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Minaz M, Ipek ZZ, Bayçelebi E, Oral M, Mutlu T, Karsli B, Kayis S. Effect of parasitic infection on microplastic ingestion in a native leuciscid hybrid species (Alburnus derjugini x Squalius orientalis) from Kürtün Dam Lake, Türkiye. CHEMOSPHERE 2024; 363:142978. [PMID: 39084304 DOI: 10.1016/j.chemosphere.2024.142978] [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: 03/01/2024] [Revised: 07/24/2024] [Accepted: 07/29/2024] [Indexed: 08/02/2024]
Abstract
Microplastic (MP) pollution is currently one of the most serious environmental issues. MPs were investigated in the Kürtün Dam Lake in healthy individuals of the native leuciscid hybrid (Alburnus derjugini x Squalius orientalis) species and individuals infected with the Ligula intestinalis parasite. Although MP abundance appeared to be higher in non-infected fish (NIF) than in L. intestinalis (L) and infected fish (IF), the MP abundance in IF was higher, because the parasite theoretically belongs to IF. In addition to the observation of MPs in the gastrointestinal tract (GIT) of fish, the diffusion of MPs by parasites settled in the body cavity indicates that MPs are not only present in the GIT. Therefore, predation on existing fish by birds causes MP dispersion. In the present study, the most common MP shape was fiber (100% for NIF and IF, 85.7% for L), the MP color was black (57.1% for IF and L) and orange (50% for NIF), and the polymer type was polyamide (57.1% for IF, 50% for NIF) and polyethylene terephthalate (28.5% for L). These MP compositions led us to believe that textile effluents and aquaculture operations in dam lakes could be sources of pollution. Therefore, this study provides insights for future research to elucidate the connection between MP consumption and parasite infection.
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Affiliation(s)
- Mert Minaz
- Faculty of Fisheries, Recep Tayyip Erdoğan University, 53100, Rize, Turkey.
| | - Zeynep Zehra Ipek
- Faculty of Fisheries, Recep Tayyip Erdoğan University, 53100, Rize, Turkey
| | - Esra Bayçelebi
- Faculty of Fisheries, Recep Tayyip Erdoğan University, 53100, Rize, Turkey
| | - Munevver Oral
- Faculty of Fisheries, Recep Tayyip Erdoğan University, 53100, Rize, Turkey
| | - Tanju Mutlu
- Vocational School of Technical Sciences, Recep Tayyip Erdogan University, 53100, Rize, Turkey
| | - Baris Karsli
- Faculty of Fisheries, Recep Tayyip Erdoğan University, 53100, Rize, Turkey
| | - Sevki Kayis
- Faculty of Fisheries, Recep Tayyip Erdoğan University, 53100, Rize, Turkey
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Minaz M, Kurtoğlu İZ. Long-term exposure of endangered Danube sturgeon (Acipenser gueldenstaedtii) to bisphenol A (BPA): growth, behavioral, histological, genotoxic, and hematological evaluation. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2024; 31:30836-30848. [PMID: 38622415 PMCID: PMC11096217 DOI: 10.1007/s11356-024-33168-2] [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: 08/24/2023] [Accepted: 03/27/2024] [Indexed: 04/17/2024]
Abstract
Danube sturgeon (Acipenser gueldenstaedtii) which is identified as endangered species can be exposed to pollutants such as bisphenol A (BPA) that have a disruptive effect on the endocrine system at any time. Starting from this motivation, the current study focused on BPA toxicity in A. gueldenstaedtii juvenile individuals and its adverse effects in sub-lethal concentration. The median lethal concentration (LC50) of BPA was 5.03 mg/L in 96th hour. In the chronic period, 0.625 mg/L and 1.25 mg/L BPA concentrations were evaluated based on the result of acute study. Accordingly, growth performance was significantly decreased in BPA groups (1.25 mg/L BPA group was significantly lowest) compared to control (p < 0.05). In the acute period, behavioral disorders were standing at the bottom/corner of tank, slowing and stopping of gill movement, decreased response to stimuli, and death, respectively. While vacuolization was severe in the liver tissue of the fish in the acute period, intense necrosis and melanomacrophage centers were observed in the chronic period. In terms of genotoxicity, longer DNA migration was observed in all groups exposed to BPA than in the control group. In addition, lower erythrocyte and hemoglobin were observed in the BPA groups compared to control. As a result, the current study revealed toxic effect of BPA on A. gueldenstaedtii juvenile individuals and its negative results on fish physiology.
