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The Application of UVC Used in Synergy with Surface Material to Prevent Marine Biofouling. JOURNAL OF MARINE SCIENCE AND ENGINEERING 2021. [DOI: 10.3390/jmse9060662] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Biofouling is problematic for the shipping industry and can lead to functional and financial setbacks. One possible means of biofouling prevention is the use of ultraviolet-C (UVC) light. Previous studies have investigated UVC with marine coatings, but the synergistic effect with color and surface material, specifically reflectance, has yet to be determined. This study comprised three parts: UVC and color (red vs. white), UVC and reflectance (stainless steel vs. polycarbonate), and UVC and exposure intervals (weekly intervals and 10 min intervals). There was no variance in the biofouling communities for colored surfaces when exposed to 254 nm UVC. Reflectance studies demonstrated that the surface material plays a role in biofouling settlement. Stainless steel panels had significantly greater macrofouling settlement than polycarbonate, specifically among encrusting bryozoan, tubeworms, and tunicate communities. Panels of both surface materials exposed to indirect UVC significantly differed from controls and those exposed directly to UVC. Exposure intervals were also found to reduce biofouling settlement especially with long frequent intervals (i.e., 10 min/day). UVC can be utilized on various colored surfaces and different surface types, but the effectiveness in preventing biofouling is ultimately determined by the duration and frequency of UVC exposure.
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Wu RSS, Giesy JP, Richardson BJ, Leung KMY. In memory of Dr. Doris Au (29 April 1965-7 February 2020). MARINE POLLUTION BULLETIN 2021; 167:112278. [PMID: 33799147 DOI: 10.1016/j.marpolbul.2021.112278] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/15/2021] [Accepted: 03/15/2021] [Indexed: 06/12/2023]
Affiliation(s)
- Rudolf S S Wu
- Department of Science and Environmental Studies, The Education University of Hong Kong, Tai Po, New Territories, Hong Kong, China; State Key Laboratory of Marine Pollution, City University of Hong Kong, Tat Chee Avenue, Kowloon, Hong Kong, China
| | - John P Giesy
- State Key Laboratory of Marine Pollution, City University of Hong Kong, Tat Chee Avenue, Kowloon, Hong Kong, China; Department of Veterinary Biomedical Sciences, The Toxicology Centre at the University of Saskatchewan, Saskatchewan, Canada
| | - Bruce J Richardson
- State Key Laboratory of Marine Pollution, City University of Hong Kong, Tat Chee Avenue, Kowloon, Hong Kong, China
| | - Kenneth M Y Leung
- State Key Laboratory of Marine Pollution, City University of Hong Kong, Tat Chee Avenue, Kowloon, Hong Kong, China; Department of Chemistry, City University of Hong Kong, Tat Chee Avenue, Kowloon, Hong Kong, China.
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Sun Y, Zhang X, Zhang L, Huang Y, Yang Z, Montagnes D. UVB Radiation Suppresses Antigrazer Morphological Defense in Scenedesmus obliquus by Inhibiting Algal Growth and Carbohydrate-Regulated Gene Expression. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2020; 54:4495-4503. [PMID: 32108484 DOI: 10.1021/acs.est.0c00104] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Solar ultraviolet-B (UVB) radiation reaching the earth's surface is increasing due to stratospheric ozone depletion. How the elevated UVB affects the trophic interactions is critical for predicting the ecosystem functioning under this global-scale stressor. Usually, inducible defenses in phytoplankton stabilize community dynamics within aquatic environments. To assess the effects of elevated UVB on induced defense, we examined the changes in antigrazer colony formation in Scenedesmus obliquus under environmentally relevant UVB. S. obliquus exposed to Daphnia infochemicals consistently formed multicelled colonies, traits confirmed to be adaptive under predation risk. However, the suppressed photochemical activity and the metabolic cost from colony formation resulted in the severer reductions in algal growth by UVB under predation risk. The transcriptions of key enzyme-encoding genes, regulating the precursor synthesis during polysaccharide production, were also inhibited by UVB. Combination of the reduced production of daughter cells and the ability of daughter cells to remain attached, the antigrazing colony formation was interrupted, leading to the dominant morphs of algal population shifting from larger-sized colonies to smaller ones at raised UVB. The present study revealed that elevated UVB will not only reduce the phytoplankton growth but also increase their vulnerability to predation, probably leading to potential shifts in plankton food webs.
