scholarly journals Epidemiology of Gill Monogenean Parasites Infections in Nile Tilapia Oreochromis Niloticus (Teleostei: Cichlidae) from Agneby River, Côte d’Ivoire

2021 ◽  
Vol 17 (34) ◽  
pp. 30
Author(s):  
Adou Yedehi Euphrasie ◽  
Blahoua Kassi Georges ◽  
Yeo Kolo ◽  
Konate Souleymane ◽  
Tiho Seydou
Keyword(s):  
Cote D'ivoire ◽  
Oreochromis Niloticus ◽  
Nile Tilapia ◽  
Côte D’Ivoire ◽  
Economic Loss ◽  
Parasitic Infections ◽  
Cote D’Ivoire ◽  
Côte D'ivoire ◽  
Nile Tilapia Oreochromis Niloticus ◽  
First Time

The Nile tilapia, Oreochromis niloticus is a fast growing fish and has a great importance for fisheries, aquaculture, and screen aquarium in Côte d’Ivoire. Parasitic infections constitute significant economic loss in fish production. The work based on Epidemiology of gill Monogenean parasites of O. niloticus from the Agneby River between August to December 2020, for the first time, was aimed to characterize the physicochemical parameters of this River, to inventory the gill Monogenean species in Nile tilapia, to analyze the parasitism as a function study areas and to highlight the parasite species’ distribution on the gill. A total of 102 specimens of fishes was sampled and examined for parasites. Gill helminthofauna of this fish consisted of Cichlidogyrus cirratus, C. tilapiae, C. halli and Scutogyrus longicornis. Fishes of the Agneby River at Agboville are more infested than the other ones due to environmental conditions. The examination of the two sides of the fish revealed that parasites species have the same affinity for the both sides of the fish. In contrast, at the level of the gill arch, these parasites preferred median gill arches (arches II and III).

New records of Afrotropical Tersilochinae (Hymenoptera: Ichneumonidae)

2019 ◽  
Vol 28 (2) ◽  
pp. 267-276
Author(s):  
A.I. Khalaim
Keyword(s):  
Sierra Leone ◽  
Cote D'ivoire ◽  
Côte D’Ivoire ◽  
New Records ◽  
Cote D’Ivoire ◽  
Côte D'ivoire ◽  
Afrotropical Region ◽  
First Time

A new data on distribution of 19 species of Tersilochinae (Ichneumonidae) belonging to the genera Allophrys Förster (four species), Aneuclis Förster (five spp.), Diaparsis Förster (eight spp.) and Tersilochus Holmgren (two spp.) in the Afrotropical Region are provided. Tersilochus abyssinicus Khalaim, 2006, syn. nov. is synonymised with T. moestus Holmgren, 1868. The subfamily Tersilochinae is recorded from Benin, Côte d’Ivoire, Mozambique, Niger, Nigeria, Sierra Leone, Togo, Zambia and Yemen for the first time.

The Curious Case of Ghana/Côte d'Ivoire: A Consistent Approach to Hydrocarbon Activities in the Disputed Area?

2019 ◽  
Vol 10 (1) ◽  
pp. 94-124
Author(s):  
Bin ZHAO
Keyword(s):  
Cote D'ivoire ◽  
Côte D’Ivoire ◽  
Ad Hoc ◽  
Cote D’Ivoire ◽  
Côte D'ivoire ◽  
First Time ◽  
Consistent Approach

AbstractThe Ghana/Côte d'Ivoire case is the first time that an ITLOS ad hoc chamber has addressed the lawfulness of unilateral hydrocarbon activities in a disputed maritime area. This paper analyzes the Chamber's ruling on Côte d'Ivoire's submission no. 2, which covers several important issues: the jurisdiction of the Chamber to decide on submission no. 2, the alleged violation of sovereign rights, and the alleged violation of Article 83(3) of UNCLOS. The paper argues that the Chamber's jurisdictional basis of forum prorogatum is questionable, and that there are inconsistent approaches between the Judgment and the Order of the provisional measures. Additionally, there are not only inconsistent understandings of the “Ivorian maritime area” within the same submission no. 2 by the Chamber, but also a logical gap in the Chamber's reasoning with regard to submission no. 2(iii). Consequently, the Chamber's inconsistent approaches may jeopardize the persuasiveness of its judgment.

