The application of optical coherence tomography to image subsurface tissue structure of Antarctic krill Euphausia superba
Many small open ocean animals, such as Antarctic krill, are an important part of marine ecosystems. To discover what will happen to animals such as krill in a changing ocean, experiments are run in aquaria where conditions can be controlled to simulate water characteristics predicted to occur in the...
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| creator | Bellini, Nicola Cox, Martin J Harper, Danielle J Stott, Sebastian R Ashok, Praveen C Dholakia, Kishan Kawaguchi, So King, Robert Horton, Tammy Brown, Christian T A |
| description | Many small open ocean animals, such as Antarctic krill, are an important part of marine ecosystems. To discover what will happen to animals such as krill in a changing ocean, experiments are run in aquaria where conditions can be controlled to simulate water characteristics predicted to occur in the future. The response of individual animals to changing water conditions can be hard to observe, and with current observation techniques it is very difficult to follow the progress of an individual animal through its life. Optical coherence tomography (OCT) is an optical imaging technique that allows images at high resolution to be obtained from depths up to a few millimeters inside biological specimens. It is compatible with in vivo imaging and can be used repeatedly on the same specimens. In this work, we show how OCT may be applied to post mortem krill samples and how important physiological data such as shell thickness and estimates of organ volume can be obtained. Using OCT we find an average value for the thickness of krill exoskeleton to be (30±4) µm along a 1 cm length of the animal body. We also show that the technique may be used to provide detailed imagery of the internal structure of a pleopod joint and provide an estimate for the heart volume of (0.73±0.03) mm3. |
| doi_str_mv | 10.1371/journal.pone.0110367 |
| format | Article |
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To discover what will happen to animals such as krill in a changing ocean, experiments are run in aquaria where conditions can be controlled to simulate water characteristics predicted to occur in the future. The response of individual animals to changing water conditions can be hard to observe, and with current observation techniques it is very difficult to follow the progress of an individual animal through its life. Optical coherence tomography (OCT) is an optical imaging technique that allows images at high resolution to be obtained from depths up to a few millimeters inside biological specimens. It is compatible with in vivo imaging and can be used repeatedly on the same specimens. In this work, we show how OCT may be applied to post mortem krill samples and how important physiological data such as shell thickness and estimates of organ volume can be obtained. Using OCT we find an average value for the thickness of krill exoskeleton to be (30±4) µm along a 1 cm length of the animal body. We also show that the technique may be used to provide detailed imagery of the internal structure of a pleopod joint and provide an estimate for the heart volume of (0.73±0.03) mm3.</description><identifier>ISSN: 1932-6203</identifier><identifier>EISSN: 1932-6203</identifier><identifier>DOI: 10.1371/journal.pone.0110367</identifier><identifier>PMID: 25310589</identifier><language>eng</language><publisher>United States: Public Library of Science</publisher><subject>Animals ; Aquaria ; Aquariums ; Astronomy ; Biology and Life Sciences ; Crustaceans ; Data processing ; Earth Sciences ; Ecology and Environmental Sciences ; Environmental changes ; Euphausia superba ; Euphausiacea ; Euphausiacea - anatomy & histology ; Exoskeleton ; Exoskeletons ; Food chains ; Image resolution ; Imaging, Three-Dimensional ; Krill ; Light emitting diodes ; Marine biology ; Marine ecosystems ; Medical imaging ; Observation techniques ; Oceanography ; Oceans ; Optical Coherence Tomography ; Optics ; Physical Sciences ; Physics ; Polar environments ; Predictive control ; Tomography ; Tomography, Optical Coherence - methods ; Ultrasonic imaging</subject><ispartof>PloS one, 2014-10, Vol.9 (10), p.e110367-e110367</ispartof><rights>COPYRIGHT 2014 Public Library of Science</rights><rights>2014 Bellini et al. This is an open-access article distributed under the terms of the Creative Commons Attribution License: http://creativecommons.org/licenses/by/4.0/ (the “License”), which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited. 