This study assessed the exposure of free-ranging Amazon River dolphins (Inia geoffrensis) to phthalate esters (PAE) in a remote area of the Brazilian Amazon. Blubber samples were analyzed for four PAEs - dimethyl phthalate, diethyl phthalate, dibutyl phthalate, and di(2-ethylhexyl) phthalate - and cholesterol contents to evaluate potential metabolic disturbances. All dolphins were contaminated with at least two PAEs, with DEHP (242.16 ng/μL) and DBP (191.62 ng/μL) being the most frequent, detected in 93 % and 79 % of the sample, respectively. Significant positive correlations were found between DBP and DEP (r = 0.857), DEHP and DEP (r = 0.794), and DBP and body length (r = 0.642), suggesting bioaccumulation. Despite the cholesterol data not showing a correlation with the other findings, these results highlight PAE pollution in a supposedly pristine environment and their potential impact on the health and conservation of Amazon River dolphins' health and Amazonian ecosystem.
{"title":"Phthalate ester and cholesterol profiles of blubber samples of the free-ranging Amazon River dolphin (Cetacea: Iniidae: Inia geoffrensis) in the Brazilian Amazon","authors":"Lucas Fazardo de Lima , Isadora Nicole Lara Piccinin , Giulia Galani Martha , Susane Lopes , Thaís Carneiro Santos Rodrigues , Miriam Marmontel , Cristiane Kiyomi Miyaji Kolesnikovas , Marcelo Maraschin","doi":"10.1016/j.marpolbul.2024.117211","DOIUrl":"10.1016/j.marpolbul.2024.117211","url":null,"abstract":"<div><div>This study assessed the exposure of free-ranging Amazon River dolphins (<em>Inia geoffrensis</em>) to phthalate esters (PAE) in a remote area of the Brazilian Amazon. Blubber samples were analyzed for four PAEs - dimethyl phthalate, diethyl phthalate, dibutyl phthalate, and di(2-ethylhexyl) phthalate - and cholesterol contents to evaluate potential metabolic disturbances. All dolphins were contaminated with at least two PAEs, with DEHP (242.16 ng/μL) and DBP (191.62 ng/μL) being the most frequent, detected in 93 % and 79 % of the sample, respectively. Significant positive correlations were found between DBP and DEP (r = 0.857), DEHP and DEP (r = 0.794), and DBP and body length (r = 0.642), suggesting bioaccumulation. Despite the cholesterol data not showing a correlation with the other findings, these results highlight PAE pollution in a supposedly pristine environment and their potential impact on the health and conservation of Amazon River dolphins' health and Amazonian ecosystem.</div></div>","PeriodicalId":18215,"journal":{"name":"Marine pollution bulletin","volume":"209 ","pages":"Article 117211"},"PeriodicalIF":5.3,"publicationDate":"2024-11-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142569097","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}
Pub Date : 2024-11-02DOI: 10.1016/j.marpolbul.2024.117208
Dannielle S. Green, Bas Boots, Tom Tingey
Cigarette butts are amongst the most littered single-use plastics on coasts, yet their impacts on marine ecosystems, especially on a community level, are not well understood. Recently, e-cigarettes have become popular and are a novel litter item in marine habitats. Preliminary research indicates that e-liquid can harm individual organisms, but few studies have been done and none on a community level. In a mesocosm experiment, we tested the impacts of cigarette butts (0.25, 1 butt L−1) or e-liquid (1 mL L−1) on infaunal invertebrate communities using intact sediment cores. After two weeks, the abundance of polychaetes, bivalves, and gastropods was significantly reduced in mesocosms with 1 cigarette butt L−1 compared with controls. Exposure to e-liquid resulted in severe oxygen depletion (<1 mg L−1) and almost complete mortality of sediment infauna after just four days. As litter, cigarette butts and disposable e-cigarettes both pose a threat to estuarine biodiversity.
