DEPTH PROFILES OF AMINO-ACIDS IN POREWATER OF SEDIMENTS FROM THE NORWEGIAN - GREENLAND SEA

被引：0
|
作者：
MINTROP, L
DUINKER, JC
机构：
来源：
OCEANOLOGICA ACTA | 1994年 / 17卷 / 06期
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中图分类号：
P7 [海洋学];
学科分类号：
0707 ;
摘要：
Dissolved free amino acids (DFAA) and dissolved combined amino acids (DCAA) were determined in the porewater of sediment cores from the Norwegian-Greenland Sea (water depth from 1000 to 3300 m). Concentrations in the sediment column were generally found to decrease with depth. The amino acid composition of DFAA and DCAA was remarkably constant. The relative contributions of acidic amino acids decrease with depth, however. Composition patterns for samples for water depth 1000-2000 m and for deep-sea samples (water depth > 3000 m) show characteristic differences. Some secondary concentration maxima several centimeters below the sediment-water interface are found, probably related to the bioturbation activity of benthic macrofauna.
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页码：621 / 631
页数：11
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