Kualitas Perairan Pesisir Selatan Pulau Bunaken Ditinjau Dari Kondisi Bakteriologis

Abstract

<p><em>The objective of this research is to analyze the water quality of the south coastal area of Bunaken Island with the existence of bacterial polluter at the time of high tide of the surface of the sea, to identify the content of bacterial polluter, and to analyze the influence of abiotic environment (temperature, salinity, pH and dissolved oxygen) on the growth of bacterial polluter. This research has been conducted in the southern part of the coastal area of Bunaken Island at 6 stations: 1) Tanjung Pasir, 2) the water in front of Kampung Negeri, 3) Likuan, 4) Liang, 5) Tawara, and 6) in front of Alang Banua.</em></p><p><em>Samples were taken using the purposive sampling method. In analyzing the water sample to know the content of the bacterial polluter it has used the Most Probable Number (MPN) method with the presumption test by using the media of Lactose Broth (LB) and the confirmed test by using the Brilliant Green Lactose Broth (BGLB), whereas in testing the biochemical bacterial it has used the media of Mac Conkey agar. The biochemical test has used the Triple Sugar Iron (TSI) agar, Sulfide Indol Motile (SIM), Simmons’s Citrate, Urease, and Lysine Iron Agar (LIA). </em></p><p><em>The result shows that at the time of high tide the coliform of bacteria and the Escherichia coli are highest at station 6,i.e. MPN/100 ml whereas in low tide the Escherichia coli bacteria is highest at station 4,i.e 1100 MPN/100 ml and Escherichia coli is the highest at station 6,i.e. 460 MPN/100 ml. Based on the biochemical test at the south coastal area of Bunaken Island, the following have been founded out: Escherichia coli, Klebsiella rhinoscleromatis, Proteus inconstans and Enterobacter aerogenes. The result shows that the sea water at the surrounding of Bunaken Island has been contaminated by the normal intestinal tract of human beings and animals. The existence of coliform bacteria and Escherichia coli in the waters is a sign of warning that the water is potential for disease dangerous for human health.</em></p><p><em>The tested abiotic environmental parameters vary; the temperature is between 26-30<sup>o</sup>C, salinity is between 34-35%, pH is between 7.8-8.9, and the dissolved oxygen (DO) is between 2.7-7 ppm. The parameters indicate the support of the growth of bacterial polluter.</em></p>

Management strategy for marine tourism in Bunaken National Park North Sulawesi Province

“…Waste and waste management will prevent the entry of pollutants into the waters that can cause pollution and environmental damage. [7] reported the presence of coliform bacteria in southern Bunaken waters. Monitoring carried out on a regular basis will prevent further damage to the environment from occurring.…”

“…A successful tourism area depends on the physical quality of the area's environment [6]. Supporting facilities for scuba diving such as tourist lodges can also result in chemical contamination and coral damage [7]. [8].…”

Reduction of Microbial Content (Escherichia coli) in Well Water Using Various Processes: Microfiltration Membranes, Aeration and Bentonite Adsorption

“…Then the sample is allowed to stand for 1 hour and counted the amount of E. coli [9]. [15]. Each treatment is carried out on well water samples containing E. coli distinguished by varying the time of treatment, ranging from 30, 60, 90, 120, 180 and 300 minutes.…”