Results 141 to 150 of about 1,140 (181)

N₂ fixation in the rhizosphere of Thalassia testudinum

Canadian Journal of Microbiology, 1980
N2 fixation (C2H2 reduction) associated with the roots, rhizomes, and sediments (rhizosphere cores) of the seagrass Thalassia testudinum was measured at sites in South Florida (Soldier Key, Biscayne Bay) and the Bahamas (Bimini Harbor). Rates of C2H2 reduction were higher in anaerobic than in aerobic assays and were linear for several hours after an ...
D G, Capone, B F, Taylor
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Effects of heavy rainfall on Thalassia testudinum beds

Aquatic Botany, 2007
In December 1999 heavy continuous rains that lasted one week affected the Venezuelan coastline. At Morrocoy National Park, a large marine reserve, rainfall values surpassed previous 32-year records and led to a decrease of salinity to 3 psu, which lasted for over a month at some locations.
Iliana Chollett, David Bone, Daisy Pérez   +2 more
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Biomass and Productivity of Thalassia testudinum in Estuaries of the Florida Panhandle

Gulf and Caribbean Research, 2023
Thalassia testudinum often dominates seagrass meadows of the Florida panhandle but few measurements of productivity, biomass, density, turnover or leaf area index in this region have been made. We targeted 5 estuaries located at similar latitudes, 30⁰ ± 0.3⁰N: Big Lagoon, Santa Rosa Sound, St. Andrew Bay, St. Joseph Bay, and St. George Sound.
Yarbro, Laura A, Carlson, Paul R, Heck, Ken L, Byron, Dorothy, Brooke, Sandra, Fitzhugh, Linda, Scolaro, Sheila, Albrecht, Barbara, Presley, Rachel, Caffrey, Jane M   +9 more
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Changes in trace metals in Thalassia testudinum after hurricane impacts

Marine Pollution Bulletin, 2011
Major hurricanes Emily and Wilma hit the Mexican Caribbean in 2005. Changes in trace metals in the seagrass Thalassia testudinum prior to (May 2004, 2005) and following passage of these hurricanes (May, June 2006) were determined at four locations along a ≈ 130 km long stretch of coast.
T, Whelan, B I, Van Tussenbroek, M G Barba, Santos   +2 more
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The water economy of the sea grass Thalassia testudinum

Marine Biology, 1971
The osmotic values in the leaves of Thalassia testudinumBanks ex Konig, collected from the natural habitat, were found to be 32 atm; the relative transpiration was 100%. Electronmicroscopical analysis of the cuticle reveals many perforations. The critical sublethal water deficit lies near 65%.
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ABCG2/BCRP interaction with the sea grass Thalassia testudinum

Drug Metabolism and Personalized Therapy, 2015
Abstract Background: The aqueous ethanolic extract from leaves of the marine plant Thalassia testudinum has shown antioxidant, cytoprotective, and neuroprotective properties.
Verónica, Miguel, Jon A, Otero, Borja, Barrera, Idania, Rodeiro, Julio G, Prieto, Gracia, Merino, Ana I, Álvarez   +6 more
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Some Chemical Constituents of Turtle Grass, Thalassia testudinum

Bulletin of the Torrey Botanical Club, 1959
Primary biological productivity in the coastal waters of Puerto Rico is based upon the synthetic processes of phytoplankton, benthic algae, mangroves, corals and the turtle grass, Thalassia testudinum. A considerable portion of the total production of organic matter in this region appears to be contributed by the large beds of Thalassia, widely ...
Paul R. Burkholder, Lillian M. Burkholder, Juan A. Rivero   +2 more
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The grazing of Thalassia testudinum in Kingston Harbour, Jamaica

Aquatic Botany, 1976
Abstract There are approximately 1,000 ha of Thalassia testudinum Banks ex Konig in Kingston Harbour, and the most extensive and luxuriant meadows are concentrated in the shallow waters (0.5–4.0 m depth) at the western end of the harbour. A pure stand of Thalassia of mean blade standing crop value (epiphyte-free) of 249 g dry weight/m2 and ...
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Factors affecting the reproductive ecology of Thalassia testudinum (Hydrocharitaceae)

Aquatic Botany, 1987
Abstract Morpho-anatomical studies of short-shoots of Thalassia testudinum Banks ex Konig collected in Tampa Bay, Florida from February 1979 to October 1980 ( n = 5394) demonstrated the presence of sexually reproductive short-shoots during all months, except August and September. Mean inflorescence lengths (MIL) indicated that little inflorescence
Michael J. Durako, Mark D. Moffler
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Calcium carbonate production by epibionts on Thalassia in Florida Bay

Journal of Sedimentary Research, 1986
Abstract Annual production of lime mud by two genera of red algae and one genus of serpulid worms was estimated for an area of modern lime mud accumulation in Eastern Florida Bay. The red algae Melobesia membranacea and Fosliella farinosa and the serpulid worm Spirobis sp.
John E. Nelsen, Robert N. Ginsburg
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