THE POTENTIAL OF INTEGRATING BIODIVERSITY BY AN ARTIFICIAL REEF ORAN’S COAST; ALGERIA

Abstract

Given moderate means, the first implantation of artificial reefs in Oran, Algeria was carried out on an experimental basis. It forms part of a broader objective to diversify and increase fishing along the Algerian coast. Indeed, stocks of the latter being in sharp decline for several years mainly due to human action, the marine ecological association BARBAROUS, DPRH of Oran, MPRH and the State seeking to direct fishing to a more sustainable fishing with a more appropriate resource management. In this regard, it said production reef is implanted in order to increase the diversity and fish biomass. This is a useful tool which can be used as part of a sustainable development of the inshore paid.

RO1 consists of 68 concrete modules, two structures of 34 modules, each structure has a superimposed form to create a chaotic structure full of rejection, independent (one east and one west) of a total surface of 15m2. Immerse to 30m depth contour on sandy substrate furniture that looks like a desert. Mark by a float for easy identification during the scientific monitoring. The configuration of structures and their implantation were carried out by the project manager of the association. The immersion campaign took place in 4 months from April to July 2015.

The scientific monitoring of permits to reef: Follow the evolution of structures themselves (eg siltation), the flora and fauna and settlement structures estimate the biomass of certain fish populations at the reef. After six months of immersion, the results of monitoring in and around of both structures, report the presence of more than 37 species, distributed among algae, mollusks gastropods, sponges and fish. It is reported that the number of species inventoried near the reef have been increasing steadily since the beginning of monitoring and especially the biomass of fish such as red porgy, the Sars, the Sparaillons the Amberjacks the Rascasses the Girelles and Serrans.

Keywords: Artificial reef, Scientific Monitoring, Specific Richness, Biomass and Oran Coastline

Artificial reef, Scientific Monitoring, Specific Richness, Biomass and Oran Coastline.