Diminished foraging performance of a mutant zebrafish with reduced population of ultraviolet cones

Flamarique, Inĩgo Novales

doi:10.1098/rspb.2016.0058

Cited by 50 publications

(56 citation statements)

References 48 publications

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“…In addition to the light environment and UV‐based visual signalling, reef‐fish vision is strongly influenced by feeding habits. UV‐sensitive photoreceptors have previously been suggested as crucial for prey capture in several marine and freshwater planktivorous species such as salmonids (Salmonidae) and zebrafish Danio rerio (Hamilton 1822) (McFarland & Loew, ; Losey et al ., ; Siebeck & Marshall, ; Flamarique, , ). Planktivory might similarly be driving UV vision in many reef‐fish species (see above for discussion on this).…”

Section: Reef Fishes Colour Visionmentioning

confidence: 99%

Colours and colour vision in reef fishes: Past, present and future research directions

Marshall

Cortesi

Busserolles

et al. 2018

Journal of Fish Biology

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Many fishes, both freshwater or marine, have colour vision that may outperform humans. As a result, to understand the behavioural tasks that vision enables; including mate choice, feeding, agonistic behaviour and camouflage, we need to see the world through a fish's eye. This includes quantifying the variable light environment underwater and its various influences on vision. As well as rapid loss of light with depth, light attenuation underwater limits visual interaction to metres at most and in many instances, less than a metre. We also need to characterize visual sensitivities, fish colours and behaviours relative to both these factors. An increasingly large set of techniques over the past few years, including improved photography, submersible spectrophotometers and genetic sequencing, have taken us from intelligent guesswork to something closer to sensible hypotheses. This contribution to the special edition on the Ecology of Fish Senses under a shifting environment first reviews our knowledge of fish colour vision and visual ecology, past, present and very recent, and then goes on to examine how climate change may impinge on fish visual capability. The review is limited to mostly colour vision and to mostly reef fishes. This ignores a large body of work, both from other marine environments and freshwater systems, but the reef contains examples of many of the challenges to vision from the aquatic environment. It is also a concentrate of life, perhaps the most specious and complex on earth, suffering now catastrophically from the consequences of our lack of action on climate change. A clear course of action to prevent destruction of this habitat is the need to spend more time in it, in the study of it and sharing it with those not fortunate enough to see coral reefs first‐hand. Sir David Attenborough on The Great Barrier Reef: “Do we really care so little about the Earth upon which we live that we don't wish to protect one of its greatest wonders from the consequences of our behaviours?”

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Section: Reef Fishes Colour Visionmentioning

confidence: 99%

Colours and colour vision in reef fishes: Past, present and future research directions

Marshall

Cortesi

Busserolles

et al. 2018

Journal of Fish Biology

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“…In a later set of experiments, foraging by mutant zebrafish that have relatively few UVS cones was compared with that of wild-type fish of similar sizes. Again, diminished UV sensitivity (or resolution) decreased foraging success (Novales Flamarique, 2016). The use of UV for silhouette predation by juvenile fishes is perhaps the bestdocumented case of a specialized predation behavior that relies on UV sensitivity.…”

Section: Foraging and Predator/prey Detectionmentioning

confidence: 99%

Photoreception and vision in the ultraviolet

Cronin

Bok

2016

Journal of Experimental Biology

148

128

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Ultraviolet (UV) light occupies the spectral range of wavelengths slightly shorter than those visible to humans. Because of its shorter wavelength, it is more energetic (and potentially more photodamaging) than 'visible light', and it is scattered more efficiently in air and water. Until 1990, only a few animals were recognized as being sensitive to UV light, but we now know that a great diversity, possibly even the majority, of animal species can visually detect and respond to it. Here, we discuss the history of research on biological UV photosensitivity and review current major research trends in this field. Some animals use their UV photoreceptors to control simple, innate behaviors, but most incorporate their UV receptors into their general sense of vision. They not only detect UV light but recognize it as a separate color in light fields, on natural objects or living organisms, or in signals displayed by conspecifics. UV visual pigments are based on opsins, the same family of proteins that are used to detect light in conventional photoreceptors. Despite some interesting exceptions, most animal species have a single photoreceptor class devoted to the UV. The roles of UV in vision are manifold, from guiding navigation and orientation behavior, to detecting food and potential predators, to supporting high-level tasks such as mate assessment and intraspecific communication. Our current understanding of UV vision is restricted almost entirely to two phyla: arthropods and chordates (specifically, vertebrates), so there is much comparative work to be done.

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“…; Browman et al . ; Novales Flamarique ) as shown by increased expression of the UV‐sensitive opsin (SWS1) in planktivorous cichlids (Hofmann et al . ; O'Quin et al .…”

Section: Introductionmentioning

confidence: 99%

Why UV vision and red vision are important for damselfish (Pomacentridae): structural and expression variation in opsin genes

et al. 2017

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Coral reefs belong to the most diverse ecosystems on our planet. The diversity in coloration and lifestyles of coral reef fishes makes them a particularly promising system to study the role of visual communication and adaptation. Here, we investigated the evolution of visual pigment genes (opsins) in damselfish (Pomacentridae) and examined whether structural and expression variation of opsins can be linked to ecology. Using DNA sequence data of a phylogenetically representative set of 31 damselfish species, we show that all but one visual opsin are evolving under positive selection. In addition, selection on opsin tuning sites, including cases of divergent, parallel, convergent and reversed evolution, has been strong throughout the radiation of damselfish, emphasizing the importance of visual tuning for this group. The highest functional variation in opsin protein sequences was observed in the short- followed by the long-wavelength end of the visual spectrum. Comparative gene expression analyses of a subset of the same species revealed that with SWS1, RH2B and RH2A always being expressed, damselfish use an overall short-wavelength shifted expression profile. Interestingly, not only did all species express SWS1 - a UV-sensitive opsin - and possess UV-transmitting lenses, most species also feature UV-reflective body parts. This suggests that damsels might benefit from a close-range UV-based 'private' communication channel, which is likely to be hidden from 'UV-blind' predators. Finally, we found that LWS expression is highly correlated to feeding strategy in damsels with herbivorous feeders having an increased LWS expression, possibly enhancing the detection of benthic algae.

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Diminished foraging performance of a mutant zebrafish with reduced population of ultraviolet cones

Cited by 50 publications

References 48 publications

Colours and colour vision in reef fishes: Past, present and future research directions

Colours and colour vision in reef fishes: Past, present and future research directions

Photoreception and vision in the ultraviolet

Why UV vision and red vision are important for damselfish (Pomacentridae): structural and expression variation in opsin genes

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