Battle of the Barnacles

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A Catalyst article about biologists looking for patterns in the distribution of barnacle species on the sea shore. Barnacles are arthropods which live as tiny larvae in the sea and then cement themselves, head down, on suitable rocks, build a shell, poke their legs out of the top of it and start to filter feed. The article looks at what barnacles can tell us about the ecology of the seashore.

In the article is part of a photograph of a transect along the barnacle zone on a rocky beach in Wales, together with instructions on how to use it (p. 12). The barnacle transect file contains the full version of this image, which is about 3 metres long. Teachers and students can perform a more comprehensive transect on this, using the same method.

This article is from Catalyst: Secondary Science Review 2008, Volume 18, Issue 3.

Catalyst is a science magazine for students aged 14-19 years. Annual subscriptions to print copies of the magazine can be purchased from Mindsets.

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