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Chen J, Yuan C, Zhang Y, Wu J, Chen G, Chen S, Wu H, Zhu H, Ye Y. Dredging wastewater discharge from shrimp ponds affects mangrove soil physical-chemical properties and enzyme activities. THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 926:171916. [PMID: 38522536 DOI: 10.1016/j.scitotenv.2024.171916] [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: 11/25/2023] [Revised: 03/19/2024] [Accepted: 03/21/2024] [Indexed: 03/26/2024]
Abstract
Dredging wastewater discharge is a significant environmental concern for mariculture near mangrove ecosystems. However, little attention has been paid to its effects on the soil physical-chemical properties and enzyme activities in mangrove habitats. This study compared the soil physical-chemical properties and enzyme activities in the polluted area that received dredging wastewater from a shrimp pond with those in the control area without wastewater to explore the effects of wastewater discharge on the soil physical-chemical properties and enzyme activities. Variations in soil physical-chemical properties and enzyme activities across different tidal flat areas and depths were also examined. The polluted area exhibited lower soil salinity (10.47 ± 0.58 vs. 15.64 ± 0.54) and moisture content (41.85 ± 1.03 % vs. 45.81 ± 1.06 %) than the control area. Wastewater discharge increased soil enzyme activities, (acid phosphatase, protease, and catalase), resulting in higher inorganic nitrogen (13.20 ± 0.00 μg g-1 vs. 11.60 ± 0.03 μg g-1) but lower total nitrogen (0.93 ± 0.01 mg g-1 vs. 1.62 ± 0.11 mg g-1) in the contaminated zone. From the control to polluted area, there was an approximate increase of 0.43 and 0.83 mg g-1 in soil total phosphorus and soluble phosphate, driven by increased acid phosphatase. However, soil humus and organic matter decreased by 0.04 and 1.22 %, respectively, because of wastewater discharge. The impact of wastewater discharge on the soil physical-chemical properties and enzyme activities was most pronounced in the landward and surface soil layers (0-5 cm). The results showed that wastewater discharge altered soil physical-chemical properties and enzyme activities, accumulating soil bioavailable nutrients (inorganic nitrogen and soluble phosphate), but at the cost of reduced soil quality, especially organic matter, further adversely affecting the overall health of mangrove ecosystems. Prioritizing the management of wastewater discharged from mariculture adjacent to mangrove forests is crucial for mangrove conservation.
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Affiliation(s)
- Jiahui Chen
- Fujian Provincial Key Laboratory of Marine Ecological Conservation and Restoration, Third Institute of Oceanography, Ministry of Natural Resources, Xiamen, Fujian, China; Key Laboratory of the Ministry of Education for Coastal and Wetland Ecosystems, College of the Environment and Ecology, Xiamen University, Xiamen, Fujian, China; Guangxi Beihai Monitoring and Experimental Station of Marine Ecosystems, Third Institute of Oceanography, Ministry of Natural Resources, Beihai, Guangxi, China
| | - Chengyu Yuan
- Key Laboratory of the Ministry of Education for Coastal and Wetland Ecosystems, College of the Environment and Ecology, Xiamen University, Xiamen, Fujian, China; Fujian Key Laboratory of Coastal Pollution Prevention and Control, Xiamen University, Xiamen, Fujian, China
| | - Yang Zhang
- Key Laboratory of the Ministry of Education for Coastal and Wetland Ecosystems, College of the Environment and Ecology, Xiamen University, Xiamen, Fujian, China
| | - Jiajia Wu
- Key Laboratory of the Ministry of Education for Coastal and Wetland Ecosystems, College of the Environment and Ecology, Xiamen University, Xiamen, Fujian, China; Fujian Key Laboratory of Coastal Pollution Prevention and Control, Xiamen University, Xiamen, Fujian, China
| | - Guangcheng Chen
- Fujian Provincial Key Laboratory of Marine Ecological Conservation and Restoration, Third Institute of Oceanography, Ministry of Natural Resources, Xiamen, Fujian, China; Guangxi Beihai Monitoring and Experimental Station of Marine Ecosystems, Third Institute of Oceanography, Ministry of Natural Resources, Beihai, Guangxi, China.
| | - Shunyang Chen
- Fujian Provincial Key Laboratory of Marine Ecological Conservation and Restoration, Third Institute of Oceanography, Ministry of Natural Resources, Xiamen, Fujian, China; Guangxi Beihai Monitoring and Experimental Station of Marine Ecosystems, Third Institute of Oceanography, Ministry of Natural Resources, Beihai, Guangxi, China
| | - Hongyi Wu
- Fujian Provincial Key Laboratory of Marine Ecological Conservation and Restoration, Third Institute of Oceanography, Ministry of Natural Resources, Xiamen, Fujian, China
| | - Heng Zhu
- Key Laboratory of the Ministry of Education for Coastal and Wetland Ecosystems, College of the Environment and Ecology, Xiamen University, Xiamen, Fujian, China
| | - Yong Ye
- Key Laboratory of the Ministry of Education for Coastal and Wetland Ecosystems, College of the Environment and Ecology, Xiamen University, Xiamen, Fujian, China; Fujian Key Laboratory of Coastal Pollution Prevention and Control, Xiamen University, Xiamen, Fujian, China.
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Xie L, Chen S, Wu Z, Xue Z, Ye Y, Chen B, Chen J, Chen G. Influence of wastewater discharge from dredging mariculture pond sediments on the food sources of two intertidal crab species. MARINE POLLUTION BULLETIN 2024; 199:115992. [PMID: 38181471 DOI: 10.1016/j.marpolbul.2023.115992] [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: 09/28/2023] [Revised: 12/25/2023] [Accepted: 12/25/2023] [Indexed: 01/07/2024]
Abstract
The present study δ13C, δ15N and fatty acid compositions of two dominant mangrove crabs, Tubuca arcuata and Parasesarma plicatum were compared between a mangrove site frequently receiving dredged wastewater from mariculture ponds and an adjacent reference site, to investigate the impact of wastewater discharge on their diets. A laboratory experiment was also conducted to further test how their diets changed with the wastewater input. The result showed no significant change in the δ13C while clear 15N enrichment of crabs in association with the wastewater discharge. Changes in 15N signature and fatty acid composition of the crabs due to the wastewater discharge indicated that the impact of wastewater discharge was related to crab species, being more apparent on the deposit feeder (T. arcuata) than the herbivorous P. plicatum. The results suggested that the discharge of dredged wastewater into mangroves resulted in the uptake of wastewater-derived materials and nutrients by mangrove crabs.
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Affiliation(s)
- Limei Xie
- College of the Environment and Ecology, Xiamen University, Xiamen, China; Third Institute of Oceanography, Ministry of Natural Resources, Xiamen, China
| | - Shunyang Chen
- Third Institute of Oceanography, Ministry of Natural Resources, Xiamen, China; Key Laboratory of Marine Ecological Conservation and Restoration, Ministry of Natural Resources, Xiamen, China
| | - Zhiqiang Wu
- College of Marine Life Sciences, Ocean University of China, Qingdao, China
| | - Zhiyong Xue
- Fugong Forestry Workstation, Longhai District Forestry Bureau, Zhangzhou, China
| | - Yong Ye
- College of the Environment and Ecology, Xiamen University, Xiamen, China
| | - Bin Chen
- Third Institute of Oceanography, Ministry of Natural Resources, Xiamen, China; Key Laboratory of Marine Ecological Conservation and Restoration, Ministry of Natural Resources, Xiamen, China
| | - Jiahui Chen
- Third Institute of Oceanography, Ministry of Natural Resources, Xiamen, China
| | - Guangcheng Chen
- Third Institute of Oceanography, Ministry of Natural Resources, Xiamen, China; Key Laboratory of Marine Ecological Conservation and Restoration, Ministry of Natural Resources, Xiamen, China.
