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2.7 Seaweed Cultivation
Development of seaweed cultivation is one of the alternatives of marine commodities cultivation. This activity becomes a foundation for the cultivation of
marine food resources in the future. Based on marine coastal suitability utilization of coastal marine are as it is potential to increase the income. The location for
seaweed cultivation needs specific environmental conditions. Indonesia as an archipelagic state has a huge potential for the development of
seaweed cultivation, especially in coastal marine areas and the gulf. This condition is possible become the seaweed habitat is suited to the waters condition
because relatively low rainfall, and lack of fresh water from the estuary. Seaweed is one of the commodities with high demand and is used in various fields such as
medicine, agriculture, pharmaceutical, and industry, and could also be processed into semi-finished materials. Seaweed cultivation is highly profitable increase the
income of fishermen. The efforts of seaweed cultivation need to be assessed and explored as potential marine coastal suitability Syahdan, 2008.
2.8 Pearl Oyster Cultivation
Pearl oyster is one of the commodities of the marine sector which has an economic potential aside from seaweed. There is a tendency that the world
demand for pearl oysters has been increasing. Utilization of marine coastal suitable evaluation for cultivation depends on several factors such as water
quality, feed, and physiological condition of organisms. Indonesia contributes about 26 of the world market demand for pearl oysters which could still be
increased to 50 Aminudin, 2008. Consequently, the potential of coastal marine commodities is still possible to be developed, if viewed from the
availability of cultivated area, labor, and supporting equipment for pearl oyster cultivation.
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III. METHODOLOGY
Development of the main idea in designing basic pattern is preparing an information coastal marine suitability for Saleh gulf. Approach for this research is
to implement a process which carry out several methods such as minimum threshold criteria, simple additive weighting and fuzzy logic to be introduced.
Figure 3-1. Framework of research More details are visible in the image of Figure 3-1 where the steps of the research
explained. The purpose of this research is to investigate the potential marine use at coastal area in order to determine the possible coastal marine suitable use types.
The evaluation criterion of physical marine will be calculated in the coastal area such as depth, temperature, salinity, brightness, pH, and dissolved oxygen. For
this study area, the physical marine of the different marine use types are evaluated to be considered for seaweed and pearl oyster.
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3.1 Multi-Aspect of Marine Characteristics
Multi-aspect of marine characteristic analysis consists of a set of systematic procedures which is developed to select the best alternative from a set of
competing options. These procedures include dividing the decision problems into more smaller understandable parts; analyzing each part; and integrating the parts
in a logical manner to produce a meaningful solution Malczewski, 2006. Spatial multi-aspect analysis typically involves a set of geographically-defined
alternatives, which require information on criterion values and alternative geographical locations. The results of decision analysis have evolved into a
diverse range of decision techniques that can be applied in many different decision making methods.
3.2 Marine Suitability using Simple Additive Weighting and Minimum Threshold Criteria Method
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