Plastics in the deep sea – A global estimate of the ocean floor reservoir

Deep Sea Research Part I Oceanographic Research Papers, Год журнала: 2024, Номер 206, С. 104266 - 104266

Опубликована: Март 2, 2024

Язык: Английский

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A focus on different types of organic matter particles and their significance in the open ocean carbon cycle

Progress In Oceanography, Год журнала: 2024, Номер 224, С. 103233 - 103233

Опубликована: Март 6, 2024

Marine particles are key to the cycling of major elements on Earth and play an important role in balance nutrients ocean. Three main categories marine link different parts open ocean by shaping carbon distribution: (i) sinking; (ii) suspended, (iii) ascending. Atmospheric captured phytoplankton surface water, is partly sequestered sinking bottom plays controlling global climate. Suspended represent a significant source organic for heterotrophic microorganisms more likely undergo remineralization compared particles. Ascending particles, depending their composition, point origin, ascending velocity, may lead upper layers closer proximity atmosphere. hotspots microbial activity thus heavily colonized whose dynamics matter degradation, aggregation sinking, directly influencing biological pump efficiency. Microbiomes differ particle size, source, age. Nevertheless, these factors generally overlooked, mostly studied as "bulk" without considering high heterogeneity between individual This hinders our understanding budget future predictions climate change. In this review we examine known particle-types associated sampling methods identify knowledge gaps emphasize need better single-particle ecosystem enhance upscaling rates. Furthermore, introduce novel concept: 'lipid shunt'.

Язык: Английский

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Addressing the Sustainability Conundrums and Challenges within the Polymer Value Chain

Sustainability, Год журнала: 2023, Номер 15(22), С. 15758 - 15758

Опубликована: Ноя. 8, 2023

Sustainability is a buzzword across numerous industries, and the polymer value chain no exception. Due to ubiquitous nature of products, conundrums misconceptions revolving around them are universal too. In this review, we attempt meticulously undertake some polymer-based sustainability challenges, driven by technical knowledge supported facts. Four major topics relevance selected reviewed without any bias. A basic understanding all sustainability-related jargon examined at beginning provide necessary fundamental awareness. Thereafter, emergence biobased products critically analyzed against its distinct biodegradability conundrums. This followed an outlook comparison plastic versus their alternatives. Greenwashing in fashion industry also depth. Among issues related microplastics assessed owing importance currently. It critical that readers can understand actual scenario call out product propaganda with superficial claims. meticulous overview existing literature information conducted summarize conundrums, future aspects. examination pertinent carried hope spreading knowledge, enabling higher critique within research community sustainable environment.

Язык: Английский

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Quantification and characterization of microplastics in surface water samples from the Northeast Atlantic Ocean using laser direct infrared imaging

Marine Pollution Bulletin, Год журнала: 2023, Номер 190, С. 114880 - 114880

Опубликована: Апрель 7, 2023

15 filtration samples were collected at eight locations onboard the RV Sonne (cruise SO279 in 2020) from 6 m water depth using a fractionated stainless-steel unit. The size fraction > 300 μm was visually examined and potential microplastic particles analyzed by ATR-FTIR spectroscopy. treatment of class 20 < d based on enzymatic-oxidative microwave-assisted "one-pot" matrix digestion conjunction with analysis microplastics time-efficient LDIR imaging. Total number concentrations ranged 47 to 2154 per m3 (average for all stations: 500 ± 700 m-3 (1 SD; n = 8)). In total, polymer types identified. most common polyethylene terephthalate (20 %) acrylates/polyurethane/varnish (15 %). 93 % detected smaller than 100 length. Analysis sample replicates indicates high spatio-temporal variations pollution within investigated region.

Язык: Английский

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From prey to predators: Evidence of microplastic trophic transfer in tuna and large pelagic species in the southwestern Tropical Atlantic

Environmental Pollution, Год журнала: 2023, Номер 327, С. 121532 - 121532

Опубликована: Март 29, 2023

Язык: Английский

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Is Zooplankton an Entry Point of Microplastics into the Marine Food Web?

Environmental Science & Technology, Год журнала: 2023, Номер 57(31), С. 11643 - 11655

Опубликована: Июль 27, 2023

Microplastics (MPs) overlap in size with phytoplankton and can be ingested by zooplankton, transferring them to higher trophic levels. Copepods are the most abundant metazoans among zooplankton main link between primary producers Ingestion of MPs has been investigated laboratory, but we still know little about ingestion natural environment. In this study, determined concentration characteristics down 10 μm samples, sorted calanoid copepods, fecal pellets collected Kattegat/Skagerrak Sea (Denmark). We found a median 1.7 ×

Язык: Английский

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Impacts of extracellular polymeric substances on the behaviors of micro/nanoplastics in the water environment

Environmental Pollution, Год журнала: 2023, Номер 338, С. 122691 - 122691

Опубликована: Окт. 3, 2023

Язык: Английский

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Lanternfish as bioindicator of microplastics in the deep sea: A spatiotemporal analysis using museum specimens

Journal of Hazardous Materials, Год журнала: 2025, Номер 487, С. 137125 - 137125

Опубликована: Янв. 6, 2025

Язык: Английский

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Effects of Different Types of Microplastics on Cold Seep Microbial Diversity and Function

Environmental Science & Technology, Год журнала: 2025, Номер 59(2), С. 1322 - 1333

Опубликована: Янв. 7, 2025

The massive production and widespread use of plastics have resulted in a growing marine plastic pollution problem. Cold seep ecosystems are maintained by microorganisms related to nitrogen carbon cycling that occur deep-sea areas, where cold hydrocarbon-rich water seeps from the ocean floor. Little is known about this ecosystem. To fill knowledge gap, we collected sediment seawater samples Haima conducted laboratory cultivation experiments, simulating situ environmental conditions. Environmental factors microbial genetics were analyzed at different stages over 2-month period. Our main conclusions as follows: (1) When microplastics (MPs) added environments, communities most closely resembled those original habitat. changes plastisphere mainly associated with culture time. (2) co-occurrence network was more fragile than environments. (3) Multiple determined community composition, whereas small number variables drove function. MPs affected methane metabolism might aggregate pathogenic species. This work provides better perspective effect on structure function seeps.

Язык: Английский

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Unveiling the deep-sea microplastic Odyssey: characteristics, distribution, and ecological implications in Pacific Ocean sediments

Journal of Hazardous Materials, Год журнала: 2025, Номер 489, С. 137537 - 137537

Опубликована: Фев. 12, 2025

Язык: Английский

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