Saturday, August 18. 2007
 The Potato Cod, Epinephelus tukula, is one of the largest members of the groper family. Cod Hole, out on the Northern Great Barrier Reef, is renowned for its family of curious Potato Cod who make this a special location for all who visit.
This was our last dive of the trip and we were not disappointed. It was a beautiful, picture-perfect dive. Big cod, sharks, rays and the most amazing coral gardens. We lingered here for as long as we dared as the current became stronger and stronger. Finally we decided it was time to return to the boat.
As all divers are taught we had done the right thing and dived up-current during the dive. By the time we decided to end the dive the current was so strong we could no longer make any headway anyway.
The swim back to the boat took only a couple of minutes and as we neared I could tell we only had one shot. Racing in at 6m, we caught the first shot line on the port side of the boat. The current was so strong now it started dragging us to the surface. Still hanging on to the port shot line at 3m we grabbed the starboard line of the deco-bar and there Jennifer and I stayed locked together flapping wildly in the current. A minute later we had worked our way up to the starboard ladder and back on board. Hearts racing, adrenalin pumping - but smug at the fact that we did not have to be chased all over the ocean by the tenders like some of the other divers - we said our farewells to the Potato Cod of the Cod Hole!
Until the next post, take care out there and keep diving ( if that's what you do! ) ...Robert
Photo: Robert Rath C5060 1/30s at f/6.7 ISO200 Inon UWL100-28AD Lens and D2000 Strobe
Wednesday, August 1. 2007
 This Lionfish or Red Firefish, Pterois volitans, was a real poser circling the top of the Pinnacle. Yes, another cliché photo but one begging to be taken!
As mentioned in a previous post, Lionfish are common to the Indo-Pacific region and considered every bit a part of our tropical waters. Its new arrival in the U.S.A. however is not welcome at all since being introduced by the aquarium trade back in 1992. Having no natural predators in other parts of the world means this beautiful creature has become an introduced pest to our friends bordering the Atlantic Ocean.
Until the next post, take care out there and keep diving ( if that's what you do! ) ...Robert
Photo: Robert Rath C5060 1/125s at f/5.6 ISO200 Inon UWL100-28AD Lens and D2000 Strobe
Sunday, July 22. 2007
 This beautiful nudibranch, Chromodoris elisabethina, or possibly , Chromodoris annae, was one of several different species we found at Pixie Pinnacle during our Minke trip.
The distinctive broken black stripe down the back is usually associated with ... elisabethina. See my previous entry for Chromodoris annae which clearly has no black markings. Please let me know your thoughts on the identification.
Pixie Pinnacle is an amazing site near Ribbon Reef #10. The pinnacle itself presents an amazing array of life and will often be the most attractive part of the dive. It is worthwhile though exploring the scree and rubble at the pinnacle's first base where we found a diverse world of small critters including Nudibranchs and Mantis Shrimps.
This little guy was down in the scree and rubble at 20m and reminded me of PNG "Muck Diving".
Until the next post, take care out there and keep diving ( if that's what you do! ) ...Robert
Photo: Robert Rath C5060 1/90s at f/4.8 ISO200 Inon UCL165AD Macro Lens and D2000 Strobe
Monday, July 16. 2007
 We have just returned from an absolutely wonderful trip to the Ribbon Reefs on the Great Barrier Reef. Three days of diving with Minke whales, reef fish, pelagics, sea turtles and even the odd diver have left us longing for the warm seas again now that we are back in Adelaide.
This one particular Minke swam straight towards me on several occasions, each time coming a little closer before bearing away. It was a magical experience, and at times I felt I almost wasted it being behind a camera!
Minke whales, Balaenoptera acutorostrata, visit the Ribbon Reefs every year during June and early July on their yearly migration. They are beautiful, inquisitive animals and actually seek out encounters with snorkellers and divers alike.
We dived from Mike Ball's Spoilsport and were impressed with their Minke education program as well as their adherence to a strict protocol used for Minke encounters.
For more information about Minke whales please visit http://www.minkewhaleproject.org/
Until the next post, take care out there and keep diving ( if that's what you do! ) ...Robert
Photo: Robert Rath C5060 1/90s at f/4.0 ISO200 Lens UWL100-28AD
Monday, July 9. 2007
 I can't believe it has been nearly a month since my last post! This last weekend we were in Edithburgh again with a group of nine Open Water students. Even with 11 degrees, wetsuits and less than 2m visibility, they were a fantastic and enthusiastic group. Well done!
Despite the teaching, the cold and poor visibility, we still managed a few "fun" dives and captured some lovely images. The photo for this post is a very awesomely cute Southern Dumpling Squid, Euprymna tasmanicas.
