Few studies have addressed patterns of spatial or temporal distribution of rocky-shore organisms at the community level [139] [144].
At least 110 species of near-shore marine organisms have been identified in the Pinna layer, Dr. Landman explained.
This suggests that across-shore patches of organisms might be distributed in response to some process acting at spatial scales close to 3 m.
Remarkably, these results contrast sharply to what has been found for rocky shore and shallow intertidal organisms in South Africa to date, which have shown population genetic structuring irrespective of their life-history patterns and pelagic larval duration [ 13- 17].
"Sweepstakes Reproductive Success" (SRS) as observed in some near-shore bivalves and other organisms reviewed in [ 42], might be invoked to explain the heterozygote deficiencies, but the hybrid zone juveniles were not the progeny of few females.
The aim of this paper is to assess habitat-specific response of benthic sessile organisms of rocky shores in relation to the presence of a small marina.
Considerable effort was made on the taxonomy and descriptive ecology of organisms on accessible shores: some examples include [22], [23] and more recently [24].
Other relevant features in this transcriptome are related to DNA replication, recombination and repair, which are important to the survival and growth of the seaweed, especially in the rocky-shore coastal environment where the organisms are subject to high UVB levels that causes serious damages to DNA [ 72].
Rocky shores are dynamic environments inhabited by organisms that are able to withstand harsh abiotic and biotic conditions.
Exposed sandy coasts generally develop sparse populations, especially between the tide lines, while the few organisms inhabiting wave-swept rocky shores are generally firmly cemented or anchored to the substratum.
