Effects of water warming and acidification on bioconcentration, metabolization and depuration of pharmaceuticals and endocrine disrupting compounds in marine mussels (Mytilus galloprovincialis)

Environmental Pollution, Journal Year: 2018, Volume and Issue: 236, P. 824 - 834

Published: March 7, 2018

Language: Английский

---

Temperature but not ocean acidification affects energy metabolism and enzyme activities in the blue mussel, Mytilus edulis

Ecology and Evolution, Journal Year: 2021, Volume and Issue: 11(7), P. 3366 - 3379

Published: March 5, 2021

Abstract In mosaic marine habitats, such as intertidal zones, ocean acidification (OA) is exacerbated by high variability of pH, temperature, and biological CO 2 production. The nonlinear interactions among these drivers can be context‐specific their effect on organisms in habitats remains largely unknown, warranting further investigation. We were particularly interested Mytilus edulis (the blue mussel) from zones the Gulf Maine (GOM), USA, for this study. GOM a hot spot global climate change (average sea surface temperature (SST) increasing >0.2°C/year) with >60% decline mussel population over past 40 years. Here, we utilize bioenergetic underpinnings to identify limits stress tolerance M. exposed warming OA. have measured whole‐organism oxygen consumption rates metabolic biomarkers mussels control elevated temperatures (10 vs. 15°C, respectively) current moderately P CO2 levels (~400 800 µatm, respectively). Our study demonstrates that adult are metabolically resilient moderate OA scenario but responsive seen changes rate, energy reserves (total lipids), metabolite profiles (glucose osmolyte dimethyl amine), enzyme activities (carbonic anhydrase calcium ATPase). results agreement recent literature scenarios next 100–300 years do not affect species, possibly consequence maintaining its vivo acid‐base balance.

Language: Английский

---

Warming Affects Bioconcentration and Bioaccumulation of Per- and Polyfluoroalkyl Substances by Pelagic and Benthic Organisms in a Water–Sediment System

Environmental Science & Technology, Journal Year: 2023, Volume and Issue: 57(9), P. 3612 - 3622

Published: Feb. 21, 2023

Warming and exposure to emerging global pollutants, such as per- polyfluoroalkyl substances (PFAS), are significant stressors in the aquatic ecosystem. However, little is known about warming effect on bioaccumulation of PFAS organisms. In this study, pelagic organisms Daphnia magna zebrafish, benthic organism Chironomus plumosus were exposed 13 a sediment–water system with amount each at different temperatures (16, 20, 24 °C). The results showed that steady-state body burden (Cb-ss) increased increasing temperatures, mainly attributed water concentrations. uptake rate constant (ku) elimination (ke) temperature. contrast, did not significantly change or even mitigate Cb-ss plumosus, except for PFPeA PFHpA, which was consistent declined sediment mitigation could be explained by decreased factor due more percent increase ke than ku, especially long-chain PFAS. This study suggests concentration varies among media, should considered their ecological risk assessment under climate change.

Language: Английский

---

Triploid Pacific oysters exhibit stress response dysregulation and elevated mortality following heatwaves

Global Change Biology, Journal Year: 2023, Volume and Issue: 29(24), P. 6969 - 6987

Published: July 18, 2023

Polyploidy has been suggested to negatively impact environmental stress tolerance, resulting in increased susceptibility extreme climate events. In this study, we compared the genomic and physiological response of diploid (2n) triploid (3n) Pacific oysters (Crassostrea gigas) conditions present during an atmospheric heatwave that impacted Northwestern region United States summer 2021. Climate stressors were applied either singly (single stressor; elevated seawater temperature, 30°C) or succession (multiple temperature followed by aerial emersion at 44°C), replicating within intertidal over a tidal cycle event. Oyster mortality rate was treatments with respect control significantly higher triploids than diploids following multiple exposure (36.4% vs. 14.8%). Triploids stressor treatment exhibited signs energetic limitation, including metabolic depression, significant reduction ctenidium Na+ /K+ ATPase activity, dysregulated expression genes associated response, innate immunity, glucose metabolism, mitochondrial function. Functional enrichment analysis ploidy-specific gene sets identified biological processes immune function overrepresented across treatments. Our results suggest triploidy impacts transcriptional regulation key underly oysters, downstream shifts tolerance limits may increase events stressors. The chromosome set manipulation on resilience marine organisms important implications for domestic food security future scenarios, especially as induction becomes increasingly popular tool elicit reproductive wide range species used aquaculture.

Language: Английский

---

Intertidal oysters reach their physiological limit in a future high-CO2 world

Journal of Experimental Biology, Journal Year: 2017, Volume and Issue: 220(5), P. 765 - 774

Published: March 1, 2017

Sessile marine molluscs living in the intertidal zone experience periods of internal acidosis when exposed to air (emersion) during low tide. Relative other organisms, have been identified as vulnerable future ocean acidification; however, paradoxically it has also shown that high CO2 environments are more resilient compared with those naive exposure. Two competing hypotheses were tested using a novel experimental design incorporating tidal simulations predict limit oysters high-CO2 world; either high-shore will be tolerant elevated PCO2 because their regular acidosis, or cause reach limit. Sydney rock oysters, Saccostrea glomerata, collected from high-intertidal and subtidal areas shore an orthogonal treatment at ambient , physiological variables measured. The combined emersion interacted synergistically reduce haemolymph pH (pHe) increase (Pe,CO2 ) standard metabolic rate. Oysters had lower condition growth. showed degree plasticity, little evidence was found than oysters. It is concluded world upper vertical oyster distribution on may reduced. These results suggest previous studies organisms lacked underestimated effects PCO2.

