The bicolor shark extinct?

[Mike Noren]

I just saw this:
http://www.redlist.org/search/details.php?species=7807

Is it really true that the bicolor shark is extinct in the wild?

Also check the status of Botia sidthimunki - "critically endangered".

[Mike Noren]

(Mike Noren) wrote in message >...
> I just saw this:
> http://www.redlist.org/search/details.php?species=7807
>
> Is it really true that the bicolor shark is extinct in the wild?

Jeez, I hate googles post function. My entire message lost AGAIN!

Anyway, yes it really is true, according to the main authority on the
subject, Kottelat. However, Fishbase & IUCN Red List misrepresent him
when they say that the cause of the extinction was collection for the
ornamental fish trade. Kottelat says the exact opposite, that
collection probably WASN'T the cause of the extinction, and instead he
credits the trade for the species still being alive at all (in
captivity).

[Eric Schreiber]

(Mike Noren) wrote:

>Anyway, yes it really is true, according to the main authority on the
>subject, Kottelat. However, Fishbase & IUCN Red List misrepresent him
>when they say that the cause of the extinction was collection for the
>ornamental fish trade. Kottelat says the exact opposite, that
>collection probably WASN'T the cause of the extinction, and instead he
>credits the trade for the species still being alive at all (in
>captivity).

Have there been any documented cases where extinct wild species of
hobbyist variety fish were reintroduced using captive bred stock?


--
www.ericschreiber.com

[Mike Noren]

Eric Schreiber > wrote in message >...

> >Anyway, yes it really is true, according to the main authority on the
> >subject, Kottelat. However, Fishbase & IUCN Red List misrepresent him
> >when they say that the cause of the extinction was collection for the
> >ornamental fish trade. Kottelat says the exact opposite, that
> >collection probably WASN'T the cause of the extinction, and instead he
> >credits the trade for the species still being alive at all (in
> >captivity).
>
> Have there been any documented cases where extinct wild species of
> hobbyist variety fish were reintroduced using captive bred stock?

Not really*, not to my knowledge. This mainly because the most common
reason for fish to go extinct is that their habitat is destroyed,
meaning there is nowhere to reintroduce them. There is, for instance,
little point in reintroducing any of the victoria cichlids maintained
in aquaria to lake victoria.

*whole species of e.g. some pupfish have been maintained in aquaria
for brief periods of time before being returned to the wild, and I
think there are som instances where species extinct in their original
water have been introduced to other waters. Regarding the pupfishes I
once read an interesting story written by a park ranger, who told the
story of how he once carried an entire species in two buckets of
water.