Source: SEAMEO BIOTROP's Research Grant | 2021
The development of Marine Protected Areas (KKP) is one of the management strategies that is able to withstand changes in ecosystems due to the impacts of climate change and anthropogenic pressure, through the conservation of biodiversity. Complex ecosystem can offset the impact of climate change by the presence of more resilience organisms to support ecosystem function and role. One of MPA role is provide the recruit supply for surrounding waters through spill over mechanism. Protected broodsctock in MPA are expected to produce many and healthy eggs that disperse into surrounding area. The continuous supply of recruits from the MPA can maintain fish stocks and preserve the diversity. This study was carried out in TWP Pieh MPA, located in the west Sumatera region by collecting primary and secondary data. Primary data were collected through insitu sampling and laboratory analysis, secondary data was collected to figure out the condition of coral reef ecosystems inside MPA. Comparison of catches inside and outside the area, analysis of individual distribution and genetic mixing between inside and outside MPA and modeling of larval distribution with hydrodynamic models was carried out to compare the condition inside and outside MPA. The results study indicate that the TWP area. P. Pieh has been able to conserve the TWP Pieh area for fish resources and coral reef ecosystems within the protected area, however, the results of genetic analysis and larval distribution show that there is little possibility of genetic mixing between inside and outside the area, which is caused by factors of reproductive strategy and hydrodynamics. This shows that the fish population inside MPA is less support the recovery of fish stocks in the surrounding waters. To increase the role of the TWP Pieh MPA, some efforts that need to be done are to build conservation areas around TWP Pieh (satellite MPA). As well as expanding the core zone, particularly near the border area of MPA, to guarantee continues supply of larva from protected broodstock inside MPA to the surrounding waters.
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