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3
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Cortez CS, Ribeiro R, Moreira-Santos M. Ecological risk assessment of the Paraíba River estuary (Brazil): Plan for a tier 1 screening phase for the ecotoxicological line of evidence. CHEMOSPHERE 2023:139039. [PMID: 37279821 DOI: 10.1016/j.chemosphere.2023.139039] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/05/2022] [Revised: 05/15/2023] [Accepted: 05/24/2023] [Indexed: 06/08/2023]
Abstract
The knowledge produced in temperate regions is still used today to evaluate environmental problems in the tropics, without taking into consideration environmental differences, such as local conditions, the sensitivity and ecology of species, and exposure routes of contaminants, essential for understanding and determining the fate and toxicity of chemicals. Considering that Environmental Risk Assessment (ERA) studies for tropical systems are scarce and need to be adjusted, the present study aims at contributing to the awareness and development of tropical ecotoxicology. The estuary of the Paraíba River in Northeast Brazil was selected as a model study-case, as it is a large estuary, subjected to a heavy human pressure due to the numerous social, economic and industrial activities. The present study describes the framework for the problem formulation phase of the ERA process; it first includes a detailed integration of the scientific information available on the study area, to then derive the conceptual model, and finally present the analysis plan for the tier 1 screening phase. The latter is designed to be fundamentally supported by the ecotoxicological line of evidence, to ascertain, without delay, where and why there are environmental problems (i.e., adverse biological effects); ecotoxicological tools developed in temperate climates will be optimized to assess water quality in a tropical system. In addition to its intrinsic value for protecting the study area, the results of the present study are expected to provide an important baseline for conducting ERA in similar tropical aquatic systems across the globe.
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Affiliation(s)
- Creuza S Cortez
- Centre for Functional Ecology - Science for People and the Planet, Associate Laboratory TERRA, Department of Life Sciences, University of Coimbra, Calçada Martim de Freitas, 3000-456, Coimbra, Portugal; Federal University of Paraíba, Department of Systematics and Ecology, Campus I, Cidade Universitária, 58051-900, João Pessoa, PB, Brazil
| | - Rui Ribeiro
- Centre for Functional Ecology - Science for People and the Planet, Associate Laboratory TERRA, Department of Life Sciences, University of Coimbra, Calçada Martim de Freitas, 3000-456, Coimbra, Portugal
| | - Matilde Moreira-Santos
- Centre for Functional Ecology - Science for People and the Planet, Associate Laboratory TERRA, Department of Life Sciences, University of Coimbra, Calçada Martim de Freitas, 3000-456, Coimbra, Portugal.
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Chunga-Llauce JA, Benavides MT, Borja Á, Vélez-Zuazo X, Vildoso B, Alonso A, Pacheco AS, Tasso V. Assessing the ecological quality status of macrobenthic communities in a marine terminal of liquefied natural gas in Peru. MARINE ENVIRONMENTAL RESEARCH 2023; 185:105879. [PMID: 36642023 DOI: 10.1016/j.marenvres.2023.105879] [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: 11/26/2022] [Revised: 01/10/2023] [Accepted: 01/10/2023] [Indexed: 06/17/2023]
Abstract
Macrobenthic organisms are useful bioindicators to assess ecological quality status. On the south-central coast of Peru (13°15.15'S, 76°18.5'W), a Liquefied Natural Gas (LNG) marine terminal has been operating since 2010. We investigated the macrobenthic communities and sediment parameters from 2011 to 2020 to evaluate the ecological quality status in the surrounding area of the marine terminal, using the AZTI Marine Biotic Index (AMBI) and its multivariate version (M-AMBI). We analyzed the diversity and community composition of macrobenthic invertebrates and the physico-chemical parameters of the sediment from 29 sampling sites, ranging from 0 to 15m depth. The sampling design considered: the direct influence zone ("DIZ", surroundings of the marine terminal), and northern (NCZ) and southern (SCZ) control zones. Our results indicated that abundance was high at SCZ and decreased with depth. Species richness and diversity were high at DIZ and NCZ, respectively, and increased up to 10m but dropped at 15m. High sand content was recorded in shallow depths, while in deeper areas and DIZ, mud and organic matter increased and redox potential was negative. AMBI indicated a "slightly disturbed" status in general, while M-AMBI indicated "good" or "moderate" status at depths ≤ 12m, and "poor" status at 15m. Overall, the season/year factor was not important, and variables were mostly significantly different across depths. Redox potential and organic matter were correlated with M-AMBI at 15m. In general, our results indicate an acceptable ecological quality surrounding the marine terminal, likely because the study area is not influenced by an important input of an anthropogenic stressor. This study highlights the importance of monitoring benthic communities in the surroundings of human-made structures and the use of ecological quality indices for understanding potential impacts.
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Affiliation(s)
- Juan A Chunga-Llauce
- Smithsonian's National Zoo and Conservation Biology Institute, 3001 Connecticut Ave NW, Washington, DC, 20008, USA; Asociación Peruana para la Conservación de la Naturaleza, Parque José de Acosta 187, Lima, 15076, Peru; Facultad de Ciencias Biológicas, Universidad Nacional Mayor de San Marcos, Av. Venezuela s/n cuadra 34, Lima, 15081, Peru.
| | - Martín T Benavides
- Smithsonian's National Zoo and Conservation Biology Institute, 3001 Connecticut Ave NW, Washington, DC, 20008, USA; Asociación Peruana para la Conservación de la Naturaleza, Parque José de Acosta 187, Lima, 15076, Peru
| | - Ángel Borja
- AZTI, Marine Research Division, Basque Research and Technology Alliance (BRTA), Herrera Kaia, Portualdea s/n, Pasaia, 20110, Spain; Faculty of Marine Sciences, King Abdulaziz University, Jeddah, 21589, Saudi Arabia
| | - Ximena Vélez-Zuazo
- Smithsonian's National Zoo and Conservation Biology Institute, 3001 Connecticut Ave NW, Washington, DC, 20008, USA; Asociación Peruana para la Conservación de la Naturaleza, Parque José de Acosta 187, Lima, 15076, Peru
| | - Bruno Vildoso
- Hunt LNG Operating Company, Calle Las Palmeras 435, Lima, 15073, Peru
| | - Alfonso Alonso
- Smithsonian's National Zoo and Conservation Biology Institute, 3001 Connecticut Ave NW, Washington, DC, 20008, USA
| | - Aldo S Pacheco
- Facultad de Ciencias Biológicas, Universidad Nacional Mayor de San Marcos, Av. Venezuela s/n cuadra 34, Lima, 15081, Peru
| | - Vicente Tasso
- Oceansnell, Marine Environmental Consulting, Calle Aitana, Valencia, 46940, Spain
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Loiola M, Silva AET, Krull M, Barbosa FA, Galvão EH, Patire VF, Cruz ICS, Barros F, Hatje V, Meirelles PM. Mangrove microbial community recovery and their role in early stages of forest recolonization within shrimp ponds. THE SCIENCE OF THE TOTAL ENVIRONMENT 2023; 855:158863. [PMID: 36126709 DOI: 10.1016/j.scitotenv.2022.158863] [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: 03/12/2022] [Revised: 09/14/2022] [Accepted: 09/15/2022] [Indexed: 06/15/2023]
Abstract
Shrimp farming is blooming worldwide, posing a severe threat to mangroves and its multiple goods and ecosystem services. Several studies reported the impacts of aquaculture on mangrove biotic communities, including microbiomes. However, little is known about how mangrove soil microbiomes would change in response to mangrove forest recolonization. Using genome-resolved metagenomics, we compared the soil microbiome of mangrove forests (both with and without the direct influence of shrimp farming effluents) with active shrimp farms and mangroves under a recolonization process. We found that the structure and composition of active shrimp farms microbial communities differ from the control mangrove forests, mangroves under the impact of the shrimp farming effluents, and mangroves under recolonization. Shrimp farming ponds microbiomes have lower microbial diversity and are dominated by halophilic microorganisms, presenting high abundance of multiple antibiotic resistance genes. On the other hand, control mangrove forests, impacted mangroves (exposed to the shrimp farming effluents), and recolonization ponds were more diverse, with a higher abundance of genes related to carbon mobilization. Our data also indicated that the microbiome is recovering in the mangrove recolonization ponds, performing vital metabolic functions and functionally resembling microbiomes found in those soils of neighboring control mangrove forests. Despite highlighting the damage caused by the habitat changes in mangrove soil microbiome community and functioning, our study sheds light on these systems incredible recovery capacity. Our study shows the importance of natural mangrove forest recovery, enhancing ecosystem services by the soil microbial communities even in a very early development stage of mangrove forest, thus encouraging mangrove conservation and restoration efforts worldwide.
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Affiliation(s)
- Miguel Loiola
- Instituto de Biologia, Universidade Federal da Bahia, Salvador, Brazil
| | | | - Marcos Krull
- Leibniz Centre for Agricultural Landscape Research (ZALF), Germany
| | | | | | - Vinicius F Patire
- Centro Interdisciplinar de Energia e Ambiente (CIENAM), Universidade Federal da Bahia, Brazil
| | | | - Francisco Barros
- Instituto de Biologia, Universidade Federal da Bahia, Salvador, Brazil; Instituto Nacional de Estudos Interdisciplinares e Transdisciplinares em Ecologia e Evolução (IN-TREE), Brazil
| | - Vanessa Hatje
- Centro Interdisciplinar de Energia e Ambiente (CIENAM), Universidade Federal da Bahia, Brazil; Instituto de Química, Universidade Federal da Bahia, Brazil
| | - Pedro Milet Meirelles
- Instituto de Biologia, Universidade Federal da Bahia, Salvador, Brazil; Instituto Nacional de Estudos Interdisciplinares e Transdisciplinares em Ecologia e Evolução (IN-TREE), Brazil.
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6
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Monsalve ER, Quiroga E. Farmed shrimp aquaculture in coastal wetlands of Latin America - A review of environmental issues. MARINE POLLUTION BULLETIN 2022; 183:113956. [PMID: 36058720 DOI: 10.1016/j.marpolbul.2022.113956] [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: 01/06/2022] [Revised: 06/16/2022] [Accepted: 07/13/2022] [Indexed: 06/15/2023]
Abstract
The world production of farmed Whiteleg shrimp was 5,812,180 t in 2020. Ecuador, Mexico, and Brazil produced 1,012,830 in that year according to data FishStatJ. Environmental impact studies were scarce given the rapid growth of this activity, mainly on cummulative impacts, loss of ecosystems services or resilience of wetlands and mangroves. Aspects of the management of environmental impacts published on American studies during 1986-2020 are analyzed. The main impacts included the loss of mangroves and their transformation of these ecosystems and their water bodies by receiving enriched effluents from shrimp farms. Different management measures are discussed between Ecuador, which contributes 63.76 % of American production of white leg shrimp; Brazil which published 46.2 % of the environmental studies of the analyzed period, and Mexico, in an intermediate situation. Finally, alternatives are discussed to improve the management of shrimp aquaculture with emphasis on the Ecuadorian context.
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Affiliation(s)
- Eduardo Rebolledo Monsalve
- Programa Cooperativo Doctorado en Acuicultura PUCV, UCH y UCN, Chile; Pontificia Universidad Católica del Ecuador Sede Esmeraldas, Escuela de Gestión Ambiental, EGA-PUCESE, Ecuador.
| | - Eduardo Quiroga
- Pontificia Universidad Católica de Valparaíso (PUCV), Escuela de Ciencias Del Mar, Valparaíso, Chile
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Pandey V, Jha DK, Kumar PS, Santhanakumar J, Venkatnarayanan S, Prince Prakash Jebakumar J, Dharani G. Effect of multiple stressors on the functional traits of sub-tidal macrobenthic fauna: A case study of the southeast coast of India. MARINE POLLUTION BULLETIN 2022; 175:113355. [PMID: 35101746 DOI: 10.1016/j.marpolbul.2022.113355] [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: 06/16/2021] [Revised: 12/20/2021] [Accepted: 01/13/2022] [Indexed: 06/14/2023]
Abstract
The use of functional information of taxa is a promising approach to uncover the underlying mechanism of ecosystem functioning. We used biological trait analysis (BTA) to assess the functional response of subtidal macrobenthos with multiple stressors. Seventeen environmental variables from 42 stations of five coastal districts were assessed along the southeast coast of India. Dominant fauna was assigned into 20 categories belonging to six functional traits. Additionally, we used five ecological groups (EG) of AMBI as a covariable trait to validate functional traits and EG relationship. The trait composition in the communities showed significant variation between undisturbed and disturbed areas. RLQ/Fourth corner combined approach illustrated the effects of stressors and isolated the corresponding species associated with different stressors. Smaller, short-lived, deposit-feeding, and discretely motile fauna occurred at the disturbed areas, whereas, larger, long-lived, and highly motile at the undisturbed area. Dissolved oxygen, organic enrichment, and metals concentration were the main environmental descriptors influencing the trait composition. The results highlight the importance of the BTA approach to uncover the response of the macrobenthic community to anthropogenic disturbances-driven impacts in multi-stressed near-shore coastal ecosystems.
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Affiliation(s)
- Vikas Pandey
- Ocean Science and Technology for Islands, National Institute of Ocean Technology, Ministry of Earth Sciences (Govt. of India), Chennai 600100, India.
| | - Dilip Kumar Jha
- Ocean Science and Technology for Islands, National Institute of Ocean Technology, Ministry of Earth Sciences (Govt. of India), Chennai 600100, India
| | - P Sathish Kumar
- Ocean Science and Technology for Islands, National Institute of Ocean Technology, Ministry of Earth Sciences (Govt. of India), Chennai 600100, India
| | - J Santhanakumar
- Ocean Science and Technology for Islands, National Institute of Ocean Technology, Ministry of Earth Sciences (Govt. of India), Chennai 600100, India
| | - S Venkatnarayanan
- Ocean Science and Technology for Islands, National Institute of Ocean Technology, Ministry of Earth Sciences (Govt. of India), Chennai 600100, India
| | - J Prince Prakash Jebakumar
- Coastal and Environmental Engineering, National Institute of Ocean Technology, Ministry of Earth Sciences (Govt. of India), Chennai 600100, India
| | - G Dharani
- Ocean Science and Technology for Islands, National Institute of Ocean Technology, Ministry of Earth Sciences (Govt. of India), Chennai 600100, India.
