Bacteriostatic suppression in Norway lobster (Nephrops norvegicus) exposed to manganese or hypoxia under pressure of ocean acidification

Hernroth, Bodil; Krång, Anna-Sara; Baden, Susanne

doi:10.1016/j.aquatox.2014.11.025

Cited by 27 publications

(10 citation statements)

References 62 publications

(69 reference statements)

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“…In contrast to zooplankton, benthic animals in the Baltic-Skagerrak System generally respond either negatively or neutrally to OA (to date there is one report of a positive response; seastar, Skagerrak, Dupont et al 2010 ). Negative responses include reduced embryonic and larval survival (brittle stars, Skagerrak, Dupont et al 2008 ; bivalves, Baltic, Jansson et al 2016 ; Skagerrak, Ventura et al 2016 ; van Colen et al 2018 ), delayed larval development (sea urchins, Skagerrak, Stumpp et al 2011a ), and immune suppression (crustaceans, Skagerrak, Wood et al 2014 ; Hernroth et al 2015 ; see Table 1 for full list). Reports of no, or minor, responses to OA include effects on fertilisation success (bivalves, Skagerrak, Havenhand and Schlegel 2009 ), adult growth (bivalves, Baltic, Thomsen and Melzner 2010 ), larval development (crustaceans, Skagerrak, Baltic, Pansch et al 2012 , 2013 ), and metabolic scaling (echinoderms, Skagerrak, Carey et al 2014 ; see Table 1 for full list).…”

Section: Direct Effects Of Ocean Acidificationmentioning

confidence: 99%

Ecological and functional consequences of coastal ocean acidification: Perspectives from the Baltic-Skagerrak System

Havenhand

Filipsson

Niiranen

et al. 2018

Ambio

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Ocean temperatures are rising; species are shifting poleward, and pH is falling (ocean acidification, OA). We summarise current understanding of OA in the brackish Baltic-Skagerrak System, focussing on the direct, indirect and interactive effects of OA with other anthropogenic drivers on marine biogeochemistry, organisms and ecosystems. Substantial recent advances reveal a pattern of stronger responses (positive or negative) of species than ecosystems, more positive responses at lower trophic levels and strong indirect interactions in food-webs. Common emergent themes were as follows: OA drives planktonic systems toward the microbial loop, reducing energy transfer to zooplankton and fish; and nutrient/food availability ameliorates negative impacts of OA. We identify several key areas for further research, notably the need for OA-relevant biogeochemical and ecosystem models, and understanding the ecological and evolutionary capacity of Baltic-Skagerrak ecosystems to respond to OA and other anthropogenic drivers.

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Section: Direct Effects Of Ocean Acidificationmentioning

confidence: 99%

Ecological and functional consequences of coastal ocean acidification: Perspectives from the Baltic-Skagerrak System

Havenhand

Filipsson

Niiranen

et al. 2018

Ambio

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“…Taken together, these data suggest that hypoxia can have a negative effect on the immune system of brown mussels, decreasing the availability of circulating viable hemocytes and causing modulation of their immune responses. Such conditions may have serious effects on their susceptibility to pathogens infections, as already suggested with crabs (Holman et al, 2004) and lobsters (Henroth et al, 2015) with impaired pathogen clearance due to continuous hypoxic conditions.…”

Section: Timementioning

confidence: 89%

Hypoxia effects on oxidative stress and immunocompetence biomarkers in the mussel Perna perna (Mytilidae, Bivalvia)

Nogueira

Mello

Trevisan

et al. 2017

Marine Environmental Research

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This study investigated the effects of hypoxia on oxidative stress response and immune function in mussels Perna perna exposed to air for 6, 12, 24 and 48 h. In air-exposed mussels, the antioxidant enzymes superoxide dismutase (SOD), catalase, and glutathione reductase (GR) activities were lower in gill tissues (24-48 h) and digestive gland (12 h), while the glutathione peroxidase and GR activities were increased in the digestive gland (48 h). In both tissues, aerial exposure promoted a rapid (6 h) and persistent (up to 48 h) increase of glutathione levels. Decreased hemocyte count and viability, as well as increased phagocytic activity and cellular adhesion capacity were detected after prolonged aerial exposure (>12 h). In summary, induction of thiol pools, altered antioxidant enzyme activities, and activation of immune responses were detected in hypoxia exposed brown mussels, indicating hypoxia induced tissue-specific responses in both antioxidant and immune systems.

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“…A limited number of studies published to date have focused on the response to combined seawater hypoxia and acidification (Melzner et al, 2013; Gobler et al, 2014; Hernroth et al, 2015; Jakubowska and Normant, 2015; Sui et al, 2015). However, it is essential to understand the impacts of multiple stressors because these environmental changes do not change in isolation and their effects can be additive, synergistic or antagonistic (Breitburg et al, 2015).…”

Section: Introductionmentioning

confidence: 99%

Defense Responses to Short-term Hypoxia and Seawater Acidification in the Thick Shell Mussel Mytilus coruscus

et al. 2017

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The rising anthropogenic atmospheric CO2 results in the reduction of seawater pH, namely ocean acidification (OA). In East China Sea, the largest coastal hypoxic zone was observed in the world. This region is also strongly impacted by ocean acidification as receiving much nutrient from Changjiang and Qiantangjiang, and organisms can experience great short-term natural variability of DO and pH in this area. In order to evaluate the defense responses of marine mussels under this scenario, the thick shell mussel Mytilus coruscus were exposed to three pH/pCO2 levels (7.3/2800 μatm, 7.7/1020 μatm, 8.1/376 μatm) at two dissolved oxygen concentrations (DO, 2.0, 6.0 mg L−1) for 72 h. Results showed that byssus thread parameters, such as the number, diameter, attachment strength and plaque area were reduced by low DO, and shell-closing strength was significantly weaker under both hypoxia and low pH conditions. Expression patterns of genes related to mussel byssus protein (MBP) were affected by hypoxia. Generally, hypoxia reduced MBP1 and MBP7 expressions, but increased MBP13 expression. In conclusion, both hypoxia and low pH induced negative effects on mussel defense responses, with hypoxia being the main driver of change. In addition, significant interactive effects between pH and DO were observed on shell-closing strength. Therefore, the adverse effects induced by hypoxia on the defense of mussels may be aggravated by low pH in the natural environments.

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Bacteriostatic suppression in Norway lobster (Nephrops norvegicus) exposed to manganese or hypoxia under pressure of ocean acidification

Cited by 27 publications

References 62 publications

Ecological and functional consequences of coastal ocean acidification: Perspectives from the Baltic-Skagerrak System

Ecological and functional consequences of coastal ocean acidification: Perspectives from the Baltic-Skagerrak System

Hypoxia effects on oxidative stress and immunocompetence biomarkers in the mussel Perna perna (Mytilidae, Bivalvia)

Defense Responses to Short-term Hypoxia and Seawater Acidification in the Thick Shell Mussel Mytilus coruscus

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