Farmer’s often lower the level of water in the pond then use a dragnet to collect shrimp. Shrimp are sometimes taken out of the dragnet in smaller groups (e.g. see this video). In these cases, shrimp left in the dragnet may be experience long periods before being collected out of the ponds. Shrimp Welfare Project’s (2022, p.15) India Scoping Report states that “once shrimp are taken from the water via a dragnet, they are placed in crates and left for several minutes before being weighed.”
-Additionally, some shrimp will be taken out of the pond and then discarded in the sorting process (e.g. due to discoloration). These shrimp likely die from air exposure. Even shrimp who are not discardede may die during this evaluation period, as death from oxidative stress only takes a bit longer than 30 minutes for P. vannamei (Liu et al., 2015). We attempt to account for these instances by estimating a maximum harvest length of an hour.
+Additionally, some shrimp will be taken out of the pond and then discarded in the sorting process (e.g. due to discoloration). These shrimp likely die from air exposure. Even shrimp who are not discarded may die during this evaluation period, as death from oxidative stress only takes a bit longer than 30 minutes for P. vannamei (Liu et al., 2015). We attempt to account for these instances by estimating a maximum harvest length of an hour.