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Li Y, Zhang Y, Zhang H, Xu M, Cao Q, Wang Y. Energy strategy alteration, rather than toxicity itself, interferes with the population fluctuation of Brachionus plicatilis exposed to water-accommodated fractions (WAFs) of crude oil. AQUATIC TOXICOLOGY (AMSTERDAM, NETHERLANDS) 2024; 273:106984. [PMID: 38901220 DOI: 10.1016/j.aquatox.2024.106984] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/19/2023] [Revised: 05/21/2024] [Accepted: 05/30/2024] [Indexed: 06/22/2024]
Abstract
Oil spills are reported to have conflicting impacts of either injury or resilience on zooplankton communities, and physiological plasticity is speculated to be the possible causative factor. But how? An explanation was sought by exposing the marine rotifer Brachionus plicatilis to a series of water-accommodated fractions (WAFs) of crude oil under controlled laboratory conditions, and population dynamics, which is the core issue for zooplankton facing external stress, were analyzed. The total hydrocarbon concentration of WAFs was quickly degraded from a concentration of 5.0 mg L-1 to half within 24 h and then remained stable. No acute lethality was observed; only motion inhibition was observed in the group treated with 10 %, 50 % and 100 % WAFs, which occurred simultaneously with inhibition of feeding and filtration. However, sublethal exposure to the WAFs concentration series presented stimulation impacts on reproduction and even the population of B. plicatilis. The negative correlation between motion and reproduction seemed to indicate that a shift in the distribution of individual energy toward reproduction rather than motion resulted in increased reproduction after exposure to WAFs. More evidence from transmission electron microscopy (TEM) revealed ultrastructural impairment in both the ovaries and cilia in each treated group, and imbalance in mitochondrial numbers was one of the distinct features of alteration. WAFs stress may alter the energy utilization and storage paradigm, as indicated by the significant elevation in glycogen and the significant decrease in lipid content after WAFs exposure. Further evidence from metabolomics analysis showed that WAFs stress increased the level of lipid metabolism and inhibited some of the pathways in glucose metabolism. Sublethal acute toxicity was observed only in the first 24 h with WAFs exposure, and an energy strategy consisting of changes in the utilization and storage paradigm and reallocation is responsible for the population resilience of B. plicatilis during oil spills.
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Affiliation(s)
- Yuanyuan Li
- College of Marine Life Sciences, Ocean University of China, Qingdao 266003, China; Laboratory for Marine Ecology and Environmental Science, Qingdao Marine Science and Technology Center, Qingdao 266237, China
| | - Yaya Zhang
- College of Marine Life Sciences, Ocean University of China, Qingdao 266003, China; Laboratory for Marine Ecology and Environmental Science, Qingdao Marine Science and Technology Center, Qingdao 266237, China
| | - Hui Zhang
- College of Marine Life Sciences, Ocean University of China, Qingdao 266003, China
| | - Mengxue Xu
- Marine Science Research Institute of Shandong Province, Qingdao, China; Qingdao Key Laboratory of Coastal Ecological Restoration and Security, Qingdao Shandong, China
| | - Qiyue Cao
- College of Marine Life Sciences, Ocean University of China, Qingdao 266003, China
| | - You Wang
- College of Marine Life Sciences, Ocean University of China, Qingdao 266003, China; Laboratory for Marine Ecology and Environmental Science, Qingdao Marine Science and Technology Center, Qingdao 266237, China.
