Recent Articles

  • Your Basic Certification: Licensed to Learn

    Your Basic Certification: Licensed to Learn

    Like a lot of divers I participate in the diving community in several ways. One way is by serving on the Board of Trustees of the Reef Environmental and Educational Foundation (REEF). REEF’s membership is free, and we welcome anyone who cares to join.  REEF volunteers survey fish populations around the world, including many sites in California. The results are …Read More »

  • Bunny Love: The California Brown Sea Hare

    Although the California brown sea hare bears a faint resemblance to a rabbit, it is actually a very large sea slug. A member of the phylum mollusca and class gastropoda, it is a cousin of both nudibranchs and octopuses. Like nudibranchs, brown sea hares are hermaphrodites. Like octopuses, they can produce ink.  The brown sea hare has a reticulated color …Read More »

  • New Year, New Adventures — Tips for Getting More Out of Your California Diving in the Year Ahead

    The coming of the New Year is a time to expand new options and opportunities in every avenue of our lives. More than ever this New Year has multiple opportunities with which to grow in your avocation of scuba diving in California. Here we will look at some obvious and not so obvious solutions and ideas for improving your underwater …Read More »

  • 33rd Annual Avalon Underwater Cleanup February 22

    The Catalina Island Conservancy’s 33rd annual Avalon Underwater Cleanup will takes place February 22, 2014. During the event, members of the diving community are invited to help clean the seafloor of Avalon Harbor. This is the only time diving is permitted in the harbor. Over the years, the cleanup has grown to become one of the most popular dive events …Read More »

  • Careers in Diving, Part 1

    Careers in Diving, Part 1

    Diving is an important tool for many people in their work. For some, such as sea urchin divers, it’s their most important tool for getting the job done. For others, such as police divers, it’s just one in a selection of tools. Over the past year, we have done video interviews with 14 different people who are professionally employed in …Read More »

  • The Sequential Life of the California Sheephead

    The Sequential Life of the California Sheephead

    Many marine animals are hermaphrodites. Nudibranchs, for instance. It is thought that being able to mate with any same species creature encountered on the reef gives hermaphrodites a better chance of reproducing.  Many fish, gastropods and plants are sequential hermaphrodites. Instead of having both sexes mature in their bodies at the same time, they start life as one sex and …Read More »

  • Homecoming to California Diving

    Homecoming to California Diving

    I have just returned home from Orlando, Florida‚äîwhere I did not go to Disney World. However, I did attend the annual Diving Equipment Marketing Association (DEMA) trade show. This “wasn’t my first rodeo,” as a DEMA show attendee. I’ve been to this event thirty-some-odd times and it’s easy to fall into the “same show, different year” mindset.  But not this …Read More »

  • Tunicates: The Surprisingly Complex Sea Squirts

    Tunicates: The Surprisingly Complex Sea Squirts

    Of all the marine animals in the world, tunicates are vetebrates’ closest relatives and that includes the class Mammalia (us). Both tunicates and mammals are members of the phylum Chordata. Both have a notochord (a cartilaginous skeletal rod) when they are embryos. The notochord is lost as most tunicates grow older but it segments and turns into a backbone in …Read More »

  • A Committed Commuter: The California Gray Whale

    A Committed Commuter: The California Gray Whale

    It is early fall in the northern hemisphere as I write this. By now a significant number of California gray whales (Eschrichtius robustus) have reached the coastal waters of the Pacific Northwest on their southward journey from their feeding grounds in the Bering and Chukchi Seas to a series of coastal lagoons off the west coast of Mexico’s Baja peninsula …Read More »

  • Ocean Art Underwater Photo Competition Deadline November 14

    Ocean Art Underwater Photo Competition Deadline November 14

    This is your last chance to send in submissions to the 2013 Ocean Art Underwater Photo Competition sponsored by Underwater Photography Guide. The competition is open to underwater photographers of all experience levels. There are 12 categories in this contest: Cold/Temperate Water Compact Camera (three categories) Divers/Fashion Macro Marine Life Behavior  Marine Life Portraits Novice DSLR Nudibranchs  Super Macro Wide-angle Prizes valued …Read More »

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