Vertical Patterns of Early Summer Chlorophyll a Concentration in the Indian Ocean with Special Reference to the Variation of Deep Chlorophyll Maximum
Joint Authors
Lin, Qiang
Li, Gang
Fan, Yanzhi
Shen, Pingping
Huang, Liangmin
Tan, Yehui
Ni, Guangyan
Source
Issue
Vol. 2012, Issue 2012 (31 Dec. 2012), pp.1-6, 6 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2012-08-15
Country of Publication
Egypt
No. of Pages
6
Main Subjects
Abstract EN
Vertical patterns of early summer chlorophyll a (Chl a) concentration from the Indian Ocean are presented, as well as the variations of depth and size-fractioned Chl a in the deep chlorophyll maximum (DCM).
A total of 38 stations were investigated from 12 April to 5 May 2011, with 8 discrete-depth samples (7 fixed and 1 variable at real DCM) measured at each station.
Depth-integrated Chl a concentration (∑Chl a) varied from 11.5 to 26.8 mg m−2, whereas Chl a content at DCM ranged from 0.17 to 0.57 μg L−1 with picophytoplankton (<3 μm) accounting for 82% to 93%.
The DCM depth varied from 55.6 to 91 m and shoaled latitudinally to northward.
Moreover, our results indicated that the ∑Chl a could be underestimated by up to 9.3% with a routine sampling protocol of collecting samples only at 7 fixed depths as the real DCM was missed.
The underestimation was negatively correlated to the DCM depth when it varied from 55.6 to 71.3 m (r=−0.63, P<0.05) but positively correlated when it ranged from 75.8 to 91 m (r=0.68, P<0.01).
This indicates that in the Indian Ocean the greater the departure of the DCM from 75 m depth, the greater the underestimation of integrated Chl a concentration that could occur if the real DCM is missed.
American Psychological Association (APA)
Li, Gang& Lin, Qiang& Ni, Guangyan& Shen, Pingping& Fan, Yanzhi& Huang, Liangmin…[et al.]. 2012. Vertical Patterns of Early Summer Chlorophyll a Concentration in the Indian Ocean with Special Reference to the Variation of Deep Chlorophyll Maximum. Journal of Marine Biology،Vol. 2012, no. 2012, pp.1-6.
https://search.emarefa.net/detail/BIM-499093
Modern Language Association (MLA)
Li, Gang…[et al.]. Vertical Patterns of Early Summer Chlorophyll a Concentration in the Indian Ocean with Special Reference to the Variation of Deep Chlorophyll Maximum. Journal of Marine Biology No. 2012 (2012), pp.1-6.
https://search.emarefa.net/detail/BIM-499093
American Medical Association (AMA)
Li, Gang& Lin, Qiang& Ni, Guangyan& Shen, Pingping& Fan, Yanzhi& Huang, Liangmin…[et al.]. Vertical Patterns of Early Summer Chlorophyll a Concentration in the Indian Ocean with Special Reference to the Variation of Deep Chlorophyll Maximum. Journal of Marine Biology. 2012. Vol. 2012, no. 2012, pp.1-6.
https://search.emarefa.net/detail/BIM-499093
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-499093