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Lares BA, Vignatti AM, Echaniz SA, Cabrera GC, Jofré FC, Gutierrez MF. Sensitivity of Daphnia spinulata Birabén, 1917 to glyphosate at different salinity levels. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2024; 31:35308-35319. [PMID: 38727975 DOI: 10.1007/s11356-024-33586-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/08/2023] [Accepted: 05/02/2024] [Indexed: 05/30/2024]
Abstract
Daphnia spinulata Birabén, 1917 is an endemic cladoceran species, frequent in the zooplankton communities of the shallow lakes of the Pampean region of Argentina. These lakes have varying salinity levels and, being located in agricultural areas, are frequently subject to pesticide pollution. This study aimed to determine the effects of the herbicide glyphosate (Panzer Gold®) in combination with different salinity levels on the biological parameters of D. spinulata and its recovery ability after a short exposure. Three types of assays were performed: an acute toxicity test, a chronic assessment to determine survival, growth and reproduction, and recovery assays under optimal salinity conditions (1 g L-1). The LC50-48 h of glyphosate was 7.5 mg L-1 (CL 3.15 to 11.72). Longevity and the number of offspring and clutches were significantly reduced due to the combined exposure of glyphosate and increased salinity. The timing of the first offspring did not recover after glyphosate exposure. Our results reveal that D. spinulata is sensitive to the herbicide Panzer Gold® at concentrations well below those indicated in the safety data sheet of this commercial formulation, which causes stronger negative effects in conditions of higher salinity. Further research is needed to shed light on the sensitivity of this cladoceran to glyphosate and its variability under other interactive stress factors.
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Affiliation(s)
- Betsabé Ailén Lares
- Facultad de Ciencias Exactas y Naturales, Universidad Nacional de La Pampa, Santa Rosa, La Pampa, Argentina.
- Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Santa Rosa, La Pampa, Argentina.
| | - Alicia María Vignatti
- Facultad de Ciencias Exactas y Naturales, Universidad Nacional de La Pampa, Santa Rosa, La Pampa, Argentina
| | - Santiago Andrés Echaniz
- Facultad de Ciencias Exactas y Naturales, Universidad Nacional de La Pampa, Santa Rosa, La Pampa, Argentina
| | - Gabriela Cecilia Cabrera
- Facultad de Ciencias Exactas y Naturales, Universidad Nacional de La Pampa, Santa Rosa, La Pampa, Argentina
| | - Florencia Cora Jofré
- Facultad de Ciencias Exactas y Naturales, Universidad Nacional de La Pampa, Santa Rosa, La Pampa, Argentina
- Instituto de Ciencias de La Tierra y Ambientales de La Pampa (CONICET-UNLPam), Santa Rosa, La Pampa, Argentina
| | - María Florencia Gutierrez
- Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Santa Rosa, La Pampa, Argentina
- Instituto Nacional de Limnología, CONICET-UNL, Paraje El Pozo, Ciudad Universitaria UNL, Santa Fe, Argentina
- Escuela Superior de Sanidad "Dr. Ramón Carrillo" (FBCB-UNL), Ciudad Universitaria, Santa Fe, Argentina
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3
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Albarico FPJB, Lim YC, Chen CF, Wang MH, Chen CW, Dong CD. Polycyclic aromatic hydrocarbons in 55-120 μm phytoplankton. MARINE POLLUTION BULLETIN 2024; 198:115860. [PMID: 38039576 DOI: 10.1016/j.marpolbul.2023.115860] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/10/2023] [Revised: 11/23/2023] [Accepted: 11/25/2023] [Indexed: 12/03/2023]
Abstract
A baseline study was undertaken on polycyclic aromatic hydrocarbons (PAHs) in phytoplankton. Plankton samples from six stations (duplicates) in Kaohsiung Harbor (KH), Taiwan along with a phytoplankton control sample afar from the harbor, were collected. We applied size-fractionation to isolate phytoplankton (55-120 μm), followed by sedimentation and centrifugation to remove abiogenic particulates. The phytoplankton was freeze-dried, extracted with acetone: n-hexane (1:1, v/v), and analyzed using GC-MS. ΣPAHs in phytoplankton ranged between 5204 and 28,903 ng/g dry weight (mean: 12,150 ng/g). The ΣPAHs in KH were >7 times than the control site (C1: 3972 ng/g). Cluster analysis showed spatial gradients (northern < southern KH). Accumulated PAHs in phytoplankton were from petrogenic (fishing ports and ships) and pyrogenic (river outflows), dominated by lower-ring PAHs, likely due to their higher bioavailability in the dissolved phase. We present a practical phytoplankton isolation technique for more accurate phytoplankton PAH concentrations with insights into their distribution and sources.
