In assessing this effect, the nature of the jetty (i.e. whether solid or built on piles) and of the contours of the sea-bed in the vicinity must be considered in advance.
Ekuvavanyeni le mpembelelo, uhlobo lwesakhiwo (oko kukuthi ukuba ingaba somelele na okanye sakhelwe phezu kwezibonda) noyilo lomgangatho wolwandle okufuphi mawuqwalaselwe kwangaphambili.