Mate urgently needed for ‘ugly’ fish

May 10, 2013
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cichlidMale mangarahara cichlids are distinguished from the females by their size and flowing fins

London Zoo is appealing to fish keepers to try to find a mate for a critically endangered, tropical species.

The Mangarahara cichlid is extinct in the wild but the three in captivity are all male.

The Zoo, which describes the fish as “gorgeously ugly”, is hoping to start a conservation programme if a fit female can be found for the captive males.

And with two of the males now 12 years old, the quest is said to be extremely urgent.

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I think there’s probably a very slim to no chance of this fish surviving”

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Brian Zimmerman
London Zoo

These cichlids were named after the Mangarahara river in Madagascar where they were first found.

The construction of dams on the river caused the streams they lived in to dry up and the fish is now believed to be extinct in its natural habitat.

Bachelor boys

There are two males in captivity at London Zoo and another in Berlin. There had been a female in captivity at the German zoo but attempts to breed ended in disaster when the male killed her.

“It’s a fairly common thing with cichlids,” London Zoo’s aquarium curator Brian Zimmerman told BBC News.

CichlidThe hope is that the much sought after female cichlid will be found in a private collection somewhere around the world

“They are unusual fish compared to many in that they practise pair bonding and parental care of the eggs and the fry, so there’s a lot of tussling that goes on between them.”

Having carried out a search with other aquariums around the world and failed to find a mate for their bachelor boys, the team at the Zoological Society of London are now hoping that someone may have a female in a private collection.

According to Mr Zimmerman, if you have one you’re likely to know it.

“They are not a particularly beautiful fish – they are gorgeously ugly, they are unusual. They are more a connoisseur’s type of fish. They need quite a bit of space; the males are bigger than your hand, and they need a decent tank,” he added.

Given the age profile of the London males and the failure to find a mate in the world’s zoos, Mr Zimmerman is not very confident for the future of the species.

“I’m not very hopeful. This freshwater fish crisis is huge worldwide, and as water becomes diverted for human use it becomes scarcer and fish generally lose out,” he said.

“I think there’s probably a very slim to no chance of this fish surviving.”

London Zoo is asking anyone with information about female cichlids to email the team at [email protected]

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Article source: http://www.bbc.co.uk/news/science-environment-22468206#sa-ns_mchannel=rss&ns_source=PublicRSS20-sa The feed :

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