SEASONAL VARIATIONS OF NUTRIENT BUDGETS IN JAKARTA BAY, INDONESIA | Zendy

Mochamad Saleh Nugrahadi | Zendy; Tetsuo Yanagi | Zendy; Iwan G. Tejakusuma | Zendy; Seno Aji | Zendy; Rahmania A. Darmawan | Zendy

AI Assistant Blog Pricing

Home ZAIA Blog

Open Access

SEASONAL VARIATIONS OF NUTRIENT BUDGETS IN JAKARTA BAY, INDONESIA

Author(s) -

Mochamad Saleh Nugrahadi,

Tetsuo Yanagi,

Iwan G. Tejakusuma,

Seno Aji,

Rahmania A. Darmawan

Publication year - 2014

Publication title -

marine research in indonesia

Language(s) - English

Resource type - Journals

ISSN - 2443-2008

DOI - 10.14203/mri.v35i1.7

Subject(s) - bay , phytoplankton , estuary , environmental science , nutrient , wet season , dry season , biogeochemical cycle , organic matter , chlorophyll a , oceanography , sink (geography) , nitrogen , sediment , environmental chemistry , hydrology (agriculture) , chemistry , ecology , geology , biology , geography , paleontology , biochemistry , cartography , geotechnical engineering , organic chemistry

This study aims to quantify the fluxes of carbon, nitrogen, phosphorus, and silicate in Jakarta Bay and use these flux data to gain an initial understanding of the biogeochemical processes occurring in the system. We investigated water, suspended matter and sediments fluxes from estuarine, coastal water and outside of the bay. Water samples were analyzed for dissolved nutrients, chlorophyll-phytoplankton abundance, and their composition. Suspended matter and sediment were analyzed for carbon and nitrogen. Nutrient concentrations were high in the rivers or estuaries and then decreased rapidly seaward. Calculation budget results showed that Jakarta Bay is a sink for DIP, DIN and DSi during dry season and rainy season. In the dry season, the system is in the slightly fixation condition ([nfix-denit] = 0.03 mmol N m-2 d-1). In contrast, denitrification exceed nitrogen fixation ([nfix-denit] = -9.74 mmol N m-2 d-1) in the rainy season. Moreover, the bay produced net carbon about 2.6-32 mmol C m-2 d-1.

The content you want is available to Zendy users.

Already have an account? Click here to sign in.

Having issues? You can contact us here

Accelerating Research