The upside of this cooling is that the larger oceanic sharks start appearing. We saw a group of 6 silvertip sharks and 4 galapagos sharks patrolling “fish alley” where the large schools of jacks and bonitos hang out. There seems to be a hierarchy in the shark world whereby silkys are displaced by galapagos which in turn are displaced by silvertips.
Read MoreOn the trip out to the last dive guests were treated to the sight of a manta feeding on the surface at the dive site. We observed two separate incidents of interesting shark behaviour during the day.
Read MoreTwo whale sharks. One was the size of a bus! 45 – 50 feet long and a little brother of maybe 21 feet. We also got visitedby giant manta rays. It was a good start and we had the whale sharks around the rock for the rest of the day. We also saw whitetip reef sharks of course but just a few Galapagos and silvertip sharks – likely because of the relatively warm water?! A good day. At night with no moon we were surrounded by about a 50 silky sharks chasing flying fish in the floodlights of the Nautilus Explorer.
Read MoreI often get asked why we don’t offer more night diving at Socorro and San Benedicto Islands (Islas Revillagigedos). Quite frankly, the ever-present silky sharks become overly inquisitive once the sun goes down and switch over into “hunting mode.” Still, I always try to offer at least one snorkelling opportunity after dark.
Read MoreWe’ve been watching one poor old Galapagos shark with a fish hook and leader stuck in his gill plate all season. I’ve become quite certain that Galapagos sharks are resident rather than transient because we see this guy every time we dive Roca Partida. The sad thing is that he has been getting skinnier and skinnier and now looks quite emaciated. The alarming thing is that his behaviour is changing and he is now coming in VERY close to divers. He swam up to me this afternoon and it’s the first time that I had a gut feeling that I had better “watch out” around him. An understandable behaviour I guess if he is sick and starving to death. Damn, I wish there was an easy way to get rid of the illegal longliner fishing boats.
Read MoreNone of us are ever going to forget the 1/2 million booby birds (and their incredibly cute chicks) that we saw, the 5 million bright orange land crabs, the amazing number of moray eels and their bizarre behaviour, the thick “clouds” of black and big-eye jacks, heavy schools of black triggerfish and rainbow runners, the endemic iridescent blue Clipperton angelfish and the coconut groves, white sand beaches and beautiful setting.
Read MoreFar and away the coolest thing we saw on our afternoon dives were spawning sea urchins! Yup, we happened across in-water sexual reproduction as the urchins released sperm into the water column. It looked almost as if the urchins were sending up smoke signals with puffs of white “smoke” (sperm) spiraling up from the top of these amazing echinaderms. You have to think that it is a very long shot that eggs are going to get fertilized this way but that’s what happens.
Read More