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Affiliation(s)
- Mert Minaz
- Department of Aquaculture, Faculty of Fisheries, Recep Tayyip Erdoğan University, Rize, Turkey.
| | - İlker Zeki Kurtoğlu
- Department of Aquaculture, Faculty of Fisheries, Recep Tayyip Erdoğan University, Rize, Turkey
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3
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Dias M, Pereira M, Marmelo I, Anacleto P, Pousão-Ferreira P, Cunha SC, Fernandes JO, Petrarca M, Marques A, Martins M, Maulvault AL. Ecotoxicological responses of juvenile Sparus aurata to BDE-99 and BPA exposure: A multi-biomarker approach integrating immune, endocrine and oxidative endpoints. THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 920:170989. [PMID: 38365038 DOI: 10.1016/j.scitotenv.2024.170989] [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: 09/25/2023] [Revised: 01/31/2024] [Accepted: 02/13/2024] [Indexed: 02/18/2024]
Abstract
Pentabromodiphenyl ether (BDE-99) and bisphenol A (BPA) are synthetic organic compounds present in several daily use products. Due to their physicochemical properties, they are ubiquitously present in aquatic ecosystems and considered highly persistent. Recent evidence has confirmed that both emerging compounds are toxic to humans and terrestrial mammals eliciting a wide range of detrimental effects at endocrine and immune levels. However, the ecotoxicological responses that they can trigger in vertebrate marine species have not yet been established. Hence, this study aimed to investigate the ecotoxicological responses of juvenile Sparus aurata upon chronic (28 days) dietary exposure to BDE-99 and BPA (alone and combined) following an integrated multi-biomarker approach that combined fitness indicators (Fulton's K and splenosomatic indexes) with endocrine [cortisol, 17β-estradiol (E2), 11-ketotestosterone (11-KT) concentrations] and immune (peroxidase and antiprotease activities) endpoints in fish plasma, and oxidative stress [superoxide dismutase (SOD), catalase (CAT) and glutathione S-transferase (GST) activities, and lipid peroxidation (LPO)] endpoints in the fish spleen. The mixture of BDE-99 and BPA yielded the highest IBR index value in both plasma and spleen biomarkers, therefore, suggesting that the effects of these compounds are more severe when they act together. Endocrine biomarkers were the most responsive in the three contaminated treatments. Fitness indicators were not affected by the individual nor the interactive effects of BDE-99 and BPA. These findings highlight the relevance of accounting for the interactive effects of emerging chemical contaminants and integrating responses associated with distinct biological pathways when investigating their impacts on marine life, as such a multi-biomarker approach provides a broader, more realistic and adequate perspective of challenges faced by fish in a contaminated environment.
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Affiliation(s)
- Marta Dias
- UCIBIO - Applied Molecular Biosciences Unit, NOVA School of Science and Technology, NOVA University of Lisbon, Campus de Caparica, 2829-516 Caparica, Portugal; MARE - Marine and Environmental Sciences Centre & ARNET - Aquatic Research Network, Faculdade de Ciências, Universidade de Lisboa, Campo Grande, 1749-016 Lisboa, Portugal.
