This fish is Auchnoglanis occidentalis, its found in the Volta lake in
Ghana. A member of the catfish group.
On Sun, Jun 2, 2019 at 4:32 PM Randall Brummett via
Sarnissa-african-aquaculture <sarnissa-african-aquaculture(a)lists.stir.ac.uk>
wrote:
Yes; this is the fish that gets into the cages in the
Volta Lake. These
grow fast but are light averse. We tried once to grow out a bunch that we
accidentally caught in a seine net, but they all hid in the bottom of the
cage.
Enviado desde mi iPhone
El jun. 2, 2019, a la(s) 07:17, William Leschen <
william.leschen(a)stir.ac.uk> escribió:
[External]
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 <rbrummett(a)worldbank.org>
*Sent:* 02 June 2019 11:31
*To:* john walakira <johnwalakira2003(a)yahoo.co.uk>
*Cc:* sarnissa-african-aquaculture Mailing List <
sarnissa-african-aquaculture(a)lists.stir.ac.uk>gt;; Babatunde Oreyemi <
oreyemibabs(a)gmail.com>
*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(a)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(a)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
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