I also feel like I need to point out that according to this report done on the whales’ hearing, Morgan IS hearing-impaired.
An example of what they found:
"The click-evoked AEPs measured in most of the killer whales at Loro Parque resemble the expected pattern of evoked responses to this stimulus type previously reported for this species (Szymanski et al. 1999). The lack of a click-evoked response in the killer whale, Morgan, suggests that this animal suffers from a hearing deficit.
The magnitude and frequency range over which the hearing deficit occurs cannot be specified with the techniques used here as the click stimulus lacks the frequency specificity necessary for frequency-specific threshold measures. Nevertheless, it can be concluded based upon the recording of click-evoked responses at varying click levels in other whales that Morgan’s hearing ability is at least 20– 30 dB worse than the hearing sensitivity of the other whales tested.
It is possible that Morgan suffers from a profound hearing deficit, or even complete loss of hearing, but the frequency range and magnitude of the loss cannot be determined through currently employed electrophysiological means.”
It’s not a question of if she has a problem, it’s a question of how bad the problem is. That is what’s not known.
The report’s originating institution and authors do not seem suspect, unlike the shitty veterinarian documentation brought up at the court case.
I find it very galling that this has not been brought up more in this discussion.This is probably why she was lost and emaciated to begin with. :\
But this makes the situation a million times more complicated and awful.
Thanks for this, its quite an interesting read.
Thing is the latest appeal was related to the decision that was made to transfer Morgan to loro parque in 2011 instead of a sea pen for release/rehab like she was meant to be. So her hearing loss/current situation really wasn’t brought up in court because it was not available information at the time (i just had a read through and it wasn’t mentioned/brought up ) so for the moment I think that is why its not been brought up more in discussions.
Also random thought has the hearing of other whales from the area of her capture been tested? I’m not saying she’s not impaired but they could have different hearing ranges perhaps (or am i going too far fetched here?)
The cited study reference they considered a baseline (Szymanski et al. 1999) X was completed on captive orca (Yaka and Vigga a northern resident (A5 pod) and Icelandic respectively) from different areas of the world.