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Martinez AS, Underwood T, Christofoletti RA, Pardal A, Fortuna MA, Marcelo-Silva J, Morais GC, Lana PC. Reviewing the effects of contamination on the biota of Brazilian coastal ecosystems: Scientific challenges for a developing country in a changing world. THE SCIENCE OF THE TOTAL ENVIRONMENT 2022; 803:150097. [PMID: 34500263 DOI: 10.1016/j.scitotenv.2021.150097] [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: 06/09/2021] [Revised: 08/26/2021] [Accepted: 08/30/2021] [Indexed: 06/13/2023]
Abstract
Pollution is a major worldwide problem that is increasing with urban growth, mainly along coastal areas. Pollution is often worse, governance is poorer and managerial strategies to improve environmental quality are less advanced in developing than developed countries. Here, we present an overview of the current scientific knowledge of the impacts of contamination on the biota of coastal ecosystems of Brazil and evaluate the scientific challenges to provide baseline information for local managerial purposes. We compiled data from 323 peer-reviewed published papers from the extensive Brazilian coast. We critically evaluated the produced knowledge (target contaminants, sources, ecosystems, taxa, response variables) and the science behind it (rigour and setting) within its socioenvironmental context (land occupation, use of the coast, sanitation status, contamination history). Research was driven largely by environmental outcomes of industrial development with a focus on the single effects of metals on the biota. The current knowledge derives mainly from laboratory manipulative experiments or from correlative field studies of changes in the biota with varying levels of contamination. Of these, 70% had problems in their experimental design. Environmental impacts have mainly been assessed using standard indicators of populations, mostly in ecotoxicological studies. Benthic assemblages have mostly been studied using structural indicators in field studies. Future assessments of impacts should expand research to more taxonomic groups and ecosystem compartments, adding combined functional and structural responses. Furthermore, further investigations need to consider the interactive effects of contaminants and other environmental stressors. By doing so, researchers would deliver more robust and effective results to solve problems of pollution.
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Affiliation(s)
- Aline S Martinez
- Institute of Marine Science, Federal University of São Paulo (IMar/UNIFESP), Rua Dr Carvalho de Mendonça 144, Santos, SP 11070-100, Brazil.
| | - Tony Underwood
- Marine Ecology Laboratories A11, School of Life and Environmental Sciences, University of Sydney, NSW 2006, Australia
| | - Ronaldo A Christofoletti
- Institute of Marine Science, Federal University of São Paulo (IMar/UNIFESP), Rua Dr Carvalho de Mendonça 144, Santos, SP 11070-100, Brazil
| | - André Pardal
- Institute of Marine Science, Federal University of São Paulo (IMar/UNIFESP), Rua Dr Carvalho de Mendonça 144, Santos, SP 11070-100, Brazil; Center for Natural and Human Sciences, Federal University of ABC (CCNH/UFABC), Rua Santa Adélia, 166, Santo André, SP 09210-170, Brazil
| | - Monique A Fortuna
- Institute of Marine Science, Federal University of São Paulo (IMar/UNIFESP), Rua Dr Carvalho de Mendonça 144, Santos, SP 11070-100, Brazil
| | - João Marcelo-Silva
- Institute of Marine Science, Federal University of São Paulo (IMar/UNIFESP), Rua Dr Carvalho de Mendonça 144, Santos, SP 11070-100, Brazil
| | - Gisele C Morais
- Laboratório de Bentos, Centro de Estudos do Mar, Universidade Federal do Paraná, Av. Beira-mar, s/n, Pontal do Paraná, PR 83255-976, Brazil
| | - Paulo C Lana
- Laboratório de Bentos, Centro de Estudos do Mar, Universidade Federal do Paraná, Av. Beira-mar, s/n, Pontal do Paraná, PR 83255-976, Brazil
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9
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Eça GF, Albergaria-Barbosa ACR, de Souza MM, Costa PG, Leite AS, Fillmann G, Hatje V. Polycyclic aromatic hydrocarbons in sediments and shellfish from Todos os Santos bay, Brazil. MARINE POLLUTION BULLETIN 2021; 173:112944. [PMID: 34536703 DOI: 10.1016/j.marpolbul.2021.112944] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/20/2021] [Revised: 09/03/2021] [Accepted: 09/04/2021] [Indexed: 06/13/2023]
Abstract
The present study evaluated the occurrence of 24 Polycyclic Aromatic Hydrocarbons (PAHs) in sediments and shellfish (Anomalocardia flexuosa, Crassostrea rhizophorae, and Mytella guyanensis) of Todos os Santos bay (BTS, Brazil). Total PAHs levels ranged from 89 to 921 ng g-1 dry weight (d.w.) in sediments, and from 66 to 505 ng g-1 d.w. in shellfish, signalizing that BTS was moderately contaminated by PAHs, mostly from pyrogenic activities. The bioaccumulation factor (BAF) of total PAHs ranged from 0.20 to 2.9 and did not show a clear trend among the studied species. BAFs of high molecular weight compounds were higher for A. flexuosa (specie found buried in fine sediment), while those of low molecular weight compounds were higher for C. rhizophorae (specie found in the roots of mangrove trees). High concentrations of PAHs, especially benzo[a]pyrene and dibenzo[a,h]anthracene, suggest that contamination compromises shellfish quality and raise concern about seafood consumption safety.
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Affiliation(s)
- Gilmara F Eça
- Departamento de Ciências Exatas e Tecnológicas, Universidade Federal do Recôncavo da Bahia, Cruz das Almas 44380-000, BA, Brazil.
| | - Ana C R Albergaria-Barbosa
- Laboratório de Geoquímica Marinha, Instituto de Geociências, Universidade Federal da Bahia UFBA, Campus de Ondina, Salvador 40170-115, BA, Brazil.
| | - Manuel M de Souza
- Laboratório de Biotecnologia de Halófitas, Instituto de Oceanografia, Universidade Federal do Rio Grande, Rio Grande 96203-900, RS, Brazil
| | - Patrícia G Costa
- Laboratório de Microcontaminantes Orgânicos e Ecotoxicologia Aquática, Instituto de Oceanografia, Universidade Federal do Rio Grande, Rio Grande 96203-900, RS, Brazil
| | - Adriele S Leite
- Núcleo de Estudos Ambientais-NEA, Instituto de Geociências, Universidade Federal da Bahia, Salvador, Bahia, BA 40170-115, Brazil
| | - Gilberto Fillmann
- Laboratório de Microcontaminantes Orgânicos e Ecotoxicologia Aquática, Instituto de Oceanografia, Universidade Federal do Rio Grande, Rio Grande 96203-900, RS, Brazil.
| | - Vanessa Hatje
- Instituto de Química & Centro Interdisciplinar de Energia e Ambiente, Universidade Federal da Bahia-UFBA, Campus de Ondina, Salvador 40170-115, BA, Brazil.
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Santos-Andrade M, Hatje V, Arias-Ortiz A, Patire VF, da Silva LA. Human disturbance drives loss of soil organic matter and changes its stability and sources in mangroves. ENVIRONMENTAL RESEARCH 2021; 202:111663. [PMID: 34256076 DOI: 10.1016/j.envres.2021.111663] [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: 03/22/2021] [Revised: 06/23/2021] [Accepted: 07/05/2021] [Indexed: 06/13/2023]
Abstract
Mangrove soils with high organic carbon (Corg) content are likely to contain Corg that is vulnerable to remineralization during land use changes. Mangrove conversion to different land uses might deplete soil Corg stocks causing variable carbon dioxide emissions, but the extent of these emissions and the fraction of soil Corg (i.e., labile or stable/recalcitrant) that is mostly lost is poorly understood. Here, we study mangrove soil Corg degradability and its susceptibility to mineralization after mangrove disturbance. We measured changes in soil properties, organic matter (OM) stability and Corg pools and sources across a mangrove disturbance gradient (i.e., pristine forests, degraded mangroves receiving domestic sewage and shrimp farm effluents, and shrimp ponds). Results showed that the conversion of mangroves to shrimp ponds caused the most severe changes in soil properties, OM and Corg characteristics. Shrimp pond soils contained the lowest OM-Corg pools, consisted mostly of stable OM (i.e., recalcitrant and refractory; 36.0 ± 5.7% of the total OM) and enriched δ13Corg (-22.6 ± 2.7‰). Conversely, control mangrove soils had the largest OM-Corg pools consisting of a large unstable OM fraction (i.e., labile; 46.4 ± 4.2%) and lighter δ13Corg (-26.8 ± 0.4‰) being characteristic of Corg from a mangrove origin. Conversion of mangroves to shrimp ponds and its degradation by shrimp farm and domestic sewage effluents caused a loss of 97%, 61%, and 35% of soil Corg stocks in the upper meter, representing potential emissions of ~1200, 800, and 400 Mg CO2 ha-1, respectively. These losses were explained by enhanced OM mineralization of unstable fractions driven by the loss of the physico-chemical protection provided by fine-grained soils and vegetation cover. The differences in Corg stability among sites can be used to predict potential carbon dioxide produced during mineralization, hence aid at prioritizing areas for conservation, restoration or management.
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Affiliation(s)
- Mauricio Santos-Andrade
- Centro Interdisciplinar de Energia e Ambiente, CIENAM, Universidade Federal da Bahia, Ondina, Salvador, Bahia, 40170-115, Brazil.
| | - Vanessa Hatje
- Centro Interdisciplinar de Energia e Ambiente, CIENAM, Universidade Federal da Bahia, Ondina, Salvador, Bahia, 40170-115, Brazil; Instituto de Química, Universidade Federal da Bahia, Ondina, Salvador, Bahia, 40170-115, Brazil
| | - Ariane Arias-Ortiz
- Ecosystem Science Division, Department of Environmental Science, Policy and Management, University of California, Berkeley, CA, USA; Institute of Marine Science, University of California, Santa Cruz, CA, 95064, USA
| | - Vinicius F Patire
- Centro Interdisciplinar de Energia e Ambiente, CIENAM, Universidade Federal da Bahia, Ondina, Salvador, Bahia, 40170-115, Brazil
| | - Luciana A da Silva
- Instituto de Química, Universidade Federal da Bahia, Ondina, Salvador, Bahia, 40170-115, Brazil
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11
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Tian Y, Lu H, Hong H, Qian L, Yuan B, Liu J, Yan C. Potential and mechanism of glomalin-related soil protein on metal sequestration in mangrove wetlands affected by aquaculture effluents. JOURNAL OF HAZARDOUS MATERIALS 2021; 420:126517. [PMID: 34261031 DOI: 10.1016/j.jhazmat.2021.126517] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/16/2021] [Revised: 06/24/2021] [Accepted: 06/25/2021] [Indexed: 06/13/2023]
Abstract
Aquaculture effluent discharge containing heavy metals affects estuarine mangrove wetlands. Glomalin-related soil protein (GRSP) is recalcitrant organic matter that can be trapped in mangrove wetlands and is critical to metal sequestration. However, studies on the effects of long-term aquaculture effluents on metal pollution in adjacent mangrove wetlands and the ecological role of GRSP are lacking. For the first time, we revealed the effects of discharge histories (0, 8, and 14 years) of shrimp pond effluents on metals (As, Cd, Cr, Cu, Fe, Mn, Ni, Pb, and Zn), including the entire process from feed to metals binding with GRSP in mangrove soils. Results showed that mangrove soils receiving the effluents generally had higher or similar metal loadings compared to the control, and long-term effluent discharge increased the potential toxicity of the metals. Aquaculture feed could be a main source of metal input. Redundancy analysis indicated that 14-year effluent discharge increased the pH, bulk density, total nitrogen, and total phosphorus of mangrove soils, reducing the potential of GRSP-bound metals. Scanning electron microscopy and infrared spectroscopy characterisation revealed that effluent disturbances changed the surface morphology and functional group contents of GRSP. This study provides insights into using GRSP as an aquaculture pollution bioindicator.
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Affiliation(s)
- Yuan Tian
- Key Laboratory of the Ministry of Education for Coastal and Wetland Ecosystems, Xiamen University, Xiamen 361102, China
| | - Haoliang Lu
- Key Laboratory of the Ministry of Education for Coastal and Wetland Ecosystems, Xiamen University, Xiamen 361102, China
| | - Hualong Hong
- Key Laboratory of the Ministry of Education for Coastal and Wetland Ecosystems, Xiamen University, Xiamen 361102, China
| | - Lu Qian
- Key Laboratory of the Ministry of Education for Coastal and Wetland Ecosystems, Xiamen University, Xiamen 361102, China
| | - Bo Yuan
- Key Laboratory of the Ministry of Education for Coastal and Wetland Ecosystems, Xiamen University, Xiamen 361102, China
| | - Jingchun Liu
- Key Laboratory of the Ministry of Education for Coastal and Wetland Ecosystems, Xiamen University, Xiamen 361102, China
| | - Chongling Yan
- Key Laboratory of the Ministry of Education for Coastal and Wetland Ecosystems, Xiamen University, Xiamen 361102, China; State Key Laboratory of Marine Environmental Science, Xiamen University, Xiamen 361102, China.
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12
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Pandey V, Venkatnarayanan S, Kumar PS, Ratnam K, Jha DK, Rajaguru S, Dharani G. Assessment of ecological health of Swarnamukhi river estuary, southeast coast of India, through AMBI indices and multivariate tools. MARINE POLLUTION BULLETIN 2021; 164:112031. [PMID: 33515835 DOI: 10.1016/j.marpolbul.2021.112031] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/19/2020] [Revised: 01/04/2021] [Accepted: 01/10/2021] [Indexed: 06/12/2023]
Abstract
A combination of biotic indices, geo-accumulation (Igeo) index, and a multivariate approach were applied to assess the anthropogenic influence on the benthic community at five stations from 2018 to 2019 in the Swarnamukhi river estuary, Nellore, India. Non-metric multidimensional scaling and cluster analysis indicated that the Buckingham canal (BC) station showed azoic conditions and formed a separate cluster. Strong positive factor loadings of Cd (0.96), Al (0.93), Zn (0.91), Fe (0.90), Co (0.89), Cu (0.89), Ni (0.87), Pb (0.85), Cr (0.77), organic matter (0.94), Silt (0.92), and clay (0.93) and negative loading of sand (-0.90) showed the variability in sediment. AMBI results illustrated the disturbance status of each station and classified BC station as 'extremely disturbed' class, and M-AMBI assessed the ecological status as 'bad'. The Igeo index also revealed metal (Cd) contamination. The present study illustrated that the combined approach is effective for ecological assessment of coastal ecosystem.