烟头是海岸上被丢弃最多的一次性塑料制品之一，但人们对烟头对海洋生态系统的影响，尤其是对群落的影响还不甚了解。最近，电子烟开始流行，成为海洋栖息地中的一种新型垃圾。初步研究表明，电子烟液会对生物个体造成伤害，但针对群落层面的研究却很少。在一个中观实验中，我们使用完整的沉积物岩心测试了烟头（0.25、1 个烟头 L-1）或电子液体（1 mL L-1）对底栖无脊椎动物群落的影响。两周后，与对照组相比，多毛类、双壳类和腹足类在含有 1 个烟头 L-1 的中置池中的数量明显减少。接触电子液体会导致严重的氧气耗竭（-1），仅四天后沉积物中的无脊椎动物就几乎完全死亡。作为垃圾，烟头和一次性电子烟都对河口生物多样性构成威胁。
{"title":"Rapid, detrimental response of estuarine benthic macrofauna communities to pollution by littered cigarette filters and e-liquid","authors":"Dannielle S. Green, Bas Boots, Tom Tingey","doi":"10.1016/j.marpolbul.2024.117208","DOIUrl":"10.1016/j.marpolbul.2024.117208","url":null,"abstract":"<div><div>Cigarette butts are amongst the most littered single-use plastics on coasts, yet their impacts on marine ecosystems, especially on a community level, are not well understood. Recently, e-cigarettes have become popular and are a novel litter item in marine habitats. Preliminary research indicates that e-liquid can harm individual organisms, but few studies have been done and none on a community level. In a mesocosm experiment, we tested the impacts of cigarette butts (0.25, 1 butt L<sup>−1</sup>) or e-liquid (1 mL L<sup>−1</sup>) on infaunal invertebrate communities using intact sediment cores. After two weeks, the abundance of polychaetes, bivalves, and gastropods was significantly reduced in mesocosms with 1 cigarette butt L<sup>−1</sup> compared with controls. Exposure to e-liquid resulted in severe oxygen depletion (<1 mg L<sup>−1</sup>) and almost complete mortality of sediment infauna after just four days. As litter, cigarette butts and disposable e-cigarettes both pose a threat to estuarine biodiversity.</div></div>","PeriodicalId":18215,"journal":{"name":"Marine pollution bulletin","volume":"209 ","pages":"Article 117208"},"PeriodicalIF":5.3,"publicationDate":"2024-11-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142569098","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}
Pub Date : 2024-11-02DOI: 10.1016/j.marpolbul.2024.117175
Jin-Su Oh , Na Yeong Kim , JoonHyeong Park , Hyeonju Jung , Gi Beum Kim
Measuring the concentration of PAHs in the freely dissolved phase is crucial for assessing ecological impacts in the marine environment. However, various environmental conditions make short-term monitoring challenging. This study used an optimized High Speed Rotation-Type Passive Sampling Device (HSR-PSD) equipped with linear low-density polyethylene (LLDPE) to conduct the first nationwide monitoring of freely dissolved PAHs in Korean coastal waters. The HSR-PSD enabled faster short-term monitoring by measuring Cfree of PAHs within 12 h and was less affected by environmental conditions compared to conventional PSDs. Σ15PAH concentrations ranged from 2.8 to 9.4 ng/L, with significantly higher levels on the western coast. Anthropogenic activities and oceanic conditions affected Cfree distribution in coastal areas. Based on Cfree, the estimated PAH levels in bivalves and fish were aligned with reported tissue concentrations, exhibiting low ecological risk to aquatic organisms. Therefore, the HSR-PSD with LLDPE is a suitable tool for nationwide short-term monitoring.
{"title":"Nationwide monitoring of freely dissolved polycyclic aromatic hydrocarbons (PAHs) using high speed rotation-type passive sampling device in Korean coastal waters","authors":"Jin-Su Oh , Na Yeong Kim , JoonHyeong Park , Hyeonju Jung , Gi Beum Kim","doi":"10.1016/j.marpolbul.2024.117175","DOIUrl":"10.1016/j.marpolbul.2024.117175","url":null,"abstract":"<div><div>Measuring the concentration of PAHs in the freely dissolved phase is crucial for assessing ecological impacts in the marine environment. However, various environmental conditions make short-term monitoring challenging. This study used an optimized High Speed Rotation-Type Passive Sampling Device (HSR-PSD) equipped with linear low-density polyethylene (LLDPE) to conduct the first nationwide monitoring of freely dissolved PAHs in Korean coastal waters. The HSR-PSD enabled faster short-term monitoring by measuring C<sub>free</sub> of PAHs within 12 h and was less affected by environmental conditions compared to conventional PSDs. Σ<sub>15</sub>PAH concentrations ranged from 2.8 to 9.4 ng/L, with significantly higher levels on the western coast. Anthropogenic activities and oceanic conditions affected C<sub>free</sub> distribution in coastal areas. Based on C<sub>free</sub>, the estimated PAH levels in bivalves and fish were aligned with reported tissue concentrations, exhibiting low ecological risk to aquatic organisms. Therefore, the HSR-PSD with LLDPE is a suitable tool for nationwide short-term monitoring.</div></div>","PeriodicalId":18215,"journal":{"name":"Marine pollution bulletin","volume":"209 ","pages":"Article 117175"},"PeriodicalIF":5.3,"publicationDate":"2024-11-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142569090","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}
Pub Date : 2024-11-02DOI: 10.1016/j.marpolbul.2024.117235
Zeyu Yang , Keval Shah , Bruce Hollebone , Sonia Laforest , Madison MacGillivray , Diane Dey , Jose Luis Rodriguez , Benoit Lalonde , Chun Yang , Vanessa Beaulac , Jules M. Blais , Mark Hanson , Diane M. Orihel
This study assessed the impact of on-site field-simulated oil spills at the International Institute for Sustainable Development-Experimental Lakes Area (IISD-ELA) on a freshwater boreal lake. Low total petroleum hydrocarbons (TPH) values were obtained in water and sediments from the locations without direct oil loading across the 6-year monitoring program. Biogenic n-alkanes and pyrogenic polycyclic aromatic hydrocarbons (PAHs) were predominant pre- and post-spill. No petroleum biomarkers were detected in the water, but trace levels appeared in a few sediments. Most TPH and PAH levels were within acceptable limits set by the Canadian Council of Ministers of the Environment (CCME) and Ontario regulations, though some PAHs exceeded guidelines. However, the frequency of exceedances did not change significantly before and after the spill. These results suggest that the spilled oil was contained effectively during the experiment period, and the environment recovered to near-background levels afterward with appropriate precautions and remediation operations.
{"title":"Occurrence, characterization, and ecological risk analysis of petroleum hydrocarbons in water and sediments following large-scale field simulated oil spills at the experimental lakes area, Northwestern Ontario, Canada","authors":"Zeyu Yang , Keval Shah , Bruce Hollebone , Sonia Laforest , Madison MacGillivray , Diane Dey , Jose Luis Rodriguez , Benoit Lalonde , Chun Yang , Vanessa Beaulac , Jules M. Blais , Mark Hanson , Diane M. Orihel","doi":"10.1016/j.marpolbul.2024.117235","DOIUrl":"10.1016/j.marpolbul.2024.117235","url":null,"abstract":"<div><div>This study assessed the impact of on-site field-simulated oil spills at the International Institute for Sustainable Development-Experimental Lakes Area (IISD-ELA) on a freshwater boreal lake. Low total petroleum hydrocarbons (TPH) values were obtained in water and sediments from the locations without direct oil loading across the 6-year monitoring program. Biogenic <em>n</em>-alkanes and pyrogenic polycyclic aromatic hydrocarbons (PAHs) were predominant pre- and post-spill. No petroleum biomarkers were detected in the water, but trace levels appeared in a few sediments. Most TPH and PAH levels were within acceptable limits set by the Canadian Council of Ministers of the Environment (CCME) and Ontario regulations, though some PAHs exceeded guidelines. However, the frequency of exceedances did not change significantly before and after the spill. These results suggest that the spilled oil was contained effectively during the experiment period, and the environment recovered to near-background levels afterward with appropriate precautions and remediation operations.</div></div>","PeriodicalId":18215,"journal":{"name":"Marine pollution bulletin","volume":"209 ","pages":"Article 117235"},"PeriodicalIF":5.3,"publicationDate":"2024-11-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142569094","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}
Pub Date : 2024-11-01Epub Date: 2024-10-04DOI: 10.1016/j.marpolbul.2024.117095
Michele Mistri, Elia Casoni, Virginia Strati, Cristina Munari
This study represents the baseline of estimation of the potential service provided by fishermen as "cleaners of the sea". The amount, composition and depth distribution of marine litter in fishing grounds of the Northern Adriatic seafloor has been investigated through the fishing for litter (FFL) scheme. Passive FFL campaigns were carried out by trawlers from two of the most important fishing ports in the northern Adriatic, Chioggia and Goro, from May 2020 to May 2021. Over the course of 256 days of fishing, over 6 tons of litter were removed from 265 km2 of seafloor. Abandoned, lost and derelict fishing gears (ALDFG) were the most represented litter category (48 % of the total litter), and of these 67 % were plastic ALDFG (mostly mussel socks and fishing nets). Fouling on plastic waste was analyzed to determine the fraction of collected litter items that could be destinated to recycling. Only a small percentage of the plastic litter analyzed was "clean" from adherent and/or encrusting organisms. Approximately 2.4 tons of plastic were recovered, but, due to the biological colonization of surfaces, they cannot be recycled by using the technologies present in the area.
{"title":"Benthic litter in fishing grounds of the Northern Adriatic: Role of the trawling fleet as cleaners of the seafloor.","authors":"Michele Mistri, Elia Casoni, Virginia Strati, Cristina Munari","doi":"10.1016/j.marpolbul.2024.117095","DOIUrl":"10.1016/j.marpolbul.2024.117095","url":null,"abstract":"<p><p>This study represents the baseline of estimation of the potential service provided by fishermen as \"cleaners of the sea\". The amount, composition and depth distribution of marine litter in fishing grounds of the Northern Adriatic seafloor has been investigated through the fishing for litter (FFL) scheme. Passive FFL campaigns were carried out by trawlers from two of the most important fishing ports in the northern Adriatic, Chioggia and Goro, from May 2020 to May 2021. Over the course of 256 days of fishing, over 6 tons of litter were removed from 265 km<sup>2</sup> of seafloor. Abandoned, lost and derelict fishing gears (ALDFG) were the most represented litter category (48 % of the total litter), and of these 67 % were plastic ALDFG (mostly mussel socks and fishing nets). Fouling on plastic waste was analyzed to determine the fraction of collected litter items that could be destinated to recycling. Only a small percentage of the plastic litter analyzed was \"clean\" from adherent and/or encrusting organisms. Approximately 2.4 tons of plastic were recovered, but, due to the biological colonization of surfaces, they cannot be recycled by using the technologies present in the area.</p>","PeriodicalId":18215,"journal":{"name":"Marine pollution bulletin","volume":"208 ","pages":"117095"},"PeriodicalIF":5.3,"publicationDate":"2024-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142378041","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}
Pub Date : 2024-11-01Epub Date: 2024-10-04DOI: 10.1016/j.marpolbul.2024.117026
Birte M Torp Maaseide, Johannes Ofstad, Andreas Erbe, Veerle L B Jaspers, Laura Monclús, Nina Dehnhard
Plastic pollution is an increasing problem in the marine environment, and microplastics are frequently ingested by wildlife, including seabirds. Faeces are an increasingly used matrix to quantify egested microplastics. We investigated microplastics in 36 faeces samples from chicks of European shags (Gulosus aristotelis) sampled at Sklinna, central Norway in 2021. Small particles <300 μm (62 %) dominated the material. Out of 465 particles measured with Raman spectroscopy, 32 were identified as microplastics (21 fragments, 4 fibres). 69.4 % of faecal samples contained microplastics, with on average 17 microplastic particles per g faeces dry weight. Sixteen of the 36 samples originated from siblings sampled within the same hour, and plastic loads of these samples were more similar to each other compared to those from other individuals. This suggests that a sample from one chick is representative for all siblings at a given moment in time and proofs parental transfer of MP.
{"title":"Microplastics in faeces of European shags Gulosus aristotelis in central Norway.","authors":"Birte M Torp Maaseide, Johannes Ofstad, Andreas Erbe, Veerle L B Jaspers, Laura Monclús, Nina Dehnhard","doi":"10.1016/j.marpolbul.2024.117026","DOIUrl":"10.1016/j.marpolbul.2024.117026","url":null,"abstract":"<p><p>Plastic pollution is an increasing problem in the marine environment, and microplastics are frequently ingested by wildlife, including seabirds. Faeces are an increasingly used matrix to quantify egested microplastics. We investigated microplastics in 36 faeces samples from chicks of European shags (Gulosus aristotelis) sampled at Sklinna, central Norway in 2021. Small particles <300 μm (62 %) dominated the material. Out of 465 particles measured with Raman spectroscopy, 32 were identified as microplastics (21 fragments, 4 fibres). 69.4 % of faecal samples contained microplastics, with on average 17 microplastic particles per g faeces dry weight. Sixteen of the 36 samples originated from siblings sampled within the same hour, and plastic loads of these samples were more similar to each other compared to those from other individuals. This suggests that a sample from one chick is representative for all siblings at a given moment in time and proofs parental transfer of MP.</p>","PeriodicalId":18215,"journal":{"name":"Marine pollution bulletin","volume":"208 ","pages":"117026"},"PeriodicalIF":5.3,"publicationDate":"2024-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142378043","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}
Pub Date : 2024-11-01Epub Date: 2024-10-02DOI: 10.1016/j.marpolbul.2024.117079
Cris Reven L Gibaga, Jessie O Samaniego, Alexandria M Tanciongco, Rico Neil M Quierrez, John Henry C Gervasio, Rachelle Clien G Reyes
Boracay Island, Philippines, famous for its white sand beaches, has wetlands increasingly threatened by human activities. This study evaluated the ecological state of Boracay Island's wetlands and assessed the consequences of anthropogenic activities on sediment quality. Results showed that sediments from Wetland Nos. 3 and 4 have higher concentrations of potentially toxic elements (PTEs) than Wetland No. 1. Comparative analysis with other Southeast Asian wetlands revealed that Boracay's sediments contain the highest average values of As, Cd, Cu, Ni, Zn. Enrichment factor values suggest that the moderate enrichment of Cd, Cr, Cu, Mo, Pb, and Zn in the wetland sediments can be attributed to anthropogenic activities on the island. Elevated concentrations of Cr, Cu, and Zn above interim sediment quality guidelines indicate occasional adverse biological effects on aquatic biota. These findings provide a crucial baseline for future pollution monitoring and highlight the need for ongoing conservation efforts in Boracay's wetlands.
{"title":"Assessment of potentially toxic element contamination in wetland sediments of Boracay Island, Philippines.","authors":"Cris Reven L Gibaga, Jessie O Samaniego, Alexandria M Tanciongco, Rico Neil M Quierrez, John Henry C Gervasio, Rachelle Clien G Reyes","doi":"10.1016/j.marpolbul.2024.117079","DOIUrl":"10.1016/j.marpolbul.2024.117079","url":null,"abstract":"<p><p>Boracay Island, Philippines, famous for its white sand beaches, has wetlands increasingly threatened by human activities. This study evaluated the ecological state of Boracay Island's wetlands and assessed the consequences of anthropogenic activities on sediment quality. Results showed that sediments from Wetland Nos. 3 and 4 have higher concentrations of potentially toxic elements (PTEs) than Wetland No. 1. Comparative analysis with other Southeast Asian wetlands revealed that Boracay's sediments contain the highest average values of As, Cd, Cu, Ni, Zn. Enrichment factor values suggest that the moderate enrichment of Cd, Cr, Cu, Mo, Pb, and Zn in the wetland sediments can be attributed to anthropogenic activities on the island. Elevated concentrations of Cr, Cu, and Zn above interim sediment quality guidelines indicate occasional adverse biological effects on aquatic biota. These findings provide a crucial baseline for future pollution monitoring and highlight the need for ongoing conservation efforts in Boracay's wetlands.</p>","PeriodicalId":18215,"journal":{"name":"Marine pollution bulletin","volume":"208 ","pages":"117079"},"PeriodicalIF":5.3,"publicationDate":"2024-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142372155","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}
The sinking and combustion of the MV X-Press Pearl in May 2021 caused severe marine pollution, releasing toxic materials and billions of plastic nurdles. Nurdle pollution threatens sensitive coastal habitats and negatively impacts social welfare. This study aimed to 1) conduct a citizen science program to quantify nurdle distribution during the disaster, and 2) evaluate the societal impact, attitudes, knowledge, and perceptions in the disaster's aftermath. Results derived via the citizen science study indicated that Colombo, Gampaha and Puttalam districts to be hotspot areas with the highest nurdle densities of 50,789 ± 1139 m-2, 48,107 ± 3408 m-2 and 33,231 ± 689 m-2, respectively. Results from the public perception survey showed that the majority (80 %) of the respondents were affected by the incident. Over 70 % of the survey participants were either not satisfied or neutral towards the compensation provided for livelihood loss. Nearly 60 % took a neutral stance when questioned about the country's readiness to respond to marine disasters.
