January 11, 2021 — Lobsters are big business in Maine. In 2019 alone, the state netted almost US $500-million from this popular crustacean. Profits would likely be even higher, though, if the seafood industry could reduce “shrink”—the number of lobsters that die on their way through the supply chain. Every one percent in shrink means almost $5-million in unrealized income, says Eric Thunberg, an economist at the National Oceanic and Atmospheric Administration (NOAA) Northeast Fisheries Science Center in Woods Hole, Massachusetts. “Those aren’t small losses.”
“There’s a lot of interest in reducing shrink,” says Rick Wahle, a zoologist at the University of Maine. “Unfortunately,” he says, “there’s very little hard data to work with.”
“In most cases, it’s not going to be rocket science to mitigate these problems,” says Wahle. “It may just be shorter handling times, reducing time between the dock and the holding tank, dropping more aerators in the water, or lowering storage density.” The question is where along the supply chain those changes should be applied.
A new project, led by Wahle and supported by NOAA, is now tackling that question with two purpose-designed technologies to record the health and environment conditions of lobsters as they move from trap to distributor. One sensor package, called MockLobster, measures temperature and acceleration of a crate of lobsters as it’s moved around. The team wants to add other sensors for dissolved oxygen and acidity, but these features are still being prototyped.