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By admin - Posted Oct 26, 2009 09:10 PM

Volunteers haul 357 pounds of trash off South Florida reefs

Volunteers haul 357 pounds of trash off South Florida reefs

This fire coral (Millepora alcicornis) is entangled with a plastic grocery bag on Graceland Reef, Florida.

Plastic bags, fishing lines and lures, beer cans, diver weight belts, sunglasses, and even a set of dentures were part of the take.

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High levels of dissolved inorganic nitrogen increase coral bleaching probability

High levels of dissolved inorganic nitrogen increase coral bleaching probability

Mild light-induced bleaching of Acropora microphthalma spurred by high nitrate and low phosphate.

A new researched published in Nature finds high nitrogen level in conjunction with limited phosphate level results in PO4 starvation to zooxanthallae. This nutrient imbalance consequently increases the probability of temperature and light-induced bleaching. Might this help explain the "Zeovit phenomenon"?

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Coral Guardian: a non-profit reef conservation organization

The Coral Guardian is one of many non-profit organizations whose aim is to conserve coral reefs. What sets Coral Guardian apart is their focus on the aquarium trade by developing sustainable, autonomous aquaculture programs in local communities at Bali, Indonesia.

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Invasive brittlestars discovered in the Atlantic

Invasive brittlestars discovered in the Atlantic

Fig. 1 a The disks of O. mirabilis (≈2 mm diameter for ophiuroids in the figure) and the arms (~5 times as long) contrast in color with the host species b Leptogorgia punicea, c Gorgonia ventalina, and d Mycale angulosa.

Brittlestars of the genus Ophiothela inhabit the Pacific and heavily infest gorgonians and sponges in multitudes. Now these same brittlestars are found in Atlantic waters stretching from Brazil to the Caribbean. Where did they come from?

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CAD Lights NR-1 Nano Reef Bio-Reactor

Nano reefkeepers want bio-reactors too, and CAD Lights has designed their new NR-1 reactor to provide carbon source for aquariums from 5 to 50 gallons. The diminutive 12" tall, 2.5" diameter fluidized bio-reactor can be operated externally or fully submerged.

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Stony corals catch zooplankton within days of settlement and metamorphosis

Stony corals catch zooplankton within days of settlement and metamorphosis

One 8-day-old Seriatopora caliendrum recruit capturing (a), subduing (b), and ingesting (c–d) live Artemia nauplii over 14 min.

Recent research by the California State University, the National Museum of Marine Biology and Aquarium, Taiwan and National Dong Hwa University, Taiwan, documents how quickly settled coral polyps begin capturing and eating zooplankton. The results indicate they begin feeding within days of settlement and metamorphosis.

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Large swim bladders ... the better to hear you with

Large swim bladders ... the better to hear you with

3D reconstructions of the swim bladder and the otoliths of P. polleni displaying the anterior projections of the swim bladder to the inner ear.

What do swim bladders have to do with hearing? Researchers have found that fish with larger anterior swim bladders may actually hear better. Our apologies to bottom-dwelling blennies and plecos for the bad news.

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Ecotech's TIR lenses - Hands-on review

Ecotech's TIR lenses - Hands-on review

The TIR lens (left) vs the stock metalic reflector with acrylic shield (right).

We offer a quick hands-on review of Ecotech Marine's new TIR lens replacement for their Radion LED lights by comparing it to the "stock" reflector. In a nutshell: Yes, the TIRs are noticeably brighter.

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Joint mission discovers record depth for Lophelia coral on Gulf of Mexico energy platforms

Joint mission discovers record depth for Lophelia coral on Gulf of Mexico energy platforms

Two Lopehlia coral colonies growing on a small metal on a portion of the subsea completion structure in block Mississippi Canyon 355 at a depth of about 1,500 ft. Red laser beams, projected from the ROV, represent a separation of 10 centimeters (~4").

A team of federal and university scientists on a 10-day expedition in the Gulf of Mexico has discovered Lophelia coral growing deeper than previously seen anywhere in the Gulf.

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Aquarium industry donates over $40,000 to Coral Restoration Foundation

Eight aquarium companies including EcoTech Marine, Two Little Fishies, Piscine Energetics, Boyd Enterprises, Quality Marine, and Ecoxotic have donated over $40,000 to CRF to plant elkhorn and staghorn Acropora in Florida.

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Nebraska Aquatic Supply one year anniversary shindig

Nebraska Aquatic Supply one year anniversary shindig

Nebraska Aquatic Supply turns one year old

Happy first anniversary to our favorite LFS in Nebraska! Nebraska Aquatic Supply will hold a two day celebration event on August 25-26 featuring many speakers and giveaways. Heartland reefkeepers should consider making the trek out to NAS.

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First documented male and female pillar coral spawning in Florida

First documented male and female pillar coral spawning in Florida

Kate Lund, a research scientist, observes the pillar coral as it is spawning in the Upper Keys.

This is great news for the Florida state-listed threatened species in the Pillar Coral Forest just off the coast of North Key Largo.

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Build your own underwater ROV using Lego Mindstorms NXT's [video]

Using Lego Mindstorms NXT's, various Lego bricks, PowerFunctions motors, and a pair of NXTBees, an industrious individual has created an underwater ROV that is controlled wirelessly using a laptop with an XBOX 360 controller.

Incidentally if you want to build your own higher end underwater ROV, check out our blog post on the OpenROV project.

(via Make)

New Ecotech Marine Radion TIR Lenses introduced

Ecotech has announced the TIR Lenses for their Radion LED lights. For $30 per pair of lenses, you can increase your Radion's peak output by 45% with a simple DIY retrofit. We share Ecotech's official announcement after the jump.

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How about 3D printing your own liverock! [video]

How about 3D printing your own liverock! [video]

Interesting shapes printed with the Stone Spray technology.

Want a unique shape that you cannot find anywhere else? You could sculpt it yourself out of Aragacrete ... or you could 3D print it.

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