Abstract：
:Aerial and underwater imaging is being widely used for monitoring litter objects found at the sea surface, beaches and seafloor. However, litter monitoring requires a considerable amount of human effort, indicating the need for automatic and cost-effective approaches. Here we present an object detection approach that automatically detects seafloor marine litter in a real-world environment using a Region-based Convolution Neural Network. The neural network is trained on an imagery with 11 manually annotated litter categories and then evaluated on an independent part of the dataset, attaining a mean average precision score of 62%. The presence of other background features in the imagery (e.g., algae, seagrass, scattered boulders) resulted to higher number of predicted litter items compare to the observed ones. The results of the study are encouraging and suggest that deep learning has the potential to become a significant tool for automatically recognizing seafloor litter in surveys, accomplishing continuous and precise litter monitoring.
journal_name
Mar Pollut Bulljournal_title
Marine pollution bulletinauthors
Politikos DV,Fakiris E,Davvetas A,Klampanos IA,Papatheodorou Gdoi
10.1016/j.marpolbul.2021.111974subject
Has Abstractpub_date
2021-01-20 00:00:00pages
111974eissn
0025-326Xissn
1879-3363pii
S0025-326X(21)00008-4journal_volume
164pub_type
杂志文章abstract：:Studies documenting the effects of land-derived suspended particulate matter (SPM, i.e., particulate organic matter and mineral sediment) on marine ecosystems are typically disconnected from terrestrial studies that determine their origin, transport and fate. This study reviews sources, transport, transformations, fat...
journal_title：Marine pollution bulletin
pub_type： 杂志文章,评审
doi：10.1016/j.marpolbul.2018.08.002
更新日期：2018-10-01 00:00:00
abstract：:The impact of marine ecotourism on reef predators is poorly understood and there is growing concern that overcrowding in Marine Protected Areas (MPAs) may disturb the species that these areas were established to protect. To improve our understanding of this issue, we used acoustic telemetry to examine the relationship...
journal_title：Marine pollution bulletin
pub_type： 杂志文章
doi：10.1016/j.marpolbul.2017.06.032
更新日期：2017-08-15 00:00:00
abstract：:Tropical seagrass decline and recovery from severe storm impacts was assessed via quarterly measurements of seagrass biomass, species composition and experimental investigations of recovery in north Queensland. Shallow and deep seagrass meadows suffered major declines. Significant recovery in the two years following l...
journal_title：Marine pollution bulletin
pub_type： 杂志文章
doi：10.1016/j.marpolbul.2014.02.013
更新日期：2014-06-30 00:00:00
abstract：:Adverse impacts of drilling discharges on marine benthic environments have been observed since the advent of offshore drilling operations for exploration and production of oil and gas. This study utilizes a marine sediment model based on a system of equations that has been developed earlier to assess environmental imp...
journal_title：Marine pollution bulletin
pub_type： 杂志文章
doi：10.1016/j.marpolbul.2019.05.039
更新日期：2019-08-01 00:00:00
abstract：:In the last few years extreme weather events, including changes to storm frequency and intensity, have increased across all continents. In this note we assessed, for the first time in the Mediterranean Sea, the impact of a violent storm and consequent flood on offshore water contamination and benthic community along t...
journal_title：Marine pollution bulletin
pub_type： 杂志文章
doi：10.1016/j.marpolbul.2019.02.005
更新日期：2019-03-01 00:00:00
abstract：:The mechanism of fish kill events is not thoroughly understood in Kuwait Bay (KB). However, it is obvious that fish kill events have a close relationship with hypoxia due to some biogeochemical processes. Hydrodynamics controls the dissolved oxygen (DO) concentration that occurs within various spatial and temporal sca...
journal_title：Marine pollution bulletin
pub_type： 杂志文章
doi：10.1016/j.marpolbul.2019.04.067
更新日期：2019-07-01 00:00:00
abstract：:The concentrations of 7 heavy metals (Cu, Pb, Zn, Cr, Cd, As and Hg) were analysed in 12 sediment cores collected from 6 typical intertidal zones in northern China. The data reveal that the environmental quality of the northern Chinese intertidal environment has gradually improved and that the concentrations of Cu, Pb...
journal_title：Marine pollution bulletin
pub_type： 杂志文章
doi：10.1016/j.marpolbul.2020.111442
更新日期：2020-10-01 00:00:00
abstract：:The contents of Cu, Pb, Zn, Cd, Cr, Hg and As in the surface sediments of over 668 sites were monitored in a comprehensive program for assessing the degree of heavy-metal pollution and adverse biological effects of the offshore sediments in China. The contamination factor and geoaccumulation index indicated that As an...
