DISTRIBUTION OF PARTICULATE MATTER IN THE SOUTHEASTERN BEAUFORT SEA IN LATE SUMMER (Ninth Symposium on Polar Biology)

As part of the Northern Oil and Gas Action Program (NOGAP) forty-one stations were occupied for measurements of CTD/transmissometer, suspended particulate matter (SPM), chlorophyll-a (Chl-a), and particulate organic carbon (POC) in the southeastern Beaufort Sea in September 1986. Preliminary results...

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Bibliographic Details
Main Authors: イセキ カズオ, Kazuo ISEKI, Robie W. MACDONALD, Eddy CARMACK
Format: Report
Language:English
Published: Proceeding 1987
Subjects:
Arctic
Arctic Ocean
Mackenzie River
Beaufort Sea
Mackenzie river
Mackenzie Shelf
Phytoplankton
Polar Biology
Proceedings of the NIPR Symposium on Polar Biology
Online Access:https://nipr.repo.nii.ac.jp/?action=repository_uri&item_id=5013
http://id.nii.ac.jp/1291/00005013/
https://nipr.repo.nii.ac.jp/?action=repository_action_common_download&item_id=5013&item_no=1&attribute_id=18&file_no=1
Description
Summary:As part of the Northern Oil and Gas Action Program (NOGAP) forty-one stations were occupied for measurements of CTD/transmissometer, suspended particulate matter (SPM), chlorophyll-a (Chl-a), and particulate organic carbon (POC) in the southeastern Beaufort Sea in September 1986. Preliminary results indicate that both the Mackenzie River and sediments in the nearshore (about 5 m or less) are two major particulate sources to the surface layer of the inner shelf (estuary). Further, a near-bottom light-attenuating layer was normally observed on the shelf. Compared to the interior Arctic Ocean, water over the Mackenzie Shelf has POC concentrations almost an order of magnitude higher throughout the water column (from surface to 350 m depth). This is probably a result of organic particles added to the surface layer by river input and phytoplankton production with subsequent settling into deeper water during the open-water season.

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