Nutrient mass balance of the seagrass Posidonia oceanica:the importance of nutrient retranslocation
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چکیده
منابع مشابه
Nutrient mass balance of the seagrass Posidonia oceanica: the importance of nutrient retranslocation
The seasonal nutrient mass balance of the dominant seagrass of the Mediterranean, Posidonia oceanica (L.) Delde, was evaluated in NE Spain in order to test the hypothesis that the effect of seasonal nutrient imbalance can be reduced by the reutllization of internal nutrient pools. To this end we investigated the seasonal and age-dependent variability of nitrogen and phosphorus concentration of ...
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Retention and excretion of phosphorus and nitrogen were determined for turkeys fed 2 diets at 3 ages, via mass balance based on the nutrient content of consumed feed, carcasses, and litter. The 2 diets consisted of an industry diet (IND) and a low phosphorus + 600 U of phytase/kg (LP) diet. A subsample of birds was weighed and killed at 12, 15, and 18 wk of age for nutrient retention (via whole...
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Data on nutrient contents of 27 seagrass species at 30 locations were compiled from the literature. Mean (f SE) concentrations of carbon, nitrogen and phosphorus in seagrass leaves were 33.6 2 0.31, 1.92 f 0.05, and 0.23 2 0.011 % dry wt, respectively. The median C:N:P ratio was 474 :24: 1, which represents a C:P ratio more than 4 times, and a N:P ratio more than 1.5 times that of oceanic sesto...
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Most individuals maintain a stable body weight over long periods of their lives. This indicates that individual average energy intakes usually vary around the same mean as average energy expenditures. But energy balance is likely to be maintained only if body composition remains constant, since accumulation or depletion of protein, carbohydrate, or fat would in time lead to alterations in food ...
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The River Kali in western Uttar Pradesh, India is a typical water course for untreated municipal and industrial effluents. The river receives considerable amounts of waste every day from the industries and municipal area of Muzaffarnagar town. Agricultural runoff is the other major factor in pollution of the river water. The mass balance calculations conducted on the river reach indicate that n...
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ژورنال
عنوان ژورنال: Marine Ecology Progress Series
سال: 2000
ISSN: 0171-8630,1616-1599
DOI: 10.3354/meps194013