Culturing corals, effective legislation?

Culturing corals, effective legislation?

Postby Oceanarium » Tue Dec 02, 2008 1:30 am

In Western Australia we are in the process of putting together some form of frame work to allow cost effective aquaculture of corals. Yet still have some high level of compliance in that the corals do come from a truly cultured origin.

Curious as to how these problems may have been solved or at least mitigated in other countries or if other issues have become a problem because of legislative shortcomings?

A few points of contention we are currently debating.

• Proof of a cultured origin?
o Encrusting and substrate attachment are the two candidates that are being considered. Both rely on the coral attaching and growing over the new artificial substrate to show some proof of growth.
o One problem is many of the corals most desired in the aquarium trade do not attach or encrust Cataphyllia, Euphyllia sp, Dunconopsamia, and many others. Also many corals will readily adhere to a new substrate within days Zoanthus, Xenia, Sarcophyton, and many others.

• What is cultured?
o Some proponents wish to use on shore recirculation systems hold and grow the brood colonies with the fragments to be created from these brood colonies with no further need for corals to be collected from the wild.
o Others wish to collect and fragment in an ongoing manner with continuous on going harvesting from the wild for the fragments.
o Others wish to grow out corals that may settle on pottery plates placed in the sea.

There is considerable concern with the possibility of allowing corals to be grown offshore from wild fragments.

• How can there be effective monitoring of the volume taken from the wild to produce clones?
• What will the level of damage be to the harvested wild colonies?
• Would the mortalities in the attachment and grow out phase justify the take from the wild.
• How long would a coral need to grow for or increase before it could be marketed as a “cultured coral” with the associated “green credentials”?
Pete
User avatar
Oceanarium
 
Posts: 28
Joined: Fri May 23, 2008 1:40 am
Location: Western Australia

Re: Culturing corals, effective legislation?

Postby Oceanarium » Tue Sep 29, 2009 5:26 am

This is the final policy document … http://www.fish.wa.gov.au/docs/app/app-coral09.pdf
It is flawed and difficult to work with, but it may be of use if anyone else is looking for ideas.
Pete
User avatar
Oceanarium
 
Posts: 28
Joined: Fri May 23, 2008 1:40 am
Location: Western Australia


Return to Nature & Conservation



Who is online

Users browsing this forum: No registered users and 2 guests

cron