Alterations of species phenology in response to climate change are now unquestionable. Until now, most studies have reported precocious occurrence of life cycle events as a major phenological response. Desynchronizations of biotic interactions, in particular predator-prey relationships, are however assumed to strongly impact ecosystems' functioning, as formalized by the Match-Mismatch Hypothesi...

The contribution of terrigenous organic matter (TOM) to high molecular weight dissolved and particulate organic matter (POM) was examined along the salinity gradient of the Delaware Estuary. Dissolved organic matter (DOM) was fractionated by ultra®ltration into 1±30 kDa (HDOM) and 30 kDa±0.2 mm (VHDOM) nominal molecular weight fractions. Thermochemolysis with tetramethylammonium hydroxide (TMAH...

Bed sediment, velocity and turbidity data are presented from a large (145 km long), generally well-mixed, micro-tidal estuary in south-eastern Australia. The percentage of mud in the bed sediments reaches a maximum in a relatively narrow zone centred 30±40 km from the estuary mouth. Regular tidal resuspension of these bed sediments produces a turbidity maximum (TM) zone in the same location. Th...

The estuary of the River Elbe between Hamburg and the North Sea (Germany) is a sink for contaminated sediment and suspended particulate matter (SPM). One major concern is the effect of human activities on the hydrodynamics, particularly the intensive dredging activities in this area that may result in remobilization of sediment-bound pollutants. The aim of this study was to identify pollutants ...

Rates of denitrification and nitrous oxide (N2O) formation, and the sources of N2 and N2O, were examined by the isotope-pairing technique in three U.K. estuaries (Colne, Humber, Conwy), which ranged from extremely nutrified to oligotrophic. Nitrous oxide concentrations were supersaturated throughout the year with annual averages of 603% in the Colne, 158% in the Humber, and 133% in the Conwy, i...

Sphingobium yanoikuyae TJ is a halotolerant di-n-butyl-phthalate-degrading bacterium, isolated from the Haihe estuary in Bohai Bay, Tianjin, China. Here, we report the 5.1-Mb draft genome sequence of this strain, which will provide insights into the diversity of Sphingobium spp. and the mechanism of phthalate ester degradation in the estuary.

Prepared by Alan B. Jones, Brooks Rand, Ltd., Seattle, WA Darell G. Slotton, University of California, Davis Review contributions by Chris Foe, Central Valley Regional Water Quality Control Board Joe Domagalski, United States Geological Survey A Special Study of the San Francisco Estuary Regional Monitoring Program San Francisco Estuary Institute 1325 S. 46th Street Richmond, CA 94804 September...

The goal of this paper is to assess the principles and policy consideration for biodiversity conservation in the Cross River estuary using secondary data. This is informed by the need to document the status of the resources of the estuary as a basis for regulating the future exploitation and for the protection of the mangrove ecosystem in order to enhance sustainability.

Denitrification and dissimilatory nitrate reduction to ammonium (DNRA) are processes occurring simultaneously under oxygen-limited or anaerobic conditions, where both compete for nitrate and organic carbon. Despite their ecological importance, there has been little investigation of how denitrification and DNRA potentials and related functional genes vary vertically with sediment depth. Nitrate ...

Pereira Filho, J.; Rörig, L. R.; Hesse, K.; Poremba, K.; Schettini, C. A. F.; Proença, L. A. & Santos, J. E. 2009. Primary and Bacterial Production processes in the lower Itajaí-Açú estuary, Santa Catarina, BrazilBraz. J. Aquat. Sci. Technol. 13(1): 1-10. ISSN 1808-7035. Primary and bacterial productivity (PP and BP, respectively) were measured in the lower Itajaí-Açu estuary and in the adjacen...