journal_title：Marine pollution bulletin
pub_type： 杂志文章
doi：10.1016/j.marpolbul.2016.08.079
更新日期：2016-12-15 00:00:00
abstract：:Chemical pollution was monitored and assessed along the Swedish west coast. 62 of 172 analyzed organic chemicals were detected in the water phase of at least one of five monitored sites. A Concentration Addition based screening-level risk assessment indicates that all sites are put at risk from chemical contamination,...
journal_title：Marine pollution bulletin
pub_type： 杂志文章
doi：10.1016/j.marpolbul.2017.06.082
更新日期：2017-09-15 00:00:00
abstract：:In this study, a system was established to perform an initial environmental risk assessment of hazardous and noxious substances (HNS) spill accidents. Initial environmental risk assessment was performed using exposure and hazard assessments. An integrated hydrodynamic and chemical fate model was used to predict HNS co...
journal_title：Marine pollution bulletin
pub_type： 杂志文章
doi：10.1016/j.marpolbul.2018.12.044
更新日期：2019-02-01 00:00:00
abstract：:Fibropapillomatosis (FP) poses a significant threat to the conservation of green sea turtles (Chelonia mydas). Polycyclic aromatic hydrocarbons-PAHs are considered mutagenic, carcinogenic and toxic, and can act as cofactor of this disease. In order to evaluate possible differences between green sea turtles with and wi...
journal_title：Marine pollution bulletin
pub_type： 杂志文章
doi：10.1016/j.marpolbul.2018.03.021
更新日期：2018-05-01 00:00:00
abstract：:Research into the methodological development of alternative systems of sustainability measures is recent. In understanding sustainable development in a multi-dimensional sense, one of the most significant advances was the construction of Synthetic Indexes, applicable to different spatial spheres or to organisations, b...
journal_title：Marine pollution bulletin
pub_type： 杂志文章
doi：10.1016/j.marpolbul.2016.09.022
更新日期：2016-12-15 00:00:00
abstract：:This article investigates sediments collected from the banks of the Subaé River located in Todos os Santos Bay in the state of Bahia, Brazil, in 2018, twenty-five years after the closing of a former lead alloy processing plant. Ten sediment samples were collected at different points of the course of the river and its ...
journal_title：Marine pollution bulletin
pub_type： 杂志文章
doi：10.1016/j.marpolbul.2020.111146
更新日期：2020-06-01 00:00:00
abstract：:Small-scale experiments performed at SINTEF, Norway in 2011-12 led to the development of a modified Weber scaling algorithm. The algorithm predicts initial oil droplet sizes (d50) from a subsea oil and gas blowout. It was quickly implemented in a high number of operational oil spill models used to predict fate and eff...
journal_title：Marine pollution bulletin
pub_type： 杂志文章
doi：10.1016/j.marpolbul.2020.111934
更新日期：2021-01-04 00:00:00
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journal_title：Marine pollution bulletin
pub_type： 杂志文章
doi：10.1016/s0025-326x(00)00169-7
更新日期：2001-05-01 00:00:00
abstract：:Seabirds are amongst the most affected organisms by plastic pollution worldwide. Ingestion of marine debris has been reported in at least 122 species, and owing to the increasing global production and persistence of these anthropogenic materials within the marine environment, it is expected to be a growing problem to ...
journal_title：Marine pollution bulletin
pub_type： 杂志文章
doi：10.1016/j.marpolbul.2017.01.073
更新日期：2017-04-15 00:00:00
abstract：:Oil slicks were detected using satellite Synthetic Aperture Radar (SAR) images in 2011. We investigated potential origins and regional and seasonal features of oil slick in the Bohai Sea. Distance between oil slicks and potential origins (ships, seaports, and oil exploitation platforms) and the angle at which oil slic...
journal_title：Marine pollution bulletin
pub_type： 杂志文章
doi：10.1016/j.marpolbul.2016.03.014
更新日期：2016-05-15 00:00:00
abstract：:As nitrogen entering coastal waters continues to be an issue, much attention has been generated to identify potential options that may help alleviate this stressor to estuaries, including the propagation of bivalves to remove excess nitrogen. Oysters (Crassostrea virginica) and quahogs (Mercenaria mercenaria) from num...
journal_title：Marine pollution bulletin
pub_type： 杂志文章
doi：10.1016/j.marpolbul.2016.12.072
更新日期：2017-03-15 00:00:00
abstract：:Most land-based debris enters the ocean via rivers during the rainy season. The Nakdong River system, the largest river entering the South Sea of Korea, discharges 3000 tons of debris per year. We deployed small tracking buoys with satellite location transmitters to monitor river-borne floating debris movement. The bu...
