Results 161 to 170 of about 3,554 (188)

Phosphorus uptake kinetics of a dominant tropical seagrass Thalassia testudinum

Aquatic Botany, 2003
Although nitrogen is primarily the dominant nutrient limiting seagrass production in temperate estuaries, phosphorus (P) limitation can be important in tropical carbonate-dominated seagrass systems. While nitrogen uptake kinetics of seagrasses are moderately well established, very limited data exist on the dynamics of P-uptake.
Amy F Gras, Marguerite S Koch, Christopher J Madden   +2 more
openaire   +1 more source

Carbonate mud; production by epibiont growth on Thalassia testudinum

Journal of Sedimentary Research, 1970
ABSTRACT Epibiotic growth of coralline red algae and serpulid worms on the marine turtle grass Thalassia testudinum is sufficient to produce carbonate mud at rates comparable to the rates of accumulation of ancient platform carbonates.
openaire   +1 more source

Hypersalinity as a trigger of seagrass ( Thalassia testudinum ) die-off events in Florida Bay: Evidence based on shoot meristem O 2 and H 2 S dynamics

Journal of Experimental Marine Biology and Ecology, 2018
The mechanisms initiating rapid, large-scale (>50 km2) seagrass die-off events globally remain elusive. Thalassia testudinum, a dominant habitat-forming tropical seagrass of the Caribbean and tropical Atlantic region, experiences recurrent die-off events
C. Johnson, M. Koch, O. Pedersen, C. Madden   +3 more
semanticscholar   +1 more source

Spatial and temporal variation of the δ15N in Thalassia testudinum in the Mexican Caribbean (2009–2017)

, 2020
Wastewater pollution in seagrass has been documented for decades. In areas where baseline data are lacking, such as the Mexican Caribbean, the δ15N of seagrass can provide information on status and trends.
Alberto Sánchez, D. Anguas-Cabrera, K. Camacho-Cruz, M. Ortiz-Hernández, S. Aguíñiga-García   +4 more
semanticscholar   +1 more source

Seagrass Abundance Predicts Surficial Soil Organic Carbon Stocks Across the Range of Thalassia testudinum in the Western North Atlantic

Estuaries and Coasts, 2023
J. Fourqurean, J. Campbell, O. Rhoades, Calvin J Munson, J. Krause, A. Altieri, James G. Douglass, K. Heck, V. Paul, A. Armitage, S. Barry, Enrique Bethel, L. Christ, M. Christianen, Grace Dodillet, Katrina Dutton, T. Frazer, Bethany M. Gaffey, R. Glazner, Janelle A. Goeke, Rancel Grana-Valdes, Olivier A. A. Kramer, Samantha T. Linhardt, Charles W. Martin, I. López, A. McDonald, Vivienne A. Main, Sarah A. Manuel, C. Marco-Méndez, D. O’Brien, Owen O’Shea, C. Patrick, C. Peabody, Laura K. Reynolds, A. Rodríguez, Lucia M. Rodriguez Bravo, Amanda Sang, Y. Sawall, F. Smulders, J. Thompson, B. V. Van Tussenbroek, William L. Wied, Sara S. Wilson   +42 more
semanticscholar   +1 more source

Nitrogen fixation (acetylene reduction) in the phyllosphere of Thalassia testudinum

Marine Biology, 1977
N2 fixation (C2H2 reduction) associated with the leaves of the sea grass Thalassia testudinum was investigated at 5 sites in South Florida (Biscayne Bay) and one site in the Bahamas (Bimini Harbor). Significant activities were correlated with the occurrence of a heterocystous blue-green alga (Calothrix sp.) on the leaves.
D. G. Capone, B. F. Taylor
openaire   +1 more source

Monitoring of physically restored seagrass meadows reveals a slow rate of recovery for Thalassia testudinum

Restoration Ecology, 2018
Physical damage by motor vessels is a widespread problem for seagrass meadows, with hull and propeller strikes accounting for thousands of acres of impaired habitat in Florida, United States, alone.
B. Furman, M. Merello, C. Shea, W. Kenworthy, M. Hall   +4 more
semanticscholar   +1 more source

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 ...
openaire   +1 more source

Wound-induced accumulations of condensed tannins in turtlegrass, Thalassia testudinum

Aquatic Botany, 2008
Abstract Turtlegrass, Thalassia testudinum, produces high concentrations of proanthocyanidins (condensed tannins) which we hypothesized are induced by grazing, as a component of a general wound response. To test this we quantified condensed tannins in a variety of turtlegrass tissues following simulated fish grazing, grazing by the urchin Lytechinus ...
Thomas M. Arnold, Christopher E. Tanner, Michelle Rothen, Jessica Bullington   +3 more
openaire   +1 more source

Irradiance, Water Column O2, and Tide Drive Internal O2 Dynamics and Meristem H2S Detection in the Dominant Caribbean-Tropical Atlantic Seagrass, Thalassia testudinum

Estuaries and Coasts, 2022
M. Koch, C. R. Johnson, C. Madden, O. Pedersen   +3 more
semanticscholar   +1 more source