A recent research study conducted at Dalhousie University revealed the presence of microplastics in lobster meat harvested off the coast of Nova Scotia. The investigation, led by researchers from Dalhousie’s School for Resource and Environmental Studies, involved the collection of 16 lobsters from various regions of the province in 2022.
By examining the edible parts of the lobster tails using a specialized dye that illuminates microplastics under a microscope, the researchers discovered that all 16 lobsters contained varying quantities of microplastic particles, averaging between six to seven particles per gram of meat. The study, authored by Amber LeBlanc and published in the journal Regional Studies in Marine Science, highlighted the surprising small size of the microplastics, measuring around 3.65 micrometres, significantly smaller than a human hair.
The analysis of the microplastic particles identified the prevalent types of plastic, including polyethylene vinyl acetate, polyester, and polysulfone, commonly used in packaging, clothing fibers, and industrial applications. While microplastics were found in all lobster samples, those from southwest Nova Scotia exhibited the highest concentrations.
Despite the findings, the researchers emphasized the need for further studies to investigate the geographic variations and potential impacts on both lobsters and human consumers. Tony Walker, a co-author of the study and a professor at Dalhousie, described the levels of microplastics in lobster meat as relatively low compared to other food sources.
Regarding the health implications, Karl Jobst, an associate professor at Memorial University, stressed the uncertainty surrounding the effects of microplastics on human health. Jobst’s research indicated the presence of microplastics in blood and placental tissue, raising concerns about potential adverse effects, especially during pregnancy.
Members of the seafood industry in Nova Scotia expressed reservations about the study’s small sample size and highlighted the widespread presence of microplastics in various food sources. They underscored the importance of viewing the issue in a broader food chain context and reassured consumers about the nutritional benefits of consuming seafood like lobster.
In conclusion, while the study sheds light on the prevalence of microplastics in lobster meat, further research is essential to fully understand the implications for both marine life and human health.
