Marine pollution bulletin最新文献_第2页

Effects of copper and cadmium, isolated and combined, in the survival and behavior of Eurytemora affinis (Copepoda).

IF 5.3 3区环境科学与生态学 Q1 ENVIRONMENTAL SCIENCES

Marine pollution bulletin

Pub Date : 2025-03-17 DOI: 10.1016/j.marpolbul.2025.117829

Giseli Swerts Rocha, Caroline Arcanjo, Laís Fernanda de Palma Lopes, Romain Coulaud, Aurélie Duflot, Nathalie Giusti-Petrucciani, J Forget-Leray, Céline Boulangé-Lecomte

The excess of metals released in the environment is of significant concern, and assessing metallic mixtures can be tricky. Copepods are an important link between the producers and higher trophic levels, and their use in ecotoxicology is still scarce compared to other organisms from zooplankton. We evaluated the effects of copper (Cu) and cadmium (Cd), isolated and combined, on nauplii and adults of euryhaline Calanoida copepod Eurytemora affinis from the Seine estuary. The effects of the mixtures were modeled with MixTox, using mortality as endpoint, and the behavior of the adults was evaluated using DanioVision. The nauplii were more sensitive to the metals than adults, especially when exposed to Cd. Regarding the mixtures, the best model to explain the interactions in both stages was the independent action, with synergism in nauplii and antagonism in adults. Synergism was observed in all metallic mixtures to nauplii, increasing with the increase of metals while antagonism was observed in all combinations in adults but with no clear pattern of response related to the metal concentration. Our data suggest that Cd contributed to Cu toxicity in nauplii, but this was not observed in adults. Overall, the copepod's velocity was not significantly affected by the contaminants at the concentrations evaluated. Our data underline the importance of considering (i) the effect of metallic mixtures (ii) in different stages of copepods.

{"title":"Effects of copper and cadmium, isolated and combined, in the survival and behavior of Eurytemora affinis (Copepoda).","authors":"Giseli Swerts Rocha, Caroline Arcanjo, Laís Fernanda de Palma Lopes, Romain Coulaud, Aurélie Duflot, Nathalie Giusti-Petrucciani, J Forget-Leray, Céline Boulangé-Lecomte","doi":"10.1016/j.marpolbul.2025.117829","DOIUrl":"https://doi.org/10.1016/j.marpolbul.2025.117829","url":null,"abstract":"<p><p>The excess of metals released in the environment is of significant concern, and assessing metallic mixtures can be tricky. Copepods are an important link between the producers and higher trophic levels, and their use in ecotoxicology is still scarce compared to other organisms from zooplankton. We evaluated the effects of copper (Cu) and cadmium (Cd), isolated and combined, on nauplii and adults of euryhaline Calanoida copepod Eurytemora affinis from the Seine estuary. The effects of the mixtures were modeled with MixTox, using mortality as endpoint, and the behavior of the adults was evaluated using DanioVision. The nauplii were more sensitive to the metals than adults, especially when exposed to Cd. Regarding the mixtures, the best model to explain the interactions in both stages was the independent action, with synergism in nauplii and antagonism in adults. Synergism was observed in all metallic mixtures to nauplii, increasing with the increase of metals while antagonism was observed in all combinations in adults but with no clear pattern of response related to the metal concentration. Our data suggest that Cd contributed to Cu toxicity in nauplii, but this was not observed in adults. Overall, the copepod's velocity was not significantly affected by the contaminants at the concentrations evaluated. Our data underline the importance of considering (i) the effect of metallic mixtures (ii) in different stages of copepods.</p>","PeriodicalId":18215,"journal":{"name":"Marine pollution bulletin","volume":"214 ","pages":"117829"},"PeriodicalIF":5.3,"publicationDate":"2025-03-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143657667","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Impact of mangrove restoration on microplastic bioaccumulation in fiddler crabs across degraded, restored, and natural ecosystems

IF 5.3 3区环境科学与生态学 Q1 ENVIRONMENTAL SCIENCES

Marine pollution bulletin

Pub Date : 2025-03-17 DOI: 10.1016/j.marpolbul.2025.117815

Mariana V. Capparelli , Dulce J. Gámez-Herrera , Rosela Pérez-Ceballos , Nancy Yolimar Suárez-Mozo , Shirley V.D. Fonseca-Peña , Merle M. Borges-Ramírez , Jaime Rendón-von Osten , Arturo Zaldívar-Jiménez , Gabriel M. Moulatlet

Understanding the role of mangroves in microplastic (MPs) bioaccumulation is crucial to addressing the pollution in these ecosystems, particularly in restored areas. Here, we 1) evaluate the MPs plastic-biota-sediment accumulation factor (pBSAf) in the fiddler crab Minuca rapax and 2) describe MPs type, colour, and polymeric characteristics in areas with varying restoration and degradation levels in the Southern Gulf of Mexico. We used regression models to evaluate the role of mangrove tree height, basal area, and crab individuals' density in explaining pBSAf. The highest pBSAf values were observed in natural and restored mangrove areas, particularly those with higher crab densities and taller trees. MPs were more diverse in composition in both crabs and sediments from natural areas. Mangrove biota tissue's bioaccumulation may provide insights into ecosystem health and food web impacts and indicate restoration progress.

{"title":"Impact of mangrove restoration on microplastic bioaccumulation in fiddler crabs across degraded, restored, and natural ecosystems","authors":"Mariana V. Capparelli , Dulce J. Gámez-Herrera , Rosela Pérez-Ceballos , Nancy Yolimar Suárez-Mozo , Shirley V.D. Fonseca-Peña , Merle M. Borges-Ramírez , Jaime Rendón-von Osten , Arturo Zaldívar-Jiménez , Gabriel M. Moulatlet","doi":"10.1016/j.marpolbul.2025.117815","DOIUrl":"10.1016/j.marpolbul.2025.117815","url":null,"abstract":"<div><div>Understanding the role of mangroves in microplastic (MPs) bioaccumulation is crucial to addressing the pollution in these ecosystems, particularly in restored areas. Here, we 1) evaluate the MPs plastic-biota-sediment accumulation factor (pBSAf) in the fiddler crab <em>Minuca rapax</em> and 2) describe MPs type, colour, and polymeric characteristics in areas with varying restoration and degradation levels in the Southern Gulf of Mexico. We used regression models to evaluate the role of mangrove tree height, basal area, and crab individuals' density in explaining pBSAf. The highest pBSAf values were observed in natural and restored mangrove areas, particularly those with higher crab densities and taller trees. MPs were more diverse in composition in both crabs and sediments from natural areas. Mangrove biota tissue's bioaccumulation may provide insights into ecosystem health and food web impacts and indicate restoration progress.</div></div>","PeriodicalId":18215,"journal":{"name":"Marine pollution bulletin","volume":"214 ","pages":"Article 117815"},"PeriodicalIF":5.3,"publicationDate":"2025-03-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143631951","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Water quality for bivalve molluscs and consumer safety: Application of novel and adapted multimetric indices in a coastal lagoon system exposed to wastewater discharges

IF 5.3 3区环境科学与生态学 Q1 ENVIRONMENTAL SCIENCES

Marine pollution bulletin

Pub Date : 2025-03-17 DOI: 10.1016/j.marpolbul.2025.117814

Alexandra Cravo , Ana B. Barbosa , Maria João Lima, Cristina Ferreira, Cátia Correia, André Matos, José Jacob, Sandra Caetano

Water quality degradation associated with wastewater discharges compromises the production of marine living resources. Water quality indices (WQIs) are relevant tools for water quality management, but most applications are limited to the suitability of freshwater for drinking. In this study, a novel WQI was developed to assess the effects of urban wastewater treatment plant (WWTP) discharges on the water quality in Ria Formosa coastal lagoon, targeting the condition of bivalve molluscs and consumer food safety (WQIB). The application of WQIB was compared with an adapted version of the Canadian Council of Ministers of the Environment Water Quality Index, using similar parameters (CCME-WQI_B). WQIB and CCME-WQI_B were applied to four areas next to WWTPs, over a 2-year period. WQIB integrated seven sub-indices (salinity, unionized ammonia, dissolved oxygen, suspended solids, chlorophyll-a, Escherichia coli and toxigenic phytoplankton), using a weighted additive aggregation function. Water quality ranged from very poor to very good and generally improved with distance from the effluent discharge points, and during the cold period. Highest influence of WWTP discharges was detected in areas under weak hydrodynamics. In areas under strong hydrodynamics, poor water quality was caused by the advection of toxigenic phytoplankton from adjacent coastal waters during the warm period. Although correlated, the use of WQIB should be preferred over CCME-WQI_B due its greater sensitivity, use of weighted parameters and application at the sampling event scale. Our novel index extends the limited number of WQIs applied to marine systems and can be adapted to other systems and water use purposes.

{"title":"Water quality for bivalve molluscs and consumer safety: Application of novel and adapted multimetric indices in a coastal lagoon system exposed to wastewater discharges","authors":"Alexandra Cravo , Ana B. Barbosa , Maria João Lima, Cristina Ferreira, Cátia Correia, André Matos, José Jacob, Sandra Caetano","doi":"10.1016/j.marpolbul.2025.117814","DOIUrl":"10.1016/j.marpolbul.2025.117814","url":null,"abstract":"<div><div>Water quality degradation associated with wastewater discharges compromises the production of marine living resources. Water quality indices (WQIs) are relevant tools for water quality management, but most applications are limited to the suitability of freshwater for drinking. In this study, a novel WQI was developed to assess the effects of urban wastewater treatment plant (WWTP) discharges on the water quality in Ria Formosa coastal lagoon, targeting the condition of bivalve molluscs and consumer food safety (WQIB). The application of WQIB was compared with an adapted version of the Canadian Council of Ministers of the Environment Water Quality Index, using similar parameters (CCME-WQI<sub>B</sub>). WQIB and CCME-WQI<sub>B</sub> were applied to four areas next to WWTPs, over a 2-year period. WQIB integrated seven sub-indices (salinity, unionized ammonia, dissolved oxygen, suspended solids, chlorophyll-a, <em>Escherichia coli</em> and toxigenic phytoplankton), using a weighted additive aggregation function. Water quality ranged from very poor to very good and generally improved with distance from the effluent discharge points, and during the cold period. Highest influence of WWTP discharges was detected in areas under weak hydrodynamics. In areas under strong hydrodynamics, poor water quality was caused by the advection of toxigenic phytoplankton from adjacent coastal waters during the warm period. Although correlated, the use of WQIB should be preferred over CCME-WQI<sub>B</sub> due its greater sensitivity, use of weighted parameters and application at the sampling event scale. Our novel index extends the limited number of WQIs applied to marine systems and can be adapted to other systems and water use purposes.</div></div>","PeriodicalId":18215,"journal":{"name":"Marine pollution bulletin","volume":"214 ","pages":"Article 117814"},"PeriodicalIF":5.3,"publicationDate":"2025-03-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143631952","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Long-term monitoring of biofilm succession unveils differences between biodegradable and conventional plastic materials 对生物膜演替的长期监测揭示了可生物降解塑料材料与传统塑料材料之间的差异

IF 5.3 3区环境科学与生态学 Q1 ENVIRONMENTAL SCIENCES

Marine pollution bulletin

Pub Date : 2025-03-15 DOI: 10.1016/j.marpolbul.2025.117820

Anna Marín , Patricia Feijóo , Belén Carbonetto , Pedro González-Torres , José Tena-Medialdea , José R. García-March , José Gámez-Pérez , Luis Cabedo

A vast amount of plastic waste enters the ocean every year and the Mediterranean Sea is particularly affected by this issue. Biodegradable polymers like poly(lactic acid) (PLA) and poly(3-hydroxybutyrate-co-3-hydroxyvalerate) (PHBV), may help mitigate this problem. We investigated bacterial biofilm development and succession on these polymers over one year in the Western Mediterranean Sea. Scanning electron microscopy (SEM) and confocal laser scanning were used to examine microbial colonization and surface erosion, while bacterial community abundance and composition were assessed through culture plate counting and 16S rRNA gene amplicon sequencing. SEM revealed significant surface erosion on PHBV, indicative of microbial degradation, while PLA exhibited minor and irregular erosion. Culture-based quantification showed higher bacterial colonization on PHBV compared to PLA, suggesting that PHBV provides a more favourable surface for bacterial attachment Amplicon sequencing of the 16S rRNA gene revealed high bacterial diversity, with 17,781 operational taxonomic units across all samples. Proteobacteria, Bacteroidota, and Planctomycetota were the dominant phyla, with the Shannon index consistently exceeding 8, corroborating the bacterial diversity across all materials. Temporal shifts in bacterial community composition were significant, with exposure time explaining 29.8 % of the variation, suggesting biofilm succession as a key factor shaping microbial assemblages. While polymer type had a limited impact on bacterial composition, PHBV biofilms exhibited greater bacterial abundance and diversity compared to PLA. This study highlights PHBV's role in shaping biofilms and its relevance in assessing biodegradable plastics in marine environments. Understanding microbial interactions with bioplastics is crucial for evaluating their environmental impact and degradation dynamics.

{"title":"Long-term monitoring of biofilm succession unveils differences between biodegradable and conventional plastic materials","authors":"Anna Marín , Patricia Feijóo , Belén Carbonetto , Pedro González-Torres , José Tena-Medialdea , José R. García-March , José Gámez-Pérez , Luis Cabedo","doi":"10.1016/j.marpolbul.2025.117820","DOIUrl":"10.1016/j.marpolbul.2025.117820","url":null,"abstract":"<div><div>A vast amount of plastic waste enters the ocean every year and the Mediterranean Sea is particularly affected by this issue. Biodegradable polymers like poly(lactic acid) (PLA) and poly(3-hydroxybutyrate-<em>co</em>-3-hydroxyvalerate) (PHBV), may help mitigate this problem. We investigated bacterial biofilm development and succession on these polymers over one year in the Western Mediterranean Sea. Scanning electron microscopy (SEM) and confocal laser scanning were used to examine microbial colonization and surface erosion, while bacterial community abundance and composition were assessed through culture plate counting and 16S rRNA gene amplicon sequencing. SEM revealed significant surface erosion on PHBV, indicative of microbial degradation, while PLA exhibited minor and irregular erosion. Culture-based quantification showed higher bacterial colonization on PHBV compared to PLA, suggesting that PHBV provides a more favourable surface for bacterial attachment Amplicon sequencing of the 16S rRNA gene revealed high bacterial diversity, with 17,781 operational taxonomic units across all samples. Proteobacteria, Bacteroidota, and Planctomycetota were the dominant phyla, with the Shannon index consistently exceeding 8, corroborating the bacterial diversity across all materials. Temporal shifts in bacterial community composition were significant, with exposure time explaining 29.8 % of the variation, suggesting biofilm succession as a key factor shaping microbial assemblages. While polymer type had a limited impact on bacterial composition, PHBV biofilms exhibited greater bacterial abundance and diversity compared to PLA. This study highlights PHBV's role in shaping biofilms and its relevance in assessing biodegradable plastics in marine environments. Understanding microbial interactions with bioplastics is crucial for evaluating their environmental impact and degradation dynamics.</div></div>","PeriodicalId":18215,"journal":{"name":"Marine pollution bulletin","volume":"214 ","pages":"Article 117820"},"PeriodicalIF":5.3,"publicationDate":"2025-03-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143628901","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Environmental factors driving microcystin contamination of estuarine bivalve populations downstream of freshwater cyanobacterial blooms

IF 5.3 3区环境科学与生态学 Q1 ENVIRONMENTAL SCIENCES

Marine pollution bulletin

Pub Date : 2025-03-15 DOI: 10.1016/j.marpolbul.2025.117798

Marcella Kretz Wallace , Raphael M. Kudela , Christopher J. Gobler

Estuaries are dynamic environments that provide vital habitat to ecologically and commercially important bivalves. In some cases, freshwater tributaries can introduce cyanobacteria and associated cyanotoxins into estuaries that may subsequently accumulate in estuarine bivalves. Temporarily open/closed estuaries (TOCEs), which only experience tidal input for limited periods of time, may be particularly vulnerable to the accumulation of cyanotoxins in bivalves as they can be subject to freshwater input without tidal flushing and may experience lower salinities and cyanobacterial blooms. This study quantified levels of microcystin in bivalves collected as a time series over a five-year period (2017–2021) from Mecox Bay, a TOCE on Long Island, NY, USA, that hosts a productive oyster fishery and is downstream of a freshwater body that hosts microcystin-producing cyanobacterial blooms. During the study, microcystin was detected in all bivalves monitored including Eastern oysters (Crassostrea virginica), blue mussels (Mytilus edulis), and soft-shell clams (Mya arenaria), with levels in oysters exceeding those in other species and frequently exceeding 10 ng g⁻¹, the California regulatory action level for microcystin in tissue. While oysters were capable of depurating 60–90 % of microcystin after four-to-six weeks during summer, microcystin loads in bivalves often peaked in cooler months after water column cyanobacteria and microcystin levels had seasonally declined, suggesting toxin depuration slowed at colder temperatures. Multiple linear regression models established that time-integrated measurements of pelagic microcystin concentrations in freshwater and estuarine locations, water temperature (inverse correlation), and salinity had highly significant (r² = 0.71; p < 0.001) predictive power of the microcystin content in oysters. These findings demonstrate that bivalves, particularly oysters, in TOCEs located downstream of microcystin-producing cyanobacterial blooms are vulnerable to microcystin contamination, especially during fall months when temperature-dependent toxin depuration rates are likely slow.

{"title":"Environmental factors driving microcystin contamination of estuarine bivalve populations downstream of freshwater cyanobacterial blooms","authors":"Marcella Kretz Wallace , Raphael M. Kudela , Christopher J. Gobler","doi":"10.1016/j.marpolbul.2025.117798","DOIUrl":"10.1016/j.marpolbul.2025.117798","url":null,"abstract":"<div><div>Estuaries are dynamic environments that provide vital habitat to ecologically and commercially important bivalves. In some cases, freshwater tributaries can introduce cyanobacteria and associated cyanotoxins into estuaries that may subsequently accumulate in estuarine bivalves. Temporarily open/closed estuaries (TOCEs), which only experience tidal input for limited periods of time, may be particularly vulnerable to the accumulation of cyanotoxins in bivalves as they can be subject to freshwater input without tidal flushing and may experience lower salinities and cyanobacterial blooms. This study quantified levels of microcystin in bivalves collected as a time series over a five-year period (2017–2021) from Mecox Bay, a TOCE on Long Island, NY, USA, that hosts a productive oyster fishery and is downstream of a freshwater body that hosts microcystin-producing cyanobacterial blooms. During the study, microcystin was detected in all bivalves monitored including Eastern oysters (<em>Crassostrea virginica</em>), blue mussels (<em>Mytilus edulis</em>), and soft-shell clams (<em>Mya arenaria</em>), with levels in oysters exceeding those in other species and frequently exceeding 10 ng g<sup>−1</sup>, the California regulatory action level for microcystin in tissue. While oysters were capable of depurating 60–90 % of microcystin after four-to-six weeks during summer, microcystin loads in bivalves often peaked in cooler months after water column cyanobacteria and microcystin levels had seasonally declined, suggesting toxin depuration slowed at colder temperatures. Multiple linear regression models established that time-integrated measurements of pelagic microcystin concentrations in freshwater and estuarine locations, water temperature (inverse correlation), and salinity had highly significant (r<sup>2</sup> = 0.71; <em>p</em> < 0.001) predictive power of the microcystin content in oysters. These findings demonstrate that bivalves, particularly oysters, in TOCEs located downstream of microcystin-producing cyanobacterial blooms are vulnerable to microcystin contamination, especially during fall months when temperature-dependent toxin depuration rates are likely slow.</div></div>","PeriodicalId":18215,"journal":{"name":"Marine pollution bulletin","volume":"214 ","pages":"Article 117798"},"PeriodicalIF":5.3,"publicationDate":"2025-03-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143628902","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Microplastic contamination in green mussels (Perna viridis Linnaeus, 1858) from traditional seafood markets in Jakarta, Indonesia, and an evaluation of potential hazards

IF 5.3 3区环境科学与生态学 Q1 ENVIRONMENTAL SCIENCES

Marine pollution bulletin

Pub Date : 2025-03-14 DOI: 10.1016/j.marpolbul.2025.117818

Yulia Irnidayanti , Agoes Soegianto , Farel Akbar Ramdhany , Alfin Fatwa M. Afifudin , Carolyn Melissa Payus , Mark G.J. Hartl

Marine organisms, especially mussels, can efficiently take up microplastics (MPs) through their filtration processes. This study evaluated the characteristics of MPs in green mussels (Perna viridis) sold at traditional seafood markets in Jakarta, Indonesia. The polymers of MPs were examined using Fourier Transform Infrared spectroscopy, while the chemical components of MPs in green mussels were analyzed using Gas Chromatography-Mass Spectrometry. The MPs identified in green mussels sold at traditional seafood markets in Jakarta are predominantly of fiber type, display a black coloration, and measure <100 μm in size. The density of these microplastics in green mussels is uniform across all traditional markets. The concentration of microplastics in green mussels correlates positively with the length of the green mussel shell. The average annual consumption of mussel products by people in Jakarta was 11,170 items/year/person. Green mussels from Jakarta exhibited a significantly elevated polymer hazard index (III), indicating the presence of polymers categorized as high risk. Certain plasticizers (phthalates) and specific additive chemicals (phenol, butylated hydroxytoluene, and hexadecanamide) were also present in green mussels sourced from traditional markets in Jakarta. These substances are toxic and have a negative impact on both aquatic life and humans.

{"title":"Microplastic contamination in green mussels (Perna viridis Linnaeus, 1858) from traditional seafood markets in Jakarta, Indonesia, and an evaluation of potential hazards","authors":"Yulia Irnidayanti , Agoes Soegianto , Farel Akbar Ramdhany , Alfin Fatwa M. Afifudin , Carolyn Melissa Payus , Mark G.J. Hartl","doi":"10.1016/j.marpolbul.2025.117818","DOIUrl":"10.1016/j.marpolbul.2025.117818","url":null,"abstract":"<div><div>Marine organisms, especially mussels, can efficiently take up microplastics (MPs) through their filtration processes. This study evaluated the characteristics of MPs in green mussels (<em>Perna viridis</em>) sold at traditional seafood markets in Jakarta, Indonesia. The polymers of MPs were examined using Fourier Transform Infrared spectroscopy, while the chemical components of MPs in green mussels were analyzed using Gas Chromatography-Mass Spectrometry. The MPs identified in green mussels sold at traditional seafood markets in Jakarta are predominantly of fiber type, display a black coloration, and measure <100 μm in size. The density of these microplastics in green mussels is uniform across all traditional markets. The concentration of microplastics in green mussels correlates positively with the length of the green mussel shell. The average annual consumption of mussel products by people in Jakarta was 11,170 items/year/person. Green mussels from Jakarta exhibited a significantly elevated polymer hazard index (III), indicating the presence of polymers categorized as high risk. Certain plasticizers (phthalates) and specific additive chemicals (phenol, butylated hydroxytoluene, and hexadecanamide) were also present in green mussels sourced from traditional markets in Jakarta. These substances are toxic and have a negative impact on both aquatic life and humans.</div></div>","PeriodicalId":18215,"journal":{"name":"Marine pollution bulletin","volume":"214 ","pages":"Article 117818"},"PeriodicalIF":5.3,"publicationDate":"2025-03-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143628392","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Potential drivers of pocilloporid coral extirpations in Singapore

IF 5.3 3区环境科学与生态学 Q1 ENVIRONMENTAL SCIENCES

Marine pollution bulletin

Pub Date : 2025-03-14 DOI: 10.1016/j.marpolbul.2025.117791

Annie Ann Nee Chew , Yan Zhi Yap , Rosa Celia Poquita-Du , Danwei Huang , Peter Alan Todd

The reason why four out of five historically recorded pocilloporid species in Singapore went extinct remains unclear. However, potential causes include urbanization-related stressors such as sedimentation and low light. In this study, we conducted two ex-situ experiments to examine the effects of light limitation and sediment load on the survival and health of two extirpated (Stylophora pistillata, and Seriatopora hystrix), one extant (Pocillopora acuta), and one regional (Pocillopora meandrina) pocilloporid species. All were able to photoacclimate to high sedimentation and low light conditions. However, P. acuta and Se. hystrix exhibited reduced growth under low light, and mortality was significantly higher under increased sedimentation, especially for St. pistillata. While our results indicate that sedimentation and low light characteristic in Singapore's urban reefs are unlikely to be the sole drivers of pocilloporid extirpations, these variables probably contributed to the overall stress burden, pushing already uncommon species into functional, and then actual, extinction.

{"title":"Potential drivers of pocilloporid coral extirpations in Singapore","authors":"Annie Ann Nee Chew , Yan Zhi Yap , Rosa Celia Poquita-Du , Danwei Huang , Peter Alan Todd","doi":"10.1016/j.marpolbul.2025.117791","DOIUrl":"10.1016/j.marpolbul.2025.117791","url":null,"abstract":"<div><div>The reason why four out of five historically recorded pocilloporid species in Singapore went extinct remains unclear. However, potential causes include urbanization-related stressors such as sedimentation and low light. In this study, we conducted two ex-situ experiments to examine the effects of light limitation and sediment load on the survival and health of two extirpated (<em>Stylophora pistillata</em>, and <em>Seriatopora hystrix</em>), one extant (<em>Pocillopora acuta</em>), and one regional (<em>Pocillopora meandrina)</em> pocilloporid species. All were able to photoacclimate to high sedimentation and low light conditions. However, <em>P. acuta</em> and <em>Se. hystrix</em> exhibited reduced growth under low light, and mortality was significantly higher under increased sedimentation, especially for <em>St. pistillata</em>. While our results indicate that sedimentation and low light characteristic in Singapore's urban reefs are unlikely to be the sole drivers of pocilloporid extirpations, these variables probably contributed to the overall stress burden, pushing already uncommon species into functional, and then actual, extinction.</div></div>","PeriodicalId":18215,"journal":{"name":"Marine pollution bulletin","volume":"214 ","pages":"Article 117791"},"PeriodicalIF":5.3,"publicationDate":"2025-03-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143628394","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Muscle oxidative stress, neurotoxicity and human health risks from consuming fish exposed to metallic settleable atmospheric particulate matter

IF 5.3 3区环境科学与生态学 Q1 ENVIRONMENTAL SCIENCES

Marine pollution bulletin

Pub Date : 2025-03-14 DOI: 10.1016/j.marpolbul.2025.117821

Mariana V. Carvalho , Rafaella Monteiro , Iara da C. Souza , Julieta Griboff , Fabiano Bendhack , Magdalena V. Monferrán , Daniel A. Wunderlin , Marisa N. Fernandes

The concentration of metals/metalloids in settleable particulate matter (SePM) from industrial area and in the muscles were determined in the estuarine fish, Centropomus parallelus, after 96 h-exposure to different SePM concentrations. Antioxidant defenses, oxidative damage and neurotoxicity were also determined. The risk for human consumption was evaluated by estimating daily intake (EDI), target hazard quotient (THQ), and hazard index (HI) and compared with fish collected close to the industries. Eighteen metals/metalloids were quantified in SePM and the muscles. In red muscle, the antioxidant enzymes were unchanged, and the acetylcholinesterase (AChE) activity and protein carbonyls (PC) increased. In white muscle, the glutathione-S-transferase (GST) activity and glutathione content (GSH) decreased, PC levels and lipid peroxidation (LPO) increased; the AChE was unchanged. Metals/metalloids bioaccumulated in muscles induced oxidative damage which may affect muscle function and consequently, fish performance. After short-term exposure to SePM there was no risk for human consumption. However, the EDI of fish collected in field exceeded the acceptable DI for children concerning to As and Hg. HI were lower than 1 revealing no carcinogenic risk.

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引用次数: 0

Invasion context matters: Vulnerability of the sea urchin Paracentrotus lividus to ingestion of Rugulopteryx okamurae increases with invasion time 入侵环境很重要：海胆Paracentrotus lividus摄食Rugulopteryx okamurae的脆弱性随入侵时间的延长而增加

IF 5.3 3区环境科学与生态学 Q1 ENVIRONMENTAL SCIENCES

Marine pollution bulletin

Pub Date : 2025-03-14 DOI: 10.1016/j.marpolbul.2025.117826

Alejandro Bernal-Ibáñez , Marta Castilla-Gavilán , Esperanza G. Sumariva , Ismael Hachero-Cruzado

The current spread and proliferation of the invasive macroalga Rugulopteryx okamurae in South European coastal waters is a major ecological problem with a high socioeconomic impact. First identified as invasive in the Strait of Gibraltar (S Iberian Peninsula) in 2014, R. okamurae continues its expansion along the Atlantic and Mediterranean coasts. Despite its extended presence, the biotic control mechanisms and long-term impacts of R. okamurae consumption by native herbivores remain unexamined. This 24-week experiment investigates the physiological responses of the common sea urchin Paracentrotus lividus from three different locations following an invasion gradient by the time when R. okamurae was first detected. Sea urchin individuals were fed two diets: a strict diet of 100 % R. okamurae or a mixed diet with 50 % R. okamurae and 50 % Ulva sp. We evaluated the response of P. lividus individuals based on ingestion rates, relative weight (g), mortality, Ivlev's electivity index, and gonadosomatic index (GSI). Individuals from locations with more time since invasion fed on 100 % R. okamurae showed higher weight loss, higher mortality, and lower GSI than individuals from short-term invaded locations. Those negative effects were reduced for individuals fed a mixed diet. Within the mixed diet, Ivlev's electivity values of individuals from “10 years of invasion” reduced from random selection to partial avoidance over R. okamurae across the experiment. Our results reveal long-term underlying effects of R. okamurae ingestion, suggesting implications for the conservation of P. lividus populations in invaded locations, with potential ecosystem-level consequences as it is a key controlling species in coastal systems.

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引用次数: 0

Persistent metal and metalloid fluxes to the seafloor from an underlying mine tailings deposit 25 years after disposal off Portmán Bay (SE Spain) 在波特曼湾（西班牙东南部）外海弃置 25 年后，下层矿山尾矿沉积物中的金属和类金属向海底的持久通量

IF 5.3 3区环境科学与生态学 Q1 ENVIRONMENTAL SCIENCES

Marine pollution bulletin

Pub Date : 2025-03-14 DOI: 10.1016/j.marpolbul.2025.117803

M. Cerdà-Domènech , J. Frigola , M. Canals , A. Sanchez-Vidal , A. Baza-Varas , M. Tarrés , M. Van Daele , M.N. Boone , D. Amblas , J. Garcia-Orellana

Coastal disposal of mine wastes has been recognized as a critical source of metals and metalloids to the water column and seabed sediments, leading to ecotoxicological impacts and benthic habitat loss. Portmán Bay, SE Spain, is one of the most severe cases of coastal impacts due to mine waste dumping. From 1957 to 1990, 57 million tons of metal (Fe, Mn, Zn and Pb) and metalloid–rich (As) artificial soils were discharged into the shoreline, completely filling the bay and extending it seaward. Decades after mining ceased, concerns remain about the stability of the submarine deposit and potential remobilization that could be induced by a potential coastline restoration project or other natural processes.

This study aims to provide a complete physical and geochemical characterization of the uppermost layers of the mine tailings deposit and the pre and post–dumping marine sediment off Portmán Bay, focusing on the dispersal patterns and pollution levels of metal(loid)s throughout the inner continental shelf. Post-dumping sediment metal(loid) concentrations are lower than those in the tailings but still significantly higher than pre-dumping levels. Enrichment factors in the seafloor sediments (post-dumping) have been identified for Pb (5 times higher than background natural values), Mn (8×), As (9×), Zn (22×) and Fe (56×). Additionally, 8.6 km² of the seabed could be considered hazardous based on the Action Level B threshold of the Sediment Quality Guidelines for Zn, As and Pb. These findings indicate ongoing metal(loid) flux into shelf sediments, providing insights for the environmental restoration of Portmán Bay and its seafloor.

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引用次数: 0