Using bioluminescence as a tool for studying diversity in marine zooplankton and dinoflagellates: an initial assessment

被引:0
|
作者
Letendre, Francis [1 ]
Blackburn, Abigail [1 ]
Malkiel, Ed [1 ]
Twardowski, Michael [1 ]
机构
[1] Florida Atlantic Univ, Oceanog Inst, Harbor Branch, Ft Pierce, FL 34946 USA
来源
PEERJ | 2024年 / 12卷
关键词
Bioluminescence; Zooplankton; Dinoflagellate; Flash kinetics; UBAT; Biodiversity; STIMULATED BIOLUMINESCENCE; PYRODINIUM-BAHAMENSE; MNEMIOPSIS-LEIDYI; NORTH-ATLANTIC; VARIABILITY; BATHYPHOTOMETER; UROCHORDATA; EXCITATION; RESPONSES; PATTERNS;
D O I
10.7717/peerj.17516
中图分类号
O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];
学科分类号
07 ; 0710 ; 09 ;
摘要
Bioluminescence is light chemically produced by an organism. It is widespread across all major marine phyla and has evolved multiple times, resulting in a high diversity of spectral properties and first flash kinetic parameters (FFKP). The bioluminescence of a system is often a good proxy for planktonic biomass. The species-specific parameters of bioluminescent displays can be measured to identify species in situ and describe planktonic biodiversity. Most bioluminescent organisms will flash when mechanically stimulated i.e., when subjected to supra-threshold levels of shear stress. Here we compare first flash kinetic parameters such as flash duration, peak intensity, rise time, decay time, first-flash mechanically stimulated light and e-folding time obtained with the commercially available Underwater Bioluminescence Assessment Tool (UBAT). We provide descriptions of the first flash kinetic parameters of several species of dinoflagellates Pyrocystis fusiformis, Pyrocystis noctiluca, Pyrodinium bahamense, Lingulodinium polyedra, Alexandrium monilatum and two zooplankton (the ctenophore Mnemiopsis leidyi and the larvacean Oikopleura sp.). FFKPs are then compared and discussed using non-parametric analyses of variance (ANOVAs), hierarchical clustering and a linear discriminant analysis to assess the ability to use bioluminescence signatures for identification. Once the first flash kinetic parameters of a bioluminescent species have been described, it is possible to detect its presence using emissions collected by in situ bathyphotometers. Assessing abundance and diversity of bioluminescent species may therefore be possible.
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页数:25
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