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Affiliation(s)
- Frank Paolo Jay B Albarico
- Institute of Aquatic Science and Technology, National Kaohsiung University of Science and Technology, Kaohsiung City 81157, Taiwan; Department of Marine Environmental Engineering, National Kaohsiung University of Science and Technology, Kaohsiung City 81157, Taiwan; College of Fisheries and Allied Sciences, Northern Negros State College of Science and Technology, Sagay City 6122, Philippines
| | - Yee Cheng Lim
- Department of Marine Environmental Engineering, National Kaohsiung University of Science and Technology, Kaohsiung City 81157, Taiwan
| | - Chih-Feng Chen
- Department of Marine Environmental Engineering, National Kaohsiung University of Science and Technology, Kaohsiung City 81157, Taiwan
| | - Ming-Huang Wang
- Department of Marine Environmental Engineering, National Kaohsiung University of Science and Technology, Kaohsiung City 81157, Taiwan
| | - Chiu-Wen Chen
- Department of Marine Environmental Engineering, National Kaohsiung University of Science and Technology, Kaohsiung City 81157, Taiwan.
| | - Cheng-Di Dong
- Institute of Aquatic Science and Technology, National Kaohsiung University of Science and Technology, Kaohsiung City 81157, Taiwan; Department of Marine Environmental Engineering, National Kaohsiung University of Science and Technology, Kaohsiung City 81157, Taiwan.
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4
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Ferreira NM, Coutinho R, de Oliveira LS. Emerging studies on oil pollution biomonitoring: A systematic review. MARINE POLLUTION BULLETIN 2023; 192:115081. [PMID: 37236096 DOI: 10.1016/j.marpolbul.2023.115081] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/17/2022] [Revised: 05/15/2023] [Accepted: 05/16/2023] [Indexed: 05/28/2023]
Abstract
In the last decade, several methods were applied to monitor the impact of oil pollution on marine organisms. Recent studies showed an eminent need to standardize these methods to produce comparable results. Here we present the first thorough systematic review of the literature on oil pollution monitoring methods in the last decade. The literature search resulted on 390 selected original articles, categorized according to the analytical method employed. Except for Ecosystem-level analyses, most methods are used on short-term studies. The combination of Biomarker and Bioaccumulation analysis is the most frequently adopted strategy for oil pollution biomonitoring, followed by Omic analyses. This systematic review describes the principles of the most frequently used monitoring tools, presents their advantages, limitations, and main findings and, as such, could be used as a guideline for future researches on the field.
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Affiliation(s)
- Nícollas Menezes Ferreira
- Department of Marine Biotechnology, Instituto de Estudos do Mar Almirante Paulo Moreira-IEAPM, Arraial do Cabo, RJ 28930000, Brazil; Marine Biotecnology Graduate Program, Instituto de Estudos do Mar Almirante Paulo Moreia-IEAPM and Universidade Federal Fluminense-UFF, Niterói, RJ 24220900, Brazil
| | - Ricardo Coutinho
- Department of Marine Biotechnology, Instituto de Estudos do Mar Almirante Paulo Moreira-IEAPM, Arraial do Cabo, RJ 28930000, Brazil; Marine Biotecnology Graduate Program, Instituto de Estudos do Mar Almirante Paulo Moreia-IEAPM and Universidade Federal Fluminense-UFF, Niterói, RJ 24220900, Brazil
| | - Louisi Souza de Oliveira
- Department of Marine Biotechnology, Instituto de Estudos do Mar Almirante Paulo Moreira-IEAPM, Arraial do Cabo, RJ 28930000, Brazil; Marine Biotecnology Graduate Program, Instituto de Estudos do Mar Almirante Paulo Moreia-IEAPM and Universidade Federal Fluminense-UFF, Niterói, RJ 24220900, Brazil.