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To discover what will happen to animals such as krill in a changing ocean, experiments are run in aquaria where conditions can be controlled to simulate water characteristics predicted to occur in the future. The response of individual animals to changing water conditions can be hard to observe, and with current observation techniques it is very difficult to follow the progress of an individual animal through its life. Optical coherence tomography (OCT) is an optical imaging technique that allows images at high resolution to be obtained from depths up to a few millimeters inside biological specimens. It is compatible with in vivo imaging and can be used repeatedly on the same specimens. In this work, we show how OCT may be applied to post mortem krill samples and how important physiological data such as shell thickness and estimates of organ volume can be obtained. 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We also show that the technique may be used to provide detailed imagery of the internal structure of a pleopod joint and provide an estimate for the heart volume of (0.73±0.03) mm3.</description><subject>Animals</subject><subject>Aquaria</subject><subject>Aquariums</subject><subject>Astronomy</subject><subject>Biology and Life Sciences</subject><subject>Crustaceans</subject><subject>Data processing</subject><subject>Earth Sciences</subject><subject>Ecology and Environmental Sciences</subject><subject>Environmental changes</subject><subject>Euphausia superba</subject><subject>Euphausiacea</subject><subject>Euphausiacea - anatomy & histology</subject><subject>Exoskeleton</subject><subject>Exoskeletons</subject><subject>Food chains</subject><subject>Image resolution</subject><subject>Imaging, Three-Dimensional</subject><subject>Krill</subject><subject>Light emitting diodes</subject><subject>Marine biology</subject><subject>Marine ecosystems</subject><subject>Medical imaging</subject><subject>Observation techniques</subject><subject>Oceanography</subject><subject>Oceans</subject><subject>Optical Coherence Tomography</subject><subject>Optics</subject><subject>Physical Sciences</subject><subject>Physics</subject><subject>Polar environments</subject><subject>Predictive control</subject><subject>Tomography</subject><subject>Tomography, Optical Coherence - 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To discover what will happen to animals such as krill in a changing ocean, experiments are run in aquaria where conditions can be controlled to simulate water characteristics predicted to occur in the future. The response of individual animals to changing water conditions can be hard to observe, and with current observation techniques it is very difficult to follow the progress of an individual animal through its life. Optical coherence tomography (OCT) is an optical imaging technique that allows images at high resolution to be obtained from depths up to a few millimeters inside biological specimens. It is compatible with in vivo imaging and can be used repeatedly on the same specimens. In this work, we show how OCT may be applied to post mortem krill samples and how important physiological data such as shell thickness and estimates of organ volume can be obtained. Using OCT we find an average value for the thickness of krill exoskeleton to be (30±4) µm along a 1 cm length of the animal body. We also show that the technique may be used to provide detailed imagery of the internal structure of a pleopod joint and provide an estimate for the heart volume of (0.73±0.03) mm3.</abstract><cop>United States</cop><pub>Public Library of Science</pub><pmid>25310589</pmid><doi>10.1371/journal.pone.0110367</doi><oa>free_for_read</oa></addata></record> |
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| subjects | Animals Aquaria Aquariums Astronomy Biology and Life Sciences Crustaceans Data processing Earth Sciences Ecology and Environmental Sciences Environmental changes Euphausia superba Euphausiacea Euphausiacea - anatomy & histology Exoskeleton Exoskeletons Food chains Image resolution Imaging, Three-Dimensional Krill Light emitting diodes Marine biology Marine ecosystems Medical imaging Observation techniques Oceanography Oceans Optical Coherence Tomography Optics Physical Sciences Physics Polar environments Predictive control Tomography Tomography, Optical Coherence - methods Ultrasonic imaging |
| title | The application of optical coherence tomography to image subsurface tissue structure of Antarctic krill Euphausia superba |
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