"
 

millions of hermit crab shells removed as souvenirs from the Maldives causing a species housing crisis

 
 

Hermit crabs are anomuran decapod crustaceans of the superfamily Paguroidea that have adapted to occupy empty scavenged mollusc shells to protect their fragile exoskeletons. There are over 800 species of hermit crab, most of which possess an asymmetric abdomen concealed by a snug-fitting shell.

Some time ago I began working on trying to find a solution to a problem that has been accelerating over the years with the continual bad behaviour of poorly educated tourists, by removing the shells from their natural habitat which sadly is almost impossible to control. So with this project I am hoping to offer a workable and ethical solution that would allow arriving guests to understand the pitfalls for the loss of this captivating little species from these islands.

I have trialed two directions in the studio, both in glass and bio-resin. With glass there are several studios already fabricating this design around the world but ramping up to sizeable production numbers would prove a terminal a stumbling block; each piece is time consumingly intricate to make and energy intensive.

millions of hermit crab shells removed as souvenirs from the Maldives causing a species housing crisis
first occupancy inside a replica shell fabricated in glass, dated 2021

New Bio-Resins coming onto the market however do align with the environmental signature that I am looking for as they become fully inert once cured, and allow for scalable production using non petroleum or plastic based organic materials. 

I have formulated a technical brief to bench test each bio-resin selected for the project and the suppliers involved have initially verified the efficacy, application process and durability of their products. They are selected for their uv stability, abrasion resistance (using Rockwell hardness tests) and once confirming that post curing that they are 100% leech free we can be satisfied. All of the selected bio-resins have differing percentages of plant based compound extracts the highest being 100% down to the lowest at 40%.

For the model itself, of course it should be nature that guides this design so while I replicated the species exactly in the first place, it was decided that this would be too heavy when formed in resin so an alternative had to be found.

complex hermit crab shell 3d laser scans
3d scans of complex hermit crab shells proved to heavy in design testing.

The cleanest design to be found of any shell is in fact the humble escargot or Helix Pomatia, so I scoured the local river banks and orchards during the wet season and collected naturally empty (dead) snail shells and using a 3d laser scanner in the studio I mapped their organic forms into a set of 3d mesh models.

millions of hermit crab shells removed as souvenirs from the Maldives causing a species housing crisis
millions of hermit crab shells removed as souvenirs from the Maldives causing a species housing crisis
Helix Pomatia 3d model split across one axis in preparation for 3d printing in the studio.


Right now the selected shell models are being modified to include some form of branded message to ward of potential tourists from removing them from the beach yet again. This design will then be taken to the 3d printing stage experimenting with scale to perfect them.


initial mock up of shell design with the text 'leave my home alone'

The aim within the studio is to create a set of multi-sized silicone rubber moulds so that we can make the final shells on the island in situ at ‘Makers Place’, Baa Atoll, Maldives. This would cut out the need for a supply chain and offer a verified ethical production process. This is an important cornerstone of all studio projects and a rare thing in todays world, I ask you to explore more my thoughts on design and ‘going circular’ or ‘circularity’ here on an earlier journal entry. 

Fabricating on location with a Bio-Resin makes sense as these products do emit a small amount of VOC vapour in the first curing stage lasting 30-90 minutes. If production is handled at ‘Makers Place’ we could capture all these vapours within the sealed plastics studio working with our VOC fume extraction/filtration, system making the whole process completely harmless to the environment. With the added bonus from initial tests that I have made, the crabs themselves do seem to love occupying them.

>>>   Thank you for reading, please lets stay connected.

>>>   discover more about projects & exhibitions here on the journal.