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Kottuparambil S, Ashok A, Barozzi A, Michoud G, Cai C, Daffonchio D, Duarte CM, Agusti S. Tracking the early signals of crude oil in seawater and plankton after a major oil spill in the Red Sea. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2023; 30:69150-69164. [PMID: 37133655 DOI: 10.1007/s11356-023-27111-0] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/14/2022] [Accepted: 04/15/2023] [Indexed: 05/04/2023]
Abstract
Understanding the immediate impacts of oil spills is essential to recognizing their long-term consequences on the marine environment. In this study, we traced the early (within one week) signals of crude oil in seawater and plankton after a major oil spill in October 2019 in the Red Sea. At the time of sampling, the plume had moved eastward, but we detected significant signs of incorporation of oil carbon into the dissolved organic carbon pool, resulting in a 10-20% increase in the ultraviolet (UV) absorption coefficient (a254) of chromophoric dissolved organic matter (CDOM), elevated oil fluorescence emissions, and depletion of the carbon isotope composition (δ13C) of the seawater. The abundance of the picophytoplankton Synechococcus was not affected, but the proportion of low nucleic acid (LNA) bacteria was significantly higher. Moreover, specific bacterial genera (Alcanivorax, Salinisphaera, and Oleibacter) were enriched in the seawater microbiome. Metagenome-assembled genomes (MAGs) suggested that such bacteria presented pathways for growing on oil hydrocarbons. Traces of polycyclic aromatic hydrocarbons (PAHs) were also detected in zooplankton tissues, revealing the rapid entry of oil pollutants into the pelagic food web. Our study emphasizes the early signs of short-lived spills as an important aspect of the prediction of long-term impacts of marine oil spills.
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Affiliation(s)
- Sreejith Kottuparambil
- Red Sea Research Center (RSRC), King Abdullah University of Science and Technology (KAUST), Thuwal, Saudi Arabia.
| | - Ananya Ashok
- Red Sea Research Center (RSRC), King Abdullah University of Science and Technology (KAUST), Thuwal, Saudi Arabia
| | - Alan Barozzi
- Red Sea Research Center (RSRC), King Abdullah University of Science and Technology (KAUST), Thuwal, Saudi Arabia
| | - Grégoire Michoud
- Red Sea Research Center (RSRC), King Abdullah University of Science and Technology (KAUST), Thuwal, Saudi Arabia
| | - Chunzhi Cai
- Red Sea Research Center (RSRC), King Abdullah University of Science and Technology (KAUST), Thuwal, Saudi Arabia
| | - Daniele Daffonchio
- Red Sea Research Center (RSRC), King Abdullah University of Science and Technology (KAUST), Thuwal, Saudi Arabia
| | - Carlos M Duarte
- Red Sea Research Center (RSRC), King Abdullah University of Science and Technology (KAUST), Thuwal, Saudi Arabia
- Computational Bioscience Research Center (CBRC), King Abdullah University of Science and Technology, Thuwal, Saudi Arabia
| | - Susana Agusti
- Red Sea Research Center (RSRC), King Abdullah University of Science and Technology (KAUST), Thuwal, Saudi Arabia
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6
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Topor ZM, A Genung M, Robinson KL. Multi-storm analysis reveals distinct zooplankton communities following freshening of the Gulf of Mexico shelf by Hurricane Harvey. Sci Rep 2022; 12:8721. [PMID: 35610246 PMCID: PMC9130273 DOI: 10.1038/s41598-022-12573-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2022] [Accepted: 05/12/2022] [Indexed: 11/24/2022] Open
Abstract
Tropical cyclones can highly modify coastal ecosystems through interactions between their unique set of meteorological traits and an ecosystem's antecedent conditions. As such, resultant changes to biological community structure are likely storm-specific, yet our understanding of cyclone effects on marine communities is limited compared to communities in terrestrial and freshwater habitats. Using northwestern Gulf of Mexico (NWGOM) mesozooplankton data, we tested: (1) for differences between storm and non-storm community structure and dispersion; (2) if post-storm communities varied between one another; (3) if salinity drove differences; and (4) if physical drivers of abundance and evenness varied between storm and non-storm communities. Mesozooplankton community structure following Hurricanes Harvey, Ike, Rita, and during five non-storm years were analyzed. Post-Ike, post-Rita, and non-storm communities were similar while post-Harvey communities were distinct from non-storm years. A structural equation model revealed stratification and abundance drove community evenness. Post-Harvey mesozooplankton were more abundant in low salinity waters; a pattern muted during non-storm years. NWGOM mesozooplankton community structure was generally resilient to hurricane effects, except when large changes in salinity occurred. Our findings suggest resource availability for planktivorous predators and energy transfer within coastal food webs is altered following cyclones with high precipitation rates.
