Apo Island Bubbles

[klausi]

If you would like to learn more about the volcanic bubbles which you can see underwater in Apo Island, please check out this interview with my friend Jeffrey Munar, who is a marine geologist at one of the Philippines' best geology labs, at the University of the Philippines, Dilliman, Marine Science Institute. He talks about the kind of gases which bubble out, and the way these bubble fields develop:

 

[tridacna]

Interesting. I saw those same bubbles emerging from beneath some huge Acropora Hyacinthus corals in Apo Island. Did not seem to inhibit their growth?

 

[Centrals]

The underwater hot spring at Chicken Feather Island is where you can experience small streams of hot water flowing out of volcanic cracks.

Chicken Feather Island is a 30-minute boat ride from Puerto Galera and Anilao, so most dive centers make whole day trips here, with a picnic lunch on the beach between dives. At th...

philippines.greatestdivesites.com

Dived there few times.
Anyone diving in PG should enquire a special trip.

 

[klausi]

Interesting. I saw those same bubbles emerging from beneath some huge Acropora Hyacinthus corals in Apo Island. Did not seem to inhibit their growth?

Yes, there are some bubbles from below the reef, I suspect that it's a matter of dosage. The area with a lot of corals has little life but for some sea cucumbers.