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Affiliation(s)
- Yunfei Sun
- Jiangsu Key Laboratory for Biodiversity and Biotechnology, School of Biological Sciences, Nanjing Normal University, 1 Wenyuan Road, Nanjing 210023, China
| | - Xingxing Zhang
- Jiangsu Key Laboratory for Biodiversity and Biotechnology, School of Biological Sciences, Nanjing Normal University, 1 Wenyuan Road, Nanjing 210023, China
| | - Lu Zhang
- Jiangsu Key Laboratory for Biodiversity and Biotechnology, School of Biological Sciences, Nanjing Normal University, 1 Wenyuan Road, Nanjing 210023, China
| | - Yuan Huang
- Jiangsu Key Laboratory for Biodiversity and Biotechnology, School of Biological Sciences, Nanjing Normal University, 1 Wenyuan Road, Nanjing 210023, China
| | - Zhou Yang
- Jiangsu Key Laboratory for Biodiversity and Biotechnology, School of Biological Sciences, Nanjing Normal University, 1 Wenyuan Road, Nanjing 210023, China
| | - David Montagnes
- Institute of Integrative Biology, Biosciences Building, University of Liverpool, Liverpool L69 7ZB, U.K
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Zhou L, Zhang SR, Yang JQ, Mao JY, Ren Y, Shan H, Xu Z, Zhou Y, Han ST. A UV damage-sensing nociceptive device for bionic applications. NANOSCALE 2020; 12:1484-1494. [PMID: 31909402 DOI: 10.1039/c9nr08872e] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Artificial limbs have been widely investigated in the past several decades, and multifuncional bionic limbs have already been constructed. However, due the lack of nociceptive systems, amputees still cannot feel ubiquitous noxious stimuli through bionic limbs. The construction of artificial nociceptors can bring bionic limbs closer to real flesh and bone. In daily life, UV irradiation is an invisible potential noxious stimulus to human skin and eyes. Furthermore, it is well known that the synthetic polymers widely used in bionic limbs can be degraded by UV radiation, accelerating their aging. Based on the above, UV damage-sensing nociceptors could be a feasible strategy to solve these existing problems. Here, azobenzene-functionalized gold nanoparticles (Azo-Au NPs) are embedded in insulating poly(methyl methacrylate) (PMMA) to construct a two-terminal memristor. With UV irradiation as a light damage medium, major nociceptive behaviors such as "threshold", "relaxation" and "sensitization" are successfully emulated, demonstrating its potential application as a nociceptive system.
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Affiliation(s)
- Li Zhou
- Institute of Microscale Optoelectronics (IMO), Shenzhen University, Shenzhen, 518060, China.
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MacKenzie AF, Maltby EA, Harper N, Bueley C, Olender D, Wyeth RC. Periodic ultraviolet-C illumination for marine sensor antifouling. BIOFOULING 2019; 35:483-493. [PMID: 31177838 DOI: 10.1080/08927014.2019.1616698] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/03/2018] [Revised: 04/11/2019] [Accepted: 05/04/2019] [Indexed: 05/22/2023]
Abstract
Ultraviolet light has intriguing potential as a marine antifoulant, targeting almost any species and applicable to almost any surface, while not accumulating in the environment. This study field-tested the effects of periodic ultraviolet-C illumination on marine macrofouling. Across four experiments, several UV illumination duty cycles were tested against controls with no illumination. Duty cycles between 1:2 (time with UV:total time per cycle) and 1:20 were all similarly effective, inhibiting almost all macrofouling at three different temperate Northeast Pacific and Northwest Atlantic sites. Susceptible taxa included barnacles, bryozoans, tunicates (colonial and solitary), and, to a slightly lesser extent, mussels. Duty cycles of 1:30 and 1:60 reduced but did not eliminate biofouling. Measurements of ultraviolet illumination on oceanographic sensors showed similar results. The results suggest further investigation of ultraviolet light as an antifoulant for marine sensors, including susceptibility of other taxa, optimizing illumination patterns, and exploring the potential for evolved resistance.
