by AquaNerd | Jan 10, 2018 | Science
Photo courtesy: Osearch.org Mary Lee, arguably the most famous shark in America, has gone silent. After being tagged with a transmitter by research organization Ocearch off the coast of Cape Cod in 2012, Mary Lee gained a legion of loyal followers tracking her ocean journeys. She has nearly 130,000 Twitter followers. However, no ping has been registered since June, reports the Post and Courier of Charleston. The good news: It doesn’t necessarily mean the end of Mary Lee. Ocearch tells Jacksonville.com that it’s more likely the batteries in her transmitter, designed to last about five years, have finally given out. See related article: Probable Great White Shark Nursery Discovered off Long Island. Click here to read more at Fox News. by AquaNerd | Jan 2, 2018 | Science
In 1799, the Italian scientist Alessandro Volta fashioned an arm-long stack of zinc and copper discs, separated by salt-soaked cardboard. This “voltaic pile” was the world’s first synthetic battery, but Volta based its design on something far older—the body of the electric eel. This infamous fish makes its own electricity using an electric organ that makes up 80 percent of its two-meter length. The organ contains thousands of specialized muscle cells called electrocytes. Each only produces a small voltage, but together, they can generate up to 600 volts—enough to stun a human, or even a horse. They also provided Volta with ideas for his battery, turning him into a 19th-century celebrity. Two centuries on, and batteries are everyday objects. But even now, the electric eel isn’t by Afishionado | Dec 30, 2017 | Science, Video
I had the immense pleasure of hanging out with Sanjay Joshi a couple of days ago on my birthday. In the car, we had some interesting conversations, and I would like to share one with you. He asked me: who do I view as competitors in the video content... by Admin | Dec 21, 2017 | Fish, Science
This particular science story piqued my interest, being a fan of (and occasional photographer of)... by AquaNerd | Dec 21, 2017 | Reef, Science, Tanks
So you’ve brought a bit of the reef into your home, and you want to add a flash of color. You’ve got your heart set on one of the most popular aquarium-dwellers, the angelfish, but you’ve heard that might not be a good idea. It’s true, most larger species of angelfish are not suitable for reef tanks, primarily because they have a propensity for chowing down on what makes a reef tank a reef tank. But one group seems perfectly fitted for the reef tank environment – the swallowtail or lyretail angelfish (Genicanthus). There are six species of Genicanthus that would be right at home in your reef tank: Bellus (credit: Aquafanatic) Bellus Angelfish (Genicanthus bellus) – Also known as the Ornate Angelfish. Tails narrow into by Afishionado | Dec 19, 2017 | Equipment, Science, Technology
For this blog, I got together with a few industry professionals and aquarium gurus to discuss a topic that was on my mind: Ozone. To learn all that I could on the subject, I talked with Boomer William Wing, an expert reef keeper that I hold in high regard; Raj...
