SEM study on the effects of crude oil on the gills and air breathing organs of climbing perch,Anabas testudineus

Prasad, M. S.

doi:10.1007/bf01689519

Cited by 19 publications

(7 citation statements)

References 12 publications

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“…However, even though ventilatory activity was not recorded systematically in these fish, depressed ventilation was observed, and is in line with the reported narcotic actions of aromatic hydrocarbons (Patten, 1977;Correa & Garcia, 1990). In addition, fusion of secondary lamellae, gill hyperplasia and oedema, and increased secretion of mucus have been reported in fish exposed to petroleum hydrocarbons (DiMichele & Taylor, 1978;McKeown & March, 1978;Engelhardt et al, 1981;Poirier et al, 1986;Correa & Garcia, 1990;Prasad, 1991) and would interfere with gas exchange.…”

Section: Discussionsupporting

confidence: 83%

“…Petroleum hydrocarbons have been reported to cause structural damage to the respiratory lamellae of the gills (DiMichele & Taylor, 1978;Poirier et al, 1986;Correa & Garcia, 1990;Engelhardt et al, 1981;Prasad, 1991), as well as to have narcotic actions (Patten, 1977;Correa & Garcia, 1990). Such effects would be predicted to impede gas exchange, and result in hypoxaemia, which might be expected to stimulate release of catecholamines Ristori & Laurent, 1989;Randall & Perry, 1992).…”

Section: Introductionmentioning

confidence: 99%

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Endocrine, osmoregulatory, respiratory and haematological parameters in flounder exposed to the water soluble fraction of crude oil

Alkindi

Brown

Waring

et al. 1996

Journal of Fish Biology

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Flounders Pleuronectes flesus with an implanted vascular catheter were exposed to a 50% dilution of the water soluble fraction (WSF) of Omani crude oil (c. 6 ppm total aromatic hydrocarbons) and serial blood samples taken to determine their endocrine status (cortisol, catecholamines and thyroid hormones) and the resultant and/or causal physiological (haematological, ionoregulatory and respiratory) disturbances. This resulted in a progressive increase in plasma cortisol concentrations from 3 h onwards (rising from 18 to 51 ng ml 1 after 48-h exposure), and increased plasma glucose concentrations indicating a generalized stress response. Plasma T 3 and T 4 concentrations of both control and WSF-exposed groups declined progressively over the experimental period; exposure to the WSF of crude oil further depressed plasma T 4 concentrations but not plasma T 3 concentrations relative to those of control fish. Plasma osmolality and sodium and chloride concentrations were stable in WSF-exposed fish, however, plasma potassium concentrations were increased significantly at the 24-and 48-h sampling points. The most profound physiological disturbance in WSF-exposed fish was a dramatic decline in blood oxygen content (CvO 2 ) (from 2·8 to 0·8 ml 100 ml 1 after 48-h exposure), which is likely to be the cause of the increased plasma noradrenaline concentrations from 3 h onwards. Increased noradrenaline is likely in turn to have been responsible for the significant increase in blood haematocrit and blood haemoglobin at the 3-h sampling point, although the dominant effect in the longer-term was a significant decline in both of these haematological parameters. 1996 The Fisheries Society of the British Isles

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Section: Discussionsupporting

confidence: 83%

Section: Introductionmentioning

confidence: 99%

Endocrine, osmoregulatory, respiratory and haematological parameters in flounder exposed to the water soluble fraction of crude oil

Alkindi

Brown

Waring

et al. 1996

Journal of Fish Biology

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“…Our study revealed that mucous-cell openings were scattered over the epithelia of arch, filament and lamellae. The present findings are in agreement with those of Prasad [20]. Similar structures have been labeled as mucous-cells opening by Olson [19].…”

Section: Discussionsupporting

confidence: 93%

SEM study of ultrastructural changes in branchial architecture of Ctenopharyngodon idella (Cuvier & Valenciennes) exposed to chlorpyrifos

Kaur

Jindal

2016

ARCH BIOL SCI BELGRA

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We evaluated structural modifications in the branchial architecture of grass carp, Ctenopharyngodon idella, chronically exposed to chlorpyrifos (an organophosphate) using scanning electron microscopy (SEM). Static renewal tests were conducted for 96 h to determine the LC 50 of chlorpyrifos to the fish. Physicochemical analysis of water was done using standard methods. To assess the effect of chronic toxicity, fish were exposed to two sublethal concentrations (1.44 µg/L and 2.41 µg/L) of chlorpyrifos for 15, 30 and 60 days, after which gills were examined by SEM, which revealed changes in gill ultrastructure. Branchial alterations included distorted secondary lamellae in the form of curling and shortening, erosion in a few primary filaments and a wrinkled and denuded epithelial surface. Excessive mucosal openings (mucoid hyperplasia) on the surface were observed in the gills of fish exposed to both concentrations of chlorpyrifos. Alteration in the microridge pattern of pavement cells and cracks on the gill rakers were also observed, and the intensity of the damage was found to be directly related to the toxicant concentration and exposure period. The present study revealed that the assessment of surface morphology can serve as a novel bioindicator of pollution, disease and toxicity.

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“…Copious mucous secretion from the gills with hyperplasia and hypertrophy of mucus-producing epithelial cells are widely reported histopathological effects of crude oils and their products (Hawkes, 1977;Solangi, 1980;Engelhardt et al 1981;Lopez et al 1981Haensly et al 1982Solangi and Overstreet 1982;Kiceniuk, 1984, 1988;Khan, 1987;Prasad, 1988Prasad, , 1991Davison et al 1993).…”

Section: Gill Histopathologymentioning

confidence: 99%

Endocrine, Physiological and Histopathological Responses of Fish and their Larvae to Stress with Emphasis on Exposure to Crude Oil and Various Petroleum Hydrocarbons

Alkindi

Brown

Waring

2000

SQU Journal for Science

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ABSTRACT:Various endocrine and physiological responses of fish exposed to forceful physical and chemical stimuli are reviewed with emphasis on the effects of crude oils and their hydrocarbon constituents. The chemistry and toxicity of petroleum hydrocarbons are examined and methods for experimental exposure of fish to crude oil and petroleum hydrocarbons are considered. A variety of blood-borne parameters recognized as reliable tools in determining the relative severity of stress in fish are reviewed. The effects of stress and petroleum hydrocarbons on endocrine responses including changes in plasma AL-KINDI, BROWN, and WARING catecholamines, corticosteroids, and thyroid hormones are reviewed. The physiological responses: changes in plasma glucose, osmotic and ionic regulation, blood oxygen, hematocrit and hemoglobin concentration are explored, and histopathological effects of crude oil on fish are reviewed. Recent studies of the effects of petroleum hydrocarbons on fish larvae are considered and the increased sensitivity of the early life stages of fish are highlighted.

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SEM study on the effects of crude oil on the gills and air breathing organs of climbing perch,Anabas testudineus

Cited by 19 publications

References 12 publications

Endocrine, osmoregulatory, respiratory and haematological parameters in flounder exposed to the water soluble fraction of crude oil

Endocrine, osmoregulatory, respiratory and haematological parameters in flounder exposed to the water soluble fraction of crude oil

SEM study of ultrastructural changes in branchial architecture of Ctenopharyngodon idella (Cuvier & Valenciennes) exposed to chlorpyrifos

Endocrine, Physiological and Histopathological Responses of Fish and their Larvae to Stress with Emphasis on Exposure to Crude Oil and Various Petroleum Hydrocarbons

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