To mine or not to mine the deep seabed? DOI Creative Commons
Ida Soltvedt Hvinden

MAST. Maritime studies/Maritime studies, Год журнала: 2024, Номер 23(1)

Опубликована: Фев. 24, 2024

Abstract Several studies have noted that the International Seabed Authority (ISA) scores low on public participation. However, none studied efforts of non-governmental organizations to exert influence ISA’s rulemaking processes. I examine how environmental NGOs and private mining contractors attempt sway one narrow, but existential, part draft exploitation regulations between 2014 2019: definition “serious harm” marine environment. Although appear been more successful in influencing definition, interests may still prevail. Despite NGOs, term remains largely undefined, allowing for subjectivity flexibility interpretation. This challenge is exacerbated when combined with current institutional weaknesses limited scientific expertise within ISA. Ongoing negotiations recent developments may, however, alter this outcome.

Язык: Английский

Water–air acoustic communication based on broadband impedance matching DOI Open Access
Ping Zhou, Han Jia,

Yafeng Bi

и другие.

Applied Physics Letters, Год журнала: 2023, Номер 123(19)

Опубликована: Ноя. 6, 2023

Efficient acoustic communication across the water–air interface has always been expected in field of ocean exploration. However, existing research works are mainly concentrated on narrow-band transmission based resonance, which greatly limits capacity and efficiency. Here, we combined air-based water-based metafluids to realize an exponential gradient impedance matching layer for broadband sound transmission. By cooperatively adjusting velocity thickness layers, modulated required parameters each into a reasonable range, can be conveniently achieved by proposed metafluids. A sample was constructed validated water tank. Experimental results show that achieve average energy enhancement above 16.7 dB from 880 1760 Hz interface. scene further experimentally demonstrated through transmitting multicolor picture air water, shows extremely high accuracy. Our work is promising more applications water-air opens avenue design implementation extreme case.

Язык: Английский

Процитировано

10
A global test of MPA spillover benefits to recreational fisheries DOI Creative Commons
Simone Franceschini, John Lynham, Elizabeth M. P. Madin

и другие.

Science Advances, Год журнала: 2024, Номер 10(29)

Опубликована: Июль 19, 2024

Marine protected areas (MPAs) have been identified as one of the most effective tools to halt marine biodiversity loss. However, conflicting evidence from disparate, small-scale studies obfuscate a cohesive global picture role that MPAs can play in enhancing local fisheries through spillover benefits. We conducted analysis trophy-size fish catches proxy for occurring outside fully MPAs, focusing on time series recreational angling catch records. show accumulation fishing records accelerates close (compared reference areas) and this effect grows stronger over time. Our results provide standardized assessment benefits anglers.

Язык: Английский

Процитировано

4
Deep-sea mining and its risks for social-ecological systems: Insights from simulation-based analyses DOI Creative Commons
Lubna Alam, Kumara Perumal Pradhoshini,

R. Flint

и другие.

PLoS ONE, Год журнала: 2025, Номер 20(3), С. e0320888 - e0320888

Опубликована: Март 28, 2025

The pros and cons of deep-sea mining (DSM) is currently hotly debated. Here, we assess the environmental, economic, social risks DSM by comparing scenarios with without involvement. “Without” scenario relies solely on land-based circular economy solutions, while “With” incorporates alongside strategies, highlighting dangers heavy dependence. Through literature review expert interviews, our study identifies key risk indicators across dimensions, forming a comprehensive assessment framework. application qualitative data fuzzy cognitive mapping, analysis reveals that environmental factors are most influential (centrality: 1.46), followed (1.32) economic (1.0) factors. In “With DSM” scenario, all show increased risks, factors, particularly “coastal state vulnerability,” experiencing 13% rise. Social including “violation law,” “participatory rights,” “lack effective control,” “degraded reputation,” increase 8–11%, such as “contractual violations,” special provision,” “knowledge gap assistance fund” disputes among “multiple stakeholders,” see an 11% uptick. Our results suggest poses to marine ecosystems likely too significant justify its pursuit advocates for solutions viable alternatives mitigate social, risks. We recommend policies should promote practices through resource recovery incentives.

Язык: Английский

Процитировано

0
Noise from deep-sea mining in the Clarion-Clipperton Zone, Pacific Ocean will impact a broad range of marine taxa DOI
Rob Williams, Kieran Cox, Diva J. Amon

и другие.

Marine Pollution Bulletin, Год журнала: 2025, Номер 218, С. 118135 - 118135

Опубликована: Май 16, 2025

Язык: Английский

Процитировано

0
A stakeholder perspective on the drivers and barriers influencing the emergence of deep-sea mining DOI Creative Commons
Manuel Bellanger, Pierre Scemama, Denis Bailly

и другие.

