Dernieres nouvelles du SCDB
- "Ecological Civilization: Building a Shared Future for All Life on Earth" is set to frame next year's UN Biodiversity Conference, to be held in October in Kunming, Yunnan Province, China.
- Following a summer of dramatic heat waves and forest fires, and close on the heels of a landmark scientific report charting an unprecedented decline in nature, the global community came together from 27-30 August in Nairobi to deliberate over an appropriate response.
- Statement by Ms. Cristiana Pas?ca Palmer, Executive Secretary, Convention on Biological Diversity, at the closing of the first meeting of the Open-ended Working Group on the Post-2020 Global Biodiversity Framework, Nairobi, 30 August 2019
Morphometric and genetic characterization of sympatric population of Clarias gariepinus and C. aguillaris from Senegal
|Download||Agnèse et al 1997 Clarias gariepinus et C anguillaris.pdf (French, 285 KB)|
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|1||French||Agnèse et al 1997 Clarias gariepinus et C anguillaris.pdf (current)||Célestin Mizani||05 Jan 2016||285 KB||application/pdf|
A sample of African Clarias catfishes from the Senegal River was studied using morphometry, allozyme variation, microsatellites and RFLPs of mitochondrial DNA. They all confirmed the
presence of two species, C. gariepinus and C. anguillaris. The two species were closely related genetically and no diagnostic loci were found in allozymes and microsatellites studies. Two of
the 11 haplotypes of mtDNA observed were shared by both species. Three of the four assays (morphometry, allozymes and microsatellites) allowed a precise characterization of both. One
specimen occupied an intermediate position in the analysis of the data; it was considered an F1 hybrid whose possible origin is discussed.