April: Hidden Migrations

Animal migrations are among nature’s most stirring spectacles. So why do so few of us know about spectacular migrations that happen every spring, right in our own back yards? Because these are migrations of fish, out of sight beneath the surfaces of our rivers and streams.

DNR keeps people guessing on social media

After a four-year hiatus, the Michigan Department of Natural Resources has revived its popular Facebook series “IdentiFriday.” IdentiFriday asks participants to guess the species of a plant or animal based on a small portion of a picture each Friday. The correct answer is then posted with the full photo later in the day.

The pandemic that closed the U.S./Canadian border to people may have opened it to the invasive sea lamprey

Great Lakes invasive species cling to shipments and navigate canals to migrate, but one aquatic invader – sea lamprey – benefitted from border closures instead. During 2020, 93 Great Lakes tributaries and 11 standing bodies of water were scheduled for chemical treatments for lamprey, but only 26 tributaries and six standing bodies of water were completed.

Streamside incubator could help restore grayling to Michigan

A new project hopes to find the best design for an incubator to produce the fish that hasn’t been in Michigan waters since 1936. It is part of a multi-step effort by the Michigan Arctic Grayling Initiative, a collaboration of more than 40 partners to make the fish self-sustaining in the Great Lakes.

Invasive species now called spongy moth

The bothersome gypsy moth will now be known as the spongy moth. The Entomological Society of America made the change because the word “gypsy” is considered a derogatory slur against the Romani people. The word was dropped from its list of common names last July and the new name was just announced.