| | - Marta Pereira
- MARE - Marine and Environmental Sciences Centre & ARNET - Aquatic Research Network, Department of Environmental Sciences and Engineering, NOVA School of Science and Technology, NOVA University of Lisbon, Campus de Caparica, 2829-516 Caparica, Portugal
| | - Isa Marmelo
- UCIBIO - Applied Molecular Biosciences Unit, NOVA School of Science and Technology, NOVA University of Lisbon, Campus de Caparica, 2829-516 Caparica, Portugal; IPMA, I.P., Portuguese Institute for the Sea and Atmosphere, I.P., Division of Aquaculture, Upgrading and Bioprospection, Av. Doutor Alfredo Magalhães Ramalho 6, 1495-165 Lisboa, Portugal; CIIMAR, Interdisciplinary Centre of Marine and Environmental Research, University of Porto, Terminal de Cruzeiros do Porto de Leixões, Av. General Norton de Matos S/N, 4450-208 Matosinhos, Portugal
| | - Patrícia Anacleto
- MARE - Marine and Environmental Sciences Centre & ARNET - Aquatic Research Network, Faculdade de Ciências, Universidade de Lisboa, Campo Grande, 1749-016 Lisboa, Portugal; IPMA, I.P., Portuguese Institute for the Sea and Atmosphere, I.P., Division of Aquaculture, Upgrading and Bioprospection, Av. Doutor Alfredo Magalhães Ramalho 6, 1495-165 Lisboa, Portugal
| | - Pedro Pousão-Ferreira
- IPMA-EPPO - Aquaculture Research Station, Portuguese Institute for the Sea and Atmosphere, Avenida do Parque Natural da Ria Formosa, 8700-194 Olhão, Portugal
| | - Sara C Cunha
- LAQV-REQUIMTE, Laboratory of Bromatology and Hydrology, Faculty of Pharmacy, University of Porto, Rua Jorge de Viterbo Ferreira 228, 4050-313 Porto, Portugal
| | - José O Fernandes
- LAQV-REQUIMTE, Laboratory of Bromatology and Hydrology, Faculty of Pharmacy, University of Porto, Rua Jorge de Viterbo Ferreira 228, 4050-313 Porto, Portugal
| | - Mateus Petrarca
- LAQV-REQUIMTE, Laboratory of Bromatology and Hydrology, Faculty of Pharmacy, University of Porto, Rua Jorge de Viterbo Ferreira 228, 4050-313 Porto, Portugal
| | - António Marques
- IPMA, I.P., Portuguese Institute for the Sea and Atmosphere, I.P., Division of Aquaculture, Upgrading and Bioprospection, Av. Doutor Alfredo Magalhães Ramalho 6, 1495-165 Lisboa, Portugal; CIIMAR, Interdisciplinary Centre of Marine and Environmental Research, University of Porto, Terminal de Cruzeiros do Porto de Leixões, Av. General Norton de Matos S/N, 4450-208 Matosinhos, Portugal
| | - Marta Martins
- MARE - Marine and Environmental Sciences Centre & ARNET - Aquatic Research Network, Department of Environmental Sciences and Engineering, NOVA School of Science and Technology, NOVA University of Lisbon, Campus de Caparica, 2829-516 Caparica, Portugal
| | - Ana Luísa Maulvault
- UCIBIO - Applied Molecular Biosciences Unit, NOVA School of Science and Technology, NOVA University of Lisbon, Campus de Caparica, 2829-516 Caparica, Portugal; MARE - Marine and Environmental Sciences Centre & ARNET - Aquatic Research Network, Faculdade de Ciências, Universidade de Lisboa, Campo Grande, 1749-016 Lisboa, Portugal; IPMA, I.P., Portuguese Institute for the Sea and Atmosphere, I.P., Division of Aquaculture, Upgrading and Bioprospection, Av. Doutor Alfredo Magalhães Ramalho 6, 1495-165 Lisboa, Portugal; Associate Laboratory i4HB Institute for Health and Bioeconomy, NOVA School of Science and Technology, NOVA University of Lisbon, Caparica, Portugal
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Mutlu T, Minaz M, Baytaşoğlu H, Gedik K. Monitoring of microplastic pollution in sediments along the Çoruh River Basin, NE Türkiye. JOURNAL OF CONTAMINANT HYDROLOGY 2024; 263:104334. [PMID: 38493707 DOI: 10.1016/j.jconhyd.2024.104334] [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: 01/09/2024] [Revised: 02/21/2024] [Accepted: 03/12/2024] [Indexed: 03/19/2024]
Abstract
Microplastic (MP) pollution has become a research issue on the world agenda. Monitoring studies are essential for MP content in aquatic environments since it is the final accumulation point. The present study focused on MP characterizations in sediment samples taken from 20 different stations on the Çoruh River, the major river in the North East of Türkiye. Accordingly, the potential anthropogenic pollution from settlements near the four stations (2, 15, 18, and 20) exceeding 400 MP kg-1 was estimated. On the other hand, stations (1, 3, 9, 11, and 13) far from settlements with quite low MP abundance were also observed. The polymer structures of the detected MPs are generally PE and PET, and their shapes are mostly fiber. This situation raises suspicion that MPs originate from primary use waste such as water bottles and packaging materials. In general, the fiber MPs are smaller than the fragments because of the river's high water flow rate and the low strength of the fiber MPs. In light of these results, the current monitoring data in the region will create awareness and guidance regarding MP pollution in settlements.