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Affiliation(s)
- Amelia F MacKenzie
- Department of Biology, St. Francis Xavier University , Antigonish , Nova Scotia , Canada
- Centre for Biofouling Research, St. Francis Xavier University , Antigonish , Nova Scotia , Canada
| | - Ella A Maltby
- Department of Biology, St. Francis Xavier University , Antigonish , Nova Scotia , Canada
- Centre for Biofouling Research, St. Francis Xavier University , Antigonish , Nova Scotia , Canada
- Bamfield Marine Sciences Centre , Bamfield , British Columbia , Canada
| | - Nick Harper
- AML Oceanographic , Sidney , British Columbia , Canada
| | - Chris Bueley
- AML Oceanographic , Sidney , British Columbia , Canada
| | | | - Russell C Wyeth
- Department of Biology, St. Francis Xavier University , Antigonish , Nova Scotia , Canada
- Centre for Biofouling Research, St. Francis Xavier University , Antigonish , Nova Scotia , Canada
- Bamfield Marine Sciences Centre , Bamfield , British Columbia , Canada
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Hylland K, Burgeot T, Martínez-Gómez C, Lang T, Robinson CD, Svavarsson J, Thain JE, Vethaak AD, Gubbins MJ. How can we quantify impacts of contaminants in marine ecosystems? The ICON project. MARINE ENVIRONMENTAL RESEARCH 2017; 124:2-10. [PMID: 26612182 DOI: 10.1016/j.marenvres.2015.11.006] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/10/2015] [Revised: 11/06/2015] [Accepted: 11/09/2015] [Indexed: 06/05/2023]
Abstract
An international workshop on marine integrated contaminant monitoring (ICON) was organised to test a framework on integrated environmental assessment and simultaneously assess the status of selected European marine areas. Biota and sediment were sampled in selected estuarine, inshore and offshore locations encompassing marine habitats from Iceland to the Spanish Mediterranean. The outcome of the ICON project is reported in this special issue as method-oriented papers addressing chemical analyses, PAH metabolites, oxidative stress, biotransformation, lysosomal membrane stability, genotoxicity, disease in fish, and sediment assessment, as well as papers assessing specific areas. This paper provides a background and introduction to the ICON project, by reviewing how effects of contaminants on marine organisms can be monitored and by describing strategies that have been employed to monitor and assess such effects. Through the ICON project we have demonstrated the use of an integrating framework and gleaned more knowledge than ever before in any single field campaign about the impacts contaminants may have in European marine areas.
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Affiliation(s)
- Ketil Hylland
- Department of Biosciences, University of Oslo, PO Box 1066, Blindern, 0316 Oslo, Norway.
