Search results for query: nephrocalcinosis

..."Mousavi, S.M., Rezaie, A., Ahmadmoradi, E. and Mohammadi, F., (2016). "Histopathology of nephrocalcinosis in some ornamental fishes". Aquaculture, Aquarium, Conservation & Legislation, 9:3, pp.574-579." There is quite a lot for aquaculture, but the fish tend to be euryhaline (Salmon, Trout...

Hi all, I think the issue is <"nephrocalcinosis">. There are scientific papers on salmonids etc. cheers Darrel

...paper, this is an extract: "Bruno (1996) presented that there are two circumstances which are considered to cause or exacerbate nephrocalcinosis. Firstly, a prolonged exposure of fish to high levels of carbon dioxide at levels greater than 10 to 20 mg/L, and secondly a nutritional aspect...

Hi @Natthanon Regarding the CO2 side of things, please take a look at the following, which deals with nephrocalcinosis in ornamental fish: http://www.bioflux.com.ro/docs/2016.574-579.pdf It's worth a read. JPC

...toxicity figure and a chronic toxicity figure. These terms are self-explanatory. Excess CO2 can cause a condition in fish known as nephrocalcinosis. For further information, please take a look at the following. I hope you're not squeamish...

Hi Darrel, Thanks a lot. I've had a good read and there certainly is some good stuff there on both those links. JPC

Hi all, A search on UKAPS for <"hypercapnia"> and <"nephrocalcinosis">, should yield some more references. cheers Darrel

http://www.bioflux.com.ro/docs/2016.574-579.pdf

...the high levels of dGH cause a toughening of the egg coat and this stops successful egg development.There may also be issues with "nephrocalcinosis", in fish although this can also be associated with elevated CO2 levels. It is just because they evolved in situations with very low levels of...

Histopathology of nephrocalcinosis in some ornamental fishes

...However, keeping soft water fish in harder water is thought to be bad for them in the longer term, causing kidney problems ("nephrocalcinosis"). Real "black-water" fish are adapted to survive in conditions where there are very low levels of salts in the water, and they don't do well away...

I'm sure your right, but we're specifically discussing the link between CO2 injection in a planted aquaria and Nephrocalcinosis in pet fish. On reflection my concluding comment does seem a little contradictory, however the main thrust of the discussion is based on Tony's suggestion that there...

...help by stimulating people to observe their livestock more seriously and report findings.. Of what i understand of the chapter Nephrocalcinosis it should rather be considered a condition than a disease a fish suffers from. There are no macroscopic signs observed that the fish suffers at all...

...CO2 associated with crowding or the use of calcium carbonate (e.g., crushed coral) are two factors that have the potential to cause nephrocalcinosis. Chen et al. (2001) recommended buffering with sodium bicarbonate. In addition, proper CO2 concentrations should be maintained by proper water...

...the thread because sometimes we half gas our fish, next day they are fine and eventually die after maybe some weeks. Even if there is no evidence for this. We should just realise this. If you know your weakness then you can get better at it. Im not really arguing nephrocalcinosis here, just co2.

...it's not a problem in our planted tanks. Like zozo implies our fish will usually die of old age before they even get a whiff of Nephrocalcinosis...but we're quite happy to send our dead fish to you or Nathan Hill for forensic pathology:rolleyes: Regarding elevated CO2 being a hot topic...

It doesn't appear to be a controversial idea. the most cited reference material is Bekesi et al. 1984; Smart et al. 1979; Gottschalk 1991 This info leaflet produce by the scottish government provides other source material. http://www.gov.scot/Uploads/Documents/16_1996.pdf thats possibly...

...in itself does not constitute scientific evidence, and neither does the paper you linked unfortunately. You're also right in that Nephrocalcinosis is a concern for the aquaculture industry and I believe it has long been a concern in farming salmonids. However, although there is a suspected...

...operated by the University of Oregon. They have a section devoted to disease. some i had heard of. some not. This entry stood out: Nephrocalcinosis This condition occurs in many species of fish held in captivity, and we occasionally observe it in our diagnostic cases. Nephrocalcinosis is...

I'm not going to talk about CO2 and Nephrocalcinosis. (which you didn't mention) its irrelevant to this thread. (I may comment on the thread that deals with this elsewhere on this site.. as it was my eMail to Nathan Hill that resulted in his blog post.. I'll need to think about that.) Nor will...

just saying :D

Read this today: http://www.practicalfishkeeping.co.uk/content.php?sid=6769 The claim being that adding high levels (>12ppm) of co2 to the water can cause problems for the fish. Anybody know any more about this? I have not had any unexplained deaths in my pressurised tanks, but am not...

Re: Fluval Studio 900... Disaster. Hi, It seems a contentious issue really, from reading that link the closing paragraph states: "Remember that high levels of oxygen may not help either as the fish respiratory rate is governed by levels of oxygen, high O2 can slow the rate of elimination of...

...displace a CO2 molecule on a haemoglobin molecule (at the gas exchange surface in the gills). I also don't know the answer to the nephrocalcinosis question, but this would suggest the answer is probably that it is a potential problem, even in soft water, for salmonids, but I'm not sure about...

...be a high concentration of 02 available, counteracting the higher levels of c02? The thing that confused me was this passage: "Nephrocalcinosis occurs when natural CO2 levels in the water are high and/or when additional oxygenation is used to increase carrying capacity, and the total...

Hi all, Point taken and no-one has directly answered the question. There is plenty of scientific evidence that elevated, but sub-lethal, CO2 levels are damaging to fish long term. This is from the last post in the linked in thread (from 2010)...

...prolonged exposure to sub-lethal CO2 levels will have long lasting effects on fish health. The technical terms are "hypercapnia" & "nephrocalcinosis", and this is the Google Scholar search for "hypercapnia & aquaculture"...