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Affiliation(s)
- Tanju Mutlu
- Vocational School of Technical Sciences, Recep Tayyip Erdogan University, 53100 Rize, Türkiye
| | - Mert Minaz
- Department of Aquaculture, Faculty of Fisheries, Recep Tayyip Erdoğan University, Rize, Türkiye.
| | - Hazel Baytaşoğlu
- Department of Aquaculture, Faculty of Fisheries, Recep Tayyip Erdoğan University, Rize, Türkiye
| | - Kenan Gedik
- Vocational School of Technical Sciences, Recep Tayyip Erdogan University, 53100 Rize, Türkiye.
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Mutlu T, Minaz M, Baytaşoğlu H, Gedik K. Microplastic pollution in stream sediments discharging from Türkiye's eastern Black sea basin. CHEMOSPHERE 2024; 352:141496. [PMID: 38373447 DOI: 10.1016/j.chemosphere.2024.141496] [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: 06/25/2023] [Revised: 11/29/2023] [Accepted: 02/16/2024] [Indexed: 02/21/2024]
Abstract
Rivers are the principal route for terrestrial microplastics to reach the marine environment. The Black Sea exhibits a notable representation because it has a drainage zone almost six times the surface area and is semi-closed, meaning that microplastics tend to gather there. To mitigate MP pollution, it is necessary to identify the contamination sources and then raise public awareness. Thus, the current study focused on the MP presence in the sediment of streams running into the SE Black Sea. 594 MPs were observed in sediment samples from 16 stations along the 350 km coastline. The abundance of MP was higher, particularly in streams that pass through locations with high tourism and industrial activity levels. Detected MPs ranged between 0.1 and 5 mm, while the overall density was smaller than 1 mm. Fragments and fiber MPs were regularly detected, although the presence of films was rarely recorded. The polymer structures that were most commonly observed in the analyzed pollutants were PET and PE. The current study uncovered MP contamination in stream sediments originating from Türkiye's Eastern Black Sea basin and might be a baseline work for future inland water studies.
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Affiliation(s)
- Tanju Mutlu
- Vocational School of Technical Sciences, Recep Tayyip Erdogan University, 53100, Rize, Turkey
| | - Mert Minaz
- Department of Aquaculture, Faculty of Fisheries, Recep Tayyip Erdoğan University, Rize, Turkey.
| | - Hazel Baytaşoğlu
- Department of Aquaculture, Faculty of Fisheries, Recep Tayyip Erdoğan University, Rize, Turkey
| | - Kenan Gedik
- Vocational School of Technical Sciences, Recep Tayyip Erdogan University, 53100, Rize, Turkey.
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Yi J, Ma Y, Ruan J, You S, Ma J, Yu H, Zhao J, Zhang K, Yang Q, Jin L, Zeng G, Sun D. The invisible Threat: Assessing the reproductive and transgenerational impacts of micro- and nanoplastics on fish. ENVIRONMENT INTERNATIONAL 2024; 183:108432. [PMID: 38219542 DOI: 10.1016/j.envint.2024.108432] [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: 11/20/2023] [Revised: 12/24/2023] [Accepted: 01/05/2024] [Indexed: 01/16/2024]
Abstract
Micro- and nanoplastics (MNPs), emerging as pervasive environmental pollutants, present multifaceted threats to diverse ecosystems. This review critically examines the ability of MNPs to traverse biological barriers in fish, leading to their accumulation in gonadal tissues and subsequent reproductive toxicity. A focal concern is the potential transgenerational harm, where offspring not directly exposed to MNPs exhibit toxic effects. Characterized by extensive specific surface areas and marked surface hydrophobicity, MNPs readily adsorb and concentrate other environmental contaminants, potentially intensifying reproductive and transgenerational toxicity. This comprehensive analysis aims to provide profound insights into the repercussions of MNPs on fish reproductive health and progeny, highlighting the intricate interplay between MNPs and other pollutants. We delve into the mechanisms of MNPs-induced reproductive toxicity, including gonadal histopathologic alterations, oxidative stress, and disruptions in the hypothalamic-pituitary-gonadal axis. The review also underscores the urgency for future research to explore the size-specific toxic dynamics of MNPs and the long-term implications of chronic exposure. Understanding these aspects is crucial for assessing the ecological risks posed by MNPs and formulating strategies to safeguard aquatic life.
