Pressing shortage of fish larvae or fingerlings & high cost for large scale production of high-value fish
Aquaculture farmers in the high priced fish categories are suffering from two issues. The first issue is the expensive "baby" fingerlings supplies. The second issue is the high mortality rate of the fingerlings. Mahseer (kelah), marble goby and garupa are in the high priced fish category.
The inadequate local supplies have led to the import-dependent of these fingerlings. This is the main reason many aquaculture farmers have increased their prices. Many have even steered away from these categories due to the almost impossible supply of fingerlings.
This is further compounded when these fingerlings have a high mortality rate. The reasons for poor larval survival may stem from poor larval feed (e.g. suitability, nutritional value) and suboptimal larval rearing conditions. (e.g. water quality).