Tag Archives: Coral
A juvenile wartskin angler (A. maculatus) hiding amongst the substrate.In the fish-eat-fish world of the coral reefs, it can sometimes be beneficial to look like something you’re not. This strategy, known as mimicry, is employed by a wide variety of marine fish and other organisms in order to garner some sort of survival edge. Not only is mimicry exhibited by numerous fish species, but it also takes on many different, fascinating forms, such as: A harmless or helpless fish imitating a dangerous or distasteful organism A predatory or otherwise dangerous fish imitating a harmless one Using ingenious camouflage to deceive predators or prey items Let’s explore some of these mimicry styles a little further with some examples of species that put them into practice. That’s right, I’m bad! On the coral reefs, there are many examples of innocuous marine fish pretending to be much more nasty or noxious than they really are. Take the saddled filefish (Paraluteres prionurus) for instance. This fielfish is almost identical in body shape, coloration, and patterning to the saddled toby (Canthigaster valentine), a puffer species that contains deadly tetrodotoxin in its tissues. Wary predators are apt to leave it alone despite the fact that it’s actually edible. A juvenile P More: The Many Faces of Mimicry in Marine Fish… More:
Gorgonians are a type of soft corals easily distinguishable by the complex branching shape, which has also probably inspired their name, coming from the Gorgon Medusa- a creature from the Greek mythology that had hair made of venomous snakes. The existence of Medusa outside myth might be debatable, but gorgonian corals do exist and decorate our ocean with complex patterns and vibrant colors.
http://www.youtube.com/watch?v=mG2cT1ZYX8Q This is the 630-gallon (2,400-L) featured reef in the Aquarium Portrait department of the November/December Issue of CORAL, written by Ab Ras. Owner Urbain Appeltans is a noted European filmmaker whose aquarium has been honored as Reef Aquaarium of the Year in Belgium. Lighting supplied by banks of Aqua Ilumination (AI) Sol LED units. Credits: Video: Stuart Bertram’s YouTube Channel / D-D the Aquarium Solution. Aquarium: Urbain Appeltans, Opglabbeek, Belgium MORE: CORAL Video: Urbain Appeltan’s LED-Lit Belgian Reef… More:
A new article reveals coral animals produce the ‘smell of the ocean’ — influencing cloud formation and protecting themselves against rising seawater temperatures.Australian marine scientists have found the first evidence that coral itself may play an important role in regulating local climate.
They have discovered that the coral animal — not just its algal symbiont — makes an important sulphur-based molecule with properties to assist it in many ways, ranging from cellular protection in times of heat stress to local climate cooling by encouraging clouds to form. These findings have been published in the science journal Nature. Read more here!… More:
Good morning friends, I have something new for you all today called Spiny Flower Coral, Mussa angulosa and instead of just one single specimen I found a whole mound of these cool creatures! You would think after 10 years of diving with a camera that I would have already seen these but this is not the case. I have found single flower corals before but this is so cool to see so many growing together on a big mound in just 40 feet of water. If you look closely the colonies are formed of large fleshy polyps with rough blemished texture. Although the polyps are well separated on the tips of a branched structure, their expanded fleshy tissues press against adjacent individuals so tightly that an overall colony appears as a solid mound as you see above. The polyp’s skeleton is composed of numerous sharp spiked plates and is the source of it’s common name. MORE: Spiny Flower Coral, Mussa angulosa, Stony Corals… More:
Good morning from the Caribbean. Sorry about the no-blog yesterday but since it was an all out island holiday I took the day off from anything involving a computer! We started our day off yesterday with a nice 2 hour walk with the dogs along the shore of Saint Joris Bay, we collected beach treasures, the dogs collected sand! My find of the morning was a new piece of driftwood that will be used for our existing “driftwood Christmas tree”, the old trunk on last years tree was curved and not tall enough, this one should be perfect. MORE: Endangered Corals, Elkhorn Coral, Acropora palmata… More:
For someone that loves acropora as much as I do, I sit here tonight staring at my beautiful 250 gallon mother colony system wondering how it ended up seventy five percent full of montipora colonies. When did this sneaky addiction to montipora over take my desire to keep acropora? I know that I originally started keeping montipora colonies for more practical reasons years ago, because they generally grow faster than acropora and tend to be easier to keep. As a coral farmer these are the kinds of corals I look for so they earn more real estate in my… More:
If you are unfamiliar with the Tidal Gardens coral farm, much of our aquaculture process depends on the fast growth of our corals and the long-term health of our colonies. Coral nutrition is a major factor. We constantly experiment with different foods for our coral. Corals that are fed consistently have dramatically improved coloration and display much better polyp extension. It’s always interesting to see coral colonies that we have had for years sitting next to colonies we recently acquired. They look like completely different animals in many cases. As much as we like to stuff our corals with food, some corals are not as receptive to feeding as others. More: Feeding Corals with Sustainable Aquatics Hatchery Diet… More:
Last year this time, the Center for Biological Diversity filed a petition with the National Marine Fisheries Service to protect the Orange Clownfish and seven other reef fish under the Endangered Species Act. The Service failed to respond to the petition, and so this year, the Center filed a formal notice of intent to sue the Service for its failure to act. The reef fish in the petition include the orange clownfish, the yellowtail damselfish, the Hawaiian dascyllus, the blue-eye damselfish, the black-axil chromis, Dick’s damselfish, the reticulated damselfish and the blue-green damselfish. A grim reality is that climate change and increasing ocean acidity are damaging our coral reefs and threaten to destroy most coral reefs before mid-century. All the petitioned fish are habitat specialists, relying on live… More: