Hypoxic episode during the larval period has long-term effects on European sea bass juveniles (Dicentrarchus labrax)

Vanderplancke, Gwenaëlle; Claireaux, Guy; Quazuguel, Patrick; Madec, Lauriane; Ferraresso, Serena; Sévère, Armelle; Zambonino-Infante, José‐Luis; Mazurais, David

doi:10.1007/s00227-014-2601-9

Cited by 41 publications

(42 citation statements)

References 48 publications

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“…This study was conducted to elucidate one intriguing result reported in Vanderplancke et al (2015b), where fish had different life history traits following early environmental conditioning. Fish that had experienced moderate hypoxia during a short period of their larval life showed a growth depression at the juvenile stage that was not observed in the control group (Vanderplancke et al, 2015b).…”

Section: Discussionmentioning

confidence: 99%

“…European sea bass, Dicentrarchus labrax (Linnaeus 1758), used in this study were from the same experimental population as used in a previous experiment (Vanderplancke et al, 2015b). Sea bass juveniles were randomly taken at day 450 dph (nearly 15 months old) in the control group (n=24) and in the early life hypoxia treatment (ELHT) group (n=23 fish after the accidental death of one individual).…”

Section: Materials and Methods Animals And Dietsmentioning

confidence: 99%

“…Only recently have studies begun to address the effects of warming and reduction in dissolved oxygen on marine fish development and growth (Daufresne et al, 2009;Vanderplancke et al, 2015b), revealing a significant reduction of fish body size (Sheridan and Bickford, 2011).…”

Section: Introductionmentioning

confidence: 99%

“…Hypoxia events often occur in late spring, early summer and autumn, which correspond to periods of recruitment and fast growth in several fish species (Breitburg, 2009;Pihl et al, 1992). As demonstrated in a number of studies, early stages of marine fish life are particularly affected by hypoxia episodes, depending on hypoxia severity, duration and individual adaptive capacities (Anjos et al, 2008;Bickler and Buck, 2007;Vanderplancke et al, 2015b). Understanding the long-term impact of a low-oxygen environment at early life stages is therefore crucial to forecast possible effects on juvenile recruitment, which determine fish population structure and dynamics (van der Veer, 2000).…”

Section: Introductionmentioning

confidence: 99%

“…Vanderplancke et al (2015b) reported that early life hypoxia had a negative impact on juvenile growth rate. Their study revealed that such reduced growth was associated with a long-lasting downregulation of some metabolic pathways, particularly at the hepatic level, even though food intake remained unchanged.…”

Section: Introductionmentioning

confidence: 99%

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An early-life hypoxia event has a long-term impact on protein digestion and growth in European sea bass juvenile

Zambonino-Infante

Mazurais

Servili

et al. 2017

Journal of Experimental Biology

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Ocean warming, eutrophication and the consequent decrease in oxygen lead to smaller average fish size. Although such responses are well known in an evolutionary context, involving multiple generations, this appears to be incompatible with current rapid environmental change. Instead, phenotypic plasticity could provide a means for marine fish to cope with rapid environmental changes. However, little is known about the mechanisms underlying plastic responses to environmental conditions that favour small phenotypes. Our aim was to investigate how and why European sea bass that had experienced a short episode of moderate hypoxia during their larval stage subsequently exhibited a growth depression at the juvenile stage compared with the control group. We examined whether energy was used to cover higher costs for maintenance, digestion or activity metabolisms, as a result of differing metabolic rate. The lower growth was not a consequence of lower food intake. We measured several respirometry parameters and we only found a higher specific dynamic action (SDA) duration and lower SDA amplitude in a fish phenotype with lower growth; this phenotype was also associated with a lower protein digestive capacity in the intestine. Our results contribute to the understanding of the observed decrease in growth in response to climate change. They demonstrate that the reduced growth of juvenile fishes as a consequence of an early life hypoxia event was not due to a change of fish aerobic scope but to a specific change in the efficiency of protein digestive functions. The question remains of whether this effect is epigenetic and could be reversible in the offspring.

