Ocean acidification slows retinal function in a damselfish through interference with GABAA receptors

Chung, Wen-Sung; Marshall, N. Justin; Watson, Sue‐Ann; Munday, Philip L.; Nilsson, Göran

doi:10.1242/jeb.092478

Cited by 115 publications

(105 citation statements)

References 24 publications

(31 reference statements)

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“…Furthermore, although little is known about the visual performance in gastropods, most gastropod species have some capacity for using their eyes to keep on a straight course, and a few have a very basic capacity for pattern recognition and landmark navigation (Land and Nilsson, 2006). The negative effect of elevated P CO2 levels on eyesight through effects on the retinal reaction has been reported in fish (Chung et al, 2014). Thus, it is possible that near-future P CO2 levels might impair the capacity of other marine organisms such as molluscs to respond visually not only to fast events such as predator attacks (Allan et al, 2013), but also to take the most direct route towards a prey without contact with a barrier.…”

Section: Discussionmentioning

confidence: 98%

Effects of elevated carbon dioxide and temperature on locomotion and the repeatability of lateralization in a keystone marine mollusc

Domenici

Torres

Manríquez³

2017

Journal of Experimental Biology

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Recent work has shown that the behaviour of marine organisms can be affected by elevated P CO2 , although little is known about the effect of multiple stressors. We therefore investigated the effect of elevated P CO2 and temperature on locomotion and behaviour during prey searching in the marine gastropod Concholepas concholepas, a predator characteristic of the southeastern Pacific coast. Movement duration, decision time, route finding and lateralization were measured using a T-maze tank with a prey positioned behind a barrier. Four treatments, representing present day and near-future scenarios of ocean acidification and warming were used in rearing the individuals for 6 months. Regardless of the treatment, no significant differences were found in relative and absolute lateralization before and after exposure for 6 months. However, relative lateralization was not repeatable for animals tested after 6 months at elevated P CO2 at both experimental temperatures, whereas it was repeatable in individuals kept at the present day level of P CO2 . We suggest that these effects may be related to a behavioural malfunction caused by elevated P CO2 . Movement duration, decision time and route finding were not repeatable. However, movement duration and decision time increased and route finding decreased in elevated P CO2 (at 15°C), suggesting that elevated P CO2 has negative effects on the locomotor and sensory performance of C. concholepas in the presence of a prey odour, thereby decreasing their ability to forage efficiently.

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Section: Discussionmentioning

confidence: 98%

Effects of elevated carbon dioxide and temperature on locomotion and the repeatability of lateralization in a keystone marine mollusc

Domenici

Torres

Manríquez³

2017

Journal of Experimental Biology

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“…Experiments show that elevated pCO 2 can influence growth (Munday et al 2009a, Baumann et al 2012, condition (Franke & Clemmesen 2011) and mortality (Baumann et al 2012, Chambers et al 2014) of fish eggs and larvae. Altered auditory (Simpson et al 2011), olfactory (Munday et al 2009b, Devine et al 2012) and visual (Forsgren et al 2013, Chung et al 2014) sensory abilities that have resulted in behavioral changes are thought to be the result of modifications to the γ-aminobutyric acid (GABA A ) neurotransmitter receptor in the brain (Nilsson et al 2012, Hamilton et al 2014. Another widespread effect of elevated pCO 2 is the increase in otolith size (OS) (Checkley et al 2009, Bignami et al 2013a, Réveillac et al 2015.…”

Section: Introductionmentioning

confidence: 99%

Otolith size and the vestibulo-ocular reflex of larvae of white seabass Atractoscion nobilis at high pCO2

Shen¹,

Chen²,

Schoppik³

et al. 2016

Mar. Ecol. Prog. Ser.

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We investigated vestibular function and otolith size (OS) in larvae of white seabass Atractoscion nobilis exposed to high partial pressure of CO 2 (pCO 2 ) The context for our study is the increasing concentration of CO 2 in seawater that is causing ocean acidification (OA). The utricular otoliths are aragonitic structures in the inner ear of fish that act to detect orientation and acceleration. Stimulation of the utricular otoliths during head movement results in a behavioral response called the vestibulo-ocular reflex (VOR). The VOR is a compensatory eye rotation that serves to maintain a stable image during movement. VOR is characterized by gain (ratio of eye amplitude to head amplitude) and phase shift (temporal synchrony). We hypothesized that elevated pCO 2 would increase OS and affect the VOR. We found that the sagittae and lapilli of young larvae reared at 2500 µatm pCO 2 (treatment) were 14 to 20% and 37 to 39% larger in area, respectively, than those of larvae reared at 400 µatm pCO 2 (control). The mean gain of treatment larvae (0.39 ± 0.05, n = 28) was not statistically different from that of control larvae (0.30 ± 0.03, n = 20), although there was a tendency for treatment larvae to have a larger gain. Phase shift was unchanged. Our lack of detection of a significant effect of elevated pCO 2 on the VOR may be a result of the low turbulence conditions of the experiments, large natural variation in otolith size, calibration of the VOR or mechanism of acid−base regulation of white seabass larvae.

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“…Thus habitat disturbances, for example, owing to altered water flows, have the potential to alter sensory morphology. There is growing recognition that human-induced environmental change can cause disruption to senses such as olfaction (Munday et al, 2009) and vision (Chung et al, 2014). A future challenge is to determine whether the lateral line system exhibits some level of resilience to habitat disturbance (e.g.…”

Section: Discussionmentioning

confidence: 99%

Functional diversity of the lateral line system among populations of a native Australian freshwater fish

Spiller

Grierson

Davies

et al. 2017

Journal of Experimental Biology

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Fishes use their mechanoreceptive lateral line system to sense nearby objects by detecting slight fluctuations in hydrodynamic motion within their immediate environment. Species of fish from different habitats often display specialisations of the lateral line system, in particular the distribution and abundance of neuromasts, but the lateral line can also exhibit considerable diversity within a species. Here, we provide the first investigation of the lateral line system of the Australian western rainbowfish (Melanotaenia australis), a species that occupies a diversity of freshwater habitats across semi-arid northwest Australia. We collected 155 individuals from eight populations and surveyed each habitat for environmental factors that may contribute to lateral line specialisation, including water flow, predation risk, habitat structure and prey availability. Scanning electron microscopy and fluorescent dye labelling were used to describe the lateral line system in M. australis, and to examine whether the abundance and arrangement of superficial neuromasts (SNs) varied within and among populations. We found that the SNs of M. australis were present in distinct body regions rather than lines. The abundance of SNs within each body region was highly variable, and also differed among populations and individuals. Variation in SN abundance among populations was best explained by habitat structure and the availability of invertebrate prey. Our finding that specific environmental factors explain among-population variation in a key sensory system suggests that the ability to acquire sensory information is specialised for the particular behavioural needs of the animal.

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Ocean acidification slows retinal function in a damselfish through interference with GABAA receptors

Cited by 115 publications

References 24 publications

Effects of elevated carbon dioxide and temperature on locomotion and the repeatability of lateralization in a keystone marine mollusc

Effects of elevated carbon dioxide and temperature on locomotion and the repeatability of lateralization in a keystone marine mollusc

Otolith size and the vestibulo-ocular reflex of larvae of white seabass Atractoscion nobilis at high pCO2

Functional diversity of the lateral line system among populations of a native Australian freshwater fish

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