The amazing thing about the Southern Dumpling squid is that it produces light from an organ in its gill cavity. This organ contains bacteria that glow in the dark, and the dumpling squid uses this light to hide its silhouette from below by exactly matching the light from above. Very impressive camouflage technology!
On Sunday afternoon, my old mate David Bryant from Seapics http://www.seapics.com.au/ joined us for a dusk dive after having driven non-stop from Melbourne that morning.
David and some of his friends have come over to dive with the Whyalla cuttlefish, so it was a great chance to catch up and dive together again after some 12 or more years.
Until the next post, take care out there, keep diving ( if that's what you do! ) ...Robert
Photo: Robert Rath C5060 1/45s at f/8 ISO200 Lens UCL165AD Macro, Inon D2000 Strobe
Saturday, June 9. 2007
 Night dives under Edithburgh jetty mean seahorses. Lots and lots of them! Almost all of them will be the Short-Head Seahorse, Hippocampus breviceps. No matter how patient I was, this little one would not look at me, so this is the best of a batch where turning away means 'you can't see me'.
Two wonderful days of diving here have left me with quite a collection of new photos, so stay tuned for more.
Until the next post, take care out there and keep diving ( if that's what you do! ) ...Robert
Photo: Robert Rath C5060 1/90s at f/4.8 ISO100 Lens UWL100-28AD, Inon D2000 Strobe
Sunday, June 3. 2007
 This little guy from tonight's night dive was a real treat to play with. I believe it is Rhynchocinetes australis but it could also be Rhynchocinetes kuiteri, so please drop me a note if you know for sure. For other underwater adventurers, calling it a shrimp will do nicely.
The water is getting colder, but that simply means fewer people in the water and less silt in front of the lens. As much as I love taking people diving, there is nothing like having a little bit of space when wielding a camera.
A night dive is always a great way to prove to all the 'sensible' onlookers that the world is full of people doing crazy things. So, who'd actually want to be an onlooker on a beautiful calm moonlit Edithburgh night? Yes I agree too, the world is full of people doing crazy things!
Until the next post, take care out there, keep diving ( if that's what you do! ) ...Robert
Photo: Robert Rath C5060 1/60s at f/8 ISO100 Lens UWL100-28AD, Inon D2000 Strobe
Sunday, May 20. 2007
 Every once in a while someone very special comes along who reminds us how wonderful our world is and how dreams really do come true when you desire and believe. Little 13-year-old Rachael from California is someone who came into my world and did just that.
When she was 12, Rachael first met a Leafy Seadragon at the Monterey Bay Aquarium. A couple of months later they were gone and that day Rachael made a decision to learn to dive so she could see them for herself where they live here in Southern Australia. Rachael had already overcome quite a few obstacles in her life and she took on this new adventure with 100% conviction.
In January, Rachael certified as a Junior Open Water Diver. Last week, Jennifer and I took her for her long-awaited dive with the "Dragons". It was a wonderful experience getting to meet Rachael and her mum Susie. The weather stayed calm and the visibility was not too bad at around 3-4m. In all Rachael saw between four and five Dragons on her epic dive - but nothing will ever top the look in Rachael's eyes when that very first Leafy Seadragon came into view.
Until the next post, take care out there, keep diving ( if that's what you do! ) and remember that dreams REALLY DO come true ...Robert
Photo: Robert Rath C5060 1/90s at f/2.8 ISO100 Lens UWL100-28AD, Inon D2000 Strobe and Natural Light
Saturday, May 12. 2007
 This week's photo is relic from the archives, my very first photograph of a Leafy Seadragon, Phycodurus eques.
I was just starting out with digital underwater photography and keen to hone my skills using a 3.2 megapixel auto snapshot camera I paid $200 for. I used this little camera solidly for 18 months taking thousands of photographs. In that time I learned so much about that little camera and how to squeeze every last ounce of performance from it.
I still use this camera from time to time, especially when snorkelling. Well actually it's not the same camera as the original one met an untimely demise off the coast of Kangaroo Island but that's a story for another time!
Until the next post, take care out there and keep diving ( if that's what you do! ) ...Robert
Photo: Robert Rath Olympus C350 1/100s at f/14 ISO400 Internal Flash
Wednesday, May 9. 2007
 Ok, nothing to do with diving but something to make your life more enjoyable all the same.
Don't you just detest the way this pesky little message keeps re-appearing every 10 minutes after you do a Microsoft Update! Has it every been the cause of accidentally trashing all your open work? Here's how to change it to remind you once per day so you can keep working and keep your sanity.
Start / Run / gpedit.msc / Local Computer Policy / Computer Configuration / Administrative Templates / Windows Components / Windows Update / Re-prompt for restart with scheduled installations (if you need more detail than this you probably should not attempt it)
You can configure how often it will nag you, or completely disable it. Now for the bad news... This does not work for Windows XP Home Edition and you will need to restart your computer ( or restart the Automatic Update Service for the techies ) for the new setting to take effect.
