Now that the Chinese coast guard have become more capable is there any indication that it is taking over some of the brown and even green water patrol tasks of the navy ?
China's budget for the Coast Guard was on average 1,74 billion dollars for the past 5 years. China's Coast Guard is about 190000 tons in tonnage in 2016.
Here is a index of the Chinese Coast Guard Ships. It seems that the CG ships in China are slower than their Navy counterparts. Naval ships goes between 25 to 30 knots while most of the CG ships goes for about 19 to 20 knots unless they are ex navy ships. The index is from 2015.