Spatial analysis of water quality and its suitability in farming giant freshwater prawn (Macrobrachium rosenbergii) in Negeri Sembilan region, Peninsular Malaysia

Abstract

Finding potential sites for resilient prawn production in the tropical environment that also prevents wastage of natural resources is not an easy task. The purpose of this study is to evaluate water quality suitability for prawn farming in Negeri Sembilan of Peninsular Malaysia based on Geographic Information System (GIS). To achieve this goal, numerous criteria including sources of water, water temperature, water pH, sources of pollution, salinity, soil texture and availability of phytoplankton criteria were considered for the modelling process. Analytic Hierarchy Process (AHP) technique was performed to standardize the criteria and the weighting process. The weighted overlay of indicators and results were accomplished by applying the Multi-Criteria Decision Analysis (MCDA) method in GIS. It was indicated that the Negeri Sembilan area has potential for prawn farming. The results showed that about 25 per cent (163 056.93 ha) of the area was most suitable for prawn farming, about 58 per cent (384 656.88 ha) was considered moderately suitable, while 18 per cent (117 633.49 ha) was regarded as least suitable. The study concluded that the multi-criteria decision analysis of water quality for prawn farming is vital for regional economic planning in the Negeri Sembilan area and also significant when establishing a model for aquaculture development.

Freshwater shrimp farm monitoring system for Bangladesh based on internet of things

“…It is essential to mention that the commercial weight of shrimp ranges from 10 to 20 g. This weight is reached between 95 and 120 days after sowing. 7,8…”

“…All the necessary metrics required for shrimp farming are nicely presented throughout the literature. [7][8][9] Based on their (experts') opinion, the metrics include (i) temperature of water, (ii) water pH level, (iii) water salinity, (iv) dissolved oxygen level, (v) clearness of water, and so on the water quality requirements for freshwater shrimp framing are given in the Tables 1 and 2.…”

“…Table 10 elaborates the results achieved, where it can be found that the shrimps cultivated in gher‐01 reached a larger size (9‐12 cm) and weight (20 g) than those cultivated in the gher‐02 (8‐10 cm and 17 g, respectively). It is essential to mention that the commercial weight of shrimp ranges from 10 to 20 g. This weight is reached between 95 and 120 days after sowing 7,8 …”

The application of an expert knowledge‐driven approach for assessing gully erosion susceptibility in the subtropical Nigerian savannah

“…Bwadi et al . (2018), thus, defined experts as individuals or groups of individuals with the essential skills and potential required in the decision‐making process. Consequently, experts consulted in this study were drawn from academia (geomorphologist, hydrologist, geologist, and civil engineer).…”

Applications of Spatial Autocorrelation Analyses for Marine Aquaculture Siting

“…Following the collection of reliable data, the next step in the MSP framework is to evaluate an area for potential environmental impacts, conflicts with other ocean industries, and compliance with applicable laws (Douvere, 2008;Collie et al, 2013;Stelzenmüller et al, 2017). A Multi-Criteria Decision Analysis (MCDA), also referred to as Multi-Criteria Decision Making or Multi-Criteria Evaluation, is a commonly used spatial analysis technique for the MSP of aquaculture (Longdill et al, 2008;Radiarta et al, 2008;Gimpel et al, 2015;Bwadi et al, 2019). MCDA allows for numerous environmental and stakeholder interests to be evaluated within an area of ocean space and has demonstrated value for the siting of marine aquaculture (Aguilar-Manjarrez et al, 2017;Lester et al, 2018).…”