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Affiliation(s)
- Z M Topor
- Department of Biology, University of Louisiana at Lafayette, Lafayette, 70503, USA.
| | - M A Genung
- Department of Biology, University of Louisiana at Lafayette, Lafayette, 70503, USA
| | - K L Robinson
- Department of Biology, University of Louisiana at Lafayette, Lafayette, 70503, USA
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7
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Letendre F, Cameron CB. The capture of crude oil droplets by filter feeders at high and low Reynolds numbers. J Exp Biol 2022; 225:275171. [PMID: 35389496 DOI: 10.1242/jeb.243819] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2021] [Accepted: 03/29/2022] [Indexed: 11/20/2022]
Abstract
Crustacean filter feeders capture oil droplets with the use of their ramified appendages. These appendages behave as paddles or sieves, based on the system's Reynolds number. Here we used high-speed videography, scanning electron microscopy and fluid mechanics to study the capturing mechanisms of crude oil droplets and the filtering appendage's wettability by two species of barnacles (Balanus glandula and Balanus crenatus) and of the freshwater cladoceran Daphnia magna. Our results show that barnacles appendages will behave as paddles and capture droplets in their boundary layers at low Reynolds number. At high Reynolds number, droplets are most likely to be captured via direct interception. There is an intermediate range of Reynolds number where droplets can be captured by both mechanisms at the same time. Daphnia magna captures droplets in the boundary layers of the third and fourth pair of thoracic legs with a metachronal motion of the appendages. All studied surfaces were revealed to be highly lipophobic, demonstrating captured oil droplets with high contact angles. We also discuss implications of such capture mechanisms and wettability on potential ingestion of crude oil by filter feeders. These results further our understanding of the capture of crude oil by filter feeders, shedding light onto the main entry point of oil in the marine food webs.
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Affiliation(s)
- Francis Letendre
- Département de sciences biologiques, Complexe des sciences, Université de Montréal, 1375 Avenue Thérèse-Lavoie-Roux, Montréal, Québec, H2V 0B3, Canada
| | - Christopher B Cameron
- Département de sciences biologiques, Complexe des sciences, Université de Montréal, 1375 Avenue Thérèse-Lavoie-Roux, Montréal, Québec, H2V 0B3, Canada
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8
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Bonecker ACT, Menezes BS, Dias Junior C, Silva CAD, Ancona CM, Dias CDO, Longhini CM, Costa ES, Sá F, Lázaro GCS, Mill GN, Rocha GM, Lemos KDN, da Conceição LR, Demoner LE, Fernandes LFL, Castro MSD, Alves MM, Laino PDS, Auer PPB, Cagnin RC, Ghisolfi RD, Neto RR, Bonecker SLC. An integrated study of the plankton community after four years of Fundão dam disaster. THE SCIENCE OF THE TOTAL ENVIRONMENT 2022; 806:150613. [PMID: 34648830 DOI: 10.1016/j.scitotenv.2021.150613] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/12/2021] [Revised: 09/12/2021] [Accepted: 09/22/2021] [Indexed: 06/13/2023]
Abstract
Mining activities can affect the environment either by the tailings releasing or dams failures. The impact of the tailings can last decades and cause chronic effects due to their toxicity. The Fundão dam collapse, a relevant environmental disaster, occurred in November 2015 in Southeastern Brazil. Tailing rich in metals reached the Doce River and arrived in the Atlantic Ocean. Previous studies revealed the acute impact of the tailings in the marine planktonic community near the Doce River mouth. The current study aims to characterize the structure of planktonic assemblages in the impacted area after four years of the disaster. Sampling occurred in November 2018, January, April, and July 2019 at 32 stations located at the marine coastal area near the Doce River mouth. Our study detected high metal concentrations in the surface waters during January 2019, when the lowest diversity and abundance of phytoplankton, lowest zooplankton diversity, and low ichthyoplankton abundance were recorded. The zooplanktonic community was structured by environmental parameters and ichthyoplankton assemblages in November 2018, January and April 2019. Nutrients and metals, mainly iron from the tailing carried by the Doce River waters to the marine environment changed the plankton community, confirming the impact of the Fundão Dam collapse in the coastal area near the Doce River mouth. The phytoplankton community, influenced by the nutrients and to a lesser extent metals concentrations, was not decisive in the zooplankton community structure. The environmental variability was driven by the meteoceanographic conditions and the Doce River flow. There was a high correlation between the zooplanktonic community and ichthyoplanktonic assemblage and the environmental factors and metals. These relations indicate the impact of the tailings from the collapse of the Fundão Dam on these communities, even after four years of the Mariana disaster.