{"title":"Citizen science and community engagement for environmental monitoring and emergency response: Lessons from the MV X-Press Pearl ship disaster.","authors":"Chaturangi Wickramaratne, Thilini Dilrukshi, Medhisha Gunawardena, Susantha Udagedara, Malik Fernando, Sevvandi Jayakody","doi":"10.1016/j.marpolbul.2024.117033","DOIUrl":"10.1016/j.marpolbul.2024.117033","url":null,"abstract":"<p><p>The sinking and combustion of the MV X-Press Pearl in May 2021 caused severe marine pollution, releasing toxic materials and billions of plastic nurdles. Nurdle pollution threatens sensitive coastal habitats and negatively impacts social welfare. This study aimed to 1) conduct a citizen science program to quantify nurdle distribution during the disaster, and 2) evaluate the societal impact, attitudes, knowledge, and perceptions in the disaster's aftermath. Results derived via the citizen science study indicated that Colombo, Gampaha and Puttalam districts to be hotspot areas with the highest nurdle densities of 50,789 ± 1139 m<sup>-2</sup>, 48,107 ± 3408 m<sup>-2</sup> and 33,231 ± 689 m<sup>-2</sup>, respectively. Results from the public perception survey showed that the majority (80 %) of the respondents were affected by the incident. Over 70 % of the survey participants were either not satisfied or neutral towards the compensation provided for livelihood loss. Nearly 60 % took a neutral stance when questioned about the country's readiness to respond to marine disasters.</p>","PeriodicalId":18215,"journal":{"name":"Marine pollution bulletin","volume":"208 ","pages":"117033"},"PeriodicalIF":5.3,"publicationDate":"2024-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142378042","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}
Pub Date : 2024-11-01Epub Date: 2024-10-04DOI: 10.1016/j.marpolbul.2024.117037
Stella E Fulton, Tehya Hines, Cathie A Page, Ian M McLeod, James Whinney, Scott F Heron, David G Bourne, Hillary A Smith
Nearshore coral reefs face an increasing abundance of fleshy macroalgae, an indicator of degradation and threat to ecosystem functioning. Removal of macroalgae is proposed to assist coral recovery, though the ecological and physical impacts have not been studied. Nearshore reefs are also confronted with sedimentation stress, influencing reef dynamics including algal turfs, with flow-on impacts to coral recruitment, fish diets, and trophic cascades. In this study, the interplay between macroalgal canopies, sediment deposition and algal turf environments was investigated on the nearshore Great Barrier Reef. Removal of fleshy macroalgae over two years had no significant effect on the amount or composition of sediment deposited on proxy coral (SedPods) and algal turf (TurfPods) surfaces, nor was the height of algal turfs impacted. Deposition on TurfPods was greater with high-energy currents, likely due to retention of sediment within turfs. Therefore, macroalgae removal is unlikely to exacerbate nor alleviate sediment-related stress on benthic communities.
