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Abstract Variations in tissue carbon (C), nitrogen (N) content, and non-structural carbohydrate (NSC) reserves in the turtle grass Thalassia testudinum Banks ex Knig were examined in relation to changes in sediment-N availability in Corpus Christi Bay (CCB) and lower Laguna Madre (LLM), Texas, USA, from May to October 1997. Under natural conditions, sediment pore-water NH+4-concentrations were higher...
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