کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
6383350 | 1626314 | 2016 | 20 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Biometric assessment of deep-sea vent megabenthic communities using multi-resolution 3D image reconstructions
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
علوم زمین و سیارات
زمین شناسی
پیش نمایش صفحه اول مقاله
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چکیده انگلیسی
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 2.5Â 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 20Â m radius of the artificially created hydrothermal discharges, with the associated densities of biomass lower than observed in nearby naturally discharging areas.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Deep Sea Research Part I: Oceanographic Research Papers - Volume 116, October 2016, Pages 200-219
Journal: Deep Sea Research Part I: Oceanographic Research Papers - Volume 116, October 2016, Pages 200-219
نویسندگان
Blair Thornton, Adrian Bodenmann, Oscar Pizarro, Stefan B. Williams, Ariell Friedman, Ryota Nakajima, Ken Takai, Kaori Motoki, Tomo-o Watsuji, Hisako Hirayama, Yohei Matsui, Hiromi Watanabe, Tamaki Ura,