“…The study region has a macro tidal environment and experiences episodic storm events. The climate, hydrography, and biogeochemistry, as well as organic pollution in surface sediments of the central gulf and the northern coastal and estuarine waters have been described in recent studies (Bauer et al, 2013;Kaiser et al, 2015aKaiser et al, , 2014Li et al, 2015;Wu et al, 2008).…”