Category

Sharks

Great White Shark DNA

The Great White Shark Genome Decoded And Health Secrets Unlocked

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The Great White Shark is a mysterious animal. Feared by many and respected by all for their status as an apex predator. The shark has been around for hundreds of millions of years, where it has evolved many times to survive. Scientists have been wondering how a primitive shark could survive for so long without being wiped out. The answer may be in their DNA.

A team of researchers has been able to crack the code of the Great White Shark DNA and they discovered 2 things.

Take a listen to the episode to find out what those important things are.

Share your thoughts on the breakthrough in our Speak Up For Blue Facebook Group: http://www.speakupforblue.com/group.

Want to get started on living for a better Ocean? Sign up for the Grove Collaborative and get a free gift: http://www.speakupforblue.com/goocean.

Resources: https://earthsky.org/earth/great-white-shark-genome-decoded

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Great white sharks replaced by seven gill sharks

Great White Sharks Disappear From False Bay, But Another Apex Predator Has Moved In

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A long term great white shark survey conducted in False Bay, South Africa has found that there has been a sharp decrease in Great White Sharks in 2017 and 2018. Those two years resulted in zero sightings of the once dominant shark species in the area. So what happens to a marine ecosystem when an apex predator disappears?

Dr. Neil Hammershlag (University of Miami) and Chris Fallows (Apex Shark Expeditions) wrote a paper on the subject that was recently published in Scientific Reports.

The authors found a drastic increase in sightings of seven gill sharks (120 sightings) when Great White Sharks weren’t present. The seven gill sharks normally occur 18 km away hidden in the kelp forests away from their predator, the great white shark. Now that the whites are gone, the seven gills are ready to take over.

Take a listen to the details in the episode.

What did you think about the great whites disappearing? Share your thoughts in the Facebook Group: http://www.speakupforblue.com/group.

Want to get started on living for a better Ocean? Sign up for the Grove Collaborative and get a free gift: http://www.speakupforblue.com/goocean

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New shark angling rules will put halt to shark selfies

Florida To Implement Better Shark Protections In Angling

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Florida loves to fish! They love to fish for sharks from the beach. It’s quite popular to fish for sharks from the beach in many parts of Florida. The fishing practice is a bit controversial as many anglers have been taking selfies with the sharks they catch.

Why is that so controversial? The fishers are excited about what they caught. They followed the rules, for the most part; however, the act of taking a selfie many not be allowed anymore because it is not good for the shark.

The big problem with taking a photo with sharks on the beach is that the anglers will drag the sharks out of the water and hold them there for the perfect shot. sharks need water to breathe; therefore, holding the shark out of the water is torturing them.

The Florida Fish and Wildlife Conservation Commission has taken the advice by various shark scientists, policy makers and the conservation community and are getting ready to accept and implement rules of no photography of sharks after the catch.

Take a listen to the episode for my thoughts on the matter and the challenges that come with this type of rule.

Note: Click here to listen to Dr. David Shiffman speak on why the rules are so important.

Do you think this new rule will be easy to implement? Share your thoughts in the Facebook Group: http://www.speakupforblue.com/group.

Want to get started on living for a better Ocean? Sign up for the Grove Collaborative and get a free gift: http://www.speakupforblue.com/goocean

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Data Collection at Fish Markets

Using Fish Markets For Fisheries Studies With Dr. David Ebert

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Dr. David Ebert (@lostsharkguy) joins me on the podcast today to discuss why scientists go to fish markets. He has been going to fish markets all over the world building relationships with fishers on what, where and when they catch fish (mostly sharks).

David has many reasons to go to a fish market rather than catching the fish himself.

Listen to the episode to find out what those reasons are.

Would You Go To Fish Markets to do Marine Conservation Research? Share your thoughts in the Facebook Group: http://www.speakupforblue.com/group.

Want to get started on living for a better Ocean? Sign up for the Grove Collaborative and get a free gift: http://www.speakupforblue.com/goocean

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Value of Science

Ocean Ramsay’s Followers Argue The Value Of Science

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As I consumed myself with the issue I discussed on the previous episode regarding Ocean Ramsay Swimming with Sharks and the controversy that it caused throughout the internet, I witnessed the attack on science by her followers. Many of Ramsay’s supporters questioning the value of science in conservation as compared to science contributions. Attacking science has become normal; however, it must stop.

I discuss how Marine Conservation is a field that includes scientists and conservationists in this episode. Both parties must work together, but they must do things the proper way. It seems that swimming with sharks and touching them has brought a divide among scientists and activists.

What are your thoughts on the matter? Share them in the Facebook Group: http://www.speakupforblue.com/group.

Want to get started on living for a better Ocean? Sign up for the Grove Collaborative and get a free gift: http://www.speakupforblue.com/goocean

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Should Divers Touch Sharks

Why Touching A Great White Shark Is Bad

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Ocean Ramsay is an Advocate known for free diving with iconic Ocean Animals such as sharks. Her uniqueness is that she touches the sharks in her pictures and images. The point of touching the sharks is to show that they are gentle animals and not the “human-killing” machines in the movies.

There is a recent viral set of videos of Ocean Ramsay swimming and laying her hand gently on a massive Great White Shark that was feeding on a whale carcass. The first video shows Ocean Ramsay swimming by herself with the shark making it seem very peaceful. However, the second video was a behind-the-scenes look at reality. There were numerous people swimming around the shark making it swim quite hectic.

Nothing bad happened to the shark or the people around it.

Scientists like myself, David Shiffman and many others spoke out about the video because of the touching of the shark. There is a saying among divers that you should not touch underwater life unless you have. In fact, PADI teaches the same lesson in there Beginner Open Water SCUBA Certification Course.

Touching animals while swimming is a controversial topic. Some people say it is better than tagging sharks because touching does not hurt them. Firstly, that saying is not true. Secondly, tagging provides valuable information that led to the protection of hammerhead sharks in Florida State waters.

What side of the issue to you lean on? Let me know in the Facebook Group: http://www.speakupforblue.com/group.

Want to get started on living for a better Ocean? Sign up for the Grove Collaborative and get a free gift: http://www.speakupforblue.com/goocean

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