Hydrogeochemistry of the surface waters of the Mackenzie River drainage basin, Canada—II. The contribution of amino acids, hydrocarbons and chlorins to the Beaufort Sea by the Mackenzie River system

Peake, E.; Baker, B. L.; Hodgson, G. W.

doi:10.1016/0016-7037(72)90054-3

Cited by 63 publications

(32 citation statements)

References 22 publications

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“…In addition, significant amounts of glutamic acid are contained by marine bacteria (Henrichs and Farrington, 1979) and by oceanic suspended particulate matter (Siezen and Magne, 1978). This contrasts with the predominance of aspartic acids over glutamic acid found in terrestrial humic hydrolates, river suspensions, and sediments rich in terrestrial organic material (Peake et al, 1972;Khan and Sowden, 1972;Pelet and Debyser, 1977). Glutamic acid has three times the concentration of aspartic acid, accounting for 18% of the total THAA, which is consistent with the composition of plankton.…”

Section: Sources Of Thaamentioning

confidence: 88%

Organic Properties of Sediments and Amino Acids in Interstitial Waters from the Flank of the Costa Rica Rift, Galapagos Spreading Center (ODP Sites 677 and 678)

Kawahata¹,

Ishizuka²

1989

Proceedings of the Ocean Drilling Program

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Section: Sources Of Thaamentioning

confidence: 88%

Organic Properties of Sediments and Amino Acids in Interstitial Waters from the Flank of the Costa Rica Rift, Galapagos Spreading Center (ODP Sites 677 and 678)

Kawahata¹,

Ishizuka²

1989

Proceedings of the Ocean Drilling Program

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“…With a few exceptions (e.g. Peake et al 1972) characterizations of major biochemical compounds, such as carbohydrates, proteins, and lignins in rivers have been limited to studies of benthic (Pocklington 1976;Pocklington and Leonard 1979; or estuarine (van de Meent et al 1980;Sigleo et al 1982;Lohse and Michaelis 1983) materials.…”

mentioning

confidence: 99%

Compositions and fluxes of particulate organic material in the Amazon River1

Hedges

Clark

Quay

et al. 1986

Limnology & Oceanography

791

512

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“…Aspartic acid content is usually equal to glutamic acid content in marine plankton and marine suspended matter (Siezen and Mague, 1978). River suspensions which originated from terrigenous materials show predominance of aspartic and glutamic acids, glycine and alanine (Peake et al, 1972).…”

Section: Combined Amino Acids In Interstitial Waters Inmentioning

confidence: 99%

Amino Acids in the Interstitial Waters from ODP Site 695 in the Weddell Sea|Antarctic Ocean

Kawahata¹,

Ishizuka²,

Nagao³

1990

Proceedings of the Ocean Drilling Program

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Site 695 lies on the southeast margin of the South Orkney microcontinent on the northern margin of the Weddell Sea, at 62°23.48'S, 43°27.10'W in 1305 m water depth. The inorganic properties of interstitial waters at this site, including sulfate reduction, biogenic methane production, and high concentrations of ammonia and phosphate, imply high microbial activity. However, no clear relationship between amino acid composition and concentration and the type of microbial activity (e.g., sulfate reduction or methane production) can be identified.The THAA (total hydrolyzable amino acids) values range between 2.45 and 17.31 jumol/L, averaging 7.14 ^mol/L. The mean concentrations and relative abundance values of acidic, basic, neutral, aromatic, and sulfur-containing amino acids are 1.34 (18%), 1.09 (15%), 3.93 (54%), 0.50 (8%), and 0.02 (0%) /xmol/L, respectively. Glycine is the most abundant amino acid residue, with serine, glutamic acid, and ornithine next. The DFAA (dissolved free amino acids) values range from 0.10 to 12.73 junol/L, averaging 4.07 /rniol/L. The acidic, basic, neutral, aromatic, and sulfurcontaining amino acids are on average 0.21, 0.79, 2.56, 0.41, and 0.01 /xmol/L, respectively. The relative abundances of acidic, basic, neutral, and aromatic amino acids average 4%, 18%, 58%, and 15%, respectively.Predominance of DFAA over DCAA (dissolved combined amino acids) in interstitial waters of Lithologic Units I and II is contrary to the predominance of DCAA over DFAA in other interstitial waters and seawater.The comparison of amino acid compositions between DCAA and siliceous plankton suggests that the DCAA in interstitial waters originally comes from amino acids derived from siliceous plankton. However, other sources which are much enriched in glutamic acid contribute to the DCAA composition.

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Hydrogeochemistry of the surface waters of the Mackenzie River drainage basin, Canada—II. The contribution of amino acids, hydrocarbons and chlorins to the Beaufort Sea by the Mackenzie River system

Cited by 63 publications

References 22 publications

Organic Properties of Sediments and Amino Acids in Interstitial Waters from the Flank of the Costa Rica Rift, Galapagos Spreading Center (ODP Sites 677 and 678)

Organic Properties of Sediments and Amino Acids in Interstitial Waters from the Flank of the Costa Rica Rift, Galapagos Spreading Center (ODP Sites 677 and 678)

Compositions and fluxes of particulate organic material in the Amazon River1

Amino Acids in the Interstitial Waters from ODP Site 695 in the Weddell Sea|Antarctic Ocean

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