Posts with the category “alert-diver-fall-editions”
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Could optimising a diver’s hydration and temperature improve their decompression safety?
September 25th, 2022
An astute researcher noticed that there was a slightly higher incident rate of DCS that would otherwise have been expected for those US Navy divers, who were involved in the salvage and recovery of th... Read More
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Boat ladder safety
September 25th, 2022
Most divers who have dived from boats, know that before they enter the water, they need to check that nobody is below them. Also while using a ladder to climb back on-board after the dive, they make s... Read More
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Cuba’s Golden Fish
September 15th, 2022
Cuba’s multidecade efforts have fashioned one of the largest and oldest no-take coral reef marine reserves in the Western Hemisphere. What a joy to explore a fish haven spared the horror of hooks, spe... Read More
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Blue Heron Bridge
September 15th, 2022
Don’t expect colorful reefs; prepare instead for a menagerie of unusual and exotic sea life you would typically have to travel the world to see. Every dive can be a surprise — you never know what’s lu... Read More
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The Ocean Less Traveled
September 15th, 2022
The ocean’s soothing sounds can easily lull us into serenity, but a community in dire need of conservation, research, and protection lies below the surface. The ocean’s health is in crisis, and marine... Read More
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Not in Denial
September 14th, 2022
The ER was not busy that afternoon. The doctor listened to my symptoms and understood I wanted to get to the chamber. He called the DAN hotline and spoke with the medic, who connected him with the D... Read More
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Sweet Spot in Time
September 14th, 2022
In the past, the ocean did not require specific policies to protect it from human actions. Polar regions and the deep ocean were protected by their inaccessibility, and returning to the same place in ... Read More
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Diving Into an Ocean Climate action plan
September 14th, 2022
Even if we solve all our other problems, we might still see the collapse of our living seas due to climate change alone. A warmer, more acidic ocean holds less dissolved oxygen, which is fine if you’... Read More
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The Edge of Extinction
September 12th, 2022
Sea otters are much more than just another pretty face. They are known as an indicator or sentinel species because what happens to sea otters reveals much about the conditions of the nearshore ocean w... Read More
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Freediving: Seeking and Finding Our Limits
August 24th, 2022
I thought the freediving certification would simply teach me how to hold my breath for an impressive amount of time. But it was so much more than that, providing an invaluable lesson in the chemistry ... Read More
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Preserving History: Leslie Leaney
August 24th, 2022
Why I’m a DAN Member:
My friends have always had my back during my adventures. DAN has had that covered, along with my left, right, and front. I’ve always had DAN as a traveling companion. Leaney has ... Read More
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When History Seemingly Repeats Itself: DIADEMA SEA URCHIN LOSS
August 24th, 2022
Scientists are currently working to determine the cause of death for this mortality event by examining tissue samples of healthy or diseased Diadema in collections from Grenada to Florida and Mexico t... Read More
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Diving With My Dad
August 24th, 2022
My dad had started scuba diving 30 years earlier when he joined the Merchant Marine. He traveled the world on merchant ships, which allowed him to dive in many distant port cities. Later, he and his d... Read More
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Freediving Is About To Enter A New Era If Oxama Has Its Say
July 6th, 2022
I didn’t have a dramatic wake-up call underwater, but I began to feel a profound desire to improve underwater safety. At the beginning of 2017, Claudio, Vincenzo, and I were preparing for our next sum... Read More
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Ensuring Safety in Freediving Competitions
July 6th, 2022
Freediving competitions present a significant logistical challenge, and it is typically the safety divers who are in charge of the daily setup and breakdown of the event equipment. This exposes the sa... Read More
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Air and a Spare
March 26th, 2022