| | - Thierry Burgeot
- IFREMER, Laboratory of Ecotoxicology, Rue de l'Ile d'Yeu, B.P. 21105, 44311 Nantes Cédex 03, France
| | - Concepción Martínez-Gómez
- Instituto Español de Oceanografía (IEO), Oceanographic Centre of Murcia, Varadero 1, PO Box 22, 30740 San Pedro del Pinatar, Murcia, Spain
| | - Thomas Lang
- Thünen Institute of Fisheries Ecology, Deichstr. 12, 27472 Cuxhaven, Germany
| | - Craig D Robinson
- Marine Scotland Science, Marine Laboratory, 375 Victoria Road, Aberdeen AB11 9DB, UK
| | - Jörundur Svavarsson
- University of Iceland, Askja - Natural Science Building, Sturlugata 7, 101 Reykjavík, Iceland
| | - John E Thain
- Cefas Weymouth Laboratory, Barrack Road, The Nothe, Weymouth, Dorset, DT4 8UB, UK
| | - A Dick Vethaak
- Deltares, Marine and Coastal Systems, P.O. Box 177, 2600 MH, Delft, The Netherlands; VU University Amsterdam, Amsterdam Global Change Institute, Institute for Environmental Studies, De Boelelaan 1085, 1081 HV Amsterdam, The Netherlands
| | - Matthew J Gubbins
- IFREMER, Laboratory of Ecotoxicology, Rue de l'Ile d'Yeu, B.P. 21105, 44311 Nantes Cédex 03, France
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Chen L, Lam JCW, Zhang X, Pan K, Guo C, Lam PKS, Wang W, Liu H, Qian PY. Relationship between metal and polybrominated diphenyl ether (PBDE) body burden and health risks in the barnacle Balanus amphitrite. MARINE POLLUTION BULLETIN 2015; 100:383-392. [PMID: 26320980 DOI: 10.1016/j.marpolbul.2015.08.020] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/29/2015] [Revised: 08/06/2015] [Accepted: 08/07/2015] [Indexed: 06/04/2023]
Abstract
In the present study, we employed the widespread and gregarious barnacle species Balanus amphitrite in a biomonitoring program to evaluate coastal pollution around three piers (i.e., Tso Wo Hang, Sai Kung and Hebe Haven) in Hong Kong. An integrated approach was used herein, combining both the chemical determination of contaminant concentrations, including metals and polybrominated diphenyl ethers (PBDEs), and a suite of biological responses across the entire barnacle lifecycle (i.e., adult, nauplius, cyprid and juvenile). The analytical results revealed a distinct geographical distribution of metals and PBDEs. Adult physiological processes and larval behaviors varied significantly among the three piers. Furthermore, a correlation analysis demonstrated a specific suite of biological responses towards metal and PBDE exposure, likely resulting from their distinct modes of action. Overall, the results of this study indicated that the combination of chemical and biological tests provided an integrated measure for the comprehensive assessment of marine pollution.
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Affiliation(s)
- Lianguo Chen
- Division of Life Science, Hong Kong University of Science and Technology, Clear Water Bay, Hong Kong, China
| | - James C W Lam
- State Key Laboratory in Marine Pollution, City University of Hong Kong, Tat Chee Avenue, Kowloon, Hong Kong, China; Research Centre for the Oceans and Human Health, Shenzhen Key Laboratory for Sustainable Use of Marine Biodiversity, City University of Hong Kong Shenzhen Research Institute Building, Shenzhen 518057, China
| | - Xiaohua Zhang
- State Key Laboratory in Marine Pollution, City University of Hong Kong, Tat Chee Avenue, Kowloon, Hong Kong, China; Research Centre for the Oceans and Human Health, Shenzhen Key Laboratory for Sustainable Use of Marine Biodiversity, City University of Hong Kong Shenzhen Research Institute Building, Shenzhen 518057, China
| | - Ke Pan
- Division of Life Science, Hong Kong University of Science and Technology, Clear Water Bay, Hong Kong, China
| | - Cui Guo
- Division of Life Science, Hong Kong University of Science and Technology, Clear Water Bay, Hong Kong, China
| | - Paul K S Lam
- State Key Laboratory in Marine Pollution, City University of Hong Kong, Tat Chee Avenue, Kowloon, Hong Kong, China; Research Centre for the Oceans and Human Health, Shenzhen Key Laboratory for Sustainable Use of Marine Biodiversity, City University of Hong Kong Shenzhen Research Institute Building, Shenzhen 518057, China; Department of Biology and Chemistry, City University of Hong Kong, Kowloon, Hong Kong, China
| | - Wenxiong Wang
- Division of Life Science, Hong Kong University of Science and Technology, Clear Water Bay, Hong Kong, China
| | - Hongbin Liu
- Division of Life Science, Hong Kong University of Science and Technology, Clear Water Bay, Hong Kong, China
| | - Pei-Yuan Qian
- Division of Life Science, Hong Kong University of Science and Technology, Clear Water Bay, Hong Kong, China.
