THE COVERS Articles & Editorials APRIL 2001 • Volume 13 - NO. 4 
  
By Joseph C. Dovala
Although there is no fixed definition for a "small boat," most people consider a small boat to be any vessel that can be transported or trailered by a passenger vehicle, pick-up truck, or sport utility vehicle. This month's article "Small Boat Diving Offers Big Rewards" will help familiarize you with basic small-boat diving skills.
FEATURES
26 Small Boat Diving Offers Big Rewards: Proper Training: A Good Idea Before First Launch. Even if you do most of your diving from large boats, it's helpful to know how to handle yourself aboard a small one. The author takes a look at the little details that can help you have big fun - and increased safety - when diving from small boats. By Steven M. Barsky
38 Nitrox and Oxtox: In Search of Perfect Balance. The incidence of oxygen toxicity - oxtox - for recreational divers breathing Nitrox with open-circuit scuba is quite rare. In fact, there are no documented cases of fatal oxtox accidents among recreational divers. As long as we follow rules and take proper precautions, the risk of oxtox can be minimal. By Robert N. Rossier
48 Phylum: Cnidaria: The Stingers. This is the third installment in a series that delves into the natural history of marine animals you are likely to encounter when you dive. The articles are presented in order according to the taxonomic system used by scientists when they describe and classify plants and animals. An overview of the articles and the taxonomic system is provided in the February 2001 issue. By Marty Snyderman
62 Physical Oceanography: The Motion of the Ocean. One of the four primary disciplines of oceanography, physical oceanography is the study of the ocean's currents, air-sea interactions, waves, tides and global water circulation. In the second of a four-part oceanography series, we'll explore topics particularly relevant to divers - wind-driven circulation and major ocean currents. By Alex Brylske
COMMENTARY
8 Editorial: Only What We Love By Alex Brylske
10 Buddy Lines: Bike and Dive  
14 Dive Observer: Mysterious Illness Fells Loggerhead Turtles: Biologists Fear the Worst As Nesting Season Begins...and other news from the diving industry By Gene Gentrup
109 No Dumb Questions: Bubbles, Breathing and Avoiding the Bends: A Look at Dive Equipment and Theory. Insightful questions from inquiring readers By Alex Brylske
DIVE EXPLORATION
90 Dive Geo: The Galapagos: Darwin's Enchanted Islands. In the Galapagos waters exist 270 species of fish. Nearly a quarter of them are endemic - found only here. By Jim and Odile Scheiner
103 Dive Traveler: Volunteer Vacations: Fun and Fulfilling Travel Options. Ways to make a difference on your next dive vacation By Staci Meyer
107 Passport: Dive travel incentives around the globe
Compiled by Cathryn Castle
 
EVERY MONTH
75 Scuba Skills: BC Removal and Replacement at Depth: It's as Easy as Removing and Replacing a Jacket. Tips for an easy on and off By Lynn Laymon
85 Always Learning: Freshen Up: Outside-the-box Freshwater Diving. The author explores Florida's freshwater springs By Mark Twombly
79 Instructor Tips: Dry Run: Tips for Teaching Dry Suit Diving. Ways to help your students stay warm and dry with ease By Barry Shuster
99 Next Step: Dual Cylinder Scuba Setups: Double the Fun. Twin tanks can be twice as fun By Jan Neal
116 Dive Shop: Gear Bag Goodies
Compiled by Cathryn Castle
 
118 What's That?: Octopuses and Us, Part 1: Where They Live and How to Find Them. How to hone your octopus-observation skills By Dee Scarr
123 Premiere Classifieds  
125 Classifieds  
129 Dive Training Quiz: Test your knowledge of the information in this month's issue  
130 Final Check: What It Looks Like When... Your Weights are Positioned for Comfort. A new weight-management method that really works By Linda Lee Walden