The most common of six management strategies used by
respondents included stocking with 10 to 25 day old PL and utilizing
a nursery phase with high stocking densities in order to use land,
water, and labor more efficiently (Table 2). The nursery phase ranged
from 30 to 90 days, most commonly 60 to 75 days (60%). Alternatively,
some farmers chose to directly stock PL or juveniles or young adults,
ranging from 3 to 29 g, into grow-out ponds. Two different harvest
methods were used, batch and combined. In the more common
combined method, farmers culled only marketable sized prawns
beginning five months after PL were stocked and two months after
juveniles or young adults were stocked. Prawns stunted by dominants
were then allowed to grow and were harvested at 30 to 45 day
intervals. After several months, ponds were drained, harvested
entirely, and prepared for the next crop. The less common batch
method allowed prawns to grow to a medium market size and then
ponds were drained, harvested, and prepared for another crop.
The most common of six management strategies used by
respondents included stocking with 10 to 25 day old PL and utilizing
a nursery phase with high stocking densities in order to use land,
water, and labor more efficiently (Table 2). The nursery phase ranged
from 30 to 90 days, most commonly 60 to 75 days (60%). Alternatively,
some farmers chose to directly stock PL or juveniles or young adults,
ranging from 3 to 29 g, into grow-out ponds. Two different harvest
methods were used, batch and combined. In the more common
combined method, farmers culled only marketable sized prawns
beginning five months after PL were stocked and two months after
juveniles or young adults were stocked. Prawns stunted by dominants
were then allowed to grow and were harvested at 30 to 45 day
intervals. After several months, ponds were drained, harvested
entirely, and prepared for the next crop. The less common batch
method allowed prawns to grow to a medium market size and then
ponds were drained, harvested, and prepared for another crop.
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