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Investigation of autofluorescence in zooplankton for use in classification of larval salmon lice

Nielsen, J. H. LU ; Pedersen, C. ; Kiørboe, T. ; Nikolajsen, T. ; Brydegaard, M. LU and Rodrigo, P. J. (2019) In Applied Optics 58(26). p.7022-7027
Abstract

We present autofluorescence of six zooplankton species, including salmon lice (Lepeophtheirus salmonis), for the purpose of classification in marine environments. Using a 410 nm excitation wavelength, we find that all measured zooplankton species exhibit broad cyan fluorescence centered around 510–520 nm. Furthermore, salmon lice show an absence of red fluorescence from undigested chlorophyll, which is measured from the gut of the herbivorous zooplankton species. We show the capability to distinguish noneating species, including salmon lice, from algae-eating species using a dual-band analysis of the fluorescence spectra. This shows the potential of autofluorescence as an important signature in real-time monitoring and classification of... (More)

We present autofluorescence of six zooplankton species, including salmon lice (Lepeophtheirus salmonis), for the purpose of classification in marine environments. Using a 410 nm excitation wavelength, we find that all measured zooplankton species exhibit broad cyan fluorescence centered around 510–520 nm. Furthermore, salmon lice show an absence of red fluorescence from undigested chlorophyll, which is measured from the gut of the herbivorous zooplankton species. We show the capability to distinguish noneating species, including salmon lice, from algae-eating species using a dual-band analysis of the fluorescence spectra. This shows the potential of autofluorescence as an important signature in real-time monitoring and classification of salmon lice.

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author
; ; ; ; and
organization
publishing date
type
Contribution to journal
publication status
published
subject
in
Applied Optics
volume
58
issue
26
pages
6 pages
publisher
Optical Society of America
external identifiers
  • pmid:31503970
  • scopus:85072012283
ISSN
1559-128X
DOI
10.1364/AO.58.007022
language
English
LU publication?
yes
id
0833a9b3-90a6-46dc-bb5a-22aa68ecf205
date added to LUP
2019-09-16 14:18:09
date last changed
2024-06-26 02:38:43
@article{0833a9b3-90a6-46dc-bb5a-22aa68ecf205,
  abstract     = {{<p>We present autofluorescence of six zooplankton species, including salmon lice (Lepeophtheirus salmonis), for the purpose of classification in marine environments. Using a 410 nm excitation wavelength, we find that all measured zooplankton species exhibit broad cyan fluorescence centered around 510–520 nm. Furthermore, salmon lice show an absence of red fluorescence from undigested chlorophyll, which is measured from the gut of the herbivorous zooplankton species. We show the capability to distinguish noneating species, including salmon lice, from algae-eating species using a dual-band analysis of the fluorescence spectra. This shows the potential of autofluorescence as an important signature in real-time monitoring and classification of salmon lice.</p>}},
  author       = {{Nielsen, J. H. and Pedersen, C. and Kiørboe, T. and Nikolajsen, T. and Brydegaard, M. and Rodrigo, P. J.}},
  issn         = {{1559-128X}},
  language     = {{eng}},
  number       = {{26}},
  pages        = {{7022--7027}},
  publisher    = {{Optical Society of America}},
  series       = {{Applied Optics}},
  title        = {{Investigation of autofluorescence in zooplankton for use in classification of larval salmon lice}},
  url          = {{http://dx.doi.org/10.1364/AO.58.007022}},
  doi          = {{10.1364/AO.58.007022}},
  volume       = {{58}},
  year         = {{2019}},
}