Our Sea Hives are made of recycled fishing nets and plastic bottles rotomoulded to make hexagonal tubes. There is an option to suspend smaller glass tubes inside the larger plastic tubes to increase weight and the variety of refuge sizes.
Sea Hives are designed to nest together, secured by stainless steel fasteners to create robust structures that are secured to the sea bed or suspended from pontoons. These provide multiple habitats for marine life to occupy, maximising their benefit to the marine environment.
The aim is to make SeaHives from 100% recycled material - and better than that to use the waste products that other recyclers can not recycle.
Each standard SeaHive contains the equivalent of approximately 1500 plastic bottles and 60kg of recycled glass.
How do they work?
All materials in the sea concentrate chemicals on their surfaces, and bacteria and other single celled organisms take advantage of the concentrated chemicals and use them as nutrients to multiply and grow. Sea Hives provide a solid surface on which these chemicals can accumulate over a large area, allowing bacteria and other single celled organisms to take advantage of the concentrated chemicals and use them as nutrients to multiply and grow. Many of these organisms attach themselves to the Sea Hives, providing the building blocks for new marine ecosystems.
Helped by the film of bacteria the larvae of plants and filter feeding animals floating in the plankton settle out and establish themselves on Sea Hive surfaces. These filter feeding organisms rapidly expand to create colonies of encrusting animals that themselves become food for predators like nudibranchs, starfish and cowries, which are in turn predated by other animals.
In addition to providing surfaces for to establish new ecosystems, Sea Hives also provide shelter for juvenile invertebrates ( crabs, lobsters, octopus etc ) and fish.
Two types of Sea Hives have been designed, one open at each end, and another with only one open end. Sea Hives that are open on each end allow the prevailing water currents to flow through them, bringing food to animals that reach out into the water column like soft and hard corals. Sea Hives with one closed end are ideal shelters for animals and fish that like to protect themselves. They can swim out and capture their food before returning to their homes, to avoid being eaten themselves.