Na ọtụtụ etoju 15-40 m elu nkume na-echekwawo pịrị ohere iri abụọ dị iche iche ọrụ, ise residues corridors pịrị osisi ntọala mgbe asaa ụlọ na àkwà mmiri na ise awara awa trough evidencing anchoring osisi palisades.