Resources Policy, Год журнала: 2025, Номер 105, С. 105623 - 105623

Опубликована: Май 15, 2025

Язык: Английский

Процитировано

0
Development of deep-sea mining and its environmental impacts: a review DOI Creative Commons
Wen Yao,

Chi Tian,

Yao Teng

и другие.

Frontiers in Marine Science, Год журнала: 2025, Номер 12

Опубликована: Май 26, 2025

With the increasing demand for mineral resources and continuous depletion of terrestrial deposits, deep-sea mining has garnered significant attention from governments, industries, research institutions. However, current technologies remain incompletely developed, their environmental impacts cannot be overlooked. This review presents a brief introduction to three primary found in deep sea relative system, along with potential risks. As benthic ecosystem is particularly vulnerable, on environment each phase should monitored controlled. The movement operation seafloor vehicles generate both direct indirect impacts, including seabed destruction plume generation. These effects pose threats organisms alter environment. Finally, we present future perspectives insights subsequent industrialization mining.

Язык: Английский

Процитировано

0
Embracing a new era of deep-sea mining: Research progress and prospects DOI
Chang Wang,

Xueling Shu,

Siyuan Zhou

и другие.

Marine Policy, Год журнала: 2025, Номер 180, С. 106778 - 106778

Опубликована: Май 28, 2025

Язык: Английский

Процитировано

0
Evaluating deep-sea communities' susceptibility to mining plumes using shallow-water data DOI Creative Commons
Jesse van der Grient, Jeffrey C. Drazen

The Science of The Total Environment, Год журнала: 2022, Номер 852, С. 158162 - 158162

Опубликована: Авг. 18, 2022

Increased suspended sediment concentrations (SSC) are a major stressor across aquatic habitats. Here, the literature was synthesized to show that animal responses increases in relative SSC (test concentration/natural background concentration) were similar type and negative different shallow-water (marine, estuarine, freshwater) Further, sensitivities habitats based on occur starting at low all despite differences natural SSC. Based upon these similarities sensitivities, deep-sea sensitivity values for acute exposure increased SSC, where empirical data almost non-existent, estimated. Because of deep sea environments, very small absolute could result effects. How methods results can be used inform regulatory thresholds discussed. large variability shallow water datasets between habitats, specific needed verify estimates improve their precision. Following precautionary principle presented here, it is recommended threshold plume impacts set close levels.

Язык: Английский

Процитировано

14
Effects of Music and White Noise Exposure on the Gut Microbiota, Oxidative Stress, and Immune-Related Gene Expression of Mice DOI Creative Commons
Zhenyu Zhang,

Y. J. Jan Wu,

Shizheng Zhou

и другие.

Microorganisms, Год журнала: 2023, Номер 11(9), С. 2272 - 2272

Опубликована: Сен. 10, 2023

The microbiota in gastrointestinal tracts is recognized to play a pivotal role the health of their hosts. Music and noise are prevalent environmental factors human society animal production reported impact welfare physiological conditions; however, information on relationship between microbiota, status, sound limited. This study investigated music white exposure mice through 16s rRNA gene sequencing, enzyme assay, qPCR. results demonstrate that induced oxidative stress animals by decreasing serum SOD GSH-PX activity while increasing LDH MDA levels (p < 0.05). Conversely, no was observed treatment group. relative expression IFN-γ IL-1β decreased group compared control groups. amplicon sequencing revealed Bacteroidetes, Firmicutes, Verrucomicrobia, Proteobacteria were dominant among all Furthermore, proportion Firmicutes increased but In conclusion, has detrimental impacts gut antioxidant activity, immunity mice, potentially beneficial.

Язык: Английский

Процитировано

8
Mesopelagic Fish Traits: Functions and Trade‐Offs DOI Creative Commons
Henrike Andresen, Leandro Nolé Eduardo, M. Pilar Olivar

и другие.

Fish and Fisheries, Год журнала: 2024, Номер 26(1), С. 83 - 103

Опубликована: Ноя. 1, 2024

ABSTRACT Fishes inhabiting the mesopelagic zone of world's oceans are estimated to account for majority fish biomass. They have recently attracted new attention because they part biological carbon pump and been reconsidered as a contribution food security. Hence, there is an urgent need understand how environmental conditions species interactions shape their assemblages, contribute functioning marine ecosystems. Trait‐based approaches valuable addressing these types questions. However, biology ecology fishes understudied compared in shallow epipelagic waters. Here, we synthesise existing knowledge traits relate them role survival, feeding growth reproduction, key functions that fitness. Vertical migrations, specialised vision use bioluminescence among most striking adaptations realm. Many interrelated result trade‐offs, which may help selection pressures. While morphological straightforward observe, major gaps exist require frequent sampling, assessment under experimental or age determination. The unique be included management strategies well fundamental research habitat.

Язык: Английский

Процитировано

3