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LOCKHEED MARTIN DIVE CLUB News June 2012 June Meeting Divers Alert Network with Michael Steidley Join us at our June 12th meeting to hear Michael Steidley tell us about Divers Alert Network. His topic for our meeting will be "I May be Bent, Now What?" Michael Steidley was born in Washington D.C. and moved to Southern California at the age of 6. He graduated from the University of Oregon in 1981 with a master of science degree in physical organic chemistry. Michael was first introduced to scuba diving in 1968 while he was participating in the Los Ange- les County Junior Frogman program. He became certified in 1974 and has been an active diver since. Steidley became a PADI Instructor in 1980 and has continued to actively teach diving since then, See ‘DAN’, page 13 celebrating his 31st year as a diving instructor. He is now an active PADI Course Director. Addition- ally, Steidley is an active NAUI Instructor and DAN We gather at 6:00 p.m.. Afterwards, we hold Instructor Examiner. He is also a Visual Cylinder our “formal” meeting covering CLUB business and Inspector Instructor Trainer for the Professional member trip reports, followed by our great door Scuba Inspectors Organization and a TDI Instructor prizes. Trainer for Semi-Closed Rebreathers, Decompres- sion Procedures, and Extended Range. Michael co-authored one of the first books ever written on dive computers - entitled Diving with Dive Computers and has co-authored four other div- ing texts. In addition, Steidley has published more than 100 articles about diving and diving equip- ment in such magazines as Skin Diver, the Undersea We meet at TGI Friday’s, which is located at Journal, NAUI News, and Discover Diving. He is 8955 International Dr, Orlando FL 32819 (phone also an accomplished underwater photographer, 407-903-9556). It’s easy to get to via Interstate 4 with hundreds of published photos and cover shots or the Beachline, between Sand Lake Road and the on magazines. latter. President's Column This month we are pleased to welcome Michael Steidley from Divers Alert Network (DAN). Mi- OMG, can it really be June already? How is chael will be presenting the signs and symptoms of that possible? We should start a new corollary to DCS, the recommended first aid, and what DAN’s the old saying: “Time flies when you’re having fun role is. It promises to be an interesting topic and diving!” very appropriate to our Club’s goal of diving safely. Please plan to attend. Since I wrote this column last, we have com- pleted some incredible diving throughout the Carib- If you remember way back in October of last bean. Grace’s trip to Little Cayman Beach Resort year we hosted Dr. Linda Walters at our Club meet- was a huge success and I can personally affirm that ing and were introduced to the oyster reef restora- everyone had a wonderful week both above and be- tion efforts taking place for the last 7-8 years in low the surface. Bill Barney’s trip to Venice Beach the Mosquito Lagoon. We made a few mats that was well attended and fun for all. Shark teeth and night and on April 7th of this year a group of Club fossils were indeed found and lunch was great. members and other LMMFC employees made a bunch more during a marathon event at the lovely Next up is Marie’s trip to Key West, and while Enchanted Forest in Titusville. We vowed to com- most of what happens there should remain there, plete the cycle, so on Sunday the 20th of May a I’m sure that a few pictures and stories will trickle few hardy souls arrived 6:15 AM at the Canaveral out! More is still to come though because we still National Seashore on the south end of New Smyrna have lots of activities planned. The Barracudas Beach to deploy the oyster mats. It was a perfect have a Jupiter Dive Center trip June 9-10, and Mike day to be on the water, in the water, and ankle deep McCleskey has the Blue Heron Bridge trip set for in the mud! The lagoon was teaming with life: July 21. And don’t forget that Trevor still has a few manatees, dolphins, rare oystercatcher birds, and slots available for the Disney Dive Quest adventure many fish and fowl. Supervised by Dr Walters, we in August. We’re also seeing interest in schedul- learned the proper way to weave a quilt of mats into ing a second Disney trip. Check your schedule and an artificial reef. To commemorate theClub ’s pri- make plans now to attend as many dives as possible. Al needs help filling up the tanks! See ‘President’, page 4 Your Club Leadership Committee Chairs President Activity Mike Gracey 407-356-5752 Gary Comstock 407-694-3490 Vice President Camera Mike McCleskey 407-808-6453 Art Beaulieu 407-888-5775 Communications Secretary Bill Paskert 407-356-2290 Nancy Wileden 407-971-8525 Equipment Bill Paskert 407-356-2290 Treasurer Meetings Al Wileden 407-971-8525 Open Director at Large Membership Al Wileden 407-971-8525 Al Wileden 407-971-8525 Merchandise Board of Directors Carol Comstock 407-694-3490 Safety and Training Bill Barney 407-356-6921 Darrell Seale 817-308-9764 Bill Paskert 407-356-2290 Webmaster Bill Paskert 407-356-2290 Darrell Seale 817-308-9764 June 2012 2 LOCKHEED MARTIN DIVE CLUB ‘News’ Lockheed Martin Dive Club 2012 Activity Schedule 120531 Partici- Deposit Cut-off Total Date Event Contact pants Amount Date Cost PARADISE LOCKHEED MARTIN event $30 SPRINGS March Mar 10 Al and Nancy Wileden 12-14 $30 includes & 10 407-616-6270, [email