Species that normally migrate but can not because they are in captivity or injured, unrecoverable animals. How do they get around this innate behavior.
For many of animals, birds and mammals alike, their circannual rhythm of behavior and physiology persists even whilst in activity. For migrating species in captivity, their migratory behavior is manifest by what is widely termed migratory restlessness and this is often accompanied by significant changes in body mass and condition and hormonal changes. Suggest you do a key word search for 'migratory restlessness'.
Interesting. I wonder whether migratory restlessness and its effects are seen in fish (e.g. farmed salmon)?
Good question...
I have heard that captive salmon will seasonally orient themselves in tanks in the direction that migration would/should occur. Unfortunately, I have not looked into this but I'm pretty sure that you could find references for this.
Here is an example of long-distance migrating shorebirds kept in aviaries for 20 years https://www.researchgate.net/publication/305659165_Seasonal_Time_Keeping_in_a_Long-Distance_Migrating_Shorebird I can send you the full text if you are interested
Article Seasonal Time Keeping in a Long-Distance Migrating Shorebird
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