Artifical reef structure

An artificial reef segment comprising:

• a curved structure having a vertex section, an outer curved surface, and an inner curved surface;
• an opening extending through the curved structure from the outer curved surface to the inner curved surface;
• and
• an artificial reef insert disposed within the opening, the artificial reef insert comprising:
• an insert perimeter corresponding to at least one of:
• an outer curved surface opening perimeter of the opening;
• an intermediate opening perimeter of the opening defined by a portion of the opening between the outer curved surface and the inner curved surface;
• and
• an inner curved surface opening perimeter of the opening;
• a base structure comprising a first side and a second side;
• and
• a plurality of secondary openings extending through the base structure;
• and at least one of:
• a plurality of protrusions extending from the base structure, each protrusion having a substantially pyramidal shape with at least one wing configured to increase surface area;
• a three-dimensional web-like structure comprising a plurality of hierarchical openings, and
• a plurality of tertiary openings within at least one secondary opening of the plurality of secondary openings thereby creating a hierarchical structure of openings within the artificial reef insert.

A curved artificial reef structure comprising:

• a vertex section;
• an exterior outermost curved surface;
• an exterior innermost curved surface;
• a thickness between the exterior outermost curved surface, the exterior innermost curved surface, a front side of the curved artificial reef structure, and a back side of the curved artificial reef structure;
• and
• an opening extending through the thickness of the curved artificial reef structure from the exterior outermost curved surface to the exterior innermost curved surface;
• wherein the thickness varies between the exterior outermost curved surface and the exterior innermost curved surface such that the thickness continuously decreases from the vertex section towards a terminating end of the curved artificial reef structure.