Plasma and Tissue Thyroxine and Triiodothyronine Contents in Sublethally Stressed, Aluminum-Exposed Brown Trout (Salmo trutta)

Cp, Waring; Ja, Brown

doi:10.1006/gcen.1996.6859

Cited by 26 publications

(15 citation statements)

References 31 publications

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“…The trout were stressed by this sublethal Al exposure, as indicated by increased concentrations of plasma cortisol and glucose compared with the pH 5.0 exposure alone, although plasma ions and osmolarity were unchanged. Plasma T 3 and T 4 concentrations were also elevated in these fish, as were liver T 3 and T 4 content, but ovary and kidney T 3 contents were lower (Waring and Brown, 1997). These results for the Al-exposed fish implied increased T 4 secretion from the thyroid plus increased monodeiodination of T 4 in the liver, producing T 3 .…”

Section: Ionoregulatory and Respiratory Disturbancessupporting

confidence: 51%

“…A later study designed to further assess the increases in plasma T 3 concentrations in brown trout used a 5-d exposure to pH 5.0 soft water containing 0 or 12.5 µg · L -1 Al (20 µM Ca; Waring and Brown, 1997). The trout were stressed by this sublethal Al exposure, as indicated by increased concentrations of plasma cortisol and glucose compared with the pH 5.0 exposure alone, although plasma ions and osmolarity were unchanged.…”

Section: Ionoregulatory and Respiratory Disturbancesmentioning

confidence: 99%

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The Bioavailability and Toxicity of Aluminum in Aquatic Environments

Gensemer

Playle

1999

Critical Reviews in Environmental Science and Technology

629

444

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ABSTRACT:In this article we review the biological effects of Al, primarily with respect to the chemical factors controlling Al bioavailability and toxicity, and how its biological effects are best predicted. Our intent is not to duplicate recent reviews on Al chemistry or toxicity, but rather to update the literature since these reviews were published, and to focus on Al speciation and other external chemical influences on Al bioavailability to freshwater biota. Briefly, we first review Al chemistry, with a specific focus on understanding, as well as measuring, Al chemical species of importance to aquatic biota. Next we more comprehensively review Al toxicity and bioavailability to freshwater algae, with a thorough analysis of the relationships between speciation and toxicity, the role of important chemical complexing agents such as P, Si, and organic carbon, as well as the potential for Al to impact algal community structure. A third section reviews the more sparse literature on aquatic higher plants; the fourth section reviews a somewhat more abundant literature of Al toxicity to freshwater invertebrates. We close with an updated review of Al toxicity to fish, again with a focus on mechanisms of toxicity, and the role of Al speciation in controlling bioavailability.

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Section: Ionoregulatory and Respiratory Disturbancessupporting

confidence: 51%

Section: Ionoregulatory and Respiratory Disturbancesmentioning

confidence: 99%

The Bioavailability and Toxicity of Aluminum in Aquatic Environments

Gensemer

Playle

1999

Critical Reviews in Environmental Science and Technology

629

444

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“…Numerous studies have demonstrated that environmental contaminants affect plasma TH levels and cause thyroid dysfunction in fish (Waring and Brown, 1997;Zhou et al, 2000;Thangavel et al, 2005). Furthermore, an elevated level of cortisol, which is a common endocrine response during stress induced by waterborne pollutants, has been shown to interfere with thyroid function in fish (Walpita et al, 2007).…”

Section: Introductionmentioning

confidence: 99%

Changes in plasma thyroid hormones and cortisol levels in crucian carp (Carassius auratus) exposed to the extracted microcystins

Xie

Zhang

2008

Chemosphere

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“…Several studies have shown that environmental chemicals disturb levels plasma thyroid hormone (Steenland et al, 1997). Disturb plasma thyroid hormone level leads to thyroid dysfunction in fishes (Waring et al, 1997).…”

Section: Pesticides Induced Changes In Immune Systems and Endocrine Dmentioning

confidence: 99%

Ecotoxicology: A Review of Pesticides Induced Toxicity in Fish

Ullah¹

2015

Adv. Anim. Vet. Sci.

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| Throughout the world pesticides are widely employed in agriculture sector in order to elevate crops' yield with low labour and efforts. Pesticides exposure leads to toxicity in many non-target organisms, fish being one of the most prominent among these. Most of the time acute concentration of these pesticides leads to mortality while sub lethal concentration of these pesticides result in different lethal changes. These changes may be in behaviour of the exposed fish such as change in feeding behaviour, attack or avoiding behaviour and reproductive behaviour, or other types of alterations such as changes in histology (liver, kidneys, gills, muscles, brain, intestine), haematology (RBCs, WBCs or Plasma), anti-oxidant defence system (Glutathione reductase, Peroxidase, Catalase, Superoxide dismutase, Glutathione peroxidase, Glutathione-S-transferase etc.), changes in nutrient profile (Protein, Lipids, Carbohydrates, Moisture content and Ash etc.) and worth of the fish, hormonal or enzymatic alterations, oxygen consumption, and DNA damage or damage at genes level (genotoxicity). Different environmental agencies are working on this aspect and that's why there are a large number of banned chemicals. Still these chemicals are available in markets. Certain newly synthesized pesticides (insecticides or fungicides etc.) and extensive use of these chemicals are always there to maximize the problem for aquatic organisms especially fish. This article focuses on the same aspect of ecotoxicology and reviews some major induced toxicological aspects of pesticides in fish including behavioural changes, histopathological damages, haematological alterations, biochemical changes, fluctuations in acetylcholinesterase activity, vicissitudes in protein contents, induced genotoxicity, alterations in feeding biology, oxygen consumption and oxygen stress all across the world.

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Plasma and Tissue Thyroxine and Triiodothyronine Contents in Sublethally Stressed, Aluminum-Exposed Brown Trout (Salmo trutta)

Cited by 26 publications

References 31 publications

The Bioavailability and Toxicity of Aluminum in Aquatic Environments

The Bioavailability and Toxicity of Aluminum in Aquatic Environments

Changes in plasma thyroid hormones and cortisol levels in crucian carp (Carassius auratus) exposed to the extracted microcystins

Ecotoxicology: A Review of Pesticides Induced Toxicity in Fish

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