Seaweed vs Limpets

What? 

Limpets, common molluscan grazers in the intertidal zone, are known to have an important role on rocky shores. Limpets graze on very young algae and can prevent them from growing into an algal canopy that shades and protects other animals and seaweed from light and desiccation. The amount of this algal canopy can play an important role in determining which animals and seaweeds thrive on the shore. Some years, there are lots of limpets and less algal canopy. Other years, there are less limpets and more algal canopy.

Who? 

To take part in this survey you must be aged 18+

Where? 

The simple survey of 10 – 15 quadrats is being completed in Spring and Autumn at over 30 sites nationally.

When? 

The survey runs from February to March and from September to October each year. If you would like to get involved in Spring 2019, please contact cocoast@bangor.ac.uk for advice on where to survey!

How? 

The survey involves measurements of seaweed cover and limpet sizes, and takes a couple of hours. Once you have completed your survey please send your data sheets to: cocoast@bangor.ac.uk

Why? 

Data from your hub and other hubs around the UK will be combined in order to find out if there are patterns in the balance between algae and limpets across the UK.




Species ID quiz

Want to test how well you have honed your rocky shore species ID skills since taking part in...

READ MORE

Species Package Surveys

Why carry on collecting CoCoast data? A view from the scientists

READ MORE

Marine Invaders

Help track non-native invasions taking place around the UK’s coastline...

READ MORE

CoastXplore App

When you are next by the coast complete a quick survey to help us understand how people use the...

READ MORE

Big Barnacle Count

Barnacles are common on many shores, but we know very little about individuals among the masses...

READ MORE

Beach Babies

 Would you like to look for “beach babies” on your local rocky shore? Some species start to...

READ MORE

Bird Food

Rocky shores aren't just about the small animals. Many species of wading bird are in decline,...

READ MORE

Seaweed vs Limpets

Limpets are grazers that live on algae, and an important part of the rocky shore ecosystem. The...

READ MORE

Other citizen science projects

Why not take the skills you have gained from CoCoast to other citizen science projects? Many of the CoCoast partners run other citizen science or volunteering projects you might be interested in – click on the links below for more information!

Beachwatch (MCS)
Big Seaweed Search (MCS)
Wildlife Sightings Programme (MCS)
SeaSearch (MCS)
Sea Champions (MCS)
Shore Things (MBA)
BioBlitz (MBA)
Sea Survey (MBA)
FreshWater Watch (EarthWatch)