July 16, 2018 — As most Maine residents are well aware by now, climate change does not bode well for our fisheries in the Gulf of Maine. For decades, the American lobster has been the hero of our commercial fishing industry – its fame, sustainability, market value and sweet taste have made it the success it is today. In 2017, the American lobster accounted for 76.2 percent of the total value of our state revenue from fisheries, which boasted a hefty $433.7 million. But what exactly is going to happen to the Maine lobster as our coastal waters increase in temperature, and what will this mean for our state?
Contrary to popular belief, our local crustaceans will not pack up and move north to Canada. Additionally, they will not die all at once when the sea hits a certain temperature. Like humans, lobsters have a specific range of temperatures they can survive in, and once the temperature reaches a threshold, these animals face some challenges. If humans consistently lived in environments too hot for us, our bodies would have stress reactions, and some of our bodily functions, like our immune or reproductive systems, may not work as efficiently. The same may apply to lobsters.
This question – could climate change affect the productivity by which lobsters reproduce? – is being answered in part at the Wells National Estuary Research Reserve, one of 29 nationally funded National Oceanic and Atmospheric Administration-supported reserves dedicated to coastal research, education and stewardship.
Researchers at the Wells Reserve laboratory are working to determine to what extent shell disease (a topical bacterial infection that erodes shell, also known as shell rot) influences how many eggs female lobsters can successfully carry and maintain. Last summer, I had the privilege of working as a research intern, through the NOAA Five Colleges Program, to work specifically on this ground-breaking project with Jason Goldstein, the research director at the reserve.