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At a certain time in the early morning or late afternoon, you could be almost assured a seeing small schools of Caribbean Reef Squid passing overhead while diving. Then, if you were really lucky and coming up to the surface anyway, you could try and sneak up on them to take their pictures. As long as one didn't move to fast they might let you get within feet, for some wonderful photo-ops.
As nice as some photos turn out, so ugly others can turn out. This photo really doesn't do justice to beauty of the reef.
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The Reefs of Bermuda
Bermuda has been classified as an atoll, but more correctly it should be called a pseudoatoll. This is because the process that formed Bermuda is different than the process that forms an atoll. In Bermuda, sands have collected, been compressed, and turned into rock by a process known as lithification. The land formations of Bermuda are much taller than the formations of the true Pacific atolls. More info Bermuda's Coral Reefs
Found near mangroves and piles for a house that was never built. Bocas Town, Isla Colon, Bocas del Toro, Panama
Photo: Rodolphe Holler, Tahiti Private Expeditions
Grey Reef Shark
French Polynesia
Photo was donated to Shark Defenders for non-commercial uses related to the advocacy of shark sanctuaries and the proper management of shark and ray species. Reproduction is strictly forbidden without the express permission of the owner.
with juvenile Bluehead Wrasses. Family: Scaridae. Punta Vieja, Isla Bastimentos, Bocas del Toro, Panama
Ringrazio i miei fantastici compagni sub Massimo Galletti e Giovanni Ruggeri con cui ho realizzato questa foto
Ocean
Coral reefs underwater structures made from calcium carbonate secreted by corals the most diverse and beautiful of all marine habitats fully marine, underwater ecosystem forms underwater structures in the fossil record this diverse ecosystem of more than 400 million years ago, corals are extremely ancient animals that evolved into modern reef-building forms explores some of the problems and diverse tropical marine life.
It's best to photograph this interesting area late or early in the day, when the colours fully come out. Remember to go at low tide.
Long Reef is unique in the Sydney region, as this headland is primarily made of Bald Hill Claystone. Mostly, it's a soft reddish rock, formed in the early Triassic period. The maximum thickness of this rock type is 20 metres.
An interesting variety of sedimentary rocks may be viewed at Long Reef. There's much iron influence here, most evident in the haematite. Much of the rocks here are of the Narrabeen Group of Sedimentary Rocks. There's also volcanic elements, such as a dyke of Jurassic dolerite. It was two metres tall, but it's since been partially removed for industry.
An abandoned copper mine is at Long Reef. A tunnel was dug into the purple claystone to explore for copper. It was situated along the claystone, between the red-brown oxidised rocks and grey-green reduced siltstone.
There are masses of fossils in the grey coloured claystone, however, they are mostly strands of vegetation and are not particularly impressive.
The commonest of the fossils being a primitive plant, known as the horsetail, "Phyllotheca". It's in the form of a stem with a whorl of leaves. These plants grew like reeds, which indicates they were swamp dwellers.
Less often, fossils of a shrub-like forked leaf "seed fern" (Dicroidium) may be seen. One more interesting fossil is of a large amphibian. The animal would have been around a metre long. Named "Bulgosuchus gargantua."
The commonest rock types are shales, sandstone and claystones. The sandstones are described as "lithic" meaning they have plenty of other rock fragments within.
The sands of the nearby beaches are orange in colour. Black coloured influences in the sand may be seen along the nearby beaches. Prominent of these dark minerals is rutile. Others include ilmenite and monazite. Geologists suggest these are derived from ancient rocks from the Broken Hill region.
Ages ago, I first visited this area in a school excursion. The school teacher was impressive intellectually. However, he mis-read the tide listings. And we went at high tide. He also said that so many of the fossils have been removed that there's hardly any left. This latter remark is barely true, as the rock keeps crumbling away and more fossils are revealed.
My 90 gallon saltwater reef aquarium. This photo was taken a few years ago...the corals have grown quite a bit since then. I constructed the cabinet by modifying a piece of furniture originally imported from Indonesia. The tank is 6 or 7 years running now and is very stable and relatively low maintenance. I've had most of the fish and corals 6-10 years (they were in a smaller tank originally). The equipment running this tank is pretty low tech compared to a lot of reefers. I prefer to keep it simple. Lighting is (2) 250 watt 14K HQI metal halides, plus (3) actinic CFL's. Other than a skimmer, there is no filtration (the deep sand bed and live rock does it all biologically). Main circ pump is an Iwaki 40rlxt. I run a chiller, tho it's not needed 90% of the time. The only supplement I add is kalcwasser. I never test the water (bad I know, but I can tell if things are off by observing the animals, algae growth rates, etc). I replace about 20% of the water once every 4-8 weeks (depending on how lazy I am) with real seawater from Scripps pier. I use R.O. for evap makeup water. The corals are a mix of softies, LPS and one large table acropora. Fish: Purple Tang, Herald's Angel, mated breeding pair of Ocellaris Clowns, Fiji Devil (damsel), plus cleaner shrimp, hermits, emerald crabs & snails. I lost the Bangai Cardinalfish in the photos.
An amazing reef plus sandbar just north of big Negros Island in the Philippines. Sagay City is the jump-off point to get to the reef.
Many thanks to the Northern Negros State College of Science and Technology for hosting me!
Photo of my Dodge Dart shot at Capitol Reef National Park at sunset. Currently roadtripping in Utah for a week.
Photo by Michael Brunk / nwlens.com
It was nearly dark when we found this guy. It was in a area of fresh water a fair way from the coastal flats that we have seen them before. Looks like that's where it was going to settle for the night.
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Eastern Reef Egret. Egretta sacra.
The Eastern Reef Egret is also called the Eastern Reef Heron, and the dark form the Blue Heron or Blue Reef Heron.