Biometric assessment of deep-sea vent megabenthic communities using multi-resolution 3D image reconstructions
Biometric assessment of deep-sea vent megabenthic communities using multi-resolution 3D image reconstructions
This paper describes a method to survey the distribution of megabenthos over multi-hectare regions of the seafloor. Quantitative biomass estimates are made by combining high-resolution 3D image reconstructions, used to model spatial relationships between representative taxa, with lower-resolution reconstructions taken over a wider area in which the distribution of larger predatory animals can be observed. The method is applied to a region of the Iheya North field that was the target of scientific drilling during the IODP Expedition 331 in 2010. An area of 2.5 ha was surveyed 3 years and 4 months after the site was drilled. More than 100,000 organisms from 6 taxa were identified. The visible effects of drilling on the distribution of megabenthos were confined to a 20 m radius of the artificially created hydrothermal discharges, with the associated densities of biomass lower than observed in nearby naturally discharging areas.
200-219
Thornton, Blair
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Bodenmann, Adrian
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Pizarro, Oscar
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Williams, Stefan B.
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Friedman, Ariell
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Nakajima, Ryota
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Takai, Ken
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Motoki, Kaori
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Watsuji, Tomo-o
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Hirayama, Hisako
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Matsui, Yohei
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Watanabe, Hiromi
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Ura, Tamaki
b8fea5ba-e731-40fd-8544-1db1ca9f356b
Thornton, Blair
8293beb5-c083-47e3-b5f0-d9c3cee14be9
Bodenmann, Adrian
070a668f-cc2f-402a-844e-cdf207b24f50
Pizarro, Oscar
45a78dfb-5f85-4595-bfc8-d1ac46f2e7bb
Williams, Stefan B.
c9477238-5139-4b74-804c-3b9b464f6949
Friedman, Ariell
6133e6fa-4fad-4d7e-bbf5-90c54c22d050
Nakajima, Ryota
c871cdb4-a7be-4ced-a6e7-5e521a3a77bc
Takai, Ken
ab7b7a53-c1c2-4005-a646-8e9472147011
Motoki, Kaori
4297652a-2b3e-4ca6-9df6-a64ba10093a0
Watsuji, Tomo-o
683c9b87-9e4c-42e0-ab74-279a648e9ac5
Hirayama, Hisako
ccd565c8-b283-46c7-ac1a-7b0b289c6249
Matsui, Yohei
e86d428b-331d-4c45-b79a-1f541a85198b
Watanabe, Hiromi
bfcc87e3-ed51-44ac-8eb3-e8fb274d7387
Ura, Tamaki
b8fea5ba-e731-40fd-8544-1db1ca9f356b
Thornton, Blair, Bodenmann, Adrian, Pizarro, Oscar, Williams, Stefan B., Friedman, Ariell, Nakajima, Ryota, Takai, Ken, Motoki, Kaori, Watsuji, Tomo-o, Hirayama, Hisako, Matsui, Yohei, Watanabe, Hiromi and Ura, Tamaki
(2016)
Biometric assessment of deep-sea vent megabenthic communities using multi-resolution 3D image reconstructions.
Deep Sea Research Part I: Oceanographic Research Papers, 116, .
(doi:10.1016/j.dsr.2016.08.009).
Abstract
This paper describes a method to survey the distribution of megabenthos over multi-hectare regions of the seafloor. Quantitative biomass estimates are made by combining high-resolution 3D image reconstructions, used to model spatial relationships between representative taxa, with lower-resolution reconstructions taken over a wider area in which the distribution of larger predatory animals can be observed. The method is applied to a region of the Iheya North field that was the target of scientific drilling during the IODP Expedition 331 in 2010. An area of 2.5 ha was surveyed 3 years and 4 months after the site was drilled. More than 100,000 organisms from 6 taxa were identified. The visible effects of drilling on the distribution of megabenthos were confined to a 20 m radius of the artificially created hydrothermal discharges, with the associated densities of biomass lower than observed in nearby naturally discharging areas.
Other
1-s2.0-S0967063716301091-main.pdf__tid=5308d172-74c7-11e6-abce-00000aacb35d&acdnat=1473231192_79200de70cff2125b83f3ffa1dd08228
- Accepted Manuscript
More information
Accepted/In Press date: 27 August 2016
e-pub ahead of print date: 28 August 2016
Organisations:
Fluid Structure Interactions Group
Identifiers
Local EPrints ID: 400004
URI: http://eprints.soton.ac.uk/id/eprint/400004
ISSN: 0967-0637
PURE UUID: 3f724688-b443-4545-b496-3d770e985ed0
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Date deposited: 06 Sep 2016 15:28
Last modified: 15 Mar 2024 03:59
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Contributors
Author:
Oscar Pizarro
Author:
Stefan B. Williams
Author:
Ariell Friedman
Author:
Ryota Nakajima
Author:
Ken Takai
Author:
Kaori Motoki
Author:
Tomo-o Watsuji
Author:
Hisako Hirayama
Author:
Yohei Matsui
Author:
Hiromi Watanabe
Author:
Tamaki Ura
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