Results 191 to 200 of about 4,927 (221)
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Carbonate mud; production by epibiont growth on Thalassia testudinum
Journal of Sedimentary Research, 1970ABSTRACT 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.
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Nitrogen fixation (acetylene reduction) in the phyllosphere of Thalassia testudinum
Marine Biology, 1977N2 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
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The grazing of Thalassia testudinum in Kingston Harbour, Jamaica
Aquatic Botany, 1976Abstract 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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Wound-induced accumulations of condensed tannins in turtlegrass, Thalassia testudinum
Aquatic Botany, 2008Abstract 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 +3 more
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Sulfide effects on Thalassia testudinum carbon balance and adenylate energy charge
Aquatic Botany, 2000Abstract Low iron content in tropical carbonate sediments limits the formation of iron–sulfide compounds such as pyrite. Thus, seagrasses in the tropics may be more susceptible to sulfide toxicity. Sediment sulfide levels greater than 2 mM and up to 13 mM have been hypothesized to cause widespread ‘die-back’ of the tropical seagrass Thalassia ...
James M Erskine, Marguerite S Koch
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Thalassia testudinum response to the interactive stressors hypersalinity, sulfide and hypoxia
Aquatic Botany, 2007Abstract A large-scale mesocosm (sixteen 500 L tanks) experiment was conducted to investigate the effects of hypersalinity (45–65 psu), porewater sulfide (2–6 mM) and nighttime water column hypoxia (5–3 mg L−1) on the tropical seagrass Thalassia testudinum Banks ex Konig.
Koch, Marguerite S. +4 more
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Turtle Grass (Thalassia testudinum Banks ex König) — A Seagrass
1988Seagrasses are aquatic angiosperms that live and complete their life cycles totally submerged in a saline-to-brackish medium (Thayer et al. 1975). They are unique in that they are the only land plants that have totally returned to the sea. Although not true grasses, their habit of ribbon-like leaves results in meadows or beds resembling terrestrial ...
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Photosynthetic activity detected in the seed epidermis of Thalassia testudinum
Aquatic Botany, 2017Abstract Seagrasses are marine angiosperms that have evolved from terrestrial ancestors. Photosynthetic activity on seed has been studied before in Posidonia genus. T. testudinum and P. oceanica share some evolutionary aspects as they live in more stable environments. As in P. oceanica , T.
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Transplantation of the seagrass Thalassia testudinum König
Aquaculture, 1974openaire +1 more source