Abundant bioluminescent sources of low‑light intensity in the deep Mediterranean Sea and North Atlantic Ocean
13 pages, 4 figures, 3 tables, supplementary material http://dx.doi.org/10.1007/s00227-015-2700-2 Light plays a critical role in the functioning of the marine environment. In the dark ocean, bioluminescent organisms are the only visually relevant sources of light. Cameras of different sensitivities...
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ftcsic:oai:digital.csic.es:10261/122272 2024-02-11T10:06:42+01:00 Abundant bioluminescent sources of low‑light intensity in the deep Mediterranean Sea and North Atlantic Ocean Craig, Jessica Priede, Imants G. Aguzzi, Jacopo Company, Joan B. Jamieson, Alan 2015-08 http://hdl.handle.net/10261/122272 https://doi.org/10.1007/s00227-015-2700-2 unknown Springer http://dx.doi.org/10.1007/s00227-015-2700-2 Sí doi:10.1007/s00227-015-2700-2 issn: 0025-3162 e-issn: 1432-1793 Marine Biology 162(8): 1637-1649 (2015) http://hdl.handle.net/10261/122272 none artículo http://purl.org/coar/resource_type/c_6501 2015 ftcsic https://doi.org/10.1007/s00227-015-2700-2 2024-01-16T10:10:37Z 13 pages, 4 figures, 3 tables, supplementary material http://dx.doi.org/10.1007/s00227-015-2700-2 Light plays a critical role in the functioning of the marine environment. In the dark ocean, bioluminescent organisms are the only visually relevant sources of light. Cameras of different sensitivities were used to compare the density of pelagic bioluminescent sources (BL) of different light intensities at a regional scale: the image-intensified charge-coupled device for deep-sea research (ICDeep), an image-intensified silicon intensifier target (ISIT) camera and a silicon intensifier target (SIT) camera. Pelagic ICDeep values were higher than ISIT measurements by a mean factor of 7.6 in the Mediterranean Sea and 3.5 in the Atlantic Ocean. Atlantic ISIT values were higher than SIT values by a mean factor of 4.5. Standardising bioluminescence measurements to the near-seafloor (0–400 m above bottom) layer, BLNSF, a logarithmic decrease with depth was observed from three independent datasets (slopes not significantly different): ISIT (Atlantic, Mediterranean), ICDeep (Mediterranean). Intercepts from ICDeep measurements were higher than ISIT measurements by a factor of 4.4. From these trends, a conversion factor to calculate benthopelagic plankton biomass from near-seafloor BLNSF density was derived. Calibration of the ICDeep enabled calculation of the minimum intensity of source visible to that camera. BLNSF sources of low-light intensity (≥1.4 × 10−7 W m−2) outnumber fourfold sources of greater intensity (>ca. 10−6 W m−2 (λ peak = 470 nm). This reveals a high abundance of low-light bioluminescent sources in the marine environment, with mean pelagic densities of 33.15 sources m−3 (Atlantic) and 6.79 sources m−3 (Mediterranean) between 500 and 1500 m depth. © 2015, Springer-Verlag Berlin Heidelberg J.C. was funded by UK NERC studentship (NE/F012020/1). J.A. was funded by Ramon y Cajal program (MICINN) Peer Reviewed Article in Journal/Newspaper North Atlantic Digital.CSIC (Spanish National Research Council) Marine Biology 162 8 1637 1649 |
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Digital.CSIC (Spanish National Research Council) |
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13 pages, 4 figures, 3 tables, supplementary material http://dx.doi.org/10.1007/s00227-015-2700-2 Light plays a critical role in the functioning of the marine environment. In the dark ocean, bioluminescent organisms are the only visually relevant sources of light. Cameras of different sensitivities were used to compare the density of pelagic bioluminescent sources (BL) of different light intensities at a regional scale: the image-intensified charge-coupled device for deep-sea research (ICDeep), an image-intensified silicon intensifier target (ISIT) camera and a silicon intensifier target (SIT) camera. Pelagic ICDeep values were higher than ISIT measurements by a mean factor of 7.6 in the Mediterranean Sea and 3.5 in the Atlantic Ocean. Atlantic ISIT values were higher than SIT values by a mean factor of 4.5. Standardising bioluminescence measurements to the near-seafloor (0–400 m above bottom) layer, BLNSF, a logarithmic decrease with depth was observed from three independent datasets (slopes not significantly different): ISIT (Atlantic, Mediterranean), ICDeep (Mediterranean). Intercepts from ICDeep measurements were higher than ISIT measurements by a factor of 4.4. From these trends, a conversion factor to calculate benthopelagic plankton biomass from near-seafloor BLNSF density was derived. Calibration of the ICDeep enabled calculation of the minimum intensity of source visible to that camera. BLNSF sources of low-light intensity (≥1.4 × 10−7 W m−2) outnumber fourfold sources of greater intensity (>ca. 10−6 W m−2 (λ peak = 470 nm). This reveals a high abundance of low-light bioluminescent sources in the marine environment, with mean pelagic densities of 33.15 sources m−3 (Atlantic) and 6.79 sources m−3 (Mediterranean) between 500 and 1500 m depth. © 2015, Springer-Verlag Berlin Heidelberg J.C. was funded by UK NERC studentship (NE/F012020/1). J.A. was funded by Ramon y Cajal program (MICINN) Peer Reviewed |
format |
Article in Journal/Newspaper |
author |
Craig, Jessica Priede, Imants G. Aguzzi, Jacopo Company, Joan B. Jamieson, Alan |
spellingShingle |
Craig, Jessica Priede, Imants G. Aguzzi, Jacopo Company, Joan B. Jamieson, Alan Abundant bioluminescent sources of low‑light intensity in the deep Mediterranean Sea and North Atlantic Ocean |
author_facet |
Craig, Jessica Priede, Imants G. Aguzzi, Jacopo Company, Joan B. Jamieson, Alan |
author_sort |
Craig, Jessica |
title |
Abundant bioluminescent sources of low‑light intensity in the deep Mediterranean Sea and North Atlantic Ocean |
title_short |
Abundant bioluminescent sources of low‑light intensity in the deep Mediterranean Sea and North Atlantic Ocean |
title_full |
Abundant bioluminescent sources of low‑light intensity in the deep Mediterranean Sea and North Atlantic Ocean |
title_fullStr |
Abundant bioluminescent sources of low‑light intensity in the deep Mediterranean Sea and North Atlantic Ocean |
title_full_unstemmed |
Abundant bioluminescent sources of low‑light intensity in the deep Mediterranean Sea and North Atlantic Ocean |
title_sort |
abundant bioluminescent sources of low‑light intensity in the deep mediterranean sea and north atlantic ocean |
publisher |
Springer |
publishDate |
2015 |
url |
http://hdl.handle.net/10261/122272 https://doi.org/10.1007/s00227-015-2700-2 |
genre |
North Atlantic |
genre_facet |
North Atlantic |
op_relation |
http://dx.doi.org/10.1007/s00227-015-2700-2 Sí doi:10.1007/s00227-015-2700-2 issn: 0025-3162 e-issn: 1432-1793 Marine Biology 162(8): 1637-1649 (2015) http://hdl.handle.net/10261/122272 |
op_rights |
none |
op_doi |
https://doi.org/10.1007/s00227-015-2700-2 |
container_title |
Marine Biology |
container_volume |
162 |
container_issue |
8 |
container_start_page |
1637 |
op_container_end_page |
1649 |
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1790604596646772736 |