Osmoregulation in fish

Greenwell, M.; Sherrill, Johanna; Clayton, Leigh A.

doi:10.1016/s1094-9194(02)00021-x

Cited by 68 publications

(19 citation statements)

References 21 publications

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“…Marine fish maintain hydration by drinking sea water, such that any ingested water-borne toxins may produce gastrointestinal pathology (Greenwell et al, 2003). Gastrointestinal pathology in this study is similar to the necrosis and sloughing of the intestinal epithelium reported in wild black gobies, Gobius niger (Mitchell & Rodger, 2007).…”

supporting

confidence: 81%

The pathology associated with putative algal toxicosis in red snapper, Lutjanus species (Bloch 1790)

Gibson-Kueh

Uichanco

2021

Journal of Fish Diseases

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supporting

confidence: 81%

The pathology associated with putative algal toxicosis in red snapper, Lutjanus species (Bloch 1790)

Gibson-Kueh

Uichanco

2021

Journal of Fish Diseases

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“…Plasma osmolality has been used as a physiological indicator when measuring the effects of salinity on fish physiology [ 12 , 67 , 68 , 69 , 70 ]. Plasma osmolality is maintained between 300 and 350 mOsmol·kg −1 in the face of tolerable salinities by adult euryhaline teleost [ 12 , 71 , 72 ]. In our experiment, although significant differences were found between conditions, all the plasma osmolality values were in the range of 300 to 350 mOsmol·kg −1 .…”

Section: Discussionmentioning

confidence: 99%

Evaluation of an Acute Osmotic Stress in European Sea Bass via Skin Mucus Biomarkers

Ordóñez-Grande

Guerreiro

Sanahuja

et al. 2020

Animals

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European sea bass is a marine teleost which can inhabit a broad range of environmental salinities. So far, no research has studied the physiological response of this fish to salinity challenges using modifications in skin mucus as a potential biological matrix. Here, we used a skin mucus sampling technique to evaluate the response of sea bass to several acute osmotic challenges (for 3 h) from seawater (35‰) to two hypoosmotic environments, diluted brackish water (3‰) and estuarine waters (12‰), and to one hyperosmotic condition (50‰). For this, we recorded the volume of mucus exuded and compared the main stress-related biomarkers and osmosis-related parameters in skin mucus and plasma. Sea bass exuded the greatest volume of skin mucus with the highest total contents of cortisol, glucose, and protein under hypersalinity. This indicates an exacerbated acute stress response with possible energy losses if the condition is sustained over time. Under hyposalinity, the response depended on the magnitude of the osmotic change: shifting to 3‰ was an extreme salinity change, which affected fish aerobic metabolism by acutely modifying lactate exudation. All these data enhance the current scarce knowledge of skin mucus as a target through which to study environmental changes and fish status.

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“…In their diverse aquatic habitats, fish have evolved varied strategies to maintain osmotic homeostasis in environments with different and/or fluctuating salinity and pH (Greenwell et al, 2003). Recent evidence revealed that osmotic challenges result in context-dependent changes in histone modifications, DNA methylation and miRNA abundance in several tissues crucially involved in osmoregulation in cypriniformes, especially gill and kidney.…”

Section: Salinity and Phmentioning

confidence: 99%

Epigenetics in teleost fish: From molecular mechanisms to physiological phenotypes

Best

Ikert

Kostyniuk

et al. 2018

Comparative Biochemistry and Physiology Part B: Biochemistry an

114

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While the field of epigenetics is increasingly recognized to contribute to the emergence of phenotypes in mammalian research models across different developmental and generational timescales, the comparative biology of epigenetics in the large and physiologically diverse vertebrate infraclass of teleost fish remains comparatively understudied. The cypriniform zebrafish and the salmoniform rainbow trout and Atlantic salmon represent two especially important teleost orders, because they offer the unique possibility to comparatively investigate the role of epigenetic regulation in 3R and 4R duplicated genomes. In addition to their sequenced genomes, these teleost species are well-characterized model species for development and physiology, and therefore allow for an investigation of the role of epigenetic modifications in the emergence of physiological phenotypes during an organism's lifespan and in subsequent generations. This review aims firstly to describe the evolution of the repertoire of genes involved in key molecular epigenetic pathways including histone modifications, DNA methylation and microRNAs in zebrafish, rainbow trout, and Atlantic salmon, and secondly, to discuss recent advances in research highlighting a role for molecular epigenetics in shaping physiological phenotypes in these and other teleost models. Finally, by discussing themes and current limitations of the emerging field of teleost epigenetics from both theoretical and technical points of view, we will highlight future research needs and discuss how epigenetics will not only help address basic research questions in comparative teleost physiology, but also inform translational research including aquaculture, aquatic toxicology, and human disease.

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Osmoregulation in fish

Cited by 68 publications

References 21 publications

The pathology associated with putative algal toxicosis in red snapper, Lutjanus species (Bloch 1790)

The pathology associated with putative algal toxicosis in red snapper, Lutjanus species (Bloch 1790)

Evaluation of an Acute Osmotic Stress in European Sea Bass via Skin Mucus Biomarkers

Epigenetics in teleost fish: From molecular mechanisms to physiological phenotypes

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