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Affiliation(s)
- Vikas Pandey
- National Institute of Ocean Technology (Ministry of Earth Sciences, Govt. of India), Chennai 600100, India.
| | - S Venkatnarayanan
- National Institute of Ocean Technology (Ministry of Earth Sciences, Govt. of India), Chennai 600100, India
| | - P Sathish Kumar
- National Institute of Ocean Technology (Ministry of Earth Sciences, Govt. of India), Chennai 600100, India
| | - Krupa Ratnam
- National Institute of Ocean Technology (Ministry of Earth Sciences, Govt. of India), Chennai 600100, India
| | - Dilip Kumar Jha
- National Institute of Ocean Technology (Ministry of Earth Sciences, Govt. of India), Chennai 600100, India.
| | - S Rajaguru
- National Institute of Ocean Technology (Ministry of Earth Sciences, Govt. of India), Chennai 600100, India
| | - G Dharani
- National Institute of Ocean Technology (Ministry of Earth Sciences, Govt. of India), Chennai 600100, India.
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13
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Miranda DA, Benskin JP, Awad R, Lepoint G, Leonel J, Hatje V. Bioaccumulation of Per- and polyfluoroalkyl substances (PFASs) in a tropical estuarine food web. THE SCIENCE OF THE TOTAL ENVIRONMENT 2021; 754:142146. [PMID: 33254889 DOI: 10.1016/j.scitotenv.2020.142146] [Citation(s) in RCA: 64] [Impact Index Per Article: 21.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/08/2020] [Revised: 08/30/2020] [Accepted: 08/31/2020] [Indexed: 05/20/2023]
Abstract
The biomagnification of per- and polyfluoroalkyl substances (PFASs) was investigated in a tropical mangrove food web from an estuary in Bahia, Brazil. Samples of 44 organisms (21 taxa), along with biofilm, leaves, sediment and suspended particulate matter were analyzed. Sum (∑) PFAS concentrations in biota samples were dominated by perfluorooctane sulfonate (PFOS, 93% detection frequency in tissues; 0.05 to 1.97 ng g-1 ww whole-body (wb)), followed by perfluorotridecanoate (PFTrDA, 57%; 0.01 to 0.28 ng g-1 ww wb). PFOS precursors such as perfluorooctane sulfonamide (FOSA, 54%; 0.01 to 0.32 ng g-1 ww wb) and N-ethyl perfluorooctane sulfonamide (EtFOSA; 30%; 0.01 to 0.21 ng g-1 ww wb) were also detected. PFAS accumulation profiles revealed different routes of exposure among bivalve, crustacean and fish groups. Statistics for left-censored data were used in order to minimize bias on trophic magnification factors (TMFs) calculations. TMFs >1 were observed for PFOS (linear + branched isomers), EtFOSA (linear + branched isomers), and perfluorononanoate (PFNA), and in all cases, dissimilar accumulation patterns were observed among different trophic positions. The apparent biodilution of some long-chain PFCAs through the food chain (TMF < 1) may be due to exposure from multiple PFAS sources. This is the first study investigating bioaccumulation of PFASs in a tropical food web and provides new insight on the behavior of this ubiquitous class of contaminants.
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Affiliation(s)
- Daniele A Miranda
- Centro Interdisciplinar de Energia e Ambiente (CIEnAm) and Inst. de Química, Universidade Federal da Bahia, 41170-115 Salvador, BA, Brazil; Department of Environmental Science, Stockholm University, Stockholm, Sweden.
| | - Jonathan P Benskin
- Department of Environmental Science, Stockholm University, Stockholm, Sweden
| | - Raed Awad
- Department of Environmental Science, Stockholm University, Stockholm, Sweden; Swedish Environmental Research Institute (IVL), Stockholm, Sweden
| | - Gilles Lepoint
- Freshwater and Oceanic sciences Unit of reSearch (FOCUS - Oceanology), University of Liege, 4000 Liege, Belgium
| | - Juliana Leonel
- Departamento de Oceanografia, Universidade Federal de Santa Catarina, 88040-900 Florianópolis, SC, Brazil
| | - Vanessa Hatje
- Centro Interdisciplinar de Energia e Ambiente (CIEnAm) and Inst. de Química, Universidade Federal da Bahia, 41170-115 Salvador, BA, Brazil
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14
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Hatje V, Andrade RLB, Jesus RM, Masqué P, Albergaria-Barbosa ACR, de Andrade JB, Santos ACSS. Historical records of mercury deposition in dated sediment cores reveal the impacts of the legacy and present-day human activities in Todos os Santos Bay, Northeast Brazil. MARINE POLLUTION BULLETIN 2019; 145:396-406. [PMID: 31590802 DOI: 10.1016/j.marpolbul.2019.06.041] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/29/2019] [Revised: 06/13/2019] [Accepted: 06/13/2019] [Indexed: 06/10/2023]
Abstract
We determined depth profiles of total mercury (T-Hg) in six 210Pb-dated sediment cores from Todos os Santos Bay to reconstruct the history of anthropogenic Hg accumulation. We also assessed superficial sediments samples from five estuaries. T-Hg concentrations (5-3500 μg kg-1) presented a large spatial and temporal variability. T-Hg concentrations in Ribeira Bay increased up to 200-fold along time, whereas the fluxes of T-Hg are substantially higher (up to 10,000 fold) than present-day wet deposition for industrialized areas. Sedimentary records indicate that a chlor-alkali plant has been the main source of Hg pollution until the present, although the T-Hg records suggest that harbor, shrimp farming, and oil refinery activities, besides Hg atmospheric depositions, are important across the bay. Sediments in the Ribeira Bay act as an important Hg sink. If sediments are eroded or disturbed, they may release Hg, thus posing a serious risk to wildlife and ecosystem health. CAPSULE: Sedimentary cores provide data on preindustrial levels and also anthropogenic fluxes of Hg for the appraisal of the magnitude, processes and potential risks of the contamination.
