Results 121 to 130 of about 658 (166)

Regrowth of the seagrass Thalassia testudinum into propeller scars

Aquatic Botany, 1997
Abstract Regrowth of turtle grass, Thalassia testudinum Banks ex Konig, into existing propeller scars and artificial cuts was studied in a mangal estuary located in Tampa Bay, Florida. Sediments from scars and cuts and adjacent grass beds were not significantly different in relation to particle size distribution and levels of calcium carbonate ...
Clinton J. Dawes, John Andorfer, Craig Rose, Christina Uranowski, Nicholas Ehringer   +4 more
openaire   +1 more source

Vegetative Branching in Thalassia testudinum (Hydrocharitaceae)-A Correction

Botanical Gazette, 1972
Horizontal scale-bearing rhizomes in Thalassia produce, at fairly regular but distant intervals, lateral branches which develop into erect, leafy shoots. These branches are leaf-opposed, not axillary. Since they originate precociously and are at first equal to the main axis, it had been suggested that they are the result of an equal dichotomy of the ...
P. B. Tomlinson, G. W. Bailey
openaire   +1 more source

Observations on the reproductive ecology of Thalassia testudinum (hydrocharitaceae)

Aquatic Botany, 1981
Abstract A phenological inversion in Thalassia testudinum Banks ex Konig was indicated by the presence of early fruit stage in midwinter. Further observations in Januarary 1979 detected early reproductive bud presence, and 44% of the short-shoots examined were reproductive.
Mark D. Moffler, Michael J. Durako, William F. Grey   +2 more
openaire   +1 more source

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
openaire   +2 more sources

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
openaire   +1 more source

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
openaire   +2 more sources

Spectral reflectance of Thalassia testudinum with varying depths

IEEE International Geoscience and Remote Sensing Symposium, 2003
Seagrasses are an important component in the marine ecosystem, and also a vulnerable resource subject to environmental change. Satellite and airborne remote sensing has been applied in monitoring and mapping seagrasses. One research issue from a remote sensing perspective is the spectral impact of water column depths since seagrasses normally grow in ...
openaire   +1 more source

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
openaire   +2 more sources

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
openaire   +2 more sources

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%.
openaire   +1 more source