World Aquaculture 15 culture status and area, climatic hazards, and options for mitigation. Information was collected with a structured questionnaire, formal and informal interviews, and field observations. Moreover, group meetings with landless people and encroachers (squatters) were conducted in each area to assess their views and perceptions. For the public at large, the most important concerns about the effects of climate change were cyclones (cited by 75 percent of respondents), irregular rainfall (55 percent), and tidal height change (50 percent) (Fig. 5). Aquaculture farmers cited various concerns about the consequences of climate change on their farms. These included dike erosion (60 percent of respondents), infrastructure damage (50 percent), and economic losses (45 percent). An applied approach to understand the adaptation index by considering all criteria relevant to climate change allotted a ranking value of ten. Temporary weights were Table 3. Individual quality rating (qi) on the basis of measured and optimum values for the selected respondents group. Criteria Landless aqua farmer Agri cum aqua Land Fish catcher Others farmers owning aqua farmer Measured Individual Measured Individual Measured Individual Measured Individual Measured Individual value quality value quality value quality value quality value quality House building 5 89.3 4 71.4 3 53.6 3 53.6 10 178.6 materials Fuel wood 10 250.0 5 125.0 4 100.0 6 150.0 5 125.0 Grazing land 8 166.7 3 62.5 2 41.7 5 104.2 3 62.5 Foot Bridge 2 50.0 1 25.0 3 75.0 2 50.0 4 100.0 Fishing Pole 4 66.7 2 33.3 5 83.3 6 100.0 2 33.3 Fencing 4 66.7 4 66.7 2 33.3 4 66.7 1 16.7 Furniture 3 93.8 1 31.3 1 31.3 3 93.8 8 250.0 Cyclone 7 109.4 5 78.1 4 62.5 5 78.1 6 93.8 protector Table 4. Adaptation index (Wi qi) of selected respondent groups. Parameter Landless Agri cum aqua Land-owning Fish Catcher Others aquafarmer farmers House building materials 9.4 7.6 5.7 5.7 18.9 Fuel wood 37.0 18.5 14.8 22.2 18.5 Grazing land 20.6 7.7 5.1 12.8 7.7 Foot bridge 7.4 3.7 11.1 7.4 14.8 Fishing pole 6.6 3.3 8.2 9.9 3.3 Fencing 6.6 6.6 3.3 6.6 1.6 Furniture 17.3 5.8 5.8 17.3 46.3 Cyclone protector 10.1 7.2 5.8 7.2 8.7 ∑ Wi.qi 115.0 60.3 59.8 89.1 119.8 Score card 2 4 5 3 1 obtained by dividing the highest rating by each individual mean rating. Each temporary weight was then divided by the sum of all the temporary weights to arrive at the final weight of each parameter (Table 1). The sum of the product of each final weight (wi) and quality rating (qi) for each parameter was used to provide a quantitative adaptation index. Individual quality ratings presented in Table 3 reflect the congenial environment in almost all the criteria assessed among the five groups of respondents. Variation of individual quality ratings has influenced the adaptation index (Table 4) of the selected respondents group. Score cards of the adaptation index, prepared on the basis of the adaptation index, indicates the order of adaptation in the sequence of others> landless aquaculture farmer> fish catcher> agriculture-aquaculture farmer> land owning aquaculture farmer.
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