Main Menu
Join Undercurrent on Facebook

The Private, Exclusive Guide for Serious Divers Since 1975 | |
For Divers since 1975
The Private, Exclusive Guide for Serious Divers Since 1975
Join Undercurrent on Facebook
"Best of the Web: scuba tips no other
source dares to publish" -- Forbes
August 2001 Vol. 16, No. 8   RSS Feed for Undercurrent Issues
What's this?

The Truth About San Salvador’s Algae

from the August, 2001 issue of Undercurrent   Subscribe Now

In our review of San Salvador Island, we noted that the reefs were covered with algae, which made them drab and uninteresting. We offered some scientific speculation about the cause, but long time dive manager Chris McLaughlin wrote to set me straight:

Thank you for your June 2001 story. I believe that you were accurate and fair, though we are actually 400 miles southeast of Miami. Algae-covered reefs are a long time phenomenon on San Salvador. When I first came here in 1975 there was a lot of algae already. It is more widespread here than most Bahamian Islands. The Bahamian field station thinks it is possibly caused by deep water upwelling of Amazon River effluent, brought up by oceanic currents. From December to mid-April, winter storms clean all the fluffy algae from the reef. After the last big storm front of the season this nasty stuff starts growing fast and covers the reefs until October/November, when the first cold front storms blow it off again. Unfortunately, there is less coral left each time. Hurricane Floyd acted like a cold front and cleaned off the algae for a couple of weeks in the summer. So, your theory doesn’t explain the steady increase of algae for 26 observed years, with hurricanes only in 1996 and 1999.

I want to get all the stories! Tell me how I can become an Undercurrent Online Member and get online access to all the articles of Undercurrent as well as thousands of first hand reports on dive operations world-wide



NEW! Find in  

| Home | Online Members Area | My Account |
| Travel Index | Dive Gear Index | Health/Safety Index | Environment & Misc. Index | Seasonal Planner | Forums | Blogs | Free Articles | Book Picks | News |
| Dive Resort & Liveaboard Reviews | Featured Reports | Recent Issues | Back Issues | Login | Join | Special Offers | RSS | FAQ | About Us | Contact Us | Links |


Copyright © 1996-2016 Undercurrent (www.undercurrent.org)
3020 Bridgeway, Ste 102, Sausalito, Ca 94965
All rights reserved.

cd