From 2017 to 2021, the Guangdong Pearl River Estuary Chinese White Dolphin National Nature Reserve conducted a monitoring survey of the Pearl River Estuary Reserve and its surrounding waters. The survey results show that there are about 1,100 Chinese white dolphins in the Pearl R

2024/04/2201:07:34 housepet 1267

[Source: Guangdong Ecological Environment]

From 2017 to 2021, the Guangdong Pearl River Estuary Chinese White Dolphin National Nature Reserve conducted a monitoring survey of the Pearl River Estuary Reserve and its surrounding waters. The survey results show that there are about 1,100 Chinese white dolphins in the Pearl R - DayDayNews

From 2017 to 2021, the Guangdong Pearl River Estuary Chinese White Dolphin National Nature Reserve will conduct monitoring surveys of the Pearl River Estuary Reserve and its surrounding waters. The survey results show that there are about 1,100 Chinese white dolphins in the Pearl River Estuary , and the population has been stable and improving over the past five years.

From 2017 to 2021, the Guangdong Pearl River Estuary Chinese White Dolphin National Nature Reserve conducted a monitoring survey of the Pearl River Estuary Reserve and its surrounding waters. The survey results show that there are about 1,100 Chinese white dolphins in the Pearl R - DayDayNews

The survey was conducted in three stages (2017-2018, 2018-2019, 2019-2021), using the ship-based intercept line survey method, and there were 20 voyages. In the survey area, the population of Chinese white dolphins is estimated to be about 1,100. During the monitoring period, Chinese white dolphins were still dominated by spotted juveniles and spotted adults, accounting for 22%-30%; old unspotted adults accounted for 16%-20%, and the sighting rate of young dolphins was still low. Comparison of

3 stages shows that the population number in the Pearl River Estuary Reserve was 937 in 2017-2018 and 800 in 2018-2019. The number of sighted young dolphins accounted for less than 10% in both monitoring sessions;

From 2019 to 2021, the population of white dolphins was more than 1,100, and the number of sighted young dolphins accounted for 13%;

The comparison results show that in the survey area , after 2019, the population of Chinese white dolphins has increased, the proportion of young dolphins has increased, and the age structure has improved.

The stable and improving population of Chinese white dolphins in the Pearl River Estuary is closely related to the strengthening of marine ecological environment protection in Guangdong Province in recent years. The quality of the marine environment has gradually improved, and the habitats of Chinese white dolphins have also been effectively protected.

Source/Guangdong Forestry

Compilation/Guangdong Ecological Environment WeChat Editing Group

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