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Correction ARTICLE Provisionally accepted The full-text will be published soon. Notify me

Front. Mar. Sci. | doi: 10.3389/fmars.2018.00424

Corrigendum: N2 fixation in the Eastern Arabian Sea: Probable Role of Heterotrophic Diazotrophs

 Pullabhatla K. Kumar1,  Arvind Singh1*, Ramesh Rengaswamy1 and Nallathambi T.2
  • 1Biological Oceanography, Physical Research Laboratory, India
  • 2National Institute of Ocean Technology, India

In the original article, we made a mistake in the reporting N2 fixation and carbon uptake rates. While reporting mean N2 fixation and mean carbon uptake rates, we forgot to include the duplicate values in calculation in the original article. We provide correct values in the following sections, figures and tables as described. The authors apologize for this error and state that this does not change the scientific conclusions of the article in any way.

RESULTS AND DISCUSSION
In the sub-section “N2 Fixation Rate and Carbon Uptake”, first line of the first paragraph:

N2 fixation rates varied from 4.01 - 238.07 nM N hr-1, while carbon uptake rate ranged between 16 - 1628 nM C hr-1 (Fig. 5).

In sixteenth line of the first paragraph:

Heterotrophs contributed up to 52% to the total N2 fixation (estimated from light and dark incubations, assuming light incubations correspond to phototrophic and dark to heterotrophic).

CONCLUSION
In the eighth line:
Based on the higher N2 fixation values at the surface for dark incubation, we hypothesize that heterotrophic fixers dominantly (about 52% of total N2 fixation is by heterotrophs) play an important role in fixing N2.

FIGURES:
In the original article, there were mistakes in Fig. 5, Fig. 6, Table 1 and Table 2 as published. The figures and tables are now redrawn and reported with the revised N2 fixation and carbon uptake rates. In Table 2, we reported areal rates wrongly in the last row. The corrected Fig. 5, Fig. 6, Table 1 and Table 2 are presented below. The authors apologize for this error and state that this does not change the scientific conclusions of the article in any way.

Conflict of Interest Statement
The authors declare that the research was conducted in the absence of any commercial or financial relationships that could be construed as a potential conflict of interest.

Keywords: dinitrogen fixation, 15N, 13C, nitrogen budget, Carbon uptake rate, Nutrients, biogeochemistry, Arabian Sea

Received: 30 Aug 2018; Accepted: 23 Oct 2018.

Edited by:

Selvaraj Kandasamy, Xiamen University, China

Reviewed by:

Mar Benavides, Institut de recherche pour le développement (IRD), France  

Copyright: © 2018 Kumar, Singh, Rengaswamy and T.. This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.

* Correspondence: Dr. Arvind Singh, Physical Research Laboratory, Biological Oceanography, Ahmedabad, 24105, India, arvinds@prl.res.in