Organic matter composition in coastal sediments at Terra Nova Bay (Ross Sea) during summer 1995 |
| |
| Authors: | Antonio Pusceddu Antonio Dell'Anno Mauro Fabiano |
| |
| Affiliation: | (1) Institute of Marine Sciences, University of Ancona, Via Brecce Bianche, I-60131 Ancona, Italy e-mail: pusceddu@popcsi.unian.it Tel.: +39-71-2204654, Fax: +39-71-2204650, IT;(2) Department for the Study of the Territory and its Resources, University of Genoa, Corso Europa, 26, I-16132 Genoa, Italy, IT |
| |
| Abstract: | We illustrate the spatial and vertical distribution of sediment phytopigments and organic matter biochemical composition at Terra Nova Bay (Ross Sea) during summer 1995. Coastal sediments displayed high phytopigments concentrations associated with huge amounts of labile organic matter largely dominated by proteins. This result was opposite to previous observations in the same area. Such comparison suggested that whilst organic matter quantity in the sediments depended upon the vertical input from the water column, temporal changes in its biochemical composition were related to benthic processes. As considerably high concentrations of biopolymeric organic carbon were found even at 6-cm depth and according to the “loss type” functioning of the coastal waters of the Ross Sea, we stress the summer time occurrence in coastal sediments of an important organic matter burial. Accepted: 24 October 1999 |
| |
| Keywords: | |
| 本文献已被 SpringerLink 等数据库收录！ |
|
