Re: NANFA-- Collecting ethics

Steffen Hellner (steffen_at_hellner.biz)
Wed, 14 Jan 2004 01:23:39 +0100

Yap!

Steffen

> Von: Irate Mormon <archimedes_at_bayspringstel.net>
> Antworten an: nanfa_at_aquaria.net
> Datum: Tue, 13 Jan 2004 17:26:45 -0500
> An: "nanfa_at_aquaria.net" <nanfa at aquaria.net>
> Betreff: Re: NANFA-- Collecting ethics
>
> "Collecting" is a pretty broad term, and could include exploitation by
> commercial vendors. What I am mainly interested in is collecting by
> individual
> aquarists.
>
> Prost,
>
> Martin
> Jackson, MS
>
>
> Quoting Steffen Hellner <steffen_at_hellner.biz>:
>
>> Why didn4t I remember this striking example for extiction by
>> qvercollecting!;-) This it was stated in very first reports about the
>> extinction. Well, the opponents of pet hobby fire quick from the hip. Much
>> later it was claimed damming as the true reason.
>>
>> I am in contact with a commercial fish importer who has started research on
>> hormone induced breeding in several species (e.g. Synodontis-catfish) to
>> become independent from imports.
>>
>> And for overcollecting in general: even the Neon-Tetra which is collected in
>> numbers of as much as 600 Millions every year doesn4t show any effect from
>> this in its population density. But there are decreasing collections of
>> Hypancistrus zebra due to overcollecting. But the fish won4t get extinct by
>> this anyways as it is a species living in very deep water where even
>> professional dive-collectors don4t like to get. The Amazone at manaus is
>> more than 60 m deep. The Rio Xingu were hypancistrus lives nearly as deep.
>>
>> Still waiting for evidence that collecting of fish or any other cold-blooded
>> animal has ever lead to extinction.
>>
>> Steffen
>>
>>> Von: anutej_at_loxinfo.co.th
>>> Antworten an: nanfa_at_aquaria.net
>>> Datum: Mon, 12 Jan 2004 18:30:54 +0700
>>> An: nanfa_at_aquaria.net
>>> Betreff: Re: NANFA-- Collecting ethics
>>>
>>> As is the dwarf botia [Botia sidthimunki] so common in the hobby is
>>> officially extinct [unless new survey sometimes in the future find
>>> any] in Thailand now thanks to destruction of floodplain habitat and
>>> creation of dams blocking the migratory route [development]. The law
>>> comes out far too late and impact the breeding attempts so most fish
>>> farms breed them "underground". Fortunately[?] officials usually
>>> don't care much about hundreds of this loaches in shipping boxes
>>> exported so the commercial breeding can continue.
>>>
>>> Tony
>>>
>>>
>>> Steffen Hellner wrote:
>>>>
>>>> As coming from killis, maybe this is why I have developed my point of
>> view.
>>>> Many Cyprinodon and other pupfish (Crenichthys, Megupsilon, Cualac, the
>>>> african Aphanius apodus) are extinct in the wild but still present in
>> tanks.
>>>>
>>>> Many more are at the edge and will need backup as well. And even more
>> will
>>>> come to, soon. But I doubt there are enough people to stock them all.
>>>>
>>>> Steffen
>>>>
>>>>> Von: "Stan Perkins" <stanperkins_at_academicplanet.com>
>>>>> Antworten an: nanfa_at_aquaria.net
>>>>> Datum: Sun, 11 Jan 2004 23:41:53 -0600
>>>>> An: <nanfa_at_aquaria.net>
>>>>> Betreff: Re: NANFA-- Collecting ethics
>>>>>
>>>>> The sad side to this can be seen with killifish. Some species of killies
>> are
>>>>> not found in the wild anymore - just in tanks carefully bred and
>> preserved
>>>>> ready to be reintroduced, if - and that is a big if - the habitat is
>>>>> restored. Since most of it is under concrete, I don't forsee this
>> happening.
>>>>>
>>>>> Stan Perkins
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