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Our new paper on limpets grazing microscopic algae

Lottia limpets sitting on an experimental plate in the intertidal zone.

Lottia limpets sitting on an experimental plate in the intertidal zone.

We recently had a new paper come out in Marine Ecology Progress Series, titled Quantifying the top-down effects of grazers on a rocky shore: selective grazing and the potential for competition (open access link at MEPS)  (permanent doi link).

This project involved putting a series of round aluminum plates out in the high intertidal zone at Hopkins Marine Station in Pacific Grove, CA, and allowing natural microalgae … Continue Reading

Using Arduino tide predictions

In the previous post, I outlined some Arduino code to generate tide height predictions for a NOAA tidal reference station.

Now let’s do something useful with this newfound functionality. In the experiments I run, it’s useful to keep intertidal animals like snails and limpets on a natural tidal cycle. In addition, some animals like high-shore limpets really dislike being continuously submerged, and will crawl up out of the tank and die when they dry out. In this case, I built a “limpet splasher” system that sprays water in the aquarium for a few seconds at a time with pauses in … Continue Reading