30 Ideas: salt bags

Category: 30th Anniversary, Europe Regional News, News

Last updated: April 14th, 2021

In 2021 we are marking 30 years of WLI cooperation by sourcing 30 neat ideas from WLI members. Today we hear from Spain:

Title: Salt bags
Description: In the Salinas de San Pedro, the water coming from the salty lagoon of the Mar Menor passes through different types of ponds, in which the size and depth are reduced, progressively increasing the salinity, until the salt precipitates in the ponds and crystallises.

So that visitors can better visualise the functioning of the salt flats, a resource is used that consists of four transparent bags, which contain the proportion of salt that would be in a litre of water from the Mar Menor and from each type of pond.

Visitors see the bags of salt by a pond

This is of great help in understanding the large amount of salt in the water of the salt flats and, therefore, how the fauna that lives in them has to develop adaptations to survive in these extreme environments.

Learning and conservation outcomes: different pond types; salinity levels
Audience: School groups, families, all visitors
Cost: low
Key themes: hydrodynamics, salinity, salt, habitat types, species adaptations
Equipment/resources required: plastic bags, salt.

4 x 1 litre bags, each with varying amounts of salt crystals insie

Source: Information Service of the Regional Park Salinas y Arenales de San Pedro del Pinatar (Region of Murcia-Spain)

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