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@worldbank.org> Sent: 02 June 2019 11:31 To: john walakira <johnwalakira2003@yahoo.co.uk> Cc: sarnissa-african-aquaculture Mailing List <sarnissa-african-aquaculture@lists.stir.ac.uk>; Babatunde Oreyemi <oreyemibabs@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@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>
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@stir.ac.uk<mailto:william.leschen@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@worldbank.org<mailto:rbrummett@worldbank.org>> Sent: 02 June 2019 11:31 To: john walakira <johnwalakira2003@yahoo.co.uk<mailto:johnwalakira2003@yahoo.co.uk>> Cc: sarnissa-african-aquaculture Mailing List <sarnissa-african-aquaculture@lists.stir.ac.uk<mailto:sarnissa-african-aquaculture@lists.stir.ac.uk>>; Babatunde Oreyemi <oreyemibabs@gmail.com<mailto:oreyemibabs@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@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> ________________________________ The University achieved an overall 5 stars in the QS World University Rankings 2018 The University of Stirling is a charity registered in Scotland, number SC 011159. <20130720_155050.jpg> <20130720_155015.jpg>
Hi, Adipose fin seems to be rayed. So, not a Chrysichthys and maximum size of C. spp. in <https://bowtie.mailbutler.io/tracking/hit/2247547b-0576-4c3f-9a1f-dcbfa1f3d261/bf9fa47e-6b3a-4282-bc0b-052282453c45> West Africa is 65 cm LT. For me, seems to be Clarotes laticeps (max size: 80 cm) Specimens in pictures 20130720_155015 are Auchenoglanis, looks like A. occidentalis. rgds Yves Fermon _______________________________________________ PhD Hydrobiologiste/Ichtyologue 18 rue Jean Richepin, 91120 Palaiseau, France E-Mail: tropi91@mac.com tél. +33 625958912 _______________________________________________ http://www.yves-fermon.com _______________________________________________
Le 2 juin 2019 à 15:50, Randall Brummett <rbrummett@worldbank.org> a écrit :
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@stir.ac.uk <mailto:william.leschen@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@worldbank.org <mailto:rbrummett@worldbank.org>> Sent: 02 June 2019 11:31 To: john walakira <johnwalakira2003@yahoo.co.uk <mailto:johnwalakira2003@yahoo.co.uk>> Cc: sarnissa-african-aquaculture Mailing List <sarnissa-african-aquaculture@lists.stir.ac.uk <mailto:sarnissa-african-aquaculture@lists.stir.ac.uk>>; Babatunde Oreyemi <oreyemibabs@gmail.com <mailto:oreyemibabs@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@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 <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> The University achieved an overall 5 stars in the QS World University Rankings 2018 The University of Stirling is a charity registered in Scotland, number SC 011159. <20130720_155050.jpg> <20130720_155015.jpg>
Sarnissa-french-aquaculture mailing list Sarnissa-french-aquaculture@lists.stir.ac.uk http://lists.stir.ac.uk/cgi-bin/mailman/listinfo/sarnissa-french-aquaculture
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@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@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@worldbank.org> *Sent:* 02 June 2019 11:31 *To:* john walakira <johnwalakira2003@yahoo.co.uk> *Cc:* sarnissa-african-aquaculture Mailing List < sarnissa-african-aquaculture@lists.stir.ac.uk>; Babatunde Oreyemi < oreyemibabs@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@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> 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>
------------------------------ The University achieved an overall 5 stars in the QS World University Rankings 2018 The University of Stirling is a charity registered in Scotland, number SC 011159.