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Matsumura K, Qian PY. Larval vision contributes to gregarious settlement in barnacles: adult red fluorescence as a possible visual signal. J Exp Biol 2014; 217:743-50. [DOI: 10.1242/jeb.096990] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
Gregarious settlement, an essential behavior for many barnacle species that can only reproduce by mating with a nearby barnacle, has long been thought to rely on larval ability to recognize chemical signals from conspecifics during settlement. However, the cyprid, the settlement stage larva in barnacles, has one pair of compound eyes that appear only at the late nauplius VI and cyprid stages, but the function(s) of these eyes remains unknown. Here we show that cyprids of the intertidal barnacle Balanus (=Amphibalanus) amphitrite can locate adult barnacles even in the absence of chemical cues, and prefer to settle around them probably via larval sense of vision. We also show that the cyprids can discriminate color and preferred to settle on red surfaces. Moreover, we found that shells of adult B. amphitrite emit red auto-fluorescence and the adult extracts with the fluorescence as a visual signal attracted cyprid larvae to settle around it. We propose that the perception of specific visual signals can be involved in behavior of zooplankton including marine invertebrate larvae, and that barnacle auto-fluorescence may be a specific signal involved in gregarious larval settlement.
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Affiliation(s)
- Kiyotaka Matsumura
- KAUST Global Collaborative Research Program, Division of Life Science, The Hong Kong University of Science and Technology, Hong Kong
| | - Pei-Yuan Qian
- KAUST Global Collaborative Research Program, Division of Life Science, The Hong Kong University of Science and Technology, Hong Kong
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Mulberry WE, Stavn RH. Extracting mineral effects on ultraviolet penetration and its effects in coastal and inland waters: a Monte Carlo study. APPLIED OPTICS 2011; 50:6409-6423. [PMID: 22193116 DOI: 10.1364/ao.50.006409] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
A factor significantly affecting the ultraviolet (UV) radiation's interactions with the aquatic environment is the concentration of suspended sediment. We utilize data on UV penetration, absorption, and scattering in Lake Biwa, Japan, reported by Belzile et al. [Limnol. Oceanogr. 47, 95 (2002)], to drive Monte Carlo simulations of UV penetration. We generated Monte Carlo models (2 billion photons per simulation) of four stations reported by Belzile et al.: two low sediment stations and two high sediment stations. New modes are proposed for analyzing UV penetration and dosage factors for aquatic organisms in sediment dominated aquatic environments.
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Affiliation(s)
- William E Mulberry
- Biology Department, The University of North Carolina at Greensboro, P.O. Box 26170, Greensboro, North Carolina 27402, USA
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Patil JS, Kimoto H, Kimoto T, Saino T. Ultraviolet radiation (UV-C): a potential tool for the control of biofouling on marine optical instruments. BIOFOULING 2007; 23:215-30. [PMID: 17653932 DOI: 10.1080/08927010701275598] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/16/2023]
Abstract
In an effort to develop a tool for controlling biofouling of marine optical instruments, the efficiency of ultraviolet radiation (UVR - 254 nm) in preventing biofouling was evaluated by conducting in situ experiments at different intensities (14.7, 9.6, 7.3 Wm(-2)) and exposure times (continuous, on for 30, 15, 5, 1 min h(-1)) using glass as test coupons. Although there was significant seasonal variation in environmental conditions and phytoplankton composition among each experiment, the amount of biofilm relative to the internal control demonstrated consistent trends. The efficiency of UVR in preventing biofouling increased significantly with increase in intensity and exposure time. UVR was effective even in reducing the population of microfoulers from already developed biofilms. UVR exposure for 30 min h(-1) at all intensities as well as for 5 and 15 min h(-1) at the highest intensity was found to be most effective. It was observed that UVR dose is not the sole determinant of UVR effectiveness. The reduction in transmission level of the UVR treated coupons was < 5% irrespective of exposure time except for 1 min h(-1). These results reveal that UV-C radiation can be used as a potential biofouling control tool for optical instruments.
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Affiliation(s)
- Jagadish S Patil
- Hydrospheric Atmospheric Research Center, Nagoya University, Nagoya, Japan.
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