Language: Английский

---

Random forest assessment of correlation between environmental factors and genetic differentiation of populations: Case of marine mussels Mytilus

Oceanologia, Journal Year: 2018, Volume and Issue: 61(1), P. 131 - 142

Published: Aug. 30, 2018

The novel machine learning technique Random Forest (RF) was used to test if the genetic differentiation of populations marine species may be related any key environmental variables known shape distributions. study performed in North and Baltic Sea characterized by strong gradients factors almost continuous distributions Mytilus mussel populations. Assessment identity using four nuclear DNA markers, previously published single nucleotide polymorphism (SNP) data. A general pattern cline variation observed with increasing trossulus share towards eastern Sea. Average allele rose 61% Höga Kusten, Gulf Bothnia. All samples revealed a introgression edulis limited M. through Danish Straits. studied described 67 68% variability frequencies trossulus. Salinity defined over 50% gene spp. Changes along this gradient were not gradual but instead significant shift from dominance found at salinity 12 PSU. Water temperature trophic status sea area had only moderate association frequencies. obtained results showed that can successfully for finding correlations between defining functional form these linkages.

Language: Английский

---

Aerial exposure and critical temperatures limit the survival of restored intertidal mussels

Restoration Ecology, Journal Year: 2024, Volume and Issue: 32(4)

Published: Jan. 14, 2024

Site selection is one of the biggest challenges affecting coastal restoration success, and can be particularly difficult in intertidal zone, where species are often living close to their physiological thermal limits. Climate change causing atmospheric marine heat waves, with summer 2023 having highest ever recorded global average temperatures. This changing climate, along other stressors, increases difficulty for managers choose locations zone. In this study, green‐lipped mussels ( Perna canaliculus ) were transplanted into zone a series 12 plots (9 m 2 examine situ influence temperature on mussel survival over 6‐month period. The deployed at varying heights differing periods aerial exposure temperature. Six months post‐deployment had highly variable range 0–95%. Results showed that temperature, specifically hours exceeding 25°C, negative relationship survival, reducing reduces number exposed temperatures above 25°C months. study demonstrates utility deploying loggers by practitioners prior trials determine localized variances may aid site warming world, our findings illustrate importance understanding potentially critical fine‐scale interplay between time shellfish restoration.

Language: Английский

---

Exploring the mechanisms behind swimming performance limits to ocean warming and acidification in the Atlantic king scallop, Pecten maximus

Frontiers in Ecology and Evolution, Journal Year: 2024, Volume and Issue: 12

Published: April 9, 2024

Recently, we could show that scallops limitations of muscular performance like a reduced force under ocean warming and acidification. However, the underlying mechanisms at cellular level are not completely understood. Metabolomics has become valuable tool to evaluate responses marine organisms various stressors. In present study therefore used semi-targeted, multi tissue NMR based metabolomic approach analyze metabolite patterns in Atlantic king scallop, Pecten maximus , were long-term acclimated different end century conditions (OW), acidification (OA) their combination (OWA). We investigated specific metabolic profiles concentrations frozen tissues from gills, mantle phasic tonic adductor muscle P. using 1 H-HR-MAS spectroscopy. A set 33 metabolites revealed clear tissue-specific pattern which can be attributed individual functions respective type. then evaluated impact OW, OA OWA on tissues. OW was main driver changes metabolites. particular, energy-related seem play an important role physiological response OWA. with pathway analysis network exploration propose possible correlation between limited swimming future climate. While seems mainly depend net consumption energy related such as ATP phospho-L-arginine, rely metabolizing amino acids beta-oxidation account for elevated energetic requirements

Language: Английский

---

Delayed onset of ocean acidification in the Gulf of Maine

Scientific Reports, Journal Year: 2025, Volume and Issue: 15(1)

Published: Jan. 15, 2025

Abstract The Gulf of Maine holds significant ecological and economic value for fisheries communities in north-eastern North America. However, there is apprehension regarding its vulnerability to the effects increasing atmospheric CO 2 . Substantial recent warming inflow low alkalinity waters into have raised concerns about impact ocean acidification on resident marine calcifiers (e.g. oysters, clams, mussels). With limited seawater pH records, natural variability drivers this region remain unclear. To address this, we present coastal water proxy records using boron isotope (δ 11 B) measurements long-lived, annually banded, crustose coralline algae (1920–2018 CE). These indicate was (~ 7.9) much last century. Contrary expectation, also find that has increased (+ 0.2 units) over past 40 years, despite concurrent rising This increase attributed an input high derived from Stream. delayed onset cause concern. Once circulation-driven buffering reach their limit, decline may occur swiftly. would profoundly harm shellfisheries broader ecosystem.

Language: Английский

---

Tolerance of the Blue Mussel Mytilus Edulis Collected in the Tidal Zone to Low Ph Reaches its Limit Under Chronic Exposure to Extreme Low Ph

Published: Jan. 1, 2025

Language: Английский

---