Similar to bees distributing pollen, parrotfish spread zooxanthellae across stretches of coral reef. These zooxanthellae "reservoirs" are necessary for coral settlement and highlight yet another way that overfishing can harm coral reefs.
If I was to describe a group of animals which work together to hunt prey - where one individual assumes a hunter/chaser role while others in group herd their prey - what animal comes to mind? Lions? Wolves? Dolphins? A new study discovered tropical goatfish also hunts in coordinated groups.
Sustainable marine aquarium fisheries in Hawai'i has become a big issue for 2011. Ret Talbot is currently on assignment for MASNA to investigate the marine aquarium trade in Hawai'i and the latest resolution seeking a statewide ban on all aquarium collection. His blog series is a must-read for all aquarists.
How about three heads? Scolymia australis usually occur as solitary polyps, but every once in a blue moon, we encounter colonies with two or more mouths. Here are three unique multi-polyp Australian "Ultra" and "Grade A" Scolys imported by ACI Aquaculture.
Marine Depot has posted the first photos for the unboxing of Ecotech Marine's Radion retail package. They are anticipating arrival of their first shipment as early as this Friday, with half of the initial shipment already sold to pre-orders. The Radion Premium Hanging Kit is also expected to arrive at the same time. View more photos after the jump.
Top photo is of a rarely fished reef. Bottom photo after seaweed begins its invasion. Photo Credit: E. Hunter Hay (top); I. P. Markham (bottom)
Seaweed can definitely have the "touch of death" when they come into contact with corals - choking out and killing once lush areas and turning them into algae wastelands. Are the reefs simply being choked out by the invasive seaweed or are they also being chemically attacked?
Who owns the Ponape Birdsnest (Seriatopora hystrix)? Some people report their specimens grow very quickly while others report virtually no growth for their corals. A recent study may explain the disparity in your experience with S.hystrix.
On this week's episode of Reef Threads, Gary Parr and Christine Williams interview Richard Ross and Matt Wandell about the work that they are doing at the Steinhart Aquarium in San Francisco, CA.
Greco Aqualabs C6 is a new coal based granular activated carbon available through ReadyAquatics.com. This phosphate-free GAC is marketed as "the best quality and best value carbon" capable of removing more chemicals than other GACs available to aquarists
A lone upside-down jellyfish (Cassiopea sp.) that had been placed in a dedicated tank at Reef HQ (north Queensland) was one day found to have over 200 babies swimming in its tank in an act that looked like "immaculate conception." How was this possible?
The new, free issue from our friends at Redfish (Australia) is now available for download. This eight-article issue includes a wide range of freshwater and saltwater topics ranging from reef substrates to wild rainbowfish to an article about the care of saltwater predator fish. This is Redfish's biggest issue to date! Did we mention it's free?
We have been recently blessed with an influx of high quality reef videos. With personal video technology rapidly advancing (from cell phones to dSLRs), many more are sure to come. Here is another beautifully shot, beautifully produced reef video.
It's not often that we come across these bizarre "piebald" aberrant Zebrasoma sp. in the hobby, and the folks over at LiveAquaria.com have this beautiful fish in captivity about to hit the Divers Den WYSIWYG section of the site.
Earlier this year, we learned a bacterium from human excrement is the cause of White Pox - a disease that has killed scores of Elkhorn Acropora Coral in the Caribbean reefs. A novel solution may help restore and protect these corals from bacteria ... by using bacteria!
Guppies are spectacular fish in aquariums, but they can quickly disturb native waters if just one female slips out in the wild. Photo by Alice Chaos
In more guppy news, these tropical fish - native to Central and South America - now inhabit outdoor waters on every continent except Antarctica. Science explains why: Females are able to store sperm for months on end, and all it takes is a lone female to colonize a waterway. This also serves as a cautionary reminder.