Residence time is an important parameter linked to the water quality in estuary. In this paper, we identify and analyze main processes that affect residence of Caloosahatchee River Estuary, a micro-tidal mixed diurnal-semidiurnal estuary located western Florida. Multiyear validated hydrodynamic hindcast results were coupled with offline particle tracking model compute estuary, which showed stro...

A metal-enriched seawater plume entering the western Mediterranean Sea through the Strait of Gibraltar originates 300 km to the west in the Rio Tinto estuary of southwestern Spain. Mining of Rio Tinto ore, one of the largest metal-rich sulfide deposits in the world, started well before Roman times. Contemporary Rio Tinto waters draining the region are highly acidic (pH 2.5) with dissolved cadmi...

The role of complex life cycles in patterns of estuarine habitat use can be evaluated by studying stage-specific changes in abundances between principal habitats. Here, we evaluated how two primary habitats, tidal freshwater (salinity !3) and brackish water (salinity 3e15), structured juvenile white perch (Morone americana) abundance for eight sub-estuaries of the Chesapeake Bay. In addition, a...

Saint John, New Brunswick, situated on the Bay of Fundy at the mouth of the river from which it takes its name, was visited early in the 16th and 17th century by explorers and fishermen. We know with certainty t hat Champlain entered the estuary of the river on the feast of St. John the Baptist in 1604 and so named it. An enterprising outpost of New England in prerevolutionary days, it became a...

A new dwarf alestid from the vicinity of Inga on the lower Congo River, Bas Congo Province, Democratic Republic of Congo is described. Assignment of the new taxon to the poorly defined genus, Micralestes, is discussed and justified on the basis of available morphological character data. With the recognition of Micralestes schelly sp. nov., a total of six Micralestes are now known to inhabit the...

During the past two decades, the rapid development of the Pearl River delta leads to substantial accumulation of various toxic organic compounds. This study aims to give a preliminary characterization of the existing state of contamination in this region and to provide insight into the possible fate of persistent organic pollutants (POPs) in this estuary. The available data on POPs in water, ri...

-The San Francisco Estuary is the largest estuary on the west coast of North America and one of the most altered . It supports a diverse fish fauna in which key species are in severe decline . The estuary is faced with catastrophic structural and ecological changes, especially in the Sacramento-San Joaquin Delta and Suisun Marsh, as the result of levee failure caused by the combination of earth...

[1] A seasonal analysis assesing variations in the oxygen isotopic composition of dissolved inorganic phosphate (DIP) was conducted in the San Francisco Bay estuarine system, California. Isotopic fractionation of oxygen in DIP (exchange of oxygen between phosphate and environmental water) at surface water temperatures occurs only as a result of enzyme-mediated, biological reactions. Accordingly...

A nickel-cadmium battery factory released about 53 tons of mostly cadmium and nickel hydroxide suspended solid waste between 1953 and 1979 into Foundry Cove, which is tidally connected to the Hudson River estuary. A major Superfund dredging cleanup in 1994-1995 removed most of the cadmium from the sediment from within Foundry Cove. Here, we demonstrate that the cleanup reduced cadmium tissue co...

A high-resolution coastal ocean model was developed to simulate the temporal/spatial variability of the Kennebec–Androscoggin (K–A) river plume and the circulation in Casco Bay. The model results agree favorably with the moored and shipboard observations of velocity, temperature, and salinity. The surface salinity gradient was used to distinguish the plume from the ambient coastal water. The ca...