Biomass: the billion-dollar shrimp question

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• It is common for hatcheries to provide up to 30 percent more PL than needed to account for mortality during transport and to boost perceived performance. PL counting is usually done by hand, counting a selection of the PL in their bags to estimate the average number per bag

• During transfer, ensure all water bodies have active oxygenation and measure at dissolved oxygen (DO) of 5 or higher, ideally above 6

• Algaeba, like XpertSea, uses machine vision for PL counting, with much faster speed and better accuracy than the meticulous hand counting method employed by many farmers. The Thai aquaculture technology company promises a 1-minute preparation and counting time with >95 percent accuracy.

• XpertSea have recently launched a mobile version of their technology, which allows size and variation estimates through a mobile phone, reducing barriers for adoption of this useful solution.

• *Minnowtech, a US-based aquaculture technology company, is combining networked underwater sonar cameras and artificial intelligence to acquire biomass data directly in the ponds, at a level which represents both individual shrimp size and total pond biomass.