lolitasrevenge

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Seaworld Pregnancy Success Rates

I was having a conversation about the “success” rate of seaworld’s breeding so I crunched the numbers and here are some stats I found interesting:

Miscarriage/stillbirth rate: 30%

Pregnancies that “failed” to produce a calf that lived longer than 3 years (meaning this includes stillbirths, miscarriages, and infant deaths): 40%

Infant Mortality Rate, only considering live births: 15%

Calves that died before reaching age 13 (younger animals that are currently living are counted as surviving): 21%

Mothers who died during giving birth or during pregnancy: 33% of all seaworld mothers, 13% of all Seaworld Pregnancies

Live offspring rejected: 15%

Inbred pregnancies: 6%

So, if we consider all known pregnancies that resulted in mother rejection, miscarriage, or infant deaths to be failures, seaworld has a success rate of 49% (important to note that several rejected calves have survived, largely in part thanks to human intervention)

If we only consider the orcas born at Seaworld who are still alive today to be “successful” (given that Seaworld’s breeding program is only 33 years old, and orca lifespans are right around that for males, and higher for females, this isn’t a completely unrealistic expectation or definition for success), then Seaworld has a pregnancy success rate of 46%

Don’t jump to any conclusions about these numbers, these were just things I found interesting and so I’m charing them. Comparing them to wild stats would be wildly inappropriate given that we don’t have accurate miscarriage/stillbirth numbers for wild orcas, and we may not be aware of all captive miscarriages. Captive orcas also have veterinary care which can potentially allow some calves that would not otherwise survive, to live past infancy.  

#seaworld #orca #orca breeding #shamu #killer whale #captivity #orca captivity #pregnancy success rates #lolitasrevenge

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Green Lights

Wild russian orcas (including Humpy) special for @vaquitatje! c;

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Chimelong orcas.

http://www.chinanews.com/m/sh/2017/02-24/8159167.shtml

#this is weird... are they like #used at all for shows #not that they should be this is just different granted the language barrier and translation is making it more complicated

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‘China’s first killer whale breeding base was put into operation on Friday. At present, there are five male and four female killer whales here.’ Ugh.

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Killer Whale Facilities #1

Facility: Vancouver Aquarium

First Orca Held:Moby Doll, survived 55 days in captivity

Last Orca Held: Bjossa, was moved to Seaworld San Diego when a companion for her could not be found, to live with other orcas, and also to receive better medical care.

Total Orcas Held:11

Deaths: 7

Transfers: 3

Releases:1

Average Age at Death: 10 (including infant deaths), 17.5 (excluding infant deaths)

Births: 3

Orcas From Wild: 7

Years Active: 1964-2001 (still active, with no orca program)

Notable Facts: Vancouver Aquarium has kept 5 orcas without orca companions. Moby Doll, for his entire life in captivity, Skana for about a year, Hyak 2 for about a year, Kyosha (separated from Bjossa for medical care), and Bjossa (for almost 4 years). Vancouver Aquarium is often noted as the facility which started killer whale captivity, with Moby Doll, though this is false as Wanda at Marineland of the Pacific was the first captive orca. Vancouver aquarium had a very unsuccessful breeding program, which it abandoned after Bjossa’s last successful calf, and to my knowledge, was the first facility to put an orca on birth control. Vancouver Aquarium kept orcas with Pacific White Sided Dolphins, or at least did at the beginning and end of the orca program. After sending Bjossa to Seaworld, there were and still are no plans to ever continue holding orcas, however, the Vancouver Aquarium did help release Springer back into her native pod. Springer was never kept in a tank though, and her captive life was spent in a sea net with minimal human contact. Currently the aquarium holds two white sided dolphins from Japan, two rescued harbour porpoises, a rescued false killer whale, and a wild caught beluga as well as her captive born daughter. Recently, the Vancouver Parks board voted to stop captive cetacean breeding at the aquarium, but the aquarium is fighting back, trying to overthrow the ruling. The Vancouver aquarium is one of only three Canadian facilities to have ever held orcas, and is often regarded as one of the best aquariums in North America, and the world.

Photos belong to their owners (most did not have links attached for me to ask for permission) I WILL take them down if asked by their authors.

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Where are you from?

This has probably been sitting in my ask for two years but in from Canada!

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Hey dudes!

I've noticed that YouTube is one platform really lacking in cetacean history so I'm going to start a YouTube channel. To start with I'll probably do an intro, then recreate some of my posts here as videos. I'm going to start writing some, and hopefully get some videos up starting at the beginning of March. If you have any ideas for videos, send me some messages! I'll be discussing topics from a critical viewpoint, going over anti views/pro views and then mine which typically fall in between but lean to anti. Also if anyone wants to collaborate on it I'm open to that. We could do discussion videos on current events in the ceta video and have different people with different viewpoints discussing said topics. Anyway lemme know what you think! Is this even a good idea?

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This was based on van Aqua belugas. SIP sweethearts :(

Only you, only I World farewell, world goodbye To our home ‘neath the sea We shall fly, follow me

x

#I think this was Aurora and Baka but I'm not sure lol can't remember

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Hey, back on this account after a long break. If there's enough interest I might revive this :3

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R u pro cap?

No? You know what else I’m not? An active blogger lol

 if I have new information that I feel is worth sharing, that others aren’t I might revive this but I really think that the information I had that was valuable to the community, I’ve shared, and what I haven’t shared, others are doing a good job of sharing with more success.

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DID YALL SEE THIS BS ASK SEAWORLD RESPONSE:

“Kohana’s calf was not inbred. In all of our breeding programs, SeaWorld follows zoological best practice to ensure the sustainability of a healthy, genetically diverse, and demographically varied population. There was no reason to assume that a lack of success with the first calf necessarily meant Kohana would not attend to a second calf. “

Apparently Adan and Vicky aren’t inbred at all... their parents totally weren’t neice and uncle. 

And orcas apparently don’t learn maternal skills like evidence suggests  

#why do i go on this site

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Nami

#my art

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#I did the thing

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Very tempted to do a digital doodle of an orca but with the pride rainbow colours instead of the black markings, should I?

#this ruling is still being challenged tho ugh #PS I'm a lesbian and I'm tHRILLED #even tho I'm Canadian lmfao #I plan on getting dual citizenship

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//not cetacean but if any of u guys like bettas u should follow my betta blog notanotherbettablog (I can’t link it lmfao)

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These are VERY dated photos and please don’t attribute these to the recently tragedy that happened, but look at Freya’s chin, that marking looks VERY similar to what Valentin has perpetually had. I’m wondering if it is an allergy to the stage paint that’s genetic, or if there is some weird fungal infection in the pod. 

Granted, recent photos of Freya showed her without this but I found these today while painting her and they caught my eye

#freya #orca

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Freya with baby Valentin

Very sad to read of Freya’s unexpected death this morning, and as I normally do I decided to paint something. Freya was about 34 and her cause of death is not yet released, Valentin was her only live calf (Freya had 5 calves, but 4 were stillborn) and my thoughts are with him right now as males tend to do poorly when their mothers die. 

Swim in peace Freya

#art #my art