A study on seasonal of net primary productivity (NPP) along Kuala Terengganu coastal water by using satellite imagery

Abstract

The concentration of net primary productivity (NPP) along Kuala Terengganu coastal water depends on physical parameters, season and satellite images. The concentration of NPP also plays an important role in represents the total flux of organic carbon that an ecosystem can utilize for all other metabolic processes. This study aims is to get the in-situ concentration of NPP, to determine the NPP monthly using satellite imagery, to determine the correlation between in-situ and satellite imagery value and to determine the difference ofNPP during different season (South West monsoon and Inter monsoon). The sampling was conducted on 12 to 15 May, 2010 and 30 to 2 October, 2010. The result shows that the in-situ concentration of net primary productivity by using light intensity for first sampling was around 283.19 to 521.29 mgC/m 3 /day while for MODIS image value was around 261.26 to 670.12 mgC/m 3 /day. For second sampling, the in-situ concentration ofNPP was range around 34.77 to 457.83 mgC/m 3 /day while for MODIS image value was around 272.07 to 535.11 mgC/m 3 /day. Then, for NPP concentration monthly by using satellite imagery shows that year 2005 and 2008, month of December shows the highest value ofNJ>P, while for 2006, 2007, 2009 and 2010 showed that January had the highest value of NPP among the others month.