protected] lunch lunch in the woods OYSTER REEF LOCKHEED MARTIN event RESTORATION Mike Gracey Un- Apr 7 N/A April 2 Free Indian River 407-356-5752 limited Lagoon [email protected] LOCKHEED MARTIN event JUPITER DIVE CTR Mike Gracey Apr 14 12 $55 April 1 $55 Reef and wreck 407-356-5752 [email protected] LOCKHEED MARTIN event Apr 28- CAYMAN ISLANDS Grace Hampton Until $2,300 10 $500 May 5 Little Cayman 407-737-8999 full estimate [email protected] May 12, LOCKHEED MARTIN event $60, incl optional VENICE Bill Barney 12 $60 May 1 2 tanks hotel Shark Teeth Dive 407-695-7519 and wgts 5/11 [email protected] $415, incl KEY WEST LOCKHEED MARTIN event diving, EXTRAVAGANZA Marie Frank Until Jun 8-10 12 max $100 hotel, Vandenberg and 301-548-2366 full shuttle to reef dives [email protected] Duval St KSC BARRACUDA event JUPITER DIVE CTR Jun 9-10 Sharon Kennedy 12 $50 TBD $200 Reef [email protected] LOCKHEED MARTIN event BLUE HERON Mike McClesky Jul 21 BRIDGE 6-12 $0 TBD $0 407-273-6655 Shore dive [email protected] KSC BARRACUDA event Jul 25 RIVIERA BEACH $65 per $65 per John Lawlor 8 TBD & Jul 26 Lobster diving day day 321-459-3374 [email protected] CANADIAN LOCKHEED MARTIN event WRECK TREK Gary Comstock 10 or Aug 3-10 $325 Full St Lawrence River 407-694-3490 12 $1700 Wreck Trek [email protected] Aug 11- DANIA BEACH KSC BARRACUDA event TBD 10 $50 $250 12 Steve’s Reef Ginger Ballou LOCKHEED MARTIN event WALT DISNEY Trevor Campbell Aug 18 WORLD 12 TBD TBD TBD (407) 234-7147 rockcityphoto@ Dive Quest gmail.com KSC BARRACUDA event BOYNTON BEACH Sep 1-3 10 $100 TBD $300 Holiday Inn Express Phil Stasik [email protected] LOCKHEED MARTIN DIVE CLUB ‘News’ 3 June 2012 120531 Partici- Deposit Cut-off Total Date Event Contact pants Amount Date Cost KSC BARRACUDA event BONAIRE I Sep 8-15 Max Farley 12 $300 TBD TBD Buddies 321-452-1435 [email protected] KSC BARRACUDA event BONAIRE II Max Farley Sep 8-22 12 $500 TBD TBD Buddies 321-452-1435 maxfarley@cfl. rr.com LMDC CLUB PICNIC Orange LOCKHEED MARTIN event Until Sep 15 30-50 $0 $0 County TBD full Sportsman’s Club KSC BARRACUDA event ISLAMORADA Oct 6-7 John Lawlor 12 $100 TBD $300 Holiday Isle 321-459-3374 [email protected] DELEON SPRINGS Snorkel and LOCKHEED MARTIN event Oct 13 Any $0 None $0 excellent Sugar Mill TBD food! KSC BARRACUDA event Oct 18- COZUMEL Len Shaffer 8 $100 TBD $800 25 Hotel Cozumel [email protected] LOCKHEED MARTIN event LMDC PHOTO Tentative Mike McCleskey CONTEST Open FREE TBD FREE Nov 6 407-273-6655 T.G.I. Fridays-I Drive [email protected] LOCKHEED MARTIN event Tentative LMDC HOLIDAY Nancy Wileden Dec 2 PARTY 40 TBD TBD TBD 407-971-8525 Sunday Brunch [email protected] LOCKHEED MARTIN event Dec THAILAND $3,000 George McGuire TBD TBD TBD TBD Live-Aboard approx [email protected] President, from page 2 mary purpose and the diverse group which built it, be damaged by boat wakes. It was a good feeling the group proudly named the reef “Diver-city”. Our to know that in a small measure we gave something team completed the reef amazingly quickly accord- back to the environment. ing to our resident expert Dr Walters, so we were That’s all for this month gang. Until next treated to a wonderful tour of the lagoon and the ad- month, remember to take advantage of the won- jacent Turtle Mound Indian midden. In the process, derful opportunities we enjoy as members to dive we gained an appreciation for the uniqueness of the often and dive safely.
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  • Coral Growth and Bioerosion of Porites Lutea in Response to Large Amplitude Internal Waves

    Coral Growth and Bioerosion of Porites Lutea in Response to Large Amplitude Internal Waves

    View metadata, citation and similar papers at core.ac.uk brought to you by CORE provided by Electronic Publication Information Center Coral Growth and Bioerosion of Porites lutea in Response to Large Amplitude Internal Waves Gertraud Maria Schmidt*, Claudio Richter Bentho-Pelagic Processes, Alfred Wegener Institute, Helmholtz Centre for Polar- and Marine Research, Bremerhaven, Germany Abstract The Similan Islands (Thailand) in the Andaman Sea are exposed to large amplitude internal waves (LAIW), as evidenced by i.a. abrupt fluctuations in temperature of up to 10uC at supertidal frequencies. Although LAIW have been shown to affect coral composition and framework development in shallow waters, the role of LAIW on coral growth is so far unknown. We carried out a long-term transplant experiment with live nubbins and skeleton slabs of the dominating coral Porites lutea to assess the net growth and bioerosion in LAIW-exposed and LAIW-protected waters. Depth-related, seasonal and interannual differences in LAIW-intensities on the exposed western sides of the islands allowed us to separate the effect of LAIW from other possible factors (e.g. monsoon) affecting the corals. Coral growth and bioerosion were inversely related to LAIW intensity, and positively related to coral framework development. Accretion rates of calcareous fouling organisms on the slabs were negligible compared to bioerosion, reflecting the lack of a true carbonate framework on the exposed W faces of the Similan Islands. Our findings show that LAIW may play an important, yet so far overlooked, role in controlling coral growth in tropical waters. Citation: Schmidt GM, Richter C (2013) Coral Growth and Bioerosion of Porites lutea in Response to Large Amplitude Internal Waves.