Effect of elevated ammonia on tissue nitrogen metabolites in the ureotelic gulf toadfish (Opsanus beta) and the ammoniotelic midshipman (Porichthys notatus)
CM Veauvy, PJ Walsh… - Physiological and …, 2009 - journals.uchicago.edu
We investigated possible biochemical pathways explaining extreme ammonia tolerance by
the gulf toadfish and specifically tested the prediction that the gulf toadfish Opsanus beta is …
the gulf toadfish and specifically tested the prediction that the gulf toadfish Opsanus beta is …
Isolated and combined exposure to ammonia and nitrite in rainbow trout (Oncorhynchus mykiss): effects on electrolyte status, blood respiratory properties and brain …
NE Vedel, B Korsgaard, FB Jensen - Aquatic Toxicology, 1998 - Elsevier
Rainbow trout (Oncorhynchus mykiss) were exposed for up to 4 days to 100, 300 and 500
μM ammonia and 0, 300 and 600 μM nitrite. Each ammonia concentration was combined …
μM ammonia and 0, 300 and 600 μM nitrite. Each ammonia concentration was combined …
Short-term physiological changes in turbot and seabream juveniles exposed to exogenous ammonia
JP Le Ruyet, G Boeuf, JZ Infante, S Helgason… - … and Physiology Part A …, 1998 - Elsevier
Seabream and turbot juveniles (40–520 g) were exposed to constant exogenous NH3-N
concentrations (1.27–4.27 mmol/l; pH, 8.15). In 96 hr acclimated fish, plasma TA-N (total …
concentrations (1.27–4.27 mmol/l; pH, 8.15). In 96 hr acclimated fish, plasma TA-N (total …
Comparative acute ammonia toxicity in marine fish and plasma ammonia response
J Person-Le Ruyet, H Chartois, L Quemener - Aquaculture, 1995 - Elsevier
Using a continuous-flow method a total of 14 acute toxicity bioassays were conducted using
seabass (Dicentrarchus labrax), seabream (Spams aurata) and turbot (Scophthalmus …
seabass (Dicentrarchus labrax), seabream (Spams aurata) and turbot (Scophthalmus …
Inhibition of glutamine synthetase during ammonia exposure in rainbow trout indicates a high reserve capacity to prevent brain ammonia toxicity
LA Sanderson, PA Wright… - Journal of …, 2010 - journals.biologists.com
Glutamine synthetase (GSase), the enzyme that catalyses the conversion of glutamate and
ammonia to glutamine, is present at high levels in vertebrate brain tissue and is thought to …
ammonia to glutamine, is present at high levels in vertebrate brain tissue and is thought to …
Five tropical air-breathing fishes, six different strategies to defend against ammonia toxicity on land
Most tropical fishes are ammonotelic, producing ammonia and excreting it as NH3 by
diffusion across the branchial epithelia. Hence, those air-breathing tropical fishes that …
diffusion across the branchial epithelia. Hence, those air-breathing tropical fishes that …
Plasma ammonia concentration in brown trout in soft acidic water and its relationship to decreased swimming performance
MW Beaumont, PJ Butler… - Journal of Experimental …, 1995 - journals.biologists.com
ABSTRACT Adult brown trout (300–600 g) were acclimated for 2 weeks to an artificial soft
water (Ca2+, 50 μ mol l− 1) and maintained at either 5° C (October to March) or 15° C (May …
water (Ca2+, 50 μ mol l− 1) and maintained at either 5° C (October to March) or 15° C (May …
Nitrogen excretion and defense against ammonia toxicity
Publisher Summary Ammonia is mainly produced in fish through catabolism of amino acids.
Ingested proteins are hydrolyzed producing amino acids, the catabolism of which leads to …
Ingested proteins are hydrolyzed producing amino acids, the catabolism of which leads to …
Strategies for Surviving High Concentrations of Environmental Ammonia in the Swamp Eel Monopterus albus
YK Ip, ASL Tay, KH Lee… - … and Biochemical Zoology, 2004 - journals.uchicago.edu
The swamp eel Monopterus albus lives in muddy ponds, swamps, canals, and rice fields in
the tropics. It encounters high concentrations of environmental ammonia (HEA) during dry …
the tropics. It encounters high concentrations of environmental ammonia (HEA) during dry …
Excretory nitrogen metabolism and defence against ammonia toxicity in air‐breathing fishes
With the development of air‐breathing capabilities, some fishes can emerge from water,
make excursions onto land or even burrow into mud during droughts. Air‐breathing fishes …
make excursions onto land or even burrow into mud during droughts. Air‐breathing fishes …