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Affiliation(s)
- Ana Cristina Teixeira Bonecker
- Universidade Federal do Rio de Janeiro, Instituto de Biologia, Departamento de Zoologia, Avenida Prof. Rodolpho Rocco, 211, Prédio do CCS, Bloco A, Sala A0-084, Ilha do Fundão, 21941-909 Rio de Janeiro, RJ, Brazil.
| | - Bárbara Santos Menezes
- Universidade Federal do Rio de Janeiro, Instituto de Biologia, Departamento de Zoologia, Avenida Prof. Rodolpho Rocco, 211, Prédio do CCS, Bloco A, Sala A0-084, Ilha do Fundão, 21941-909 Rio de Janeiro, RJ, Brazil; Universidade Federal do Rio de Janeiro, Centro de Tecnologia, Escola Politécnica, Programa de Engenharia Ambiental-PEA, Avenida Athos da Silveira Ramos, 149, Bl. A, 2 andar, Sala DAPG, Ilha do Fundão, 21941-909 Rio de Janeiro, RJ, Brazil
| | - Camilo Dias Junior
- Universidade Federal do Espírito Santo, Departamento de Oceanografia e Ecologia, Av. Fernando Ferrari 514, Vitória, Espírito Santo, Brazil
| | - Cesar Alexandro da Silva
- Universidade Federal do Espírito Santo, Departamento de Oceanografia e Ecologia, Av. Fernando Ferrari 514, Vitória, Espírito Santo, Brazil
| | - Cintia Maria Ancona
- Universidade Federal do Espírito Santo, Departamento de Oceanografia e Ecologia, Av. Fernando Ferrari 514, Vitória, Espírito Santo, Brazil
| | - Cristina de Oliveira Dias
- Universidade Federal do Rio de Janeiro, Instituto de Biologia, Departamento de Zoologia, Avenida Prof. Rodolpho Rocco, 211, Prédio do CCS, Bloco A, Sala A0-084, Ilha do Fundão, 21941-909 Rio de Janeiro, RJ, Brazil; Universidade Federal do Rio de Janeiro, Centro de Tecnologia, Escola Politécnica, Programa de Engenharia Ambiental-PEA, Avenida Athos da Silveira Ramos, 149, Bl. A, 2 andar, Sala DAPG, Ilha do Fundão, 21941-909 Rio de Janeiro, RJ, Brazil
| | - Cybelle Menolli Longhini
- Universidade Federal do Espírito Santo, Departamento de Oceanografia e Ecologia, Av. Fernando Ferrari 514, Vitória, Espírito Santo, Brazil
| | - Eduardo Schettini Costa
- Universidade Federal do Espírito Santo, Departamento de Oceanografia e Ecologia, Av. Fernando Ferrari 514, Vitória, Espírito Santo, Brazil
| | - Fabian Sá
- Universidade Federal do Espírito Santo, Departamento de Oceanografia e Ecologia, Av. Fernando Ferrari 514, Vitória, Espírito Santo, Brazil
| | - Georgette Cristina Salvador Lázaro
- Universidade Federal do Espírito Santo, Departamento de Oceanografia e Ecologia, Av. Fernando Ferrari 514, Vitória, Espírito Santo, Brazil
| | - Guilherme Nogueira Mill
- Universidade Federal do Espírito Santo, Departamento de Oceanografia e Ecologia, Av. Fernando Ferrari 514, Vitória, Espírito Santo, Brazil
| | - Gustavo Martins Rocha
- Universidade Federal do Espírito Santo, Departamento de Oceanografia e Ecologia, Av. Fernando Ferrari 514, Vitória, Espírito Santo, Brazil
| | - Kassia do Nascimento Lemos
- Universidade Federal do Espírito Santo, Departamento de Oceanografia e Ecologia, Av. Fernando Ferrari 514, Vitória, Espírito Santo, Brazil
| | - Laura Rodrigues da Conceição
- Universidade Federal do Espírito Santo, Departamento de Oceanografia e Ecologia, Av. Fernando Ferrari 514, Vitória, Espírito Santo, Brazil
| | - Lilian Elisa Demoner
- Universidade Federal do Espírito Santo, Departamento de Oceanografia e Ecologia, Av. Fernando Ferrari 514, Vitória, Espírito Santo, Brazil
| | - Luiz Fernando Loureiro Fernandes
- Universidade Federal do Espírito Santo, Departamento de Oceanografia e Ecologia, Av. Fernando Ferrari 514, Vitória, Espírito Santo, Brazil
