The Weedy Sea Dragon is the only species belonging to the Phyllopteryx genus. This fish species is a close relative of the seahorse and the Leafy Sea Dragon. It is found in different states of Australia.
NOAA is working to understand and address key threats to coral reef ecosystems: the impacts from global climate change, unsustainable fishing practices and pollution. The top threats to coral reefs â global climate change, unsustainable fishing and land-based pollution â are all due to human activities. These threats, combined with others such as tropical storms, disease outbreaks, vessel damage, marine debris and invasive species, exacerbate each other.
5 Main Causes of Coral Reef Destruction. The threat to the oceanâs coral reefs is apparent. As coastal construction increases and global temperatures rise, an estimated 33 percent of corals are in danger of extinction. Marine studies have shown an 80 percent decline in some forms of coral over the last decade.