<20130720_155050.jpg>
<20130720_155015.jpg>
-- *Emmanuel T.D Mensah (PhD)* *Research Scientist, CSIR/WRI-ARDECP.O.Box 139, AkosomboTel: +233-24-4515497; +233-20-8287957* *Skype: meteds1*
Ce poisson est Auchnoglanis occidentalis, il se trouve dans le lac Volta au Ghana. Un membre du groupe poisson-chat. Emmanuel Mensah Tetteh-Doku Ghana From: Emmanuel Mensah Tetteh-Doku <meted2@gmail.com> Sent: 03 June 2019 10:53 To: Randall Brummett <rbrummett@worldbank.org> Cc: William Leschen <william.leschen@stir.ac.uk>; sarnissa-african-aquaculture Mailing List <sarnissa-african-aquaculture@lists.stir.ac.uk>; sarnissa-french-aquaculture Mailing List <sarnissa-french-aquaculture@lists.stir.ac.uk> Subject: Re: Who can identify this fish 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@lists.stir.ac.uk<mailto:sarnissa-african-aquaculture@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@stir.ac.uk<mailto:william.leschen@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@worldbank.org<mailto:rbrummett@worldbank.org>> Sent: 02 June 2019 11:31 To: john walakira <johnwalakira2003@yahoo.co.uk<mailto:johnwalakira2003@yahoo.co.uk>> Cc: sarnissa-african-aquaculture Mailing List <sarnissa-african-aquaculture@lists.stir.ac.uk<mailto:sarnissa-african-aquaculture@lists.stir.ac.uk>>; Babatunde Oreyemi <oreyemibabs@gmail.com<mailto:oreyemibabs@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@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> ________________________________ The University achieved an overall 5 stars in the QS World University Rankings 2018 The University of Stirling is a charity registered in Scotland, number SC 011159. <20130720_155050.jpg> <20130720_155015.jpg> -- Emmanuel T.D Mensah (PhD) Research Scientist, CSIR/WRI-ARDEC P.O.Box 139, Akosombo Tel: +233-24-4515497; +233-20-8287957 Skype: meteds1
Dear all,Related to this two atached pictures, as I know, I can confirm 100% it's absolitly not belong to Chrisychtis nigrodigitatus.Best regards to allSaurin HemSent from my Samsung Galaxy smartphone. -------- Original message --------From: William Leschen via Sarnissa-african-aquaculture <sarnissa-african-aquaculture@lists.stir.ac.uk> Date: 02/06/2019 13:17 (GMT+01:00) To: Randall Brummett <rbrummett@worldbank.org>, john walakira <johnwalakira2003@yahoo.co.uk> Cc: sarnissa-african-aquaculture Mailing List <sarnissa-african-aquaculture@lists.stir.ac.uk>, sarnissa-french-aquaculture Mailing List <sarnissa-french-aquaculture@lists.stir.ac.uk> Subject: RE: Who can identify this fish 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@worldbank.org> Sent: 02 June 2019 11:31 To: john walakira <johnwalakira2003@yahoo.co.uk> Cc: sarnissa-african-aquaculture Mailing List <sarnissa-african-aquaculture@lists.stir.ac.uk>; Babatunde Oreyemi <oreyemibabs@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@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> 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>
Hello, It is an Auchenoglanis (occidentalis?): look and compare the mouth to that fish I caught in Maï Pili river (Congo Brazzaville, 1988): [cid:be520905-564c-4e9b-bf35-f64b2f056b60] You can find ref in : Faune des poissons de l'Afrique de l'Ouest_(ORSTOM/MRAC édition, 1992) Tome 2, p.422 Regards Jean-Pierre Marquet [cid:7521bd2d-3a91-40fb-842e-5ddc77f1943d] ________________________________ De : Sarnissa-african-aquaculture <sarnissa-african-aquaculture-bounces@lists.stir.ac.uk> de la part de William Leschen via Sarnissa-african-aquaculture <sarnissa-african-aquaculture@lists.stir.ac.uk> Envoyé : dimanche 2 juin 2019 13:17 À : Randall Brummett; john walakira Cc : sarnissa-african-aquaculture Mailing List; sarnissa-french-aquaculture Mailing List Objet : RE: Who can identify this fish 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@worldbank.org> Sent: 02 June 2019 11:31 To: john walakira <johnwalakira2003@yahoo.co.uk> Cc: sarnissa-african-aquaculture Mailing List <sarnissa-african-aquaculture@lists.stir.ac.uk>; Babatunde Oreyemi <oreyemibabs@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@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> [https://ipmcdn.avast.com/images/icons/icon-envelope-tick-round-orange-animated-no-repeat-v1.gif]<https://www.avast.com/sig-email?utm_medium=email&utm_source=link&utm_campaign=sig-email&utm_content=webmail> Garanti sans virus. www.avast.com<https://www.avast.com/sig-email?utm_medium=email&utm_source=link&utm_campaign=sig-email&utm_content=webmail>
participants (6)
-
Emmanuel Mensah Tetteh-Doku -
Jean-Pierre Marquet -
Randall Brummett -
saurin.hem -
William Leschen -
Yves Fermon