Read and interview with shark biologist Dr. David Delaney. Dr. David Delaney has dedicated his career to the study and conservation of sharks. I was interested to learn what he thinks about the practice of baited shark dives. Shark feeding on scuba dives can be done by hand, by tossing fish bits in the water from a boat, or by hiding feeder fish in some sort of receptacle which the sharks approach. Read more
Trim is one of the most important (and most overlooked) concepts in scuba diving. A diver's trim refers to his position in the water. A diver in good trim can hold a horizontal position in the water with no hand or fin movements. Trim is affected by arm, leg, and torso position, as well as by body composition and equipment configuration. This article assumes divers already understand the concept of trim in scuba diving, and focuses on how a diver's equipment may be adjusted to correct his trim. Read more
A pair of rounded eyes poked out of the sand. One eye pointed directly at my dive group while the other focused in the opposite direction. I couldn't believe my luck! My dive group was making its way between two coral heads, and I had just spotted a peacock flounder buried beneath the sand. I called my dive group to a halt, and then slowly finned my way closer to the flounder so as not to frighten it away. Read more.
By About.com guest author Julien Borde. Freedivers have no control over buoyancy. According to Boyle's Law, the deeper you dive, the more negatively buoyant you will become. This means that because he does not have a BCD, at some point the freediver begin will sink. Even though a freediver cannot control his buoyancy, with a little training can use the buoyancy shift to his advantage. Read more.
Ten years ago, this was a healthy coral reef. Thankfully, you can help to restore this once thriving ecosystem.
By About.com Guest Author, Stefanie Conrad. Convincing others to be concerned about the health of our coral reefs is challenging. As recreational divers in the tropics, where most coral reefs are found, we pay dive shop operators to take us to the best spots for indulging in the strange and rich diversity of life underwater. It's a paradise that we've escaped to, where we can relax and enjoy peace and quiet surrounded by beautiful vistas. Read more.
It takes time and experience to become comfortable enough in the underwater world to perform complex tasks, or even to think clearly and logically. For divers who are ready to take their diving to the next level, I can offer some simple advice to improve mental control and clarity of thought underwater. Read more.
Do you use a DIN or a yoke regulator? A surprising number of divers have no idea what type of regulator first stage they use. This is important information, particularly when planning dive trips to locations that may not have tonly DIN- or yoke-compatible tanks. If you have forgotten the difference between DIN and yoke regulators and tanks, this quick review is worth checking out. Read more
There are many signs of scuba-obsession! The ability to talk about a dive for a period of time longer than the dive itself lasted. The inability to hold your breath. Ever. Because its just wrong. Personally, I have spent many long nights at bars talking about equipment configuration. Embarrassing? Yes. But true.
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Understanding buoyancy is key to safe and easy scuba diving. While the concept of buoyancy may be confusing at first, it becomes clearer when we consider how buoyancy effects scuba divers and what divers need to know to properly control it. Read more
This illustrated guide will help divers identify twenty of the most common and interesting reef fish in the Caribbean, Florida, and the Western Atlantic. Familiarize yourself with these fish before you go diving and then try to spot them underwater, or click through this list to see which fish you recognize from your Caribbean dives. Read more