AIMS To investigate the survival of cultivable bacteria in the tropical Bangpakong estuary (Eastern Thailand) under different salinities and light conditions. METHODS AND RESULTS Dark and light microcosm experiments using membrane diffusion chambers were carried out under three different experimental conditions, namely (i) low salinity, (ii) progressive mixing with brackish water and (iii) fa...

Naturally occurring dissolved organic matter [DOM) was investigated in a lagoonal system with the aim to study the origin and mixing of the Doh4 components. Water samples were collected in the Sacca di Goro lagoon (PO river delta, Italy) and analysed by means of different techniques, such as fluorescence, absorpt~on and dissolved organic carbon (DOC) measurements. Synchronous fluorescence spect...

[1] On the basis of a 301 day acoustic Doppler current profiler mooring in an estuarine tidal strait the strength and structure of secondary circulation in a region of flow curvature is related to variations in tidal forcing and river discharge. During low-flow conditions the structure of secondary flow is consistent with a centrifugally forced helical flow, with bottom flow toward the inside o...

Abstract. The St. Lawrence Estuary connects the Great Lakes with Atlantic Ocean. accepted view, based on summer conditions, is that estuary's surface layer receives its nutrient supply from vertical mixing processes. This caused by estuarine circulation and tides interacting topography at head of Laurentian Channel. During winter when ice forms, historical process-based studies have been limite...

Abstract. The Huangmaohai estuary (HE) is a funnel-shaped microtidal in the west of Pearl River Delta (PRD) southern China. Since China reformed and opened up 1978, extensive human activities have occurred greatly changed estuary's topography modified its hydrodynamics. In this study, we examined morphological evolution by analyzing remote sensing data with ArcGIS tools studied responses hydrod...

Episodic storm-induced flooding is becoming more frequent with a warming climate, which may alter the biogeochemical properties and conditions of estuaries. However, effects such extreme events on semi-enclosed bay ecosystems have not been fully investigated because difficulty in collecting situ samples. To address this issue, comparative study was carried out to understand changes Laizhou Bay,...

The flux Richardson number Rf, also called the mixing efficiency of stratified turbulence, is important in determining geophysical flow phenomena such as ocean circulation and air-sea transports. Measuring Rf field usually difficult, thus parameterization based on readily observed properties essential. Here, estimates a strongly turbulent, sediment-stratified estuarine are obtained from measure...

The Río de la Plata is a large fluvial–estuarine–sea system discharging into the southwestern Atlantic Ocean, which has relevant features such as high fluvial discharge, microtidal astronomical tidal scales, meteorological tide, and strong atmospheric forcing effect, due to its width. objective of this study advance understanding estuarine hydrodynamics salt transport, well discussing main char...

Mangroves play an important role in carbon sequestration, but soil organic carbon (SOC) stocks differ between marine and estuarine mangroves, suggesting differing processes and drivers of SOC accumulation. Here, we compared undegraded and degraded marine and estuarine mangroves in a regional approach across the Indonesian archipelago for their SOC stocks and evaluated possible drivers imposed b...