The influences of tidal cycye to the in-situ physico-chemical parameter in estuary at Chukai-Kemaman, River Basin, Terengganu

Abstract

This study regarding the influences of tidal cycle to in-situ physico-chemical in tidal estuary was conducted at Chukai-kemaman river basin, Terengganu. Sampling was done twice at 12 stations on 30th April 2009 and 7th August 2009. During samplings has two high tides and two low tides occur each tidal day, the tide is semidiurnal. Several of parameter has significant changes affected by tidal cycle such dissolved oxygen, temperature, salinity, turbidity, current movement and current direction while pH was not affected. Even though, a few parameters has significant correlation between other parameters. For example, the temperature was high, the salinity and dissolved oxygen was low. Besides that, if salinity was high, the dissolved oxygen was low moreover, the salinity concentration influenced by tidal current. While, turbidity was high when the dissolved oxygen was low. Physico-chemical pamaters also affected by position and depth each station. The presented of tidal cycle every day would affected the parameters reading at Chukai-kemaman estuary.