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Studies on Seagrasses in relation to some Environmental variables from Chilika Lagoon, Odisha, India

Author Affiliations

  • 1 P.G. Department of Marine Sciences, Berhampur University, Bhanja Bihar, Berhampur- 760007, Odisha, INDIA
  • 2
  • 3
  • 4

Int. Res. J. Environment Sci., Volume 3, Issue (12), Pages 92-101, December,22 (2014)

Abstract

Chilika lagoon has been studied from different angle in different aspect by several authors. The seagrasses have not been studied from Chilika lagoon so far. Five species of seagrasses i.e. Holodule uninervis, Holodule pinifolia, Halophila ovalis, Halophila ovata and Halophila beccarii have been observed from four stations namely Rambha, Palur Canal, Samala and Nalabana Island during February 2013 to November 2013. The highest water temperature was observed to be 31.0 C and lowest temperature was observed to be 22.0 C in station -2 and station -4 in the month of April and November 2013respectively. The highest and lowest pH was observed to be 8.9 and 7.0 during June and November 2013 from station -4 and station -1respectively. Likewise, the highest dissolved oxygen was observed to be 8.6 mg/l in station -4 for the month of Septenber and the lowest dissolved oxygen was observed 3.4 mg/l in station -3 for the month of July 2013. The variation of salinity was observed to be 5.1 ppt to 20.6 ppt in station -2 and station -3 for the month of August and April. The highest total organic carbon was observed to be 1.6 mg/l in station -2 for the month March and the lowest total organic carbon was observed to be 1.01 mg/l in station -4 for the month of September 2013. The highest total suspended solid was observed to be 25 mg/l in station -4 for the month of August 2013 and lowest total suspended solid was observed 12 mg/l for the month of April, May, September and November 2013 in station -2, 3, 1 and 3 respectively. The highest total dissolved solid was observed 510 mg/l in station -2 for the month of February and the lowest dissolved solid was observed to 210 mg/l in station-4 for the month of July 2013. Likewise the variation of total hardness was observed to be 130 to 460 mg/l in station -2 and station -3 for the month of August and February 2013.

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