journal_title：Marine pollution bulletin
pub_type： 杂志文章
doi：10.1016/j.marpolbul.2014.08.031
更新日期：2014-11-15 00:00:00
abstract：:A suite of biomarkers were measured in barramundi (Lates calcarifer) from five North Queensland estuaries along a perceived pollution gradient. The biomarkers selected were 7-ethoxyresorufin-O-deethylase (EROD), cytochrome P450, fluorescent aromatic compounds (FACs), DNA integrity, RNA:DNA ratio, cholinesterase activi...
journal_title：Marine pollution bulletin
pub_type： 杂志文章
doi：10.1016/j.marpolbul.2007.06.004
更新日期：2007-10-01 00:00:00
abstract：:The term "Unresolved Complex Mixture" (UCM) has been used extensively for decades to describe a gas chromatographic characteristic indicative of the presence of fossil fuel hydrocarbons (mainly petroleum hydrocarbons) in hydrocarbons isolated from aquatic samples. We chronicle the origin of the term. While it is still...
journal_title：Marine pollution bulletin
pub_type： 杂志文章
doi：10.1016/j.marpolbul.2015.04.039
更新日期：2015-07-15 00:00:00
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journal_title：Marine pollution bulletin
pub_type： 杂志文章
doi：10.1016/j.marpolbul.2017.06.084
更新日期：2017-11-15 00:00:00
abstract：:Biological criteria were developed to assess water quality in mesohaline and polyhaline estuarine waters in North Carolina. The criteria used a combination of three metrics: a new 'Hilsenhoff-type' biotic index incorporating the sensitivity to pollution of each taxon and its relative abundance, total number of taxa, a...
journal_title：Marine pollution bulletin
pub_type： 杂志文章
doi：10.1016/s0025-326x(00)00086-2
更新日期：2001-01-01 00:00:00
abstract：:Large seaweed cultivation has proven an effective means to inhibit harmful microalgae at experimental scales and battle eutrophication in Chinese coastal waters, but essentially there is a lack of field-scale studies to explore the underlying mechanism. Here we present a 1.5-year-long time series of particulate organi...
journal_title：Marine pollution bulletin
pub_type： 杂志文章
doi：10.1016/j.marpolbul.2018.05.026
更新日期：2018-08-01 00:00:00
abstract：:In order to evaluate the health status of fish inhabiting Port Phillip Bay, Australia, southern sand flathead (Platycephalus hassensis, N = 133) were collected at six stations throughout the Bay. Fish had a similar serum sorbitol dehydrogenase (SDH) activity level (p = 0.12), indicating that they were not experiencing...
journal_title：Marine pollution bulletin
pub_type： 杂志文章
doi：10.1016/s0025-326x(01)00245-4
更新日期：2002-03-01 00:00:00
abstract：:The objective of this study is to assess the impact of food production on river export of nutrients to the coastal waters of the Bay of Bengal in the past (1970 and 2000) and the future (2030 and 2050), and the associated potential for coastal eutrophication. We model nutrient export from land to sea, using the Global...
journal_title：Marine pollution bulletin
pub_type： 杂志文章
doi：10.1016/j.marpolbul.2014.01.017
更新日期：2014-03-15 00:00:00
abstract：:An assessment of hazard stemming from operational oil ship discharges in the Southern Adriatic and Northern Ionian (SANI) Seas is presented. The methodology integrates ship traffic data, the fate and transport oil spill model MEDSLIK-II, coupled with the Mediterranean Forecasting System (MFS) ocean currents, sea surfa...
journal_title：Marine pollution bulletin
pub_type： 杂志文章
doi：10.1016/j.marpolbul.2014.10.039
更新日期：2015-01-15 00:00:00
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journal_title：Marine pollution bulletin
pub_type： 杂志文章
doi：10.1016/j.marpolbul.2017.05.041
更新日期：2017-08-15 00:00:00
abstract：:Sediments in eight types of mangroves were sampled in the Leizhou Peninsula. Heavy metals were analyzed to investigate the effects on metal distribution of mangrove communities, to evaluate contamination levels, identify sources and relationships between the two. Results showed that mangrove communities have effects o...
journal_title：Marine pollution bulletin
pub_type： 杂志文章
doi：10.1016/j.marpolbul.2015.08.046
更新日期：2015-11-15 00:00:00
abstract：:Microbial responses to the addition of oil with or without a chemical dispersant were examined in mesocosm and microcosm experiments by using denaturing gradient gel electrophoresis of bacterial ribosomal DNA and direct cell counting. When a water-soluble fraction of oil was added to seawater, increases in cell densit...
journal_title：Marine pollution bulletin
pub_type： 杂志文章
doi：10.1016/j.marpolbul.2005.08.015
更新日期：2006-01-01 00:00:00