| | - Márcia Salustiano de Castro
- Universidade Federal do Rio de Janeiro, Instituto de Biologia, Departamento de Zoologia, Avenida Prof. Rodolpho Rocco, 211, Prédio do CCS, Bloco A, Sala A0-084, Ilha do Fundão, 21941-909 Rio de Janeiro, RJ, Brazil; Universidade Federal do Rio de Janeiro, Centro de Tecnologia, Escola Politécnica, Programa de Engenharia Ambiental-PEA, Avenida Athos da Silveira Ramos, 149, Bl. A, 2 andar, Sala DAPG, Ilha do Fundão, 21941-909 Rio de Janeiro, RJ, Brazil
| | - Mariana Magnago Alves
- Universidade Federal do Espírito Santo, Departamento de Oceanografia e Ecologia, Av. Fernando Ferrari 514, Vitória, Espírito Santo, Brazil
| | - Pedro de Souza Laino
- Universidade Federal do Espírito Santo, Departamento de Oceanografia e Ecologia, Av. Fernando Ferrari 514, Vitória, Espírito Santo, Brazil
| | - Pollyanna Pereira Borgo Auer
- Universidade Federal do Espírito Santo, Departamento de Oceanografia e Ecologia, Av. Fernando Ferrari 514, Vitória, Espírito Santo, Brazil
| | - Renata Caiado Cagnin
- Universidade Federal do Espírito Santo, Departamento de Oceanografia e Ecologia, Av. Fernando Ferrari 514, Vitória, Espírito Santo, Brazil
| | - Renato David Ghisolfi
- Universidade Federal do Espírito Santo, Departamento de Oceanografia e Ecologia, Av. Fernando Ferrari 514, Vitória, Espírito Santo, Brazil
| | - Renato Rodrigues Neto
- Universidade Federal do Espírito Santo, Departamento de Oceanografia e Ecologia, Av. Fernando Ferrari 514, Vitória, Espírito Santo, Brazil
| | - Sérgio Luiz Costa Bonecker
- Universidade Federal do Rio de Janeiro, Instituto de Biologia, Departamento de Zoologia, Avenida Prof. Rodolpho Rocco, 211, Prédio do CCS, Bloco A, Sala A0-084, Ilha do Fundão, 21941-909 Rio de Janeiro, RJ, Brazil; Universidade Federal do Rio de Janeiro, Centro de Tecnologia, Escola Politécnica, Programa de Engenharia Ambiental-PEA, Avenida Athos da Silveira Ramos, 149, Bl. A, 2 andar, Sala DAPG, Ilha do Fundão, 21941-909 Rio de Janeiro, RJ, Brazil
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9
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Chen Y, Sun Y, Yu W, Liu Y, Hu H. A novel lightweight bilateral segmentation network for detecting oil spills on the sea surface. MARINE POLLUTION BULLETIN 2022; 175:113343. [PMID: 35051846 DOI: 10.1016/j.marpolbul.2022.113343] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/08/2021] [Revised: 12/29/2021] [Accepted: 01/09/2022] [Indexed: 06/14/2023]
Abstract
Accidental oil spills from pipelines or tankers have posed a big threat to marine life and natural resources. This paper presents a novel lightweight bilateral segmentation network for detecting oil spills on the sea surface. A novel deep-learning semantic-segmentation algorithm is firstly created for analyzing the characteristics of oil spill images. A Bilateral Segmentation Network (BiSeNetV2) is then selected as the basic network architecture and evaluated by using experimental comparison of the current mainstream networks on detection accuracy and real-time performances for oil samples. Furthermore, the Gather-and-Expansion (GE) layer of the semantic branch in the traditional network is redesigned and the parameter complexity is reduced. A dual attention mechanism is deployed in the two branches of the BiSeNetV2 to solve the problem of inter-class similarity. Finally, experimental results are given to show the good detection accuracy of the proposed network.
