otolith

Additionally, researchers have used water temperature to create otolith barcodes in captive fish before release.

I currently work in a lab that primarily does otolith based growth and aging.

There's a device called the Otolith [0] that supposedly can cure vertigo and supposedly prevented motion sickness in VR, but they're only chasing the market for solving vertigo.

So hopefully otolith aging has been validated for this species in particular or at least a closely related one, but if not it's more likely than not reasonably reliable.

You have one is each axis of rotation, more or less (x-y-z) > feel the liquid as it passes by them The hair cells are embedded in a crystal matrix, the otolith.

> I currently work in a lab that primarily does otolith based growth and aging.

This has been studied previously in the context of VR motion sickness.[0] There is a company called Otolith Labs making these kind of devices.[1] They seem to have pivoted from VR to curing chronic vertigo.

I need to answer your question properly on a physiological level as well: The problem is that LFN signals that reach the inner ear get sent to the brain on 3 separate channels, with a signal from the otolith organs going to the vestibular nuclei and finally also to areas that regulate autonomic functions.

I don't cover the involvement of the otolith organs (yet) but that's your connection of a low-frequency sound stimulus to the sensation of (whole body) vibration, dizziness, balance problems, blurred vision, changes in peripheral blood flow and breathing problems.

Instead we inject a little oxytetracycline into 1000s of fish which stains calcified structures and release them again in the hopes someone recaptures one or so x years later in the hopes they report it and there are y rings between the dark ring and the margin of the otolith/vertebrae.

"The otolith analysis revealed that about 90 percent of Apache Lake’s buffalofishes were more than 85 years old".

Here is the relevant information for those interested: ""Enter a young inventor named Samuel Owen, who has developed a prototype device called the OtoTech, from Otolith Labs.

Otolith bands are the result of seasonal changes in growth rate, which is highly trusted to temperature and is why it's a less reliable technique in tropical or deep water species.