{"title":"Inshore coral reef sediment and turf dynamics unaffected by canopy-forming macroalgae.","authors":"Stella E Fulton, Tehya Hines, Cathie A Page, Ian M McLeod, James Whinney, Scott F Heron, David G Bourne, Hillary A Smith","doi":"10.1016/j.marpolbul.2024.117037","DOIUrl":"10.1016/j.marpolbul.2024.117037","url":null,"abstract":"<p><p>Nearshore coral reefs face an increasing abundance of fleshy macroalgae, an indicator of degradation and threat to ecosystem functioning. Removal of macroalgae is proposed to assist coral recovery, though the ecological and physical impacts have not been studied. Nearshore reefs are also confronted with sedimentation stress, influencing reef dynamics including algal turfs, with flow-on impacts to coral recruitment, fish diets, and trophic cascades. In this study, the interplay between macroalgal canopies, sediment deposition and algal turf environments was investigated on the nearshore Great Barrier Reef. Removal of fleshy macroalgae over two years had no significant effect on the amount or composition of sediment deposited on proxy coral (SedPods) and algal turf (TurfPods) surfaces, nor was the height of algal turfs impacted. Deposition on TurfPods was greater with high-energy currents, likely due to retention of sediment within turfs. Therefore, macroalgae removal is unlikely to exacerbate nor alleviate sediment-related stress on benthic communities.</p>","PeriodicalId":18215,"journal":{"name":"Marine pollution bulletin","volume":"208 ","pages":"117037"},"PeriodicalIF":5.3,"publicationDate":"2024-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142375683","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}
Pub Date : 2024-11-01DOI: 10.1016/j.marpolbul.2024.117218
Mamoru Tanaka , Yumena Okada , Jin Kashiwada , Hiroshi Kaneko , Hiroko Ito , Yasuo Nihei
Plastic pollution in river basins poses a significant environmental challenge, particularly in Japan, located in the northwestern North Pacific, often referred to as a hotspot for plastics. This study quantified the annual recovery of anthropogenic plastic litter from riverbanks and water surfaces, utilizing a nationwide cleanup dataset provided by the Japanese Ministry of Land, Infrastructure, Transport and Tourism. The dataset includes the amount of litter recovered through volunteer and administrative cleanup campaigns from 2016 to 2020 in 109 Japanese river basins. Total plastic recovery ranged from 763 to 1177 tons/year, averaging 938 tons/year. Basin-specific recovery was associated with extreme weather events, such as typhoon approaches and heavy rain, which caused significant flood damage in local regions. The estimated annual plastic recovery was an order of magnitude smaller than the previously estimated annual emission of land-based plastic.
{"title":"Country-wide assessment of plastic removal rates on riverbanks and water surfaces","authors":"Mamoru Tanaka , Yumena Okada , Jin Kashiwada , Hiroshi Kaneko , Hiroko Ito , Yasuo Nihei","doi":"10.1016/j.marpolbul.2024.117218","DOIUrl":"10.1016/j.marpolbul.2024.117218","url":null,"abstract":"<div><div>Plastic pollution in river basins poses a significant environmental challenge, particularly in Japan, located in the northwestern North Pacific, often referred to as a hotspot for plastics. This study quantified the annual recovery of anthropogenic plastic litter from riverbanks and water surfaces, utilizing a nationwide cleanup dataset provided by the Japanese Ministry of Land, Infrastructure, Transport and Tourism. The dataset includes the amount of litter recovered through volunteer and administrative cleanup campaigns from 2016 to 2020 in 109 Japanese river basins. Total plastic recovery ranged from 763 to 1177 tons/year, averaging 938 tons/year. Basin-specific recovery was associated with extreme weather events, such as typhoon approaches and heavy rain, which caused significant flood damage in local regions. The estimated annual plastic recovery was an order of magnitude smaller than the previously estimated annual emission of land-based plastic.</div></div>","PeriodicalId":18215,"journal":{"name":"Marine pollution bulletin","volume":"209 ","pages":"Article 117218"},"PeriodicalIF":5.3,"publicationDate":"2024-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142564698","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}
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