Halston Photography
  • Home
  • Photography
    • Dive
    • Travel
    • Other
  • Connect

Blog

Mapping Howe Sound

3/29/2014

0 Comments

 
Picture
Picture
Last weekend I was asked to help out with a film crew who needed footage for two different documentaries on Howe Sound and Sponge Bioherms. 

A Bioherm is:
An
ancient organic reef of moundlike form built by a variety of marine invertebrates, including corals, echinoderms, gastropods, mollusks, and others; fossil calcareous algae are prominent in some bioherms. A structure built by similar organisms that is bedded but not moundlike is called a biostrome. Bioherms and biostromes occur in sedimentary rock strata of all geological ages, providing definitive information on paleoenvironments in the vicinity of their occurrence.  [LINK]. 

For bioherm pics from Howe Sound, see my blog post on the Halkett Bioherm.

In the case of Howe Sound, the bioherm's are silicate forms that are quite complex and there are only 4 that we can reach within recreational dive limits.  
This is why Glen built a drop cam and as you can see by the map to the left, the depth on the reef was at least 250ft.  

One of the reasons that these are so important is that they provide sheltered areas for rockfish nurseries.  The hope is that one day these ancient forms are marine protected areas.

0 Comments



Leave a Reply.

    Archives

    September 2016
    October 2015
    August 2015
    July 2015
    May 2015
    April 2015
    February 2015
    January 2015
    December 2014
    November 2014
    October 2014
    September 2014
    August 2014
    July 2014
    June 2014
    May 2014
    April 2014
    March 2014
    February 2014
    January 2014

    Categories

    All
    Admin
    Dive Sites
    Manta
    Random
    Travel
    Vancouver Diving
    Whale Shark

    RSS Feed

Powered by Create your own unique website with customizable templates.
  • Home
  • Photography
    • Dive
    • Travel
    • Other
  • Connect