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Section: Discussionmentioning

confidence: 99%

Section: Materials and Methods Animals And Dietsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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An early-life hypoxia event has a long-term impact on protein digestion and growth in European sea bass juvenile

Zambonino-Infante

Mazurais

Servili

et al. 2017

Journal of Experimental Biology

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Assessing the long‐term effect of exposure to dispersant‐treated oil on fish health using hypoxia tolerance and temperature susceptibility as ecologically relevant biomarkers

Mauduit

Farrell²,

Domenici³

et al. 2018

Enviro Toxic and Chemistry

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The ecological and economic importance of fish act as a brake on the development of chemical dispersants as operational instruments following oil spills. Although a valuable and consistent body of knowledge exists, its use in spill response is limited. The objective of the present study was to increase current knowledge base to facilitate the translation of published data into information of operational value. Thus we investigated the dose-response relationship between dispersant-treated oil exposure and ecologically relevant consequences by combining laboratory and field experiments. Effects were examined over almost a year using juveniles of the slowly growing, commercially important European sea bass (Dicentrarchus labrax). A reliable interpretation of biomarker responses requires a complete knowledge of the factors likely to affect them. Interpopulational variability is of particular importance in environmental impact assessment because biomarker responses from a population collected in an impacted area are classically compared with those collected in a clean site. Our study revealed no effect of the exposure to dispersant-treated oil on fish hypoxia tolerance and temperature susceptibility at 1 and 11 mo post exposure. Similarly, no effect of the exposure was observed on the ability of the fish to cope with environmental contingencies in the field, regardless of the dose tested. Thus we feel confident to suggest that a 48-h exposure to chemically treated oil does not affect the ability of sea bass to cope with mild environmental contingencies. Finally, investigation of interpopulation variability revealed large differences in both hypoxia tolerance and temperature susceptibility among the 2 populations tested, suggesting that this variability may blur the interpretation of population comparisons as classically practiced in impact assessment. Environ Toxicol Chem 2018;9999:1-12. © 2018 SETAC.

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The development of contemporary European sea bass larvae (Dicentrarchus labrax) is not affected by projected ocean acidification scenarios

et al. 2017

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Ocean acidification is a recognized consequence of anthropogenic carbon dioxide (CO2) emission in the atmosphere. Despite its threat to marine ecosystems, little is presently known about the capacity for fish to respond efficiently to this acidification. In adult fish, acid–base regulatory capacities are believed to be relatively competent to respond to hypercapnic conditions. However, fish in early life stage could be particularly sensitive to environmental factors as organs and important physiological functions become progressively operational during this period. In this study, the response of European sea bass (Dicentrarchus labrax) larvae reared under three ocean acidification scenarios, i.e., control (present condition, = 590 µatm, pH total = 7.9), low acidification (intermediate IPCC scenario, = 980 µatm, pH total = 7.7), and high acidification (most severe IPCC scenario, = 1520 µatm, pH total = 7.5) were compared across multiple levels of biological organizations. From 2 to 45 days-post-hatching, the chronic exposure to the different scenarios had limited influence on the survival and growth of the larvae (in the low acidification condition only) and had no apparent effect on the digestive developmental processes. The high acidification condition induced both faster mineralization and reduction in skeletal deformities. Global (microarray) and targeted (qPCR) analysis of transcript levels in whole larvae did not reveal any significant changes in gene expression across tested acidification conditions. Overall, this study suggests that contemporary sea bass larvae are already capable of coping with projected acidification conditions without having to mobilize specific defense mechanisms.Electronic supplementary materialThe online version of this article (doi:10.1007/s00227-017-3178-x) contains supplementary material, which is available to authorized users.

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Hypoxic episode during the larval period has long-term effects on European sea bass juveniles (Dicentrarchus labrax)

Cited by 41 publications

References 48 publications

An early-life hypoxia event has a long-term impact on protein digestion and growth in European sea bass juvenile

An early-life hypoxia event has a long-term impact on protein digestion and growth in European sea bass juvenile

Assessing the long‐term effect of exposure to dispersant‐treated oil on fish health using hypoxia tolerance and temperature susceptibility as ecologically relevant biomarkers

The development of contemporary European sea bass larvae (Dicentrarchus labrax) is not affected by projected ocean acidification scenarios

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