The depletion of fish stocks from over-fishing is prevalent in many Asian wetland environments and is likely to be a significant threat .
In addition , clearance of coastal mangroves over the past decade has been rapid in tropical Asia .
The depletion of fish stocks from over-fishing is prevalent in many Asia wetland environments and is likely to be a significant threat .
In addition , clearance of coastal mangroves over the past decade has been rapid in tropical Asia .