First record of biofluorescence in lumpfish (<i>Cyclopterus lumpus</i>), a commercially farmed cleaner fish

Juhasz-Dora, Thomas; Teague, Jonathan; Doyle, Thomas K.; Maguire, Julie

doi:10.1111/jfb.15154

Cited by 6 publications

(3 citation statements)

References 25 publications

(57 reference statements)

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“…In Octocorallia, bioluminescent species are found in pennatulaceans, alcyonaceans (in Paraspaerasclera grayi, in the genera Anthomastus, and Iridogorgia) and in gorgonians (in the genera Halypterus, Iridogorgia, and Chrysogorgia) with some species expressing fluorescent antenna proteins (Panceri, 1872;Parker, 1920;Harvey, 1952;Nicol, J., A., C., 1955;Haddock, Moline & Case, 2010;Raddatz et al, 2011;Frank, Tamara, M. et al, 2016). Luciferases, for example, coexist with GFPs in Renilla mülleri, Renilla köllikeri, Stylatula elongate, Acanthoptilum gracile, and Ptilosarcus guernyi, (Wampler et al, 1973;Shimomura & Johnson, 1975;Matz et al, 1999;Labas et al, 2002;Haddock et al, 2010). In addition, FPs have been identified in the genera Clavularia, Dendronephyta, and Sarcophyton (all Alcyonacea) (Matz et al, 1999;Labas et al, 2002;.…”

Section: Other Observations Of Fluorescencementioning

confidence: 99%

Diversity and function of fluorescent molecules in marine organisms

Poding,

Jägers,

Huhn

et al. 2023

Preprint

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Fluorescence in marine organisms has mainly been studied in corals but is found in many different phyla such as Annelida, Crustacea, Mollusca, and Chordata. While many fluorescent proteins and molecules have been identified, very little information is available about the biological function of fluorescence. In this review, we focus on describing the occurrence of fluorescence in marine animals and the behavioural and physiological functions of fluorescent molecules based on experimental approaches. These biological functions of fluorescence range from prey and symbiont attraction, photoprotection, photoenhancement, stress mitigation, mimicry, aposematism to inter- and intraspecific communication. We provide a comprehensive list of marine taxa that utilize fluorescence, including demonstrated effects on behavioural or physiological responses. On one hand, this review describes the numerous known functions of fluorescence in anthozoans and their underlying molecular mechanisms in detail. On the other hand, it highlights which marine taxa should be further studied regarding their functions of fluorescence. We suggest that an increase in research effort in this field could contribute to understanding the capacity of marine organisms in mitigating negative effects of climate change.

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Section: Other Observations Of Fluorescencementioning

confidence: 99%

Diversity and function of fluorescent molecules in marine organisms

Poding,

Jägers,

Huhn

et al. 2023

Preprint

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“…The histological results, good tolerance of lumpfish to freshwater, and the lack of morbidity/post treatment mortalities during clinical trials indicate that treatment of lumpfish with freshwater baths can be successful with either short- or long-term treatments 4 . Juvenile lumpfish reared in an aquaculture facility are known to produce a bright green fluorescence 6 . Furthermore, a study of lumpfish serum taken from sexually mature wild fish found female lumpfish producing a blue–green blood serum that fluoresced a pale blue under long-wave UV light (~ 350 nm), with the red-colored male serum emitting a magenta–orange fluorescence 7 .…”

Section: Introductionmentioning

confidence: 99%

Biofluorescent response in lumpfish Cyclopterus lumpus to a therapeutic stressor as assessed by hyperspectral imaging

Juhasz-Dora,

Lindberg,

Karlsen

et al. 2024

Sci Rep

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The demand for lumpfish (Cyclopterus lumpus) as a biological control for salmon lice is increasing. However, lumpfish welfare is considered a limiting factor within aquaculture operations. Identifying a noninvasive parameter that measures subclinical stress in lumpfish is a key goal for improving their welfare. The lumpfish is documented to emit green and red biofluorescence within the blue shifted light of their environment. Here we show that lumpfish fluorescence responds to a therapeutic stressor within a controlled experiment. Lumpfish (n = 60) underwent a 3-h freshwater bath therapeutant to evaluate whether fluorescence spectra produced by the species respond to external stimuli. Lumpfish were quickly scanned under a hyperspectral camera (400–1000 nm spectral range) prior to and after treatment. The lumpfish were randomly divided into 3 groups with identical treatment. All groups increased fluorescence emissions, though the level of change depended on whether the averaged, red, or green spectra were analyzed; the control group (n = 20) remained constant. All lumpfish emitted green fluorescence (~ 590–670 nm) while a portion (49%) produced red fluorescence (~ 690–800 nm). As lumpfish fluorescence shifts in response to the applied stressor, this study provides insight into how fluorescence may be incorporated into the welfare management of lumpfish.

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“…Juvenile lump sh reared in an aquaculture facility produce a bright green uorescence 5 . With approximately 29 species in 7 genera being recorded in Cyclopteridae 6 , this dimorphic uorescence may be widespread.…”

Section: Introductionmentioning

confidence: 99%

Biofluorescent response in lumpfish Cyclopterus lumpus to a therapeutic procedure as assessed by hyperspectral imaging

Juhasz-Dora,

Lindberg,

Karlsen

et al. 2023

Preprint

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The demand for lumpfish (Cyclopterus lumpus) as a biological control for salmon lice is increasing. However, lumpfish welfare is considered a limiting factor within aquaculture operations. Identifying a noninvasive parameter that measures subclinical stress in lumpfish is a key goal for improving their welfare. The lumpfish is amongst many marine species documented to biofluoresce within the blue shifted light of their environment. Lumpfish (n = 80) underwent a 3-hour freshwater bath therapeutant to evaluate whether fluorescence spectra produced by the species responds to external stimuli. Lumpfish were quickly scanned under a hyperspectral camera (400–1000 nm spectral range) prior to and after treatment. Here we show that lumpfish fluorescence responds to freshwater exposure within a controlled experiment. All three experimental groups increased their fluorescence in response to treatment, though the level of change depended on whether the averaged, red, or green spectra was analyzed; the control group remained consistent. The mean emission spectra differ between groups, particularly between 690 to 750 nm. All lumpfish emit green fluorescence while a segment (49%) produced red fluorescence. As lumpfish fluorescence shifts in response to the applied therapeutant, this study provides insight into how fluorescence may be incorporated into the welfare management of an aquatic species.

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First record of biofluorescence in lumpfish (Cyclopterus lumpus), a commercially farmed cleaner fish

Cited by 6 publications

References 25 publications

Diversity and function of fluorescent molecules in marine organisms

Diversity and function of fluorescent molecules in marine organisms

Biofluorescent response in lumpfish Cyclopterus lumpus to a therapeutic stressor as assessed by hyperspectral imaging

Biofluorescent response in lumpfish Cyclopterus lumpus to a therapeutic procedure as assessed by hyperspectral imaging

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