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Affiliation(s)
- V Hatje
- CIEnAm & Inst. de Química, Universidade Federal da Bahia, Bahia, Brazil.
| | - R L B Andrade
- CIEnAm & Inst. de Química, Universidade Federal da Bahia, Bahia, Brazil
| | - R M Jesus
- CIEnAm & Inst. de Química, Universidade Federal da Bahia, Bahia, Brazil
| | - P Masqué
- Centre for Marine Ecosystems Research, School of Science, Edith Cowan University, Joondalup, Australia; Departament de Física, Institut de Ciència i Tecnologia Ambientals, Universitat Autònoma de Barcelona, Bellaterra, Spain
| | | | - J B de Andrade
- CIEnAm & Inst. de Química, Universidade Federal da Bahia, Bahia, Brazil; SENAI-CIMATEC University Center, 41650-010 Salvador, Bahia, Brazil
| | - A C S S Santos
- CIEnAm & Inst. de Química, Universidade Federal da Bahia, Bahia, Brazil
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15
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Infrared radiation as a heat source in sample preparation of shrimp for trace element analysis. J Food Compost Anal 2019. [DOI: 10.1016/j.jfca.2019.03.014] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
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16
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Kohan A, Badbardast Z, Kohan A. Effects of shrimp effluents on mudskippers (Gobiidae: Oxudercinae) in the northern Persian Gulf. MARINE ENVIRONMENTAL RESEARCH 2018; 136:174-178. [PMID: 29478768 DOI: 10.1016/j.marenvres.2018.02.014] [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: 11/27/2017] [Revised: 01/15/2018] [Accepted: 02/18/2018] [Indexed: 06/08/2023]
Abstract
Shrimp effluents can affect environmental conditions of the receiving ecosystems, and cause noticeable alterations in the residing communities. Mudskippers, as benthic fish with limited movement, could be affected by aquaculture-induced changes in environmental factors. These changes and subsequent responses of mudskipper assemblage to them, in the northern Persian Gulf, were studied. Some physicochemical and biological characteristics of the environment in addition to density, length, weight, and condition (i.e., Fulton's condition factor) of the residing mudskipper species (i.e., Boleophthalmus dussumieri and Periophthalmus waltoni) were measured in the control and impact sites. The results showed significant increases in the organic content (TOM and BOD), chlorophyll a, pH, total nitrogen and phosphorus, and fine particle fraction of sediments and decrease in DO due to shrimp effluent discharge. Furthermore, significant increases in the studied mudskippers' biological properties, except density of P. waltoni, in the sites receiving effluents were observed. It appears that increases in the fauna and flora of the impact sites have provided mudskippers with more food sources, and increased their lengths, weights, and densities (i.e., the overall environmental changes seem to be desirable for the mudskippers). The higher condition factors of the individuals inhabiting polluted sites indicate that not only these species can endure adverse changes in environmental circumstances, but also are in healthy physical conditions.
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Affiliation(s)
- Ahmadreza Kohan
- Department of Aquatic Biotechnology, Faculty of Life Sciences and Biotechnology, Shahid Beheshti University, G. C., Evin, Tehran, Islamic Republic of Iran.
| | - Zahra Badbardast
- Department of Aquatic Biotechnology, Faculty of Life Sciences and Biotechnology, Shahid Beheshti University, G. C., Evin, Tehran, Islamic Republic of Iran
| | - Aliasghar Kohan
- Department of Natural Resources and Environment, College of Agriculture, Shiraz University, Islamic Republic of Iran
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17
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Andrade RLB, Hatje V, Masqué P, Zurbrick CM, Boyle EA, Santos WPC. Chronology of anthropogenic impacts reconstructed from sediment records of trace metals and Pb isotopes in Todos os Santos Bay (NE Brazil). MARINE POLLUTION BULLETIN 2017; 125:459-471. [PMID: 28800910 DOI: 10.1016/j.marpolbul.2017.07.053] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/26/2017] [Revised: 06/19/2017] [Accepted: 07/22/2017] [Indexed: 05/13/2023]
Abstract
The evolution of the impacts of anthropogenic activities in Todos os Santos Bay was evaluated by profiles of trace metals and Pb isotopes determined in sediment cores. Fluxes of metals increased up to 12, 4 and 2 times for Cu, Pb, and Zn, respectively, compared to those recorded in the beginning of the 20th century. Stable Pb isotopes identified a decommissioned lead smelter and burning of fossil fuels as the main sources of Pb. Most metals showed minor to moderate enrichment factors (EF<4), but Cu and Pb were highly enriched (EF=28 and 6, respectively) at the Aratu harbor. Temporal changes in sediments were associated to different activities, namely Pb smelting, burning of fossil fuels, maritime traffic, petroleum related activities, inputs of domestic effluents, and changes in land uses. The effects of the implementation of environmental policies to improve the waters of the bay could not be identified in the evaluated cores.
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Affiliation(s)
- R L B Andrade
- Centro Interdisciplinar de Energia e Ambiente (CIENAM), Instituto de Química, Universidade Federal da Bahia, Rua Barão de Jeremoabo, s/n, Ondina, Salvador, BA 40170-290, Brazil.
| | - V Hatje
- Centro Interdisciplinar de Energia e Ambiente (CIENAM), Instituto de Química, Universidade Federal da Bahia, Rua Barão de Jeremoabo, s/n, Ondina, Salvador, BA 40170-290, Brazil
| | - P Masqué
- Centre for Marine Ecosystems Research, School of Science, Edith Cowan University, Joondalup, WA 6027, Australia; Institut de Ciència i Tecnologia Ambientals, Departament de Física, Universitat Autònoma de Barcelona, 08193 Bellaterra, Spain; Oceans Institute & School of Physics, The University of Western Australia, Crawley, WA 6009, Australia
| | - C M Zurbrick
- Earth, Atmospheric, and Planetary Sciences (EAPS), Massachusetts Institute of Technology, Cambridge, MA 02139, USA
| | - E A Boyle
- Earth, Atmospheric, and Planetary Sciences (EAPS), Massachusetts Institute of Technology, Cambridge, MA 02139, USA
| | - W P C Santos
- Departamento de Química (DAQ-SSA), Instituto Federal da Bahia, Salvador, BA 40301-015, Brazil
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18
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Pedreira RMA, Barros F, Farias CDO, Wagener AL, Hatje V. A tropical bay as a reference area defined by multiple lines of evidences. MARINE POLLUTION BULLETIN 2017; 123:291-303. [PMID: 28847632 DOI: 10.1016/j.marpolbul.2017.08.041] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/03/2017] [Revised: 07/26/2017] [Accepted: 08/16/2017] [Indexed: 06/07/2023]
Abstract
References areas are sites that have undergone little or no anthropogenic impact and therefore represent the natural state of an environment. The objective of this study was to test if the Camamu Bay (CB), Bahia, can be used as a reference area for tropical coastal environments. Trace and major elements, polycyclic aromatic hydrocarbons (PAH), and the structure of the benthic macrofauna were determined. To compare the studied sites and identify the possible occurrence of anomalous concentrations, trace elements were normalized by Al and linear regressions were also performed. For all trace elements (except Cu), regressions showed a significant correlation (p<0.05) and few outliers (<3% of cases), showing that the concentrations found represent natural values for this bay. In the case of Cu, the highest concentrations were found near small municipalities, which may be associated with domestic sewage. About 60% of the organic compounds occurred at levels below the limit of quantification (<0.26ngg-1). The sum of PAHs was low for all stations, ranging from 1.17 to 313ngg-1. The benthic assemblages also indicated that the CB is a healthy, well-preserved ecosystem that deserves conservation efforts. The integrated use of geochemical and biotic data supported the use of CB as a reference area. Capsule: Organic and inorganic contaminants together with macrobenthic assemblages indicated that Camamu Bay is a pristine, tropical reference area.
