Fishmobile

Last week, I volunteered when the Phillips Wharf Environmental Center’s Fishmobile visited an elementary school in Carroll County, Maryland.

The Fishmobile is a bus fitted with aquarium tanks for live exhibits of animals from the Chesapeake Bay and bookcases/walls of related materials. It’s a field trip that comes to the school! Groups of 10-12 students take about 15 minutes in the bus to see everything…spending another 15 minutes outside getting more details about horseshoe crabs. There were 4 classes of 4th graders that came through in 2 hours!

I managed to take pictures of some of the animals in the Fishmobile before the students arrived. There were small horseshoe crabs – the smallest being a little larger than a quarter. They were active all over the bottom of their tank.

The oyster toadfish was not happy after the first few groups and retreated to the back of the tank. I was glad I got a picture of him.

The lined seahorse was one that was harder to photograph. It was a good discussion starter since the seahorse depends on the grasses in the bay and is becoming more numerous now that they are recovering. I was impressed that the 4th graders were aware of the grasses even if they didn’t know about the seahorses.

The only animal in the Fishmobile that the students could touch was the diamondback terrapin. They were told to use 2 fingers gently on his back…because he can bite! He evidently is very accustomed to handling…and he has a name: Larry. There was a baby diamondback terrapin (hatched last fall) in a neighboring tank that didn’t move around very much.

There was also a small box turtle and a mystery box with a box turtle shell. We prompted the students that tried the mystery box to feel whether the shell was flat or domed…and then to look at all the turtles on display to identify what kind of shell was in the mystery box.

The fish that had a name linked to history was the hogchoker. It is a flounder like fish that lives in the grassy areas of the bay. When the colonists collected the grasses to fee to their pigs, sometimes this fish was harvested with the grasses….and choked the pig that tired to eat it. That’s how it got its name.

The bookcases had jaws from a modern shark…and a fossil tooth, a dolphin skull, and the molt of a horseshoe crab. There was a wall of various kinds of trash with estimates of how long it took to degrade. Plastic water bottles and fishing line take 100s of years!