Thank you for posting that - so Twycross lost a male to poor health after skin and eye problems, then a further two males due to fasting, both births resulting in infant mortality, and 4 adult females have also died? Basically the ESB holder has consumed seven adults from the European population and produced none. I plead ignorance here, maybe this is standard for many zoos with this species, only there would be no Southern Sealions in captivity if this were the case. It does seem strange to me that zoos on the continent and abroad are propping up a very poor record with this species in the UK.
Is fasting common in captive-bred sealions? Were all these animals even captive-bred?
The reason why they started to use Patagonian sea lions in the UK and Europe stems back to the introduction of the US Marine Mammal Protection Act in 1975 which made it more difficult to acquire California sea lions; despite the fact that the USA was awash with surplus stock from both captive breeding and stranding networks. Patagonian’s where being imported from wild caught animals from South America. I remember animal dealers like Raversden always having them listed.
Indeed, Europe appears to have done considerably better at breeding these animals for reasons that seem unclear. Ironically I know of 3 people who have these animals in a circus environment and last year at least 2 had pups born and successfully reared! Although this isn’t as strange as it seems because it very likely these animals receive much better one-to-one care and attention than an average zoo sea lion.
I worked with these animals both at Blackpool; the zoos original group was 3 female California sea lions and 2.1 Patagonia sea lions and at Woburn with a single female paired with a captive bred male California sea lion. They are actually nice animals to work with and I have to say more ‘dog-like’ in temperament than California sea lions.
Yes, I agree that Twycross's record is very poor which is surprising as their veterinary consultants are IZVG which have considerable specialist knowledge of marine mammals.
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