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Affiliation(s)
- R M A Pedreira
- Centro Interdisciplinar de Energia e Ambiente (CIENAM), Instituto de Química, Universidade Federal da Bahia, Rua Barão de Jeremoabo, s/n, Ondina, 40170-290 Salvador, BA, Brazil
| | - F Barros
- Laboratório de Ecologia Bentônica (LEB), Instituto de Biologia, Universidade Federal da Bahia, Rua Barão de Jeremoabo, s/n, Ondina, 40170-115 Salvador, BA, Brazil
| | - C de O Farias
- Laboratório de Geoquímica Orgânica Marinha (LAGOM), Faculdade de Oceanografia, Universidade do Estado do Rio de Janeiro, 20550-900 Rio de Janeiro, RJ, Brazil
| | - A L Wagener
- LABMAM, Departamento de Química, Pontifícia Universidade Católica do Rio de Janeiro, 22453-900 Rio de Janeiro, Brazil
| | - V Hatje
- Centro Interdisciplinar de Energia e Ambiente (CIENAM), Instituto de Química, Universidade Federal da Bahia, Rua Barão de Jeremoabo, s/n, Ondina, 40170-290 Salvador, BA, Brazil.
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19
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León-Cañedo JA, Alarcón-Silvas SG, Fierro-Sañudo JF, Mariscal-Lagarda MM, Díaz-Valdés T, Páez-Osuna F. Assessment of environmental loads of Cu and Zn from intensive inland shrimp aquaculture. ENVIRONMENTAL MONITORING AND ASSESSMENT 2017; 189:69. [PMID: 28116601 DOI: 10.1007/s10661-017-5783-z] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/09/2016] [Accepted: 01/11/2017] [Indexed: 06/06/2023]
Abstract
An experiment was developed to simulate inland shrimp farming using diluted seawater (1.9 g L-1) containing 75 shrimps (Litopenaeus vannamei) per square meter during a growth cycle of 120 days. In this study, the environmental loads of copper and zinc were estimated and compared to anthropogenic sources and shrimp aquacultures in other locations. Both metals resulted primarily from feeding, which accounted for 91.8% of Cu and 97.0% of Zn. Concentrations of Cu (110.8 ± 11.8 μg g-1) and Zn (69.0 ± 0.7 μg g-1) measured in the harvested shrimp had higher Cu and lower Zn concentrations compared to those reported for farmed shrimp from Brazil and Mexico. Clearly, organic sludge was the main route of removal for both metals (Cu 46.2%; Zn 92.6%). The annual environmental loads estimated for inland shrimp aquaculture were 598 ± 74 g Cu ha-1 and 5080 ± 328 g Zn ha-1.
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Affiliation(s)
- J A León-Cañedo
- Posgrado en Ciencias Agropecuarias, Colegio de Ciencias Agropecuarias, Universidad Autónoma de Sinaloa, Boulevard San Ángel s/n, Fraccionamiento San Benito, Predio Las Coloradas, 80000, Culiacán, Sinaloa, México
| | - S G Alarcón-Silvas
- Posgrado en Ciencias en Recursos Acuáticos, Facultad de Ciencias del Mar, Universidad Autónoma de Sinaloa, Av. de los Deportes s/n Ciudad Universitaria, 82017, Mazatlán, Sinaloa, México
| | - J F Fierro-Sañudo
- Posgrado en Ciencias Agropecuarias, Colegio de Ciencias Agropecuarias, Universidad Autónoma de Sinaloa, Boulevard San Ángel s/n, Fraccionamiento San Benito, Predio Las Coloradas, 80000, Culiacán, Sinaloa, México
| | - M M Mariscal-Lagarda
- Unidad Académica Benito Juárez, Universidad Estatal de Sonora, Fraternidad, Centro s/n, 85294, Villa Juárez, Sonora, México
| | - T Díaz-Valdés
- Facultad de Agronomía, Universidad Autónoma de Sinaloa, Km. 17.5, Carretera Culiacán-El Dorado, 80000, Culiacán, Sinaloa, México
| | - F Páez-Osuna
- Unidad Académica Mazatlán, Instituto de Ciencias del Mar y Limnología, Universidad Nacional Autónoma de México, Joel Montes Camarena s/n, 82040, Mazatlán, Sinaloa, México.
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20
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Hatje V, de Souza MM, Ribeiro LF, Eça GF, Barros F. Detection of environmental impacts of shrimp farming through multiple lines of evidence. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2016; 219:672-684. [PMID: 27376996 DOI: 10.1016/j.envpol.2016.06.056] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/01/2016] [Revised: 06/22/2016] [Accepted: 06/23/2016] [Indexed: 06/06/2023]
Abstract
In order to evaluate the impact of semi-intensive shrimp farming, comparisons between Control and Impact areas were made based on multiple lines of evidence using an asymmetrical design. Water and sediment samples were collected in four shrimp farms located in Todos os Santos Bay, Bahia, Brazil. Nutrients, trace elements and macrobenthic assemblages were evaluated using uni- and multivariate analyzes. Significant differences were observed between Impact and Control areas for the water column dataset (i.e., ancillary variables, SPM, dissolved nutrients and major and trace elements in SPM), whereas no significant differences were observed for the chemistry of sediments. Macrobenthic assemblages were negatively affected by shrimp farm activities. Impacted sites presented the lowest abundance, richness and different structure of macrofaunal benthic assemblages. Farms clearly produced negative impacts in the Todos os Santos Bay. This conclusion was only possible to be reached through the use of multiple lines of evidence. Chemistry and benthic assemblages data combined produced a better description of the quality and impacts of the evaluated environments. Different conclusions would have been reached if chemistry and ecology results were studied separately vs. together.
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Affiliation(s)
- Vanessa Hatje
- Centro Interdisciplinar de Energia e Ambiente (CIENAM), Instituto de Química, Universidade Federal da Bahia, Rua Barão de Jeremoabo, s/n, Ondina, 40170-290, Salvador, BA, Brazil.
| | - Manuel M de Souza
- Centro Interdisciplinar de Energia e Ambiente (CIENAM), Instituto de Química, Universidade Federal da Bahia, Rua Barão de Jeremoabo, s/n, Ondina, 40170-290, Salvador, BA, Brazil.
| | - Luisa F Ribeiro
- Centro Interdisciplinar de Energia e Ambiente (CIENAM), Instituto de Química, Universidade Federal da Bahia, Rua Barão de Jeremoabo, s/n, Ondina, 40170-290, Salvador, BA, Brazil; Laboratório de Ecologia Bentônica (LEB), Instituto de Biologia, Universidade Federal da Bahia, Rua Barão de Jeremoabo, s/n, Ondina, 40170-115, Salvador, BA, Brazil.
| | - Gilmara F Eça
- Centro Interdisciplinar de Energia e Ambiente (CIENAM), Instituto de Química, Universidade Federal da Bahia, Rua Barão de Jeremoabo, s/n, Ondina, 40170-290, Salvador, BA, Brazil; Departamento de Ciências Exatas e Tecnológicas, Universidade Federal do Recôncavo da Bahia (UFRB), Rui Barbosa, 710, Centro, Cruz das Almas, Bahia, Brazil.
| | - Francisco Barros
- Laboratório de Ecologia Bentônica (LEB), Instituto de Biologia, Universidade Federal da Bahia, Rua Barão de Jeremoabo, s/n, Ondina, 40170-115, Salvador, BA, Brazil.
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