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Nature makes for strange companions

During a recent dive in Mucky Pirates Bay, I came across an upside-down jellyfish lying in the sand. I wasn’t sure whether it was alive or dead, so I gently prodded it with my muck stick. Imagine my surprise when it started running across the sand! What I didn’t realize was that there was a decorator crab underneath who had adorned this jellyfish like a hat to protect itself from predators. I found another one on a subsequent dive, so this must be fairly common. It’s clear what benefit the crab gets from this relationship…not sure if the jellyfish is too happy about the arrangement.Save

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Sarah & Clement Enjoy Menjangan

Sarah & Clement came to Pemuteran to try diving, so Captain Paul taught them the basics–a little theory and some in-water practice. After doing a Try Dive with Sea Rovers, you can dive with an instructor/DM for up to 14 days to a maximum depth of 12 meters. They went out on one of our regular trips to Menjangan today under the watchful eye of Abdul. From the photo, it looks like they’re having a fantastic time.

dive boat, Sea Rovers guests

2 boats heading out for diving & snorkeling adventures

 

 

Menjangan, Sea Rovers guests, Bali, Indonesia

Sarah & Clement along the wall at Menjangan

 

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The Povey family’s first day with the Pirates

The Povey’s arrived in Pemuteran ready for a range of experiences–snorkeling, Discover Scuba diving, scuba diving refresher and an advanced dive to 30 meters at the renowned site Temple Garden. The Pirates at Sea Rovers can do it all. The guys on the boat were heading out for diving and snorkeling; the guys on the beach at Mucky Pirates Bay were doing Discover scuba and a refresher dive. Their next adventure will be to charter a boat for a personalized trip to Menjangan. Enjoy!

 

 

Killer Robot Reef Rangers

Robotic technology is being developed to help rid the reefs of invasive species–the crown of thorns starfish on our side of the world and the lionfish in the Atlantic and Caribbean.

Robot designed to kill the invasive crown of thorns

From Scientific American:

The Great Barrier Reef will have a robotic protector beginning this winter. The underwater autonomous vehicle is programmed to patrol the massive living structure in search of destructive crown-of-thorns starfish (COTS), which it then kills by lethal injection. These starfish prey on coral polyps, and although they are native to the reef, their population has exploded in the past few years, possibly because of overfishing of their natural predators. Click here to read the full story.

Our friends in the Atlantic and Caribbean also have a serious problem with the invasive lionfish. Another robot has been proposed to help with this predator.

Prototype of the lionfish killer robot

From Live Science:

The robotics company iRobot, known for creating the autonomous and endearing Roomba vacuums, is taking steps to make a clean sweep of lionfish in the coastal waters of the Atlantic Ocean, with a robot designed to target and dispatch the invasive fish. Click here to read the full article

 

 

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