I recently had the opportunity to watch a new documentary called “All too clear” that explored the current situation with invasive mussels in the Great Lakes. I was impressed by the valuable information and stunning underwater footage presented in the film.

The documentary highlighted that while the Great Lakes’ water clarity has improved, this is not necessarily a positive development. Clearer water means less algae and plankton, which reduces the food available for fish ecosystems. It also allows more damaging UV rays to reach deeper depths, potentially leading to increased fish skin cancer and thermal heating of the lakes.

The film focused on two types of invasive mussels impacting the Great Lakes – Zebra mussels and Quagga mussels. These non-native species from the Black Sea region are outcompeting native species and disrupting the entire ecosystem. Their colonies on the lake floors are consuming vital plankton and nutrients, with cascading effects up the food chain.

In addition to the environmental impacts, these invasive mussels are also creating economic challenges, clogging municipal water intakes and requiring costly maintenance. However, the documentary highlighted the efforts of biologists and Indigenous communities to better understand and manage these invasive species.

While the situation seems daunting, here a few easy suggestions on how individuals can help, such as using natural soaps and detergents, planting trees and bee-friendly flowers, and staying informed on the issue. 

Overall, “All too clear” offered a thought-provoking look at the complex challenges posed by invasive mussels in the Great Lakes.