Unexpected high abyssal ophiuroid diversity in polymetallic nodule fields of the northeast Pacific Ocean and  implications for conservation

Christodoulou, Magdalini; O'Hara, Timothy; Hugall, Andrew F.; Khodami, Sahar; Rodrigues, Clara F.; Hilario, Ana; Vink, Annemiek; Martinez Arbizu, Pedro

doi:https://doi.org/10.5194/bg-17-1845-2020

Articles | Volume 17, issue 7

https://doi.org/10.5194/bg-17-1845-2020

© Author(s) 2020. This work is distributed under
the Creative Commons Attribution 4.0 License.

Special issue:

Assessing environmental impacts of deep-sea mining...

https://doi.org/10.5194/bg-17-1845-2020

© Author(s) 2020. This work is distributed under
the Creative Commons Attribution 4.0 License.

Articles | Volume 17, issue 7

Research article

|

07 Apr 2020

Research article |

| 07 Apr 2020

Unexpected high abyssal ophiuroid diversity in polymetallic nodule fields of the northeast Pacific Ocean and implications for conservation

Magdalini Christodoulou, Timothy O'Hara, Andrew F. Hugall, Sahar Khodami, Clara F. Rodrigues, Ana Hilario, Annemiek Vink, and Pedro Martinez Arbizu

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Final revised paper (published on 07 Apr 2020)
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Preprint (discussion started on 26 Nov 2019)
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Interactive discussion

Status: closed

AC: Author comment | RC: Referee comment | SC: Short comment | EC: Editor comment

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- Supplement

RC1: 'one minor typo', Chris Mah, 09 Dec 2019
- AC1: 'Reply to reviewer 1 (Chris Mah)', Magdalini Christodoulou, 15 Jan 2020
- AC3: 'Reply to Referee #1_additional', Magdalini Christodoulou, 15 Jan 2020
RC2: 'Comments', Anonymous Referee #2, 23 Dec 2019
- AC4: 'Reply to Referee #2', Magdalini Christodoulou, 16 Jan 2020
RC3: 'Comments', Anonymous Referee #3, 02 Jan 2020
- AC2: 'Reply to Anonymous Referee #3', Magdalini Christodoulou, 15 Jan 2020

Peer-review completion

AR: Author's response | RR: Referee report | ED: Editor decision

ED: Publish subject to minor revisions (review by editor) (16 Jan 2020) by Tina Treude

AR by Magdalini Christodoulou on behalf of the Authors (08 Feb 2020) Author's response Manuscript

ED: Publish subject to technical corrections (11 Feb 2020) by Tina Treude

AR by Magdalini Christodoulou on behalf of the Authors (04 Mar 2020) Author's response Manuscript

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Short summary

Unexpectedly high diversity was revealed in areas licenced for polymetallic nodule mining exploration in the Pacific Ocean. For the first time, a comprehensive reference library including 287 novel ophiuroid sequences allocated to 43 species was produced. Differences in food availability along the nodule province of CCZ were reflected in the biodiversity patterns observed. The APEI3's dissimilarity with the exploration contract areas questions its ability to serve as a biodiversity reservoir.