Subangdaku River

The resulting fragmentation and siltation of Sogod Bay may have disturbed the life cycle of some organisms that require movement between the sea and the freshwater ecosystem such as Subangdaku.

For instance, the behavior of a certain crab named locally as "Kamwa", has been reported by one of the local inhabitant who followed the crab upstream and found that the path the young traveled from the sea to upstream of Subangdaku reached until Barangay San Juan about 120 metres (390 ft) above sea level.

Several companies have exploited and extracted sand and gravel in the area that are being accumulated by the river's current every time it floods.

After a typhoon strikes the area, because it has many channels, the current of the river easily gets so strong that it becomes hazardous to nearby villages.

The same report mentioned mining as one of the harmful practices that Sogod Bay should be protected from, and it recommended regulating quarrying and rechanneling with competent planning based on scientific evidence and monitoring as a way to protect the Subangdaku River.