Bird Fish Nest Block "Sigma"

You can freely choose the slope! This birdfish nest block can be used not only as a fish nest but also as a fishway.

This is a fish nest block that has a shape resembling a cut top slab and upper side walls of a box culvert. It creates natural depressions suitable for the ecological environment of aquatic life. The block has good water and light permeability, making it suitable for the growth environment of aquatic plants, algae, and plankton. It allows for relatively easy inflow and outflow of sediment, which helps prevent functional degradation. By laying stones on the bottom slab, a natural environment is formed, making it suitable for the activities and spawning behaviors of aquatic life. Its stepped structure helps prevent water accidents caused by falls or slips, and it provides a platform for cleaning operations within rivers. Patterns can be added to the front wall, harmonizing with the landscape. The slope can be freely selected (1: 0.5 to 2.0). The stagnant water areas are conducive to the growth of reeds and other vegetation, creating an environment for bird nesting. It is easy to install and does not require specialized skills such as those needed for block work. It can be used not only as a fish nest but also as a fishway.

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