Tidally induced fluctuations and transports of microfungi were investigated. Samples were collected at three depths from three stations positioned at a transect in a large salt marsh creek. Samples were taken every 1.5 h for 50 consecutive h during neap tides and 50 consecutive h during the corresponding spring tides. In each season, microfungi concentrations fluctuated out of phase with the ti...

Coastal waters are severely threatened by nitrogen (N) loading from direct groundwater discharge. The subterranean estuary, the mixing zone of fresh groundwater and sea water in a coastal aquifer, has a high potential to remove substantial N. A network of piezometers was used to characterize the denitrification capacity and groundwater flow paths in the subterranean estuary below a Rhode Island...

Rapid development and urbanization of the lower Florida Keys in the last 30 years has fragmented the habitat of the Lower Keys marsh rabbit (Sylvilagus palustris hefneri), hereafter called marsh rabbit, and threatened it with extinction. On the Naval Air Station–Key West (NAS), Boca Chica Key, marsh rabbits exist as a meta-population of discrete habitat patches in a matrix of wetlands and airfi...

SLIDE 4 The marsh plain in Californian salt marshes, which extend from Point Concepción near Santa Barbara, down to Baja California, are well suited to the study of species composition and species assemblages and their relationship to ecosystem function because: The herbaceous vegetation is easily sampled. The marsh plain coexists without interference from invasive species. Halophyte traits are...

Cordgrass die-offs in Cape Cod, Massachusetts, USA, salt marshes have challenged the view that the primary production of New England salt marshes is controlled by physical factors. These die-offs have increased dramatically over the last decade and are caused by the common herbivorous marsh crab Sesarma reticulatum, but other factors that control crab impacts remain unclear. We examined the inf...

Since the 1700 CE Cascadia Subduction Zone earthquake and associated coseismic subsidence tsunami, vegetated intertidal habitats have reestablished across Pacific Northwest estuaries, yet timescales mechanisms of recovery are uncertain. We investigated timescale salt marsh reestablishment in Netarts Bay, Oregon following using a combination excess 210Pb, 14C, stratigraphic constraints, Bayesian...

Salt marshes are significant contributors to global “blue carbon” resources, and these habitats sensitive precipitation events due periodically dry-wet alternation induced by tides. However, whether annual marsh-atmospheric CO2 flux responds more or seasonal remains unclear. Here, eight years (2012-2019) of eddy covariance data were evaluated determine typical budgets, we assessed the effect on...

0-group sea bass, Dicentrarchus labrax, colonize intertidal marsh creeks of Mont Saint Michel Bay, France, on spring tides (e.g., 43% of the tides) during flood and return to coastal waters during ebb. Most arrived with empty stomachs (33%), and feed actively during their short stay in the creeks (from 1 to 2 h) where they consumed on average a minimum of 8% of their body weight. During flood t...

Surface sediment samples (0-5 cm) from 5 tidal salt marshes along the coast in California, USA were analyzed to investigate the occurrence and anthropogenic input of trace metals. Among study areas, Stege Marsh located in the central San Francisco Bay was the most contaminated marsh. Concentrations of metals in Stege Marsh sediments were higher than San Francisco Bay ambient levels. Zinc (55.3-...