New subject: Who can identify this fish

2 Jun 2019

Dear Randy

Thank you  for writing in  – although im not an expert !!  that’s what I thought  -
Chrysichthys  nigrodigitalis  - what  the French and ivorians were doing well at  breaking
the hatchery cycle and grow out in Cote D Ivoire in 1990s – 120 MT  in one year  late 90s
from one farm  unfortunately this stopped during the later  troubles – If it is this  
fish they are found widely in the commercial tilapia  cage nets on Lake Volta  entering
when smaller with the tilapia  and then growing to significant sizes  1.5 – 2.0kg  in just
6-8months from the feed dropping down through the cage – They are highly  valued in  Ghana
 (3 X kg price compared to Clarias and tilapia)  whilst still not grown commercially  to
any scale –  to  my knowledge?  - But surely have potential as a commercial species – look
out for  French published papers on  the Machiron  as they  call it  from 1990s  ……
Perhaps my French and francophone colleagues can write in and tell us more details?
Best wishes will

Cher Randy

  - Bien que je ne sois pas un expert !! C’est ce que je pensais - Chrysichthys
nigrodigitalis - ce que les Français et les Ivoiriens faisaient bien pour briser le cycle
des écloseries et se développer en Côte D Ivoire dans les années 1990           - 120 MT
en une année à la fin des années 90 d’une ferme, malheureusement, cela s’est arrêté au
cours des derniers troubles - Si c’est ce poisson qu’ils trouvent en abondance dans les
filets commerciaux de cages à tilapia du lac Volta qui entrent plus petits avec le tilapia
et atteignent ensuite des tailles significatives de 1,5 à 2,0 kg en seulement 6 à 8 mois,
à la suite de la chute des aliments à travers la  valeur au Ghana (3 X kg prix comparé à
Clarias et tilapia) sans grandir commercialement à une échelle - à ma connaissance? - Mais
il y a sûrement du potentiel en tant qu'espèce commerciale - recherchez les articles
publiés en français sur le Machiron, comme ils l'appellent depuis les années 1990…

Peut-être que mes collègues français et francophones pourraient nous écrire et nous donner
plus de details?

Amicalement  Will

See attached
From: Randall Brummett &lt;rbrummett(a)worldbank.org&gt;
Sent: 02 June 2019 11:31
To: john walakira &lt;johnwalakira2003(a)yahoo.co.uk&gt;
Cc: sarnissa-african-aquaculture Mailing List
&lt;sarnissa-african-aquaculture(a)lists.stir.ac.uk&gt;uk>; Babatunde Oreyemi
&lt;oreyemibabs(a)gmail.com&gt;
Subject: Re: Who can identify this fish

This one is a chrysichthys species. Where was it caught?

Randy
Enviado desde mi iPhone

El jun. 1, 2019, a la(s) 08:08, john walakira via Sarnissa-african-aquaculture
<sarnissa-african-aquaculture@lists.stir.ac.uk<mailto:sarnissa-african-aquaculture@lists.stir.ac.uk>>
escribió:
[External]
Bagrus docmac one of those under the red list and very delicious and a high value fish.

http://www.iucnredlist.org/details/182237/0

Uganda (NARO-NaFIRRI) is developing it captive breeding technology but if have succeeded
in Nigeria, Please share information.

Regards,
John K. Walakira (PhD)
Senior Research Officer (Aquatic Animal Health),
Interim President-Elect, World Aquaculture Society-Africa Chapter,
Program Leader, Innovations and Post Harvest Fisheries Programme,
National Fisheries Resources Research Institute-NARO
P.O.Box 530,
Kampala, Uganda
Mob: +256 777 673696
Twitter: @JWalakira

On Friday, 31 May 2019, 01:09:26 GMT+8, Babatunde Oreyemi via Sarnissa-african-aquaculture
<sarnissa-african-aquaculture@lists.stir.ac.uk<mailto:sarnissa-african-aquaculture@lists.stir.ac.uk>>
wrote:

Hello,
This fish was caught in the wild. We are not sure of the name but sure that it's a
catfish member.
Kindly give us the name pls.
Babatunde Oreyemi,
Beekeeper/catfish fingerlings producer,
Ijebu Ode, Ogun state, Nigeria
Tel: +2348055203894
Whatsapp: +2349054569134
<IMG-20190530-WA0020.jpg>

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