If you think a small bailout bottle is right for you, consider a few other issues. Maintenance requirements will be similar to those for a full-sized scuba tank, including hydrostatic testing, so you ... Read More
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Tonga’s Gentle Giants
December 1st, 2021
Humpback whales feed in polar waters during the summer and then migrate to tropical or subtropical waters to breed during winter. Various locations offer seasonal whale-watching, but swimming with the... Read More
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On a Mission: Critter hunting in Washington’s Salish Sea
November 30th, 2021
There’s a big difference between casual, submerged sightseeing — happy-snapping pictures of whatever you run across while blowing bubbles — and diving dedicated to carefully searching select sites, so... Read More
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Inspecting and Testing Scuba Cylinders
November 25th, 2021
After cylinders first enter service, an annual visual inspection and a five-year hydrostatic test are required. These requirements include cylinders used for diving and other life-support applications... Read More
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Rescue Skill Modification
November 25th, 2021
Techniques for rescue diving seemed suited for people with a different body type and skill set — at 5 feet, 4 inches tall, I am a petite woman. Practicing rescues was challenging at best and near-impo... Read More
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Sound in the Silence
November 25th, 2021
Audible cues and signals can get your buddy’s attention, signal a group of divers or indicate a problem you can help address. Even though we may dive to escape the noise of everyday life, we need to p... Read More
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Answering the Call
November 25th, 2021
In Wild Seas, his new book published by National Geographic, Thomas Peschak ponders his career path: “My life as a National Geographic photographer has been socially isolating, emotionally exhausting ... Read More
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Celebrating Seagrass
November 25th, 2021
The benefits of protecting seagrass cannot be overstated. Seagrass purifies the water, helps protect against coastal erosion, helps sustain small-scale fisheries that support communities, and increase... Read More
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Photography in the Plimsoll Interface
November 23rd, 2021
Underwater photographers sometimes refer to the narrow water zone where a subject splits the surface as the Plimsoll interface. Opportunities abound here for dynamic shots achieved by angling the came... Read More
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Immature Blood cells
November 19th, 2021
Platelets are components within our blood responsible for beginning clotting. Decreased platelets will inhibit clotting, which may lead to uncontrolled bleeding. If you have bleeding from blunt or pen... Read More
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PFO CONCERNS IN DIVE INJURY TREATMENT
November 19th, 2021
A PFO is undoubtedly a concern with diving because about 25 percent of the population has one. The recovery position supports and maintains an open airway in an
unconscious person or injured diver. ... Read More
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DAN SUMMER RESEARCH INTERNSHIP
November 19th, 2021
More than 100 interns over 20years have participated in DAN’s internship programs, working
with established mentors in research, risk mitigation or medicine to gain knowledge and valuable professional... Read More
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Shore Thing A HOW-TO GUIDE FOR ASPIRING BEACH DIVERS
November 19th, 2021
Aside from allowing me to avoid that sunrise alarm, shore diving offers other freedoms as well: the last-minute choice of a dive site, the ability to do two-hour dive without worrying a boat crew and... Read More
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It Can Happen to Anyone
November 19th, 2021
Our divemaster immediately gave me 100 percent oxygen and notified the captain. We quickly returned to the resort dock. At some point during the ride back they had called to shore and contacted DAN, w... Read More
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The Blue Desert Conundrum
November 19th, 2021
Crystal-clear, nutrient-richwaters may exist in polar seas in the darkness of winter, but elsewhere nutrients in the presence of sunlight nourish phytoplankton, which turns the water green with chloro... Read More
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Seeking an Octopus
November 19th, 2021
New data can show that we aren’t quite as good at understanding nature as we think. New findings can cause us to reassess what we think we know about the beautiful and immensely enigmatic underwater w... Read More
