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Introduction
Didier Paugy worked at the 207 - Biology of Aquatic Organisms and Ecosystems (BOREA), Institute of Research for Development. Since 2015, he is retired. Didier did research in Ecology, Linnaean Taxonomy and Systematics (Taxonomy). His most recent publications are 'The Inland Water Fishes of Africa: Diversity, Ecology and Human Use' (677 p., 2017) and 'Le lac Victoria: Un écosystème bouleversé par l'Homme' (273 p., 2018) .
Publications
Publications (139)
Using all data sources available, we collected 2,189 nominal scientific names that have been applied to the fishes from Gabon. Data from the literature and online database indicate that 1,062 valid species of fishes live in Gabonese waters, with 288 of these strictly restricted to freshwaters, 592 strictly restricted to marine environments and 182...
Comment, depuis plusieurs décennies, la recherche scientifique contribue-t-elle au développement des pays du Sud ? À travers plus de 100 succès emblématiques de la recherche en partenariat, cet ouvrage nous plonge au coeur des grandes questions de développement : oeuvrer pour des sociétés plus justes, lutter contre les maladies, faire face aux risq...
Depuis toujours le lac Victoria, la plus vaste étendue d'eau douce de l'Afrique tropicale, a nourri des rêves d'aventure et d'exploration. Pourtant , il n'existait jusqu'ici aucune synthèse en langue française concernant son écologie. Ce livre propose, dans un style accessible à tous, d'expliquer l'évolution du lac Victoria, notamment depuis le mil...
Depuis toujours, le lac Victoria, la plus vaste étendue d'eau douce de l'Afrique tropicale, a nourri des rêves d'aventure et d'exploration. Pourtant, il n'existait jusqu'ici aucune synthèse en langue française concernant son écologie. Ce livre propose, dans un style accessible à tous, d'expliquer l'évolution du lac Victoria, notamment depuis le mil...
The equilibrium of inland hydrosystems is presently a cause for concern, with species extinction rates there estimated to be 5 times higher than for terrestrial fauna in the 21st century. Urgent measures must be taken to conserve these ecosystems particularly with regard to fishes, which represent an especially rich and diverse evolutionary heritag...
The chromosomal diversity within six species of Mormyridae belonging to six different genera (Gnathonemus petersii, Marcusenius moorii, Ivindomyrus obdenboschi, Brienomyrus sp., Stomatorhinus walkeri and Petrocephalus microphthalmus) is investigated for the first time. These species have a conserved diploid chromosome number of 2n = 50 (except G. p...
To explain the spatial variability of fish taxa at a large scale, two alternative proposals are usually evoked. In recent years, the debate has centred on the relative roles of present and historical processes in shaping biodiversity patterns. In Africa, attempts to understand the processes that determine the large scale distribution of fishes and...
In this article, I analysed the biogeographical distribution and the historical origin of freshwater fish of the Ethiopian
Rift Valley (ERV) region which is not a homogeneous area. The Ethiopian region, including Eritrea and part of Somalia, includes
13 basins as geographical units. A comparison was carried out with four Near East geographical unit...
The history of ichthyology in Africa is reviewed. From the time of the Ancient Egyptians to the present, more than 3200 species have been discovered, drawn and described. Michel Adanson initiated the first material collections during the 18th century. During the 19th century, the work of travelling scientists (Étienne Geoffroy Saint-Hilaire, Andrew...
Le film Le Cauchemar de Darwin se présente comme un documentaire. Il s'agit en réalité d'une fiction. L'excellent accueil réservé à ce film doit beaucoup aux chocs visuels qui dénoncent les drames que subissent les populations africaines. Mais ces calamités ne forment qu'un amalgame suspect et peu crédible. L'aspect écologique est survolé et les co...
To explain the spatial variability of fish taxa at a large scale, two alternative proposals are usually evoked. In recent years, the debate has centred on the relative roles of present and historical processes in shaping biodiversity patterns. In Africa, attempts to understand the processes that determine the large scale distribution of fishes and...
The precise number of extant fish species remains to be determined. About 28,900 species were listed in FishBase in 2005,
but some experts feel that the final total may be considerably higher. Freshwater fishes comprise until now almost 13,000
species (and 2,513 genera) (including only freshwater and strictly peripheral species), or about 15,000 if...
The phylogenetic relationships within the piranhas were assessed using mitochondrial sequences with the aim of testing several hypotheses proposed to explain the origin of Neotropical diversity (palaeogeography, hydrogeology and museum hypotheses). Sequences of the ribosomal 16S gene (510 bp) and control region (980 bp) were obtained from 15 locali...