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Affiliation(s)
- Jia Yi
- State and Local Joint Engineering Research Center for Ecological Treatment Technology of Urban Water Pollution, School of Life and Environmental Science, Wenzhou University, Wenzhou 325035, China
| | - Yilei Ma
- State and Local Joint Engineering Research Center for Ecological Treatment Technology of Urban Water Pollution, School of Life and Environmental Science, Wenzhou University, Wenzhou 325035, China
| | - Jing Ruan
- Institute of Life Sciences & Biomedical Collaborative Innovation Center of Zhejiang Province, Wenzhou University, Wenzhou 325035, China
| | - Si You
- State and Local Joint Engineering Research Center for Ecological Treatment Technology of Urban Water Pollution, School of Life and Environmental Science, Wenzhou University, Wenzhou 325035, China
| | - Jiahui Ma
- Institute of Life Sciences & Biomedical Collaborative Innovation Center of Zhejiang Province, Wenzhou University, Wenzhou 325035, China
| | - Haiyang Yu
- State and Local Joint Engineering Research Center for Ecological Treatment Technology of Urban Water Pollution, School of Life and Environmental Science, Wenzhou University, Wenzhou 325035, China
| | - Jing Zhao
- State and Local Joint Engineering Research Center for Ecological Treatment Technology of Urban Water Pollution, School of Life and Environmental Science, Wenzhou University, Wenzhou 325035, China
| | - Kun Zhang
- Bioengineering College of Chongqing University, Chongqing, 400044, China
| | - Qinsi Yang
- Wenzhou Institute, University of Chinese Academy of Sciences, Wenzhou 325000, China
| | - Libo Jin
- Institute of Life Sciences & Biomedical Collaborative Innovation Center of Zhejiang Province, Wenzhou University, Wenzhou 325035, China
| | - Guoming Zeng
- Intelligent Construction Technology Application Service Center, School of Architecture and Engineering, Chongqing City Vocational College, Chongqing 402160, China
| | - Da Sun
- State and Local Joint Engineering Research Center for Ecological Treatment Technology of Urban Water Pollution, School of Life and Environmental Science, Wenzhou University, Wenzhou 325035, China.
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Er A, Minaz M, İpek ZZ, Ak K, Kurtoğlu İZ, Kayış Ş. Assessment of hematological indicators, histological alterations, and DNA damage in Danube sturgeon (Acipenser gueldenstaedtii) exposed to the organophosphate malathion. ENVIRONMENTAL TOXICOLOGY AND PHARMACOLOGY 2023; 104:104304. [PMID: 37890807 DOI: 10.1016/j.etap.2023.104304] [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: 07/04/2023] [Accepted: 10/25/2023] [Indexed: 10/29/2023]
Abstract
This study focused on organophosphate malathion toxicity in Danube sturgeon (Acipenser gueldenstaedtii) and its negative effects in sub-lethal concentration. In this context, the LC50 value of fish exposed to five different concentrations and two different sub-lethal concentrations depending on the LC50 value were considered. Accordingly, LC50 of malathion for 96 h was 3.24 mg L-1. In leukocyte (WBC) and hemoglobin (HGB) such as hematological indicators, significant differences were observed in sub-lethal concentration (One-eighth of the LC50 =0.4 mg L-1). In addition, serious histological alterations were observed in the gill and liver tissues after both acute (96 h) and chronic periods (28 days). While epithelial lifting and hyperplasia were the most prominent lesions in the gill, intense vacuolization were observed in the liver. In addition, circulatory disturbances, regressive changes, and progressive changes in the gill and circulatory disturbances and inflammation in the liver were significantly higher for the chronic period. Finally, significantly higher DNA damage was detected in fish exposed malathion in the chronic period compared to the control group. In conclusion, the present study has proven that malathion has a hematological, histological and genotoxic effect on the endangered species A. gueldenstaedtii. Thus, the current study will motivate for residue studies on A. gueldenstaedtii and trigger conservation strategies for local governments.
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Affiliation(s)
- Akif Er
- Department of Aquaculture, Faculty of Fisheries, Recep Tayyip Erdoğan University, Rize, Turkey
| | - Mert Minaz
- Department of Aquaculture, Faculty of Fisheries, Recep Tayyip Erdoğan University, Rize, Turkey.
