Results 151 to 160 of about 3,868 (196)

Leaf epifauna of the seagrass Thalassia testudinum

Marine Biology, 1982
The abundance, composition and trophic relationships of metazoan leaf epifauna of the marine angiosperm Thalassia testudinum Konig were studied in Barbados, West Indies. Approximately 90 species from 11 phyla consisted chiefly of nematodes, harpacticoid copepods, crustacean nauplii, ostracods, and turbellarians. Epiflora- and detritus-feeders dominated
J. B. Lewis, C. E. Hollingworth
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Photoperiodism and Related Ecology in Thalassia testudinum

Botanical Gazette, 1968
A study was conducted to determine, through ecological observations and experimental manipulation, whether the marine angiosperm Thalassia testudinum Koening and Sims is responsive to photoperiod. The field observations, made in St. Andrew Bay on the northwestern Gulf Coast of Florida and in Biscayne Bay on the southern Atlantic Coast of Florida ...
Allan D. Marmelstein, Page W. Morgan, Willis E. Pequegnat   +2 more
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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
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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
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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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Occurrence of intracellular crystals in leaves of Thalassia testudinum

Aquatic Botany, 2004
Abstract Refractive, rhomboidal, intracellular crystals were identified in leaves of Thalassia testudinum Banks ex Konig (turtlegrass) from the Bahamas (Lee Stocking Island); Florida (Key Largo and Key West); and Texas (Laguna Madre). At all four collection sites, crystals were present in leaves of all ages and in most but not all epidermal cells ...
Fred C. Dobbs, Richard C. Zimmerman, Lisa A. Drake   +2 more
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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
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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 ...
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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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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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