Re: NANFA-- Bluenose shiner news [off topic]

Steffen Hellner (steffen_at_hellner.biz)
Thu, 18 Sep 2003 09:42:26 +0200

I agree to your arguments. But the sp. Mahachai may be a tank bred hybrid
form and then released. From this it is stable genetically (as stable as
genetics can be - homocygotic to the edge of 99%). Genetic research will
show in the nearer future.

You are surely right with the wild type of splendens. I have a "wild" strain
but it looks as it is not pure, too much color in it but stable phenotype
over more than 10 years now. Not really aggressive, rather small and slender
(depends much on nutrition), not too prolific. But a true wild one is hard
to find and even more to get at hands.

Steffen

> Von: anutej_at_loxinfo.co.th
> Antworten an: nanfa_at_aquaria.net
> Datum: Thu, 18 Sep 2003 05:45:16 +0700
> An: nanfa_at_aquaria.net
> Betreff: Re: NANFA-- Bluenose shiner news [off topic]
>
> That is a good one. Nobody knows for 100% sure if Mahachai betta
> is indeed a new species or originate from a variety evolved from
> release of fighting-form bettas from ancient times. Mahachai area is
> a hot spot for betta "arena" for hundred of years and both wild bettas
> [wild splendens, wild imbellis and smaragdina] and fighting-form
> bettas from all over the country have been brought into the area for
> fighting/betting purpose [some would have been released]. Anyway real
> Betta sp. Mahachai does exist in the wild and their outward appearance
> seems to be consistent throughout their natural range, and they breed
> true [F1 and F2 are similar to parents].
> The copper variety is developed from crossing Mahachai betta X
> domestic splendens and/or imbellis. They are not real wild Mahachai
> betta. Also years ago [the practice is still committed] there are
> Mahachai X imbellis betta cross sold as "Indo betta" and "real
> Mahachai betta" [which it is not real]. These fishes cause lots of
> coufusion to what real Beta sp. Mahachai actually is.
> Generally wildtype Betta splendens is NOT what is shown in most
> books. The big short thing is actually fighting-form splendens
> [Plakadmor]developed for fighting purpose. Real wildtype splendens
> [Plakadtung, Plakadluktung, Plakadpar] is much more slender and
> smaller and the coloration seems to be more or less similar throughout
> their range.
> I wonder if fighting-form betta is released into Betta
> sp.Mahachai habitat will they be fit enough to survive and spawn with
> Betta sp. Mahachai in such freechoice situation. Channa striata and
> Channa gachua do live in Mahachai betta's home and would be happy to
> deal with short, fat stuff that is released there.
> BTW if a fish is originated from natural hybrid of a few species
> and evolves over time in the wild till the phenotype is fixed
> [descendants's appearances are more or less uniform] in the wild
> should it be regarded as a morph, variety or species?
>
> Tony
> anutej_at_loxinfo.co.th
>
>
> Steffen Hellner wrote:
>>
>> Do you speak of the dubious Betta sp. Mahachai? I have had them, they for me
>> look like a hybride of imbellis x splendens x smaragdina. The Thais are very
>> good in mixing these species and build up viable strains, e.g. the very hard
>> fighters or the copper-colored. And they are as good in setting those
>> strains free. But maybe I am wrong and it is a valid species. Time will
>> show.
>>
>> Steffen
>>
>>> Von: anutej_at_loxinfo.co.th
>>> Antworten an: nanfa_at_aquaria.net
>>> Datum: Sun, 14 Sep 2003 01:31:51 +0700
>>> An: nanfa_at_aquaria.net
>>> Betreff: Re: NANFA-- Bluenose shiner news
>>>
>>> I agree that more evidence are needed before deciding to do drastic
>>> action. I remembered someone in the list said before that wekala is
>>> generally hard to collect except in some specific locations. Does
>>> anyone study wekala's distribution and migration fully yet? Where is
>>> wekala out of spawning season? What other factors can cause its
>>> disappearance from a few spots? drought, pollution, etc etc.?
>>>
>>> I and friends had been collecting a locale in Thailand that have a
>>> special wild betta last year. After half a day we got only a single
>>> female, so we were worried that, since the spot was collected by many
>>> people often, the betta might be wiped out by overcollecting. 2
>>> monthes later when the heavy rains and floods began my friend took a
>>> few anabantoid-lovers from overseas to the same site without much
>>> hope. They ended up getting two dozen bettas with only a few net
>>> swoop... The area is actually inaccessible in most parts with only a
>>> small fraction walkable and collectable, so most betta collected are
>>> likely a small part of the population that spill out of the main
>>> inaccessible area. Maybe wekala is not much different?
>>>
>>> Tony
>>> anutej_at_loxinfo.co.th
> /"Unless stated otherwise, comments made on this list do not necessarily
> / reflect the beliefs or goals of the North American Native Fishes
> / Association"
> / This is the discussion list of the North American Native Fishes Association
> / nanfa_at_aquaria.net. To subscribe, unsubscribe, or get help, send the word
> / subscribe, unsubscribe, or help in the body (not subject) of an email to
> / nanfa-request_at_aquaria.net. For a digest version, send the command to
> / nanfa-digest-request_at_aquaria.net instead.
> / For more information about NANFA, visit our web page, http://www.nanfa.org
/-----------------------------------------------------------------------------
/"Unless stated otherwise, comments made on this list do not necessarily
/ reflect the beliefs or goals of the North American Native Fishes
/ Association"
/ This is the discussion list of the North American Native Fishes Association
/ nanfa_at_aquaria.net. To subscribe, unsubscribe, or get help, send the word
/ subscribe, unsubscribe, or help in the body (not subject) of an email to
/ nanfa-request_at_aquaria.net. For a digest version, send the command to
/ nanfa-digest-request_at_aquaria.net instead.
/ For more information about NANFA, visit our web page, http://www.nanfa.org