Abstract:

The relationship of nutrients and phytoplankton chlorophyll-a(Chl-a) is a basis for understanding eutrophication in a coastal marine ecosystem. This study was conducted to determined Chl-a and nutrient distribution during the post monsoon in the coastal water of Saint Martin’s Island, Bangladesh. Distribution of Chl-ais described by the spatial map using collected samples of seawater. Nutrient distribution is explained using kriging technique and mapped using ArcGIS. Chl-ais higher near coastal area and lower towards offshore area due to the terrestrial influence especially from anthropogenic activities andNaf river discharge. High value of nitrate, ammonia and phosphate in near coastal area during the pre-monsoon indicates influence of terrestrial discharge especially from river outflow and human intervention. Distribution of Chl-a along the Saint Martin’s coastal area is influenced by nutrient

গবেষণা ফলাফলঃ সেন্ট মার্টিন সংলগ্ন ১৫০ বর্গ কি.মি সমুদ্র এলাকার ক্লোরোফিল-এ এবং নিউট্রিয়েন্ট এর অবস্থা ও পরিমান নির্ণয় করা হয়েছে।