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Affiliation(s)
- Yuqing Chen
- Department of Automation, College of Marine Electrical Engineering, Dalian Maritime University, Dalian, China.
| | - Yuhan Sun
- Department of Automation, College of Marine Electrical Engineering, Dalian Maritime University, Dalian, China
| | - Wei Yu
- Department of Automation, College of Marine Electrical Engineering, Dalian Maritime University, Dalian, China
| | - Yaowen Liu
- Department of Automation, College of Marine Electrical Engineering, Dalian Maritime University, Dalian, China
| | - Huosheng Hu
- School of Computer Science and Electronic Engineering, University of Essex, Colchester, United Kingdom
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Quigg A, Parsons M, Bargu S, Ozhan K, Daly KL, Chakraborty S, Kamalanathan M, Erdner D, Cosgrove S, Buskey EJ. Marine phytoplankton responses to oil and dispersant exposures: Knowledge gained since the Deepwater Horizon oil spill. MARINE POLLUTION BULLETIN 2021; 164:112074. [PMID: 33540275 DOI: 10.1016/j.marpolbul.2021.112074] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/06/2020] [Revised: 10/16/2020] [Accepted: 01/15/2021] [Indexed: 06/12/2023]
Abstract
The Deepwater Horizon oil spill of 2010 brought the ecology and health of the Gulf of Mexico to the forefront of the public's and scientific community's attention. Not only did we need a better understanding of how this oil spill impacted the Gulf of Mexico ecosystem, but we also needed to apply this knowledge to help assess impacts from perturbations in the region and guide future response actions. Phytoplankton represent the base of the food web in oceanic systems. As such, alterations of the phytoplankton community propagate to upper trophic levels. This review brings together new insights into the influence of oil and dispersant on phytoplankton. We bring together laboratory, mesocosm and field experiments, including insights into novel observations of harmful algal bloom (HAB) forming species and zooplankton as well as bacteria-phytoplankton interactions. We finish by addressing knowledge gaps and highlighting key topics for research in novel areas.
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Affiliation(s)
- Antonietta Quigg
- Texas A&M University at Galveston, 200 Seawolf Parkway, Galveston, TX 77553, USA.
| | - Michael Parsons
- Florida Gulf Coast University, 10501 FGCU Blvd South, Fort Myers, FL 33965, USA.
| | - Sibel Bargu
- Louisiana State University, 1235 Energy, Coast & Environment Building, Baton Rouge, LA 70803, USA.
| | - Koray Ozhan
- Middle East Technical University, P.O. Box 28, 33731 Erdemli, Mersin, Turkey.
| | - Kendra L Daly
- University of South Florida, 140 Seventh Ave S., St. Petersburg, FL 33701, USA.
| | - Sumit Chakraborty
- Mote Marine Laboratory, 1600 Ken Thompson Parkway, Sarasota, FL 34236, USA.
| | - Manoj Kamalanathan
- Texas A&M University at Galveston, 200 Seawolf Parkway, Galveston, TX 77553, USA.
| | - Deana Erdner
- University of Texas Marine Science Institute, 750 Channel View Drive, Port Aransas, TX 78373, USA.
| | - Sarah Cosgrove
- University of Texas Marine Science Institute, 750 Channel View Drive, Port Aransas, TX 78373, USA.
| | - Edward J Buskey
- University of Texas Marine Science Institute, 750 Channel View Drive, Port Aransas, TX 78373, USA.
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