Doubt it, deep sea species who would need high pressure, and high pressure aquaria always have to be small as it's too difficult to have an enormous tank AND high pressure.
Can Any Animal be Held in Captivity?
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Doubt it, deep sea species who would need high pressure, and high pressure aquaria always have to be small as it's too difficult to have an enormous tank AND high pressure.
I see what you mean, but aquatic creatures are different. There would be a lot of different means that need to be met. But, the only land animals that I can think of that don't do very well in captivity are pangolins and the platypus
The most recent river dolphins were the three from Pittsburgh. Two died after a short time, but one (Chuckles) lived a dull life and died in 2002
In the case of the Giant Squid, the issue would be one of exhibit size rather than pressure in point of fact; juveniles and larvae have been recorded on many occasions at the surface, and it is believed that even adults come to the surface to feed relatively regularly. In point of fact, this video shows a 3.7 metre individual which was recorded in Toyama Bay back in 2015.
Both of these do significantly better in captivity than do some other taxa; the colugos come to mind in particular.
Yes thank you I didn't think of the colugos
that particular shark (and I think one or two others) was released purely because it was eating the other fish in the tank. Which sort of negates your point about them not being able to be kept in captivity...
platypus do just fine in captivity.
there is, in fact, still a river dolphin alive and well (albeit elderly) in Europe, which I think makes it more recent than a 2002 American dolphin.
the capture of larvae caught near the surface at night has been successfully achieved by New Zealander Steve O'Shea, I think a couple of times, although they were so sensitive none managed to survive the trip back to land. He has reared other species of deep-sea squid though, and apparently is still hoping to do the same with giant squid.
TheEthiopianWolf03
Well-Known Member
Just a quick question. Don't giant squids live in dark environments? That means in order to give the squid a perfect environment the tank has to be completely dark. Most cephalopods are sensitive to light (If I remember) and it would be hard for visitors to see the squid in such a dark environment. How would zoos and aquariums handle that obstacle?
There's one geriatric individual in Duisburg following an import circa 1975. Duisburg imported 5 animals of which 3 died the 3 following years, and one died in 2006 which only leaves 1 individual outside of South America (where IIRC 2/3 zoos keep them which includes one at least using them for shows if it is of any interest).
Well i did not know there was a river dolphin in Europe
Well some were for that reason but there has been so many cases of them quickly dying in captivity...
I think it is in duisburg,germany.And that is a amazon river dolphin,right?
More general observation:
Knowledge of animal husbandry, like all information, multiplies freely. It sometimes happens that first animals kept in captivity suffered, but once people learn how to acclimatize them, all the following ones will live (as with white sharks, pangolins, and countless other species before). This is an opposite of wild conservation, when if one protected a national park from poachers for 10 years, there is no guarantee that the protection will work next 10 years.
Second, Overread reminded me of something which bugged me for long. It is very likely that animals which are caught by humans are weaker and sicker than average individual of the species. It is possible that zoos are often building their populations on genetically inferior animals. And this is later creating problems to conservation.
Knowledge of animal husbandry, like all information, multiplies freely. It sometimes happens that first animals kept in captivity suffered, but once people learn how to acclimatize them, all the following ones will live (as with white sharks, pangolins, and countless other species before). This is an opposite of wild conservation, when if one protected a national park from poachers for 10 years, there is no guarantee that the protection will work next 10 years.
Second, Overread reminded me of something which bugged me for long. It is very likely that animals which are caught by humans are weaker and sicker than average individual of the species. It is possible that zoos are often building their populations on genetically inferior animals. And this is later creating problems to conservation.
overread
Well-Known Member
Hard to prove that one; esp as human hunting goes against the grain. In general most animals hunt what it easy to hunt which tends to be weaker/sicker/injured. Humans are the opposite and heavily favour the most fit and able (often the most meat heavy). So when capturing for trade there's a chance that this mind set also carries through.
That said for species with very small populations/hard to capture/in very inaccessible areas chances are you take what you can get.
I'm not sure about nightjars, but I have heard of a few insectivorous bats kept in captivity. In fact, I have seen one myself, a Big brown bat kept at the Organization for Bat Conservation during my summer 2015 trip (rescue animal). Pretty adorable little fella.
If we consider zootierliste entries reliable (I know there are mistakes on ztl) then Pension Zur Fledermaus Waren Müritz keeps/or kept (as of 2011) 2.0 Lesser mouse-tailed bat which are primary insectivore I think.
Along with 4 other species:
Soprano pipistrelle - Wildwood Trust (UK)
Noctule - Cherkasy (Ukraine)
Common Pipistrelle - Tierpark Schönebeck (Germany) and Wildwood Trust (UK) again
I know Canterbury (Wildwood Trust) and Schönebek are quite good with keeping other, small (and often local) hard to keep species such as Eurasian water shrews and these bats.
Along with 4 other species:
Soprano pipistrelle - Wildwood Trust (UK)
Noctule - Cherkasy (Ukraine)
Common Pipistrelle - Tierpark Schönebeck (Germany) and Wildwood Trust (UK) again
I know Canterbury (Wildwood Trust) and Schönebek are quite good with keeping other, small (and often local) hard to keep species such as Eurasian water shrews and these bats.