Until the next post, take care out there and keep updating your computer ( if that's what you do! ) ...Robert
Sunday, May 6. 2007
 Well it seems that unless you can eat it no one bothers to give anything a common name so Ceratosoma amoena will have to do.
This shot is a classic example of having the wrong gear and making the best of it. All set up for wide angle, I came across this wonderful little guy no more that 15mm long. Removing the wide lens did not help as I simply could not get close enough.
Ok, time to compromise. Super-macro mode on the C5060 shuts down the flash system but at least allows me to get close enough. So now I am close enough but it is 20m down with no source of light! Using my largest aperture and the slowest shutter speed I could manage resulted in this 'not too bad' shot. Just imagine what the colours must have really been like. Oh, well... next time
Until the next post, take care out there and keep diving ( if that's what you do! ) ...Robert
Photo: Robert Rath C5060 1/8s at f/3.5 ISO100 Lens Internal Super-Macro Natural Light
Sunday, April 29. 2007
 This Blue Devil, Paraplesiops meleagris seems quite at home here in the silty wreckage of the S.S. Clan Ranald. One of our most beautiful (if not one of our grumpiest looking) local inhabitants, the Blue Devil finds itself at home in caves, under deep ledges and of course in conveniently located shipwrecks.
It was one of those dives where the visibility was not really good enough for those classic panoramic wreck shots but I still wanted to capture the feel of the wreck. Photos inside nooks and crannies don't usually work out that well but this time I got lucky. Placing my camera down into a hole and around the corner I took this shot completely blind. I believe 'The Force' was strong in me that dive!
Until the next post, take care out there and keep diving ( if that's what you do! ) ...Robert
Photo: Robert Rath C5060 1/30s at f/8.0 ISO100 Lens UWL100-28AD Inon D2000 Strobe
Friday, April 27. 2007
 The Rough Bullseye, Pempheris klunzingeri. is endemic to all Australian temperate waters. Usually seen in caves or under ledges around inshore, rocky reefs to depths of around 20 m. The species is also known as Klunzinger's Bullseye.
This was such a picturesque image I had to capture it on a recent dive on the wreck of the Clan Ranald. At around 20m and in an area of strong tidal currents, 'The Clan' is a magnificent dive and well worth the effort to get to. Arguably South Australia's best historic wreck dive, the S.S Clan Ranald sank in 1909 with the loss of at least 36 lives. The site has been declared an historic shipwreck under the Historic Shipwrecks Act 1976 and is fully protected.
Until the next post, take care out there and keep diving ( if that's what you do! ) ...Robert
Photo: Robert Rath C5060 1/45s at f/3.5 ISO100 Inon D2000 Strobe and Natural Light
Wednesday, April 18. 2007
 Erna's Basketstar, Astroboa ernae is one of the most amazing starfish you will ever meet. Found almost everywhere in Australian waters from temperate to tropical and down to around 50m.
Basketstars love reefy areas with strong currents so they can hang on while feeding. At rest, a star may be no bigger than a large fist but when out feeding may extend up to a metre across with arms outstretched and feeding tentacles extended.
This guy was a delightful treat to find at the end of a recent dive on the Troubridge Point reefs. Not far around the coast from Edithburgh, Troubridge Point offers a wonderful wild and rugged alternative to the usual cosy jetty dive!
Until the next post, take care out there and keep diving ( if that's what you do! ) ...Robert
Photo: Robert Rath C5060 1/45s at f/3.5 ISO100 Inon D2000 Strobe and Natural Light
Tuesday, April 10. 2007
 This photo taken last night should have been called "Master of Disguise" or "Guess What". Peering closely amid the algae and the silt you will see a Short-Head Seahorse, Hippocampus breviceps. This photo is an excellent example of how these little guys make themselves virtually invisible to both predators and photographers.
The Short-Head Seahorse is very common in the waters of southern Australia. They love areas that have good weedy habitat and can generally be found attached to seagrasses, sargassum weed and amongst the growth on jetty pylons. They can also be found in sponge gardens, especially on sponges in deeper water. They often occur in small groups and at night time they can be found congregating high on the weed to avoid predators. They are known to feed on small species such as mysids. They can be found from shallow water to at least 15 metres deep. They breed on a monthly cycle throughout summer and produce about 50 to 100 eggs in a brood. The Short-Head Seahorse grows to a maximum size of approximately 10cm.
Yes, as you guessed it we had a sensational Easter at Edithburgh with some great diving and great photos too, so stay tuned for more.
Until the next post, take care out there and keep diving ( if that's what you do! ) ...Robert
Photo: Robert Rath C5060 1/45s at f/6.7 ISO100 Inon D2000 Strobe
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