Seawater quality parameters in the mangrove conservation area of Bukit Batu District, Bengkalis Regency, Riau Province

Faculty of Fisheries and Marine Science, Riau University, 28293 Pekanbaru, Riau Province, Indonesia

^* Corresponding author: dessy.yoswaty@lecturer.unri.ac.id

Abstract

Seawater quality parameters is very important in supporting the growth of mangrove forest in Bukit Batu District. The purpose of this study was to analyse seawater quality parameters in the mangrove conservation area of Bukit Batu District. The research method is a survey method. Seawater samples measured in situ. Sediment samples were obtained from the coastal, namely ST I (Pangkalan Jambi Village), ST II (Pakning Asal Village) and ST III (Buruk Bakul Village). The study was conducted from May-July 2024. This study was conducted by purposive sampling, analysis of seawater quality parameters, total organic matter and C percentage of organic sediment based on Loss on Ignition. Seawater quality parameters showed that pH ranges between 6,68-6,92; temperature 27-31°C; salinity 22-25 ppt; brightness 45-57 cm; and DO 5,4-6,8 mg/L. The results showed that highest average percentage of sediment organic matter was found in ST III at 16,32±6,83%, followed by ST II at 6,90±3,77% and ST I at 6,02±1,07%. The highest C percentage content of organic sediments was found in ST III at 9,47±3,96%. The quality of seawater in Bukit Batu District is still favorable for mangrove forest growth.