Water quality assessment of Gautami — Godavari mangrove estuarine ecosystem of Andhra Pradesh, India during September 2001

Journal of Earth system science

A K Ray1¹  S C Tripathy1¹  S Patra1¹  V V Sarma1¹ 

[1]National Institute of Oceanography, Regional Centre, 176, Lawson's Bay Colony, Visakhapatnam 530 017, India.$$

关键词: Mangrove;    estuary;    water quality;    nutrient;    chlorophyll;    phytoplankton.;   

DOI  :  

学科分类：天文学(综合)

来源: Indian Academy of Sciences

【 摘 要 】

Some chemical and biological parameters were analysed at sixteen stations in the mangrove ecosystem, of the neighbouring Gautami-Godavari (GG) river estuary and Kakinada (KKD) bay to understand the present status of water quality and the impact of external terrigenous inputs during southwest (SW) monsoon in the study areas. High concentrations of nutrients in the mangrove ecosystem compared to the bay and estuarine ecosystems reveal the importance of this zone as a source of nutrients to the adjacent coastal ecosystems. Low Si :N:P (29 : 4 : 1) ratios in these ecosystems are due to the enrichment of these nutrients through external anthropogenic inputs even after the utilization by phytoplankton in the biological cycle. The mean Chl 𝑏/Chl 𝑎 and Chl 𝑐/Chl 𝑎 ratios and high phaeopigments (Pp) concentrations compared to Chl 𝑏 and high ratios of Chl 𝑎/Pp suggests the possibility of the potential growth of phytoplankton populations in lower light intensity and low turbulent areas of these mangrove ecosystems.

【 授权许可】

Unknown