Status of Coral Reefs of the World 2000
Status of Coral Reefs of the World 2000.pdf
Status of Coral Reefs of the World 2000.pdf
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<strong>Status</strong> <strong>of</strong> <strong>Coral</strong> <strong>Reefs</strong> <strong>of</strong> East and North Asia<br />
CURRENT AND POTENTIAL CLIMATE CHANGE IMPACTS<br />
The Japan Marine Science and Technology Center (JAMSTEC) carried out extensive surveys<br />
<strong>of</strong> <strong>the</strong> 1998 bleaching in Akajima Island and <strong>the</strong> main island <strong>of</strong> Okinawa, and also collected<br />
meteorological and oceanographic data which were closely correlated with <strong>the</strong> bleaching.<br />
A simulation model was developed to estimate how variations in meteorological and<br />
oceanographic conditions affect <strong>the</strong> recovery rate <strong>of</strong> bleached coral reefs. Remote sensing<br />
from aircraft was also used to assess <strong>the</strong> impact <strong>of</strong> <strong>the</strong> 1998 bleaching, after attempts using<br />
satellite images were ineffective. The meteorological parameters <strong>of</strong> air temperature, cloud<br />
cover, solar irradiation, wind, rainfall, water temperatures, Kuroshio current strength, salinity,<br />
tidal level etc. were measured seeking correlations with <strong>the</strong> bleaching data. The analysis<br />
showed that variations in water temperatures in <strong>the</strong> Equatorial areas were reflected in<br />
Okinawa some months later and large areas with high surface water temperature (29 o C or<br />
higher) occurred in <strong>the</strong> summer season <strong>of</strong> 1998. The conclusion was that global<br />
oceanographic variations were <strong>the</strong> driving forces <strong>of</strong> <strong>the</strong> bleaching <strong>of</strong> coral reefs, but <strong>the</strong>re<br />
was no clear link that meteorological conditions could initiate <strong>the</strong> bleaching, and fur<strong>the</strong>r<br />
studies were recommended. The o<strong>the</strong>r conclusion was that recovery rates will be different<br />
among species, and strongly dependent on water temperatures and turbidity.<br />
MAPS, MONITORING AND MANAGEMENT CAPACITY<br />
China<br />
Research and monitoring capacity is generally low and coral reefs have had little previous<br />
prominence in policy making. In late <strong>2000</strong>, <strong>the</strong> first Reef Check-GCRMN training will be held<br />
in Hainan, supported by UNEP. Participants from three coastal provinces with coral reefs:<br />
Hainan, Guangdong and Guangxi Autonomous Region, will work on training materials<br />
translated into Chinese by <strong>the</strong> Chinese State Oceanic Administration. Earlier in <strong>2000</strong>, Reef<br />
Check in Hong Kong assembled 16 teams including government, academia, and <strong>the</strong> private<br />
sector to survey reefs throughout Hong Kong; probably <strong>the</strong> most concentrated volunteer<br />
monitoring programme in <strong>the</strong> world.<br />
Japan<br />
The establishment <strong>of</strong> Natural Parks under <strong>the</strong> Natural Parks Law is an effective means for<br />
environmental conservation in Japan. There are 6 Natural Parks with coral reefs in <strong>the</strong><br />
Amami, Ryukyu and Ogasawara Islands, with a land area <strong>of</strong> 45,854ha, approximately 11% <strong>of</strong><br />
total area <strong>of</strong> <strong>the</strong> coral reef islands. There are also 23 Marine Park Zones in National and<br />
Quasi-National Parks in <strong>the</strong>se coral reef islands (total areas 1,615ha). The total area <strong>of</strong> <strong>the</strong>se<br />
Marine Park Zones is approximately 1.7% <strong>of</strong> <strong>the</strong> coral reef area <strong>of</strong> Japan.<br />
• Ogasawara National Park, managed by <strong>the</strong> Environment Agency <strong>of</strong> Japan (EAJ).<br />
There are 7 Marine Park Zones in Chichi and Haha Islands with open ocean<br />
characteristics <strong>of</strong> high transparency, high species richness <strong>of</strong> fishes and abundant<br />
Tridacna maxima (giant clams). These reefs are small and appear to grow slowly,<br />
with some interesting limestone structures.<br />
• Iriomote National Park, managed by EAJ, including 3 Marine Park Zones in Sekisei<br />
Lagoon, and 1 in <strong>the</strong> moat around a coral reef island. The moat area has widely<br />
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