11th ICRS Abstract book - Nova Southeastern University

24.1100
Proceedings in Shipgroundings Impact Events At Coral Reefs in The National Park
Sistema Arrecifal Veracruzano, Veracruz, Mexico
Gabriela NAVA MARTÍNEZ 1 , Miguel GARCIA* 2,3
1 Oceanus, A.C., Chetumal, Quintana Roo, Mexico, 2 Oceanus, A.C., Chetumal, Quintana
roo, Mexico, 3 MBRS Project, Belize City, Belize
Few areas have designed programs and have trained field personnel on the techniques to
evaluate and properly managed the high variety of anthropogenic impacts on the reef.
Due to this need, in México, some efforts have started at the national protected areas and
NGO´s to generate and to establish the adequate methods for management of
shipgroundings and restoration techniques with positive results.
Oceanus, A.C. and the National Park Sistema Arrecifal Veracruzano carried on a first
workshop in Veracruz to determine the proceedings on coral reef impacts by
shipgroundings in the National Park. The training brought together the different public
institutions tradionally involved on these accidents and the technical staff and specialists
that evaluate the sites. The workshop included some training in evaluation following
national and international procedures as those given by Gulko in 2006, as well as some
recommendations to evaluate the need of a restoration program and methods to help on
restoring and maintenance of the biological community.
The participation included fishermen, navy officials, law officials, biologists, national
park staff, coastal police and administrators involved. The results included a proposal of
the guide of procedures in Shipgrounding Impact Events, describing the activities and
responsible of each step, as well as the contact information, a technical committee was
establish to support the decisions in each case and proposal for research and capabilities
needs for the committee and the personal involved.
24.1101
The Impact Of Biorock To Growth Rate And Survival Rate Of Coal Transplant In
Tanjung Lesung, West Java, Indonesia
Neviaty ZAMANI* 1 , Ramadian BACHTIAR 1 , Hawis MADDUPA 1
1 Marine Science and Technologi, Bogor Agriculture University, Bogor, Indonesia
Biorock is one of coral reef rehabilitation technique, wich have been develop world wide.
This methods is relatively easy and cheap to applaid for coral reef rehabilitation. There is
an argumentation among the scientist that, the biorock can make the growth rate of coral
transplan faster than without biorock. It is also an argument that the biorock can reduce
the mortality of coral transplant. Some studies show the phenomena that the growth and
mortality of coral transplant in biorock is better than in location without biorock.
However there is also other study, which have the result in vise versa. The question is
the better result of growth and survival rate because of biorock, or rather than the impact
of location surrounding the biorock. This study is trying to investigat the impact of
biorock to the growth and survival rate of coral transplant in one year monitoring. The
sample have been taken every month for the period of 12 months monitoring activities.
The activities was started in February 2007 and ending in January 2008. Initial result
shows that the growth rate in biorock is faster than in non biorock for the first 3 month.
The survival rate is not significant different between biorock and non biorock coral
transplant.
Key word: Biorock, coral transplant
Poster Mini-Symposium 24: Reef Restoration
24.1102
Biological Consequences of Quick Fixes in Reef Restoration
Andrew TAYLOR* 1
1 School of Marine and Tropical Biology, James Cook University, Townsville, Australia
Restoration projects can run the risk of simply transforming one degraded habitat into another
anthropogenically altered habitat. While aesthetically different and possibly of higher socioeconomic
value, the new state of alteration may or may not have any added ecosystem function.
Electro-mineral accretion has been used in many restoration and artificial reef projects as both a
means to secure scleractinian coral transplants to substrate and to promote growth. The applied
electric current induces accretion of calcium carbonate onto a metal structure, and is assumed to
have a positive effect on growth (linear extension) of attached corals. Previous research
regarding this process has dealt with quantity rather than quality of attached corals. This study
attempts to determine if the higher skeletal growth rates experienced by the coral are at the
expense of a trade-off with some other aspect of their life history – such as reproductive ability
or fitness.
The capacity for restoration efforts on the surrounding reef is governed by the viability of the
transplants. In this study the functional biology of transplants under electro-mineral accretion
conditions are examined to ascertain if the corals growing on such structures are biologically
viable and contribute to restoration efforts. Species specific comparisons of fecundity, tissue
thickness, polyp density, and skeletal density were done on Acroporid and Pocilloporid corals
growing under electro-mineral accretion treatments and under natural conditions in a field site
in Lombok, Indonesia.
24.1103
Effects Of An Electrical Field On Growth, Chlorophyll And Zooxanthellae Of
Transplanted Acropora Yongei And A. Pulchra Fragments
Sascha B.C. ROMATZKI* 1 , Neviaty P. ZAMANI 2 , Esther M. BORELL 1
1 Center for Tropical Marine Ecology (ZMT), Bremen, Germany, 2 Department of Marine
Science and Technology, Bogor Agricultural University, Bogor, Indonesia
The mineral accretion method is an alternative reef restoration method using the principle of
electrolyses to precipitate minerals from seawater in form of limestone as settlement and
transplantation substrate on conductive metal rags. Previous observations indicated, that the
hereby-used electric field has positive side effects on corals transplanted to these structures.
Here we examined the responses on growth, chlorophyll concentration and number of
Zooxanthellae of two transplanted Acropora species on charged iron frames on different height
levels from the ground. Results were compared with those of a similar, uncharged control frame
and the donor colonies. The field experiment was carried out on Pulau Gangga, North Sulawesi,
Indonesia at a depth of 5 to 7 meters from April to December 2006.
Mean average length increase of A. yongei was significantly bigger on the control frames
(4,15mm/month) and the donor colonies (5,64 mm/month) compared to those of the charged
frames (3,21mm/month). Similar observations were made for the number of Zooxanthellae
whereas photometrical analyses of chlorophyll a and c concentration showed significantly
increased rates on electrical charged structures. A. pulchra showed growth rates without
significant differences between the charged and the control structure (mean average 4,55 and
5,34 mm/month) but rates were significantly lower than those of the donor colony (8,0
mm/month). Chlorophyll concentrations and Zooxanthellae number had no significant
differences between treatments and donor in A. pulchra, although chlorophyll concentrations
were slightly higher and numbers of Zooxanthellae were lower on structures compared to the
donor colony.
The results indicate that an electrical field slows down A. yongei growth rates, but it seems to
increase the chlorophyll concentration. A. pulchra fragments showed no significant response to
the electrical field, but the species is sensitive to fragmentation and transplantation stress.
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