decreased by a drastic 90% over the last 50 years, and if change does not occur quickly, the entire shark population could potentially disappear
"Home - Shark Research Institute." Shark Research Institute. N.p., n.d. Web. 04 Jan. 2014. .
In addition to Western Australia’s targeted species being Great White sharks, Tiger Sharks and Bull Sharks, the QSCP contains a variety of additional target species, some of which have never been
Studies suggest that a “live shark, over the course of its lifetime, is worth $1.6 million, which is a great deal higher than the $200 the dead shark can sell for” (Fairclough). This statement holds true because of shark ecotourism, or shark-related activities such as shark viewing, is an industry that is expanding rapidly. If people would instead invest in shark ecotourism rather than shark fisheries, business would be far more profitable: “Shark ecotourism currently generates more than $314 million worldwide and is expected grow to $780 million in the next 20 years” (McGuire). For example, “a single whale shark fin can fetch up to $15,000 in some Asian markets,” but in stark contrast, the annual profit made worldwide from whale shark viewing "brings in an estimated $47.5 million” (Williams). When compared whether shark finning or shark tourism reap more profit from an economic standpoint, then it is clear that a live shark is more valuable than its fins. Furthermore, both industry and sharks alike would benefit from shark ecotourism, without the damage caused by shark finning
Every year, there are about 100 million Sharks killed, ultimately for its commercial success. Their fins are used as the main ingredient for a dish so-called Shark soup. However, many are unaware of the actual importance of Sharks' existence on Earth. They do a number of things to control and balance aquatic life down below, which in return affects how we live on the surface. Sharks have existed in our world for over 400 million years, if they were to suddenly disappear for industrial purposes, much problems will be encountered throughout the world. We must preserve the lives of Sharks, for many reasons most importantly that shark hunting is morally wrong, it may provide economic failure in a given time, and it may serve a critical unbalance of a healthy environmental state.
Shark slaughter has led to shark populations being rapidly decimated all around the globe. Fishermen report that sharks are also getting smaller because they are not being given enough time to fully mature. Although there are other fish that are targeted more than sharks, they are not exactly affected by the kind of endangerment that sharks are currently experiencin...
In 2015 only 59 shark attacks have occurred around the world compared to the millions of sharks killed by humans every year. Due to these accidental shark attacks people tend to think that sharks, especially Great Whites are evil creatures with malice intentions when attacks do occur; but, on the contrary that is wrong. Sharks are not the only beautiful and unique creatures in the ocean, they also play a vital role in our ecosystem; however, due to human interference they might not be around much longer, through awareness sharks can be protected from endangerment.
Thesis: Sharks should be conserved because they are an important part of the ocean, attacks are often incidental, and human behavior influences the behavior of sharks.
Contrary to popular belief, sharks do get cancer but it doesn’t happen easily. Scientists must somehow make sense of the shark’s rather substandard immune capacity. One possibility could be that sharks do not require the same immune system functions humans do in order to
Most people think that sharks are large, fast-swimmers, and savage predators. This is true of some species and groups should be interested of the appealing aspects of biology found within it: all sharks have an excellent sense of smell; some can detect electrical discharges; some sharks give birth to one of the
One particularly interesting sea creature is the whale shark, formally known as Rhincondon typus it was first discovered in 1828 by Andrew Smith (Rowat 2012). This large fish is found globally in warm tropical oceans and prefers to stay within 200 meters of the ocean’s surface in waters ranging from 4.2 to 28.7 degrees Celsius (Stevens 2006). This creature can be found all across the globe in any warm tropical seas. Aggregations of whale sharks have been seen off the coast of Australia at times, although it is primarily a creature of solitude. Whale sharks are filter feeders that consume plankton as well as small fish and are harmless to humans. The whale shark is a species with a fascinating ecology, life history, behavior, anatomy