Results 151 to 160 of about 241,886 (194)

The role of hypersalinity in the persistence of the Texas ‘brown tide’ in the Laguna Madre [PDF]

open access: yesJournal of Plankton Research, 1998
A brown tide bloom of the alga Aureoumbra lagunensis was present without interruption in the Laguna Madre of Texas from January 1990 through October 1997. This is the longest continual phytoplankton bloom of which we are aware. Although the factors leading to the initiation of this bloom have been well documented, the factors contributing to its ...
Edward J Buskey   +2 more
exaly   +3 more sources
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Ammonium release from resuspended sediments in the Laguna Madre estuary

Marine Chemistry, 1999
Abstract Sediments can play an important role in estuarine ecosystems by buffering environmental nutrient concentrations in overlying waters. This study examined the role of surface chemistry in controlling the release of NH4+ from resuspended sediments in the large, shallow, negative estuary Laguna Madre, TX.
John W. Morse
exaly   +2 more sources

Impacts of wind turbines on redheads in the Laguna Madre

The Journal of Wildlife Management, 2018
ABSTRACTFreshwater ponds adjacent to the Laguna Madre along the lower Texas coast provide an important and heavily used source of fresh water for the redhead (Aythya americana) throughout winter. A 267‐turbine wind farm was constructed within the core wintering area of the redhead on a private ranch along the western coast of the Laguna Madre, in 2010.
Corey J. Lange   +2 more
openaire   +1 more source

Coastal Pond Use by Redheads Wintering in the Laguna Madre, Texas

Wetlands, 2010
The distribution of North American redheads (Aythya americana) during winter is highly concentrated in the Laguna Madre of Texas and Tamaulipas, Mexico. Redheads forage almost exclusively in the lagoon and primarily on shoalgrass (Halodule wrightii) rhizomes; however, they make frequent flights to adjacent coastal ponds to dilute salt loads ingested ...
Bart M. Ballard   +4 more
openaire   +2 more sources

Acoustical characterization of a seagrass meadow in the Lower Laguna Madre

The Journal of the Acoustical Society of America, 2017
This talk presents preliminary results from an experiment conducted in the Lower Laguna Madre, Texas to characterize the physical and acoustical properties in a meadow of Thalassia testudinum. Concurrent measurements were collected using (1) acoustic probes, (2) side-scan and parametric sonar, (3) broadband propagation, and (4) sediment cores.
Megan S. Ballard   +7 more
openaire   +1 more source

Seagrasses, Dredging and Light in Laguna Madre, Texas, U.S.A.

Estuarine, Coastal and Shelf Science, 1994
Abstract Light reduction resulting from maintenance dredging was the suspected cause of large-scale loss of seagrass cover in deep parts of Laguna Madre between surveys conducted in 1965 and 1974. Additional changes to 1988, together with an analysis of dredging frequency and intensity for different parts of the laguna, were consistent with this ...
exaly   +2 more sources

Trace elements and organochlorines in the shoalgrass community of the lower Laguna Madre, Texas

Environmental Monitoring and Assessment, 1993
Our objectives were to measure concentrations of seven trace elements and 14 organochlorine compounds in sediment and biota of the shoalgrass (Halodule wrightii) community of the lower Laguna Madre of south Texas and to determine whether chemicals associated with agriculture (e.g. mercury, arsenic, selenium, organochlorine pesticides) were highest near
T W, Custer, C A, Mitchell
openaire   +2 more sources

The decline and recovery of a persistent Texas brown tide algal bloom in the Laguna Madre (Texas, USA)

open access: yesEstuaries and Coasts, 2001
The Laguna Madre has experienced a persistent bloom of Aureoumbra lagunensis for over eight years. The persistence of this bloom may be due in part to the often hypersaline conditions in Laguna Madre (40-60 psu) that favor the growth of A.
Edward J Buskey
exaly   +2 more sources

Factors Controlling Navigation-Channel Shoaling in Laguna Madre, Texas

Journal of Waterway, Port, Coastal, and Ocean Engineering, 2001
Shoaling in the Gulf Intracoastal Waterway of Laguna Madre, Texas, is caused primarily by recycling of dredged sediments. Sediment recycling, which is controlled by water depth and location with respect to the predominant wind driven currents, is minimal where dredged material is placed on tidal flats that are either flooded infrequently or where the ...
Robert A. Morton   +2 more
openaire   +1 more source

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