The impact of various periods of mercury exposure on the osmoregulatory and blood gas parameters of tilapia (Oreochromis niloticus)
Mercury (Hg) poses a significant risk to aquatic ecosystems and living organisms as a result of human activities. Hg found in fish can be detrimental to human health when consumed, causing harmful effects. The potential impact of Hg on fish physiology is a significant concern, given its presence in...
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| Format: | Article |
| Language: | English |
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KeAi Communications Co., Ltd.
2023-09-01
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| Series: | Emerging Contaminants |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2405665023000422 |
| _version_ | 1797660300914196480 |
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| author | Bambang Yulianto Agoes Soegianto Moch Affandi Carolyn Melissa Payus |
| author_facet | Bambang Yulianto Agoes Soegianto Moch Affandi Carolyn Melissa Payus |
| author_sort | Bambang Yulianto |
| collection | DOAJ |
| description | Mercury (Hg) poses a significant risk to aquatic ecosystems and living organisms as a result of human activities. Hg found in fish can be detrimental to human health when consumed, causing harmful effects. The potential impact of Hg on fish physiology is a significant concern, given its presence in fish. The rapid accumulation of Hg in fish tissues has the potential to impact their blood gas and electrolyte compositions. The objective of this investigation was to analyze the effects of sublethal concentrations of Hg on the blood gas and electrolyte levels of tilapia (Oreochromis niloticus) over different periods of exposure. This research was conducted through laboratory experiments. The study involved subjecting fish to sublethal concentrations of Hg at levels of 0.06 and 0.6 mg/L for a duration of 4 and 15 days. Upon completion of the toxicity test, fish specimens were taken from each testing group for the purpose of analyzing the Hg and carbonic anhydrase (CA) concentrations present in the gills, as well as osmoregulatory, acid-base, and hematological parameters. The results indicate that solely the fish that were subjected to a concentration of 0.6 mg/L Hg for a duration of 15 days exhibited a higher concentration of Hg in their gills compared to the control group. The inhibition of respiration by Hg was observed to be a result of the generation of metabolic acidosis, reduction in gill CA, decrease in pO2, as well as a decrease in plasma osmolality, Cl−, Na+, and K+. The levels of red blood cells, hemoglobin, and hematocrit exhibited a decrease solely at the concentration of 0.6 mg/L over a period of 15 days. The previously mentioned impairments have the potential to restrict the capacity of fish to adequately supply oxygen to their cells, thereby reducing overall performance. |
| first_indexed | 2024-03-11T18:27:50Z |
| format | Article |
| id | doaj.art-559712f5499b4e939a186b256f2cf22c |
| institution | Directory Open Access Journal |
| issn | 2405-6650 |
| language | English |
| last_indexed | 2024-03-11T18:27:50Z |
| publishDate | 2023-09-01 |
| publisher | KeAi Communications Co., Ltd. |
| record_format | Article |
| series | Emerging Contaminants |
| spelling | doaj.art-559712f5499b4e939a186b256f2cf22c2023-10-13T13:55:08ZengKeAi Communications Co., Ltd.Emerging Contaminants2405-66502023-09-0193100244The impact of various periods of mercury exposure on the osmoregulatory and blood gas parameters of tilapia (Oreochromis niloticus)Bambang Yulianto0Agoes Soegianto1Moch Affandi2Carolyn Melissa Payus3Department of Marine Science, Faculty of Fisheries and Marine Science, Diponegoro University, Semarang, IndonesiaDepartment of Biology, Faculty of Science and Technology, Universitas Airlangga, Surabaya, Indonesia; Corresponding author. Department of Biology, Faculty Sciences and Technology, Universitas Airlangga, Kampus C, Jl. Dr. Ir. Soekarno, Surabaya, 60115, Indonesia.Department of Biology, Faculty of Science and Technology, Universitas Airlangga, Surabaya, IndonesiaFaculty of Science and Natural Resources, Universiti Malaysia Sabah, Kota Kinabalu, Sabah, MalaysiaMercury (Hg) poses a significant risk to aquatic ecosystems and living organisms as a result of human activities. Hg found in fish can be detrimental to human health when consumed, causing harmful effects. The potential impact of Hg on fish physiology is a significant concern, given its presence in fish. The rapid accumulation of Hg in fish tissues has the potential to impact their blood gas and electrolyte compositions. The objective of this investigation was to analyze the effects of sublethal concentrations of Hg on the blood gas and electrolyte levels of tilapia (Oreochromis niloticus) over different periods of exposure. This research was conducted through laboratory experiments. The study involved subjecting fish to sublethal concentrations of Hg at levels of 0.06 and 0.6 mg/L for a duration of 4 and 15 days. Upon completion of the toxicity test, fish specimens were taken from each testing group for the purpose of analyzing the Hg and carbonic anhydrase (CA) concentrations present in the gills, as well as osmoregulatory, acid-base, and hematological parameters. The results indicate that solely the fish that were subjected to a concentration of 0.6 mg/L Hg for a duration of 15 days exhibited a higher concentration of Hg in their gills compared to the control group. The inhibition of respiration by Hg was observed to be a result of the generation of metabolic acidosis, reduction in gill CA, decrease in pO2, as well as a decrease in plasma osmolality, Cl−, Na+, and K+. The levels of red blood cells, hemoglobin, and hematocrit exhibited a decrease solely at the concentration of 0.6 mg/L over a period of 15 days. The previously mentioned impairments have the potential to restrict the capacity of fish to adequately supply oxygen to their cells, thereby reducing overall performance.http://www.sciencedirect.com/science/article/pii/S2405665023000422Water pollutionMercuryOsmoregulationAcid-base balanceBloodFish |
| spellingShingle | Bambang Yulianto Agoes Soegianto Moch Affandi Carolyn Melissa Payus The impact of various periods of mercury exposure on the osmoregulatory and blood gas parameters of tilapia (Oreochromis niloticus) Emerging Contaminants Water pollution Mercury Osmoregulation Acid-base balance Blood Fish |
| title | The impact of various periods of mercury exposure on the osmoregulatory and blood gas parameters of tilapia (Oreochromis niloticus) |
| title_full | The impact of various periods of mercury exposure on the osmoregulatory and blood gas parameters of tilapia (Oreochromis niloticus) |
| title_fullStr | The impact of various periods of mercury exposure on the osmoregulatory and blood gas parameters of tilapia (Oreochromis niloticus) |
| title_full_unstemmed | The impact of various periods of mercury exposure on the osmoregulatory and blood gas parameters of tilapia (Oreochromis niloticus) |
| title_short | The impact of various periods of mercury exposure on the osmoregulatory and blood gas parameters of tilapia (Oreochromis niloticus) |
| title_sort | impact of various periods of mercury exposure on the osmoregulatory and blood gas parameters of tilapia oreochromis niloticus |
| topic | Water pollution Mercury Osmoregulation Acid-base balance Blood Fish |
| url | http://www.sciencedirect.com/science/article/pii/S2405665023000422 |
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