X-ray microanalysis in the scanning electron microscope on fish gills affected by acidic, heavy metal containing industrial effluents

Lehtinen, Karl-Johan; Klingstedt, Gunnar

doi:10.1016/0166-445x(83)90031-0

Cited by 10 publications

(5 citation statements)

References 10 publications

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“…Thus, heavy metals affect both oxygen absorption and osmoregulation in fish. Subsequently it will suffer from numerous histopathological changes in gill (Lehtinen and Klingstedt, 1983).…”

Section: Resultsmentioning

confidence: 99%

Ultrastructural effects on gill tissues induced in red tilapia Oreochromis sp. by a waterborne lead exposure

Aldoghachi

Azirun

Yusoff

et al. 2016

Saudi Journal of Biological Sciences

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Experiments on hybrid red tilapia Oreochromis sp. were conducted to assess histopathological effects induced in gill tissues of 96 h exposure to waterborne lead (5.5 mg/L). These tissues were investigated by light and scanning electron microscopy. Results showed that structural design of gill tissues was noticeably disrupted. Major symptoms were changes of epithelial cells, fusion in adjacent secondary lamellae, hypertrophy and hyperplasia of chloride cells and coagulate necrosis in pavement cells with disappearance of its microridges. Electron microscopic X-ray microanalysis of fish gills exposed to sublethal lead revealed that lead accumulated on the surface of the gill lamella. This study confirmed that lead exposure incited a difference of histological impairment in fish, supporting environmental watch over aquatic systems when polluted by lead.

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“…Thus, heavy metals affect both oxygen absorption and osmoregulation in fish. Subsequently it will suffer from numerous histopathological changes in gill (Lehtinen and Klingstedt, 1983).…”

Section: Resultsmentioning

confidence: 99%

Ultrastructural effects on gill tissues induced in red tilapia Oreochromis sp. by a waterborne lead exposure

Aldoghachi

Azirun

Yusoff

et al. 2016

Saudi Journal of Biological Sciences

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“…Freshwater fish can absorb waterborne metals through their gill epithelia due to the binding capacity of the mucous layer that covers the gill arches and their close contact with the surrounding environment [60,61]. Gills absorb active ions; thus, their oxygen absorption and osmoregulation capability can be affected, leading to numerous histopathological changes in the gill [62]. Wepener et al [63] reported that when Tilapia sparrmanii was exposed to 319 mg/L iron concentration, the iron in gill tissue increased significantly after only 2 h exposure, remained elevated during the 72 h exposure period, and returned to control values after 96 h of exposure.…”

Section: Gills Edx Analysismentioning

confidence: 99%

Iron and Potassium Fertilization Improve Rocket Growth without Affecting Tilapia Growth and Histomorphology Characteristics in Aquaponics

et al. 2021

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Aquaponics provides an alternative opportunity for the combined production of fish and plants. Most of the essential nutrients required for optimal plant growth can be supplied from the fish feed, except for K and Fe. These nutrients are usually inadequate in fish feed. In this study, red tilapia and rocket plants were co-cultivated in an aquaponics system along with the extra addition of K and Fe. Fish growth, morpho-anatomical characteristics, and K and Fe loading on fish gills were studied. Plant growth parameters were also determined. The addition of Fe and K slightly improved the produced fresh biomass of rocket per unit area and had no impact on tilapia growth and survival. No severe histological alterations in fish gills, liver, and midgut were detected. EDX analysis showed that the addition of K led to the enrichment of this specific ion in fish gills, but no effects of this accumulation were found on other aspects of fish growth and survival.

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“…Iron can disrupt cell membranes and damage the DNA of aquatic plants and animals [1][2][3]. In addition, precipitation of ferric hydroxides and ironhumus colloids may accumulate on fish gills, limiting respiration [4][5][6], constraining food access by invertebrates [7,8], and altering the quality and structure of benthic habitats [9][10][11]. Reduced abundance and species diversity of periphyton, benthic invertebrates, and fishes often are reported in water bodies with high iron concentrations [9][10][11][12][13][14].…”

Section: Introductionmentioning

confidence: 99%

Development of bioassessment-based benchmarks for iron

Linton

Pacheco

McIntyre

et al. 2007

Environmental Toxicology and Chemistry

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Current water-quality criteria for metals typically are derived from toxicity tests with the metal dissolved in clean laboratory water. Estimating the toxicity of iron from such tests, however, is extremely difficult because of the complex solubility and toxicity characteristics of the ferrous and ferric forms of the metal in freshwater. Consequently, a criterion for dissolved iron in freshwater derived from standard laboratory bioassays may not accurately describe the actual bioavailability and toxicity of this metal. A new approach is necessary to adequately protect aquatic life from the direct (toxic) and indirect (physical) negative effects of iron. We present a novel methodology to derive bioassessment-based benchmarks for total iron. This approach involves the use of quantile regression to model the decline in maximum abundance of taxa along a gradient of increasing iron concentrations. The limiting function (e.g., 90th quantile) is used to project the iron concentration associated with a selected reduction in maximum number of organisms (e.g., 20%). The projected declines in abundance of aquatic organisms are interpreted within the larger context of biological responses to increasing levels of stress (i.e., a biological condition gradient). Projections of iron concentration associated with multiple levels of reduction are selected to establish acceptable levels of change in the various tiers of a biological community. The bioassessment-based benchmarks that we establish for total iron (0.21 and 1.74 mg/L) are based on the assumption that if ecological effects-based criteria for total iron are derived and applied, the structure and function of the aquatic community will be protected.

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X-ray microanalysis in the scanning electron microscope on fish gills affected by acidic, heavy metal containing industrial effluents

Cited by 10 publications

References 10 publications

Ultrastructural effects on gill tissues induced in red tilapia Oreochromis sp. by a waterborne lead exposure

Ultrastructural effects on gill tissues induced in red tilapia Oreochromis sp. by a waterborne lead exposure

Iron and Potassium Fertilization Improve Rocket Growth without Affecting Tilapia Growth and Histomorphology Characteristics in Aquaponics

Development of bioassessment-based benchmarks for iron

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