CO2-driven seawater acidification differentially affects development and molecular plasticity along life history of fish (Oryzias latipes)

Tseng, Yung‐Che; Hu, Marian Yong-An; Stumpp, Meike; Lin, Li‐Yih; Melzner, Frank; Hwang, Pung‐Pung

doi:10.1016/j.cbpa.2013.02.005

Cited by 72 publications

(91 citation statements)

References 80 publications

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“…The respiratory physiology of fishes does facilitate excretion of CO 2 from the countercurrent exchange from water to blood and unidirectional water flow across the gills to maintain stable blood pH (Heuer and Grosell, 2014). However, more common mechanisms for acid-base balance in fish include the secretion of H + and the retention and absorption of HCO 3 − through different ion exchanges and de novo synthesis of HCO 3 − by the kidney (Wright, 1995;Wood et al, 1999;Lawrence et al, 2015), facilitated by carbonic anhydrase Perry et al, 2010;Esbaugh et al, 2012;Tseng et al, 2013). Future studies could quantify plasma HCO 3…”

Section: Discussionmentioning

confidence: 99%

Juvenile Antarctic rockcod,Trematomus bernacchii, are physiologically robust to CO2–acidified seawater

Davis

Miller

Flynn

et al. 2016

Journal of Experimental Biology

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To date, numerous studies have shown negative impacts of CO 2 -acidified seawater (i.e. ocean acidification, OA) on marine organisms, including calcifying invertebrates and fishes; however, limited research has been conducted on the physiological effects of OA on polar fishes and even less on the impact of OA on early developmental stages of polar fishes. We evaluated aspects of aerobic metabolism and cardiorespiratory physiology of juvenile emerald rockcod, Trematomus bernacchii, an abundant fish in the Ross Sea, Antarctica, to elevated partial pressure of carbon dioxide (P CO2 ) [420 (ambient), 650 (moderate) and 1050 (high) μatm P CO2 ] over a 1 month period. We examined cardiorespiratory physiology, including heart rate, stroke volume, cardiac output and ventilation rate, whole organism metabolism via oxygen consumption rate and sub-organismal aerobic capacity by citrate synthase enzyme activity. Juvenile fish showed an increase in ventilation rate under high P CO2 compared with ambient P CO2 , whereas cardiac performance, oxygen consumption and citrate synthase activity were not significantly affected by elevated P CO2 . Acclimation time had a significant effect on ventilation rate, stroke volume, cardiac output and citrate synthase activity, such that all metrics increased over the 4 week exposure period. These results suggest that juvenile emerald rockcod are robust to near-future increases in OA and may have the capacity to adjust for future increases in P CO2 by increasing acid-base compensation through increased ventilation.

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Section: Discussionmentioning

confidence: 99%

Juvenile Antarctic rockcod,Trematomus bernacchii, are physiologically robust to CO2–acidified seawater

Davis

Miller

Flynn

et al. 2016

Journal of Experimental Biology

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“…A few studies have reported downregulation of VHA mRNA in gills from fish exposed to OA (e.g. Esbaugh et al, 2012;Tseng et al, 2013), which, as pointed out in a recent review (Heuer and Grosell, 2014), was most likely due to downregulation of branchial HCO 3 − secretion to seawater and H + reabsorption into the blood.…”

Section: A/b Regulationmentioning

confidence: 93%

“…Deigweiher et al, 2010;Harms et al, 2014;Hu et al, 2011;Kaniewska et al, 2012;Tseng et al, 2013 . A few studies have reported downregulation of VHA mRNA in gills from fish exposed to OA (e.g.…”

Section: A/b Regulationmentioning

confidence: 99%

Novel and potential physiological roles of vacuolar-type H+-ATPase in marine organisms

Tresguerres

2016

Journal of Experimental Biology

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The vacuolar-type H + -ATPase (VHA) is a multi-subunit enzyme that uses the energy from ATP hydrolysis to transport H + across biological membranes. VHA plays a universal role in essential cellular functions, such as the acidification of lysosomes and endosomes. In addition, the VHA-generated H + -motive force can drive the transport of diverse molecules across cell membranes and epithelia for specialized physiological functions. Here, I discuss diverse physiological functions of VHA in marine animals, focusing on recent discoveries about base secretion in shark gills, potential bone dissolution by Osedax boneeating worms and its participation in a carbon-concentrating mechanism that promotes coral photosynthesis. Because VHA is evolutionarily conserved among eukaryotes, it is likely to play many other essential physiological roles in diverse marine organisms. Elucidating and characterizing basic VHA-dependent mechanisms could help to determine species responses to environmental stress, including (but not limited to) that resulting from climate change.

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“…Such transcriptomic plasticity has been detected in fish larvae as well. Zebrafish Danio rerio embryos increased the quantity and size of epidermal H + -ATPase-rich cells when exposed to low pH water (Horng et al 2009), while larvae of Japanese ricefish (medaka, Oryzias latipes) could up-regulate several acid-base relevant genes when exposed to hypercapnia (Tseng et al 2013). Epigenetic inheritance of a specific transcriptomic configuration (e.g.…”

Section: Discussionmentioning

confidence: 99%

Offspring sensitivity to ocean acidification changes seasonally in a coastal marine fish

Murray¹,

Malvezzi²,

Gobler³

et al. 2014

Mar. Ecol. Prog. Ser.

118

104

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CO2-driven seawater acidification differentially affects development and molecular plasticity along life history of fish (Oryzias latipes)

Cited by 72 publications

References 80 publications

Juvenile Antarctic rockcod,Trematomus bernacchii, are physiologically robust to CO2–acidified seawater

Juvenile Antarctic rockcod,Trematomus bernacchii, are physiologically robust to CO2–acidified seawater

Novel and potential physiological roles of vacuolar-type H+-ATPase in marine organisms

Offspring sensitivity to ocean acidification changes seasonally in a coastal marine fish

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