Results 191 to 200 of about 18,562 (221)
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Submerged macrophytes of Lake Pupuke, Takapuna, New Zealand
New Zealand Journal of Marine and Freshwater Research, 1987Abstract Lake Pupuke is unique in New Zealand in that all four obligate submerged members of the adventive Hydrocharitaceae, Vallis‐neria gigantea Graebn., and the “oxygen weeds” Lagarosiphon major (Ridl.) Moss ex Wagner, Elo‐dea canadensis Michx., and Egeria densa Planch, co‐exist there.
Brian T. Coffey, John S. Clayton
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Submerged and floating-leaved aquatic macrophytes (euhydrophytes)
1985Euhydrophytes, i.e. floating-leaved rooted, and submerged plants (see Chapter 1). rarely attract the same attention or have the same environmental impact in African waterways as emergent and surface-floating species. The problems with papyrus swamps in East Africa and the Sudd in the Sudan, and the water-weed menaces of Pistia stratiotes, Eichhornia ...
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Oxygen Release from Roots of Submerged Aquatic Macrophytes
Oikos, 1982low in Zostera (1%) and among stream macrophytes (2-4%), but quite high in the isoetids (28-100%). Among the species tested, Lobelia dortmanna had the highest rate of release from roots during illumination (3.12 9g 02 mg-' h-1) which represented 100% of the total oxygen release.
Kaj Sand-Jensen +2 more
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Variation in growth rates of submerged rooted macrophytes
Aquatic Botany, 1991Abstract Above-ground growth rates of 14 temperate, submerged freshwater macrophytes were measured in the laboratory at high dissolved inorganic carbon levels (3.3-3.8 mM), nutrient saturation and photon flux densities (phoosynthetically active radiation (PAR) of 14.4 mol m−2 day−1 at 15°C. Growth rates ranged from 0.007 to 0.109 day−1, corresponding
Nielsen, S.L., Sand-Jensen, Kaj
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Mineralogical composition of submerged aquatic macrophytes from Connecticut
SIL Proceedings, 1922-2010, 1975(1975). Mineralogical composition of submerged aquatic macrophytes from Connecticut. SIL Proceedings, 1922-2010: Vol. 19, No. 4, pp. 2749-2757.
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Herbivory on submerged macrophytes – who's to blame?
SIL Proceedings, 1922-2010, 2002S. Körner, E. S. G. Schreiber, N. Walz
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