scholarly journals Typologie de la pêche de la langouste verte Panulirus regius, De Brito Capello, 1864 sur le littoral de la Côte d’Ivoire (Afrique de l’Ouest)

2021 ◽  
Vol 15 (4) ◽  
pp. 1573-1580
Author(s):  
Ida Akissi Konan ◽  
Olivier Assoi Etchian ◽  
Basile Kouakou Kouame ◽  
Jean-Noel Yapi ◽  
Angelina Gbohono Loukou ◽  
...  

En Côte d’Ivoire, la langouste fait partir des crustacés présents dans les captures de la pêche maritime  artisanale. Cependant, aucune donnée scientifique n’est disponible quant aux acteurs de la pêche de cette protéine. Ainsi, la présente étude a pour objectif de caractériser les acteurs de la pêche à la langouste verte Panulirus regius (De Brito Capello, 1864) pratiquée au niveau de la Zone Economique Exclusive de la Côte d’Ivoire. L’étude a nécessité une enquête le long du littoral sur un effectif de 60 pêcheurs de langouste. Les résultats ont montré que la pêche langoustière est pratiquée essentiellement par les Ivoiriens et les Ghanéens. De plus, la tranche d’âge dominante chez ces pêcheurs est comprise entre 30 et 45 ans chez les Ivoiriens et Ghanéensavec des proportions de 20% et 25%, respectivement. Au niveau de la quantité de la langouste verte pêchée, la grande saison froide a enregistré la plus grande quantité de langoustes capturées.   English title: Fishing typology of the green lobster Panulirus regius, De Brito Capello, 1864 along the coast of Côte d’Ivoire (West Africa) In the Côte d’Ivoire, lobster is part of the crustaceans present in the catches of artisanal maritime fishing. However, no scientific data is available on the actors of the fishery of this protein. Thus, the objective of this study is to characterize the actors of the green lobster Panulirus regius (De Brito Capello, 1864) fishery practised in the Exclusive Economic Zone of the Côte d’Ivoire. The study required a survey along the coastline of 60 lobster fishermen. The results showed that green lobster fishing is mainly practised by citizens of Côte d’Ivoire and Ghana. Fishermen who practised this activity were aged between 30 and 45 years old with percentages of 20% and 25% for citizens of Côte d’Ivoire and Ghana, respectively. In terms of the quantity lobster captured, the largest quantity was recorded on the great cold season.

Author(s):  
Kouato Fulgence Kouakou Fokouo Kessia Irène ◽  
Agnissan Aka Jean-Paul Otchoumou Atcho

The diet of 400 specimens of Cardium costatum from the exclusive economic zone of Côte d'Ivoire was studied for two years depending on the hydrological seasons and the size of the individuals. Stomach contents were analyzed using frequency of occurrence, numerical frequency, and specific abundance methods. The results obtained show that this bivalve is a planktophagus and also feeds on inert organic matter (detritus) and bacteria. Phytoplankton forms the major constituent of its diet regardless of season and size. However, most immature young people have a specialist feeding strategy for Navicula and mature ones prefer Amphora.


2010 ◽  
Vol 37 (1) ◽  
pp. 43-50 ◽  
Author(s):  
Liu Jianping ◽  
Pan Xiaohua ◽  
Ma Jun ◽  
Tian Zuoji ◽  
Wan Lunkun

2021 ◽  
Vol 6 (1) ◽  
pp. 9
Author(s):  
Rie Roselyne Yotsu ◽  
Kouamé Kouadio ◽  
Aubin Yao ◽  
Bamba Vagamon ◽  
Motoi Takenaka ◽  
...  

We report here two cases of tinea capitis caused by Microsporum (M.) audouinii in Côte d’Ivoire, West Africa. The patients were a three-year-old boy and a six-year-old girl who presented with scaly patches on the scalp. The causative fungus was isolated using an adhesive tape-sampling method and cultured on Sabouraud dextrose agar plates. It was identified as M. audouinii both by its macroscopic and microscopic features, confirmed by DNA sequencing. These are the first documented cases of M. audouinii infections confirmed with DNA sequencing to be reported from Côte d’Ivoire. The practicality of the tape-sampling method makes it possible to carry out epidemiological surveys evaluating the distribution of these dermatophytic infections in remote, resource-limited settings.


PLoS ONE ◽  
2021 ◽  
Vol 16 (6) ◽  
pp. e0252770
Author(s):  
Pascal O. Aigbedion-Atalor ◽  
Itohan Idemudia ◽  
Medetissi Adom ◽  
Ethelyn E. Forchibe ◽  
Hospice Tossou ◽  
...  

The Neotropical invasive plant Chromolaena odorata R.M. King and H. Robinson (Asteraceae) is a serious weed in West and Central Africa and two biological control agents that have been introduced into West Africa to help reduce its impacts on agriculture and biodiversity, have established. The stem-galling fly, Cecidochares connexa (Macquart) (Diptera: Tephritidae), has spread widely across West Africa since its release in only Côte d’Ivoire, occurring in six countries. This study aimed to investigate whether the gall fly had spread further across West Africa and into Central Africa. Here, we surveyed C. odorata for C. connexa galls in Cameroon between October 2018 and October 2020, along roadsides, on farms, residential areas, and abandoned plots, encompassing various vegetation types. Additional surveys were conducted across four countries (Ghana, Togo, Benin Republic and Nigeria) in West Africa that we considered the probable pathway for the spread of the gall fly into Central Africa. Cecidochares connexa was present at five of the six locations surveyed in Cameroon, albeit in varying abundance. In Africa, these findings represent the first-ever report of C. connexa outside of West Africa. In West Africa, we recorded significant expansion in the geographic range of C. connexa, as reflected in the absent-present record of C. connexa in two locations in Nigeria and one in Ghana, as well as its occurrence in all locations surveyed in Benin Republic and Togo. Clearly, Ghana, Togo, Benin Republic and Nigeria served as the dispersal pathway of C. connexa from the release sites in Côte d’Ivoire into Cameroon, covering over 2,300 km. Following the spread and establishment of C. connexa into Cameroon, we anticipate that it will continue to spread further into other parts of Central Africa which are climatically suitable. Cecidochares connexa is currently the only biological control agent for C. odorata in Central Africa. Given that it has significantly reduced populations of C. odorata in other countries where it has established, it is expected to have a similar impact in Central Africa.


2016 ◽  
Vol 98 (0) ◽  
pp. 9344
Author(s):  
Ida Attoubé Monney ◽  
Issa Nahoua Ouattara ◽  
Raphaël N’doua Etilé ◽  
Maryse N’guessan Aka ◽  
Mamadou Bamba ◽  
...  

2014 ◽  
Vol 7 (6) ◽  
pp. 2248
Author(s):  
M Tanoh Kamelan ◽  
S Berte ◽  
G Konan N'Zi ◽  
M Bamba ◽  
G Goore Bi ◽  
...  

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