NDLI: Peculiarities of the primary production process in the Kara Sea at the end of the vegetation season

Content Provider	Springer Nature Link
Author	Mosharov, S. A. Demidov, A. B. Simakova, U. V.
Copyright Year	2016
Abstract	Research was implemented from September 15 through October 4, 2011 in the Kara Sea along transects located southeastwards Novaya Zemlya, in the St. Anna Trough, the Yenisei River estuary, and the adjacent shelf. The concentration of chlorophyll a was the highest in the photic zone (0.05–2.30 mg/m$^{3}$, on average, 0.80 ± 0.37 mg/m$^{3}$). The maximal concentration of Chl a at most of the stations located in the water layer of 7–30 m. Integral primary production in the water column varied from 3.0 to 151.0 mg C/m$^{2}$ per day, on average, 37.2 ± 36.6 mg C/m$^{2}$ per day. The maximal rate of primary production at most of the stations has been observed for the surface layer of the water column. Within the upper mixed water layer, relative primary production was from 31 to 100% (on average, 77 ± 20%). The most productive zone was the waters along Yenisei transect. In the estuary and at the adjacent shelf, primary production was 50 mg C/m$^{2}$ per day, exceeding the range observed for other areas by 1.5–2.0 times. The concentrations of silica and nitrogen together with light regime and water temperature were the major limiting factors affecting the primary production rate in the Kara Sea in autumn.
Starting Page	84
Ending Page	94
Page Count	11
File Format	PDF
ISSN	00014370
Journal	Oceanology
Volume Number	56
Issue Number	1
e-ISSN	15318508
Language	English
Publisher	Pleiades Publishing
Publisher Date	2016-04-06
Publisher Place	Moscow
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Oceanography
Content Type	Text
Resource Type	Article
Subject	Oceanography

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