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Hi all,
I'm sorry I have been bad with keeping in touch following the seminar.
However, here's the latest news from North Sulawesi. As already announced at
the seminar, Sascha and I set up a 'small' experiment based on his biorock
experiments and my artificial reef/coral transplantation work. We (mostly
Sascha) welded a 5 by 2 meter iron matrix with alternating 1m^2 fields (see
pics). Into each field, 50 fragments of two different Acropora species were
transplanted; in five fields, they were attached directly to the iron (so as
to be in contact with the conducting material) and in five fields, they were
glued onto concrete bases and then tied to bamboo boards (not on conducting
material, but placed inside the electric field). Four anodes were placed at
1/2 meter distance around the structure to supply a more or less evenly
distributed current. Additionally, four bamboo boards (200 fragments) were
placed just outside ring of anodes to serve as controls in the absence of
electricity. All fragments were stained with Alizarin prior to
transplantation (a total of 700 fragments), and the length of each fragment
(they're all single branches, no side-branches) is measured monthly using
calipers.
I'm very excited about this project and look forward to reporting on the
results. Please send me a mail if you have any questions.
Best regards,
Sebastian
Sebastian Ferse, MSc.
PhD candidate
Zentrum für Marine Tropenökologie (ZMT)
Center for Tropical Marine Ecology
Fahrenheitstrasse 6
D-28359 Bremen
Germany
Phone: +62-431-837220
Fax: +49-421-238 00 30
Mobile: +62-815-11159498
> e-mail:
sebastian.ferse@zmt-bremen.de
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