| | - Zeynep Zehra İpek
- Department of Aquaculture, Faculty of Fisheries, Recep Tayyip Erdoğan University, Rize, Turkey
| | - Kübra Ak
- Department of Aquaculture, Faculty of Fisheries, Recep Tayyip Erdoğan University, Rize, Turkey
| | - İlker Zeki Kurtoğlu
- Department of Aquaculture, Faculty of Fisheries, Recep Tayyip Erdoğan University, Rize, Turkey
| | - Şevki Kayış
- Department of Aquaculture, Faculty of Fisheries, Recep Tayyip Erdoğan University, Rize, Turkey
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Onay H, Karslı B, Minaz M, Dalgıç G. Seasonal monitoring of microplastic pollution in the Southeast Black Sea: An example of red mullet (Mullus barbatus) gastrointestinal tracts. MARINE POLLUTION BULLETIN 2023; 191:114886. [PMID: 37043931 DOI: 10.1016/j.marpolbul.2023.114886] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/26/2022] [Revised: 03/16/2023] [Accepted: 03/24/2023] [Indexed: 05/13/2023]
Abstract
This study investigated seasonal presence of microplastic (MP) in gastrointestinal tracts of red mullet (Mullus barbatus) sampled from the Southeast Black Sea Region. A total of 335 MPs were detected in 120 individuals. While the most MP was observed in the winter and autumn seasons, quite few MPs were found in the summer and spring seasons. MP size did not show significant difference among seasons. While all of the MPs in the autumn and spring and most of the MPs in the winter were fiber-shaped, most of the MPs in the summer were fragments. The most observed MP color for all seasons was white. While polymer structures did not show much variation in spring and summer, six different polymers were determined for both autumn and winter. In general, less MPs were detected during fishing ban period (summer) and the characteristic properties of the detected MPs suggest a MP pollution in the region due to intense fishing activities.
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Affiliation(s)
- Hatice Onay
- Faculty of Fisheries, Recep Tayyip Erdoğan University, Rize, Turkey
| | - Barış Karslı
- Faculty of Fisheries, Recep Tayyip Erdoğan University, Rize, Turkey
| | - Mert Minaz
- Faculty of Fisheries, Recep Tayyip Erdoğan University, Rize, Turkey.
| | - Göktuğ Dalgıç
- Faculty of Fisheries, Recep Tayyip Erdoğan University, Rize, Turkey
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Onay H, Minaz M, Ak K, Er A, Emanet M, Karslı B, Bilgin S. Decade of microplastic alteration in the southeastern black sea: An example of seahorse gastrointestinal tracts. ENVIRONMENTAL RESEARCH 2023; 218:115001. [PMID: 36481368 DOI: 10.1016/j.envres.2022.115001] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/18/2022] [Revised: 12/01/2022] [Accepted: 12/03/2022] [Indexed: 06/17/2023]
Abstract
Unconscious and excessive use of plastic supports the diversity and abundance of microplastics (MPs) in marine environments. As a result of MP exposure, organisms in the marine environment are faced with adverse scenarios up to death. In this study, ten-year MP composition was investigated in gastrointestinal tracts (GITs) of low-mobility seahorses (90 individuals per period) from the Southeastern Black Sea. Seahorse GITs sampled during both 2012 and 2022 contain 102 and 135 MP items, respectively. The number of MPs per unit individual seahorse and unit seahorse weight was higher in the 2022 period. On the other hands, no significant differences were observed between the MP lengths of both periods. The majority of MPs in both sample periods were materials shorter than 1000 μm. Of the eight found synthetic polymers, five belonged to the 2012 period, while seven were observed during the 2022 period. Additionally, the most abundant synthetic polymer for both periods is polyvinyl stearate (PVS). As a result, 43% of the total plastic material belonged to the 2012 period, while 57% was observed in the 2022 period. Considering both the diversity of polymers and the abundance of plastics, the region was adversely affected by plastic materials in the 2022 period.
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Affiliation(s)
- Hatice Onay
- Faculty of Fisheries, Recep Tayyip Erdoğan University, Rize, Turkey
| | - Mert Minaz
- Faculty of Fisheries, Recep Tayyip Erdoğan University, Rize, Turkey.
| | - Kübra Ak
- Faculty of Fisheries, Recep Tayyip Erdoğan University, Rize, Turkey
| | - Akif Er
- Faculty of Fisheries, Recep Tayyip Erdoğan University, Rize, Turkey
| | - Muhammet Emanet
- Faculty of Fisheries, Recep Tayyip Erdoğan University, Rize, Turkey
| | - Barış Karslı
- Faculty of Fisheries, Recep Tayyip Erdoğan University, Rize, Turkey
| | - Sabri Bilgin
- Faculty of Fisheries, Sinop University, Sinop, Turkey
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