Abstract – We examined patterns in fish species assemblages structure and function along environmental gradients in rivers of Gabon. Species presence–absence data from 52 sites were first analysed by canonical correspondence analysis. Results showed that the position of sites along the upstream–downstream gradient, together with elevation and water...
The African family Alestidae (Ostariophysii: Characiformes) includes today 13 genera, among which seven are monospecific. The size range observed in the family greatly varies with species ranging from 21 mm up to 130 cm for more than 50 kg. Among the Alestidae, three tribes were previously identified: the Alestini, the Hydrocinini and the Petersiin...
Synchronous fluctuations of the abundance of several populations at a regional scale can be a sign of a climatic effect on their dynamics (Moran effect). However, the interpretation of spatial synchrony is often complicated by the interaction between climatic disturbances and migrations between the studied populations.
We addressed this question by...
Onchocerciasis is a widespread disease in intertropical Africa, which, ultimately, causes irreversible blindness. The disease is transmitted by a small blackfly, Simulium damnosum (Diptera), which has aquatic larval and pupal stages. The breeding sites of the blackflies are riffles. These river reaches are the targets of the control campaign of the...
In the tropics, there is very little information on fish reproduction in intermittent streams and most of the studies are from the neotropic regions. In temporary rivers, environmental conditions are sharply contrasted and the variation amplitude of hydrological and physicochemical characteristics is high. In the Baoulé River (Mali), during the pea...
In the tropics, there is very little information on fish reproduction in intermittent streams and most of the studies are from the neotropic regions. In temporary rivers, environmental conditions are sharply contrasted and the variation amplitude of hydrological and physicochemical characteristics is high. In the Baoulé River (Mali), during the pea...
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Maladie largement répandue en Afrique intertropicale l'onchocercose est un fléau qui provoque, à son stade ultime, une cécité irréversible. La maladie est transmise par un petit Diptère, #Simulium damnosum$, qui présente une phase larvaire et nymphale aquatique. Ce sont les gîtes larvaires de ce vecteur, biefs à courant rapide des rivières, que le...
Taxonomy is the science of naming and describing organisms. It is a highly formalized science whose rules are established and revised regularly by an International Commission of Zoological Nomenclature created in 1895. The International Code of Zoological Nomenclature contains all the rules for designating animal species which are the same for all...
Long-term variability of some community parameters was studied in 18 riverine fish assemblages located in France and West Africa. Salient results are :
(1) Coefficient of variation (CV) of species richness, CV of total abundance and average CV of population abundance for assemblage members increased with study time span.
(2) Within GROSSMAN et al....
Long-term variability of some community parameters was studied in 18 riverine fish assemblages located in France and West Africa. Salient results are : (1) Coefficient of variation (CV) of species richness, CV of total abundance and average CV of population abundance for assemblage members increased with study time span. (2) Within GROSSMAN et al....
La présente étude porte sur la structure trophique des communautés de poissons subsistant dans quelques mares résiduelles du Baoulé (haut bassin du Sénégal) au Mali. Il est d'abord montré que les espèces limnivores et phytophages possèdent un intestin significativement plus long que les espèces des autres catégories trophiques, notamment les carniv...
This is a continuation to the book abstracted as 92L/06842, summarizing current knowledge on systematics for the area lying from the Senegal Basin in the NW to the Chad Basin in the NE and the Cross river to the south. Taxonomic descriptions of 558 species, divided into 180 genera and 61 families, are given. The guide is intended primarily to help...
An account of current knowledge on the systematics of fresh and brackish water fish of the area lying from the Senegal Basin in the NW to the Chad Basin in the NE and the Cross River to the S. Contains taxonomic descriptions of 558 valid species, divided into 180 genera and 61 families. The guide is intended primarily to help ichthyologists identif...
Les populations de #Petrocephalus$ d'Afrique de l'Ouest sont étudiées à partir d'observations morphométriques récentes complétées par des données génétiques et électrophysiologiques. La taxinomie de ce genre est de cette manière clarifiée dans une zone géographique située entre le bassin du Sénégal et le delta du Niger. Trois nouvelles espèces sont...
L'alimentation de #Brycinus leuciscus$ a été étudiée dans une mare alimentée par le fleuve Niger près de Bamako. Dans cet habitat, cette espèce possède un régime omnivore dans lequel la quantité de proies allochtones augmente en saison des pluies. Elle se nourrit surtout durant la photophase. Des observations en aquarium montrent que la détection d...
Une mise au point des connaissances sur la faune ichtyologique des bassins nilo-soudaniens est présentée, en tenant compte des diverses récoltes réalisées par les auteurs et des collections déposées dans les musées européens. La nomenclature a été actualisée en tenant compte des révisions taxonomiques récentes, et les synonymies ont été mentionnées...