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Finding Your Fitness
November 19th, 2021
Recreational scuba diving is generally categorized as moderate physical activity, but circumstances can make it high intensity. For reference, other examples of moderate activity are a brisk walk on a... Read More
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Sea Turtles of the World
October 30th, 2021
The world’s sea turtles are a far-ranging, deep-diving, long-enduring and truly diverse group of animals. Some are carnivores; others are herbivores. Some are pelagic, while others are coastal. Most a... Read More
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Experience
April 15th, 2021
Date: 16 November 2016 | Author: Karl Shreeves Although it is clear that diving experience reduces divers’ risk of injury, experience is an imprecise term that conjures different ideas in different pe... Read More
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Evaluating Oxygen Delivery with a Demand Valve
December 8th, 2020
Oxygen systems commonly used for dive accidents can have two delivery options: a pressure-activated demand valve or constant flow for use with a nonrebreather mask.... Read More
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A Predator's Dream
December 8th, 2020
Nuclear hunting, the most common multi species feeding association, primarily revolves around a foraging eel, octopus or goatfish (the nucleus) followed by a gang of feisty predators looking for an ea... Read More
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Scuba Diving and Factor V Leiden gene mutation
October 19th, 2020
The goal isn’t to find a physician to sign off on your ability to dive but rather to objectively determine whether your medical history, Factor V in your case, is compatible with diving.... Read More
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The Watchman device and diving
October 19th, 2020
Divers who have AFib should be well rate controlled, both at rest and when performing moderate exercise, and understand the possible complications of their condition before considering diving. We reco... Read More
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The Importance of a Predive Safety Check
October 19th, 2020
Complacency and skipping your predive safety check or buddy check are entirely preventable factors in dive accidents. Complete all your checks before every dive. ... Read More
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Children and Diving
October 19th, 2020
Children are still developing both physically and mentally, which affects the decision about whether a young diver is fully capable or requires some modification. Some training agencies allow in-water... Read More
Categories
2023
January
March
Demo DiversCape Marine Research and Diver DevelopmentKaboom!....The Big Oxygen Safety IssueTerrific Freedive Mode“LIGHTS, Film, Action!”Scuba Nudi ClothingDive into Freedive InstructionThe Benefits of Being BaldThe Inhaca Ocean Alliance.Special Forces DiverToughing It Out Is DangerousWhat Dive Computers Don\'t Know | PART 2
April
July
August
September
Avoid Diving With EarplugsKwaZulu Natal shipwrecks: The ProduceDive in the Fast Lane with DPVsLearning from Success. Learning from MistakeLiability in ContextUnderwater Crime Scene InvestigatorsTravel Smarter: Personal Safety While TravelingDive Boat Etiquette – From Yachts to rubber ducksThe Parting ShotMismatched Scuba Valves to Cylinder OutletsPredive Warm-UpWeight loss for diversTara Panton's Cape NudibranchsRESEARCHER PROFILE: Petar Denoble: Solving practical issues for diversMonitoring Cardiac Health in Scuba Divers
2022
January
February
UNCERTAINTY AFTER DIVING: Case Report and Recommendations #1.UNCERTAINTY AFTER DIVING: Case Report and Recommendations #2UNCERTAINTY AFTER DIVING: Case Report and Recommendations #3UNCERTAINTY AFTER DIVING: Case Report and Recommendations #4DIVERS LOSING ACCESS TO EMERGENCY CAREPreventing Breathing gas Contamination
March
When Should the Rescue Begin?Celebrating Young and Old in Turks and CaicosScuba Cylinder RundownChasing WeedsUnderwater Smartphone PhotographyAir and a SpareUnderwater Photographer: Fred BuyleBuilding Better BalanceLow-Visibility DivingMore Than a Sore ShoulderNot Only for DivingLaryngospasm and AnxietyPulmonary Hypertension and DivingTitan Meets TitanicPool Operation: Know Before you GoThe Argonaut Octopus and the jellyfishShort but Beautiful Lives
April
A Sense of PurposeMexico’s Sardine RunHigh-Pressure Hose injuriesA Hole in My HeartGoing UpConcussion and Return to DivingMarfan Syndrome Recommendations.South African Sardine Run by Walter BernardisSouth African Sardine Run By ProdiveSardine Run Port Elizabeth by ProDiveSardine Run Port St Johns by ProDiveScuba Diving In MauritiusScuba Diving in TanzaniaScuba Diving in the SeychellesScuba Diving in Nosy BeScuba Diving in MalawiScuba Diving in KenyaScuba Diving in South AfricaScuba Diving in Mozambique