scholarly journals Caractérisation de la pisciculture dans la région du Poro (Nord de la Côte d’Ivoire)

2021 ◽  
Vol 15 (3) ◽  
pp. 976-986
Author(s):  
Kouamé Marcel N’dri ◽  
Gboko Konan Gatien Brou ◽  
Kouamé Privat Yao ◽  
Dramane Diomande
Keyword(s):  
Cote D'ivoire ◽  
Oreochromis Niloticus ◽  
Côte D’Ivoire ◽  
Positive Impact ◽  
Fish Farming ◽  
Fish Food ◽  
Cote D’Ivoire ◽  
Côte D'ivoire ◽  
Cultivated Species ◽  
Heterobranchus Longifilis

Cette étude a été menée afin de faire un diagnostic de l’activité piscicole dans la région du Poro. Elle émane des résultats obtenus à l’issu de 2 mois d’enquêtes (mars et avril, 2014) auprès des pisciculteurs. Il ressort que la pisciculture est semi-intensive et pratiquée par des nationaux. La population de pisciculteurs est dominée par des acteurs dont l’âge est supérieur à 45 ans (75%). Les étangs utilisés sont en dérivation. Tous les acteurs fabriquent leur aliment poisson et éprouvent des difficultés à nourrir correctement les sujets. Ils ne bénéficient d’aucun encadrement technique de la part des structures en charge des productions halieutiques. Les espèces majoritairement élevées sont Oreochromis niloticus et Heterobranchus longifilis. La production totale annuelle est estimée à 8 600 ± 1697,1 kg avec un chiffre d’affaires par pisciculteur évalué à 2 876 700 FCFA. Cette activité constitue l’un des moyens de subsistance pour une frange de la  population. Sa redynamisation est recommandée afin d'améliorer son impact positif.   English title: Characterization of fish farming in the Poro region (North of Côte d'Ivoire) This study was carried out in order to make a diagnosis of the fish farming activity in the Poro region. It emanates from the results  obtained after 2 months of surveys (March and April, 2014) among fish farmers. It appears that fish farming is semi-intensive and  practised by nationals. The fish farming population is dominated by actors over 45 years old (75%). The ponds used are bypass. All the actors make their fish food and find it difficult to feed the subjects correctly. They do not benefit from any technical supervision from the structures in charge of fish production. The predominantly cultivated species are Oreochromis niloticus and Heterobranchus longifilis. The total annual production is estimated at 8,600 ± 1,697.1 kg with a turnover per fish farmer estimated at 2,876,700 FCFA. This activity constitutes one of the means of subsistence for a segment of the population. Its revitalization is recommended in order to improve its positive impact.

Chilo aleniellus (Lepidoptera: Pyralidae), a stem borer of maize in Côte d'Ivoire

1992 ◽  
Vol 82 (1) ◽  
pp. 67-72 ◽  
Author(s):  
P. Moyal ◽  
M. Tran
Keyword(s):  
Geographical Distribution ◽  
Cote D'ivoire ◽  
Côte D’Ivoire ◽  
Stem Borer ◽  
Forest Area ◽  
Cote D’Ivoire ◽  
Côte D'ivoire ◽  
Lepidoptera Pyralidae ◽  
First Time

AbstractThe stem borer, Chilo aleniellus (Strand) (Lepidoptera, Pyralidae) is recorded for the first time as a pest of maize in the western part of the forest area of Côte d'lvoire. Descriptions are given of the larva (including chaetotaxy), the pupa, and adult genitalia. The geographical distribution of this species is presented, and its importance as a pest in Côte d'Ivoire is discussed.

Allometric growth and condition factor of West African shrimp, Macrobrachium vollenhovenii (Herklots, 1857), in the rivers of Côte d'Ivoire

2014 ◽  
Vol 65 (10) ◽  
pp. 849
Author(s):  
Koffi Mexmin Konan ◽  
Allassane Ouattara ◽  
Kouassi Sébastino Da Costa ◽  
Abouo Béatrice Adépo-Gourène ◽  
Germain Gourène
Keyword(s):  
Cote D'ivoire ◽  
Côte D’Ivoire ◽  
Condition Factor ◽  
Biological Database ◽  
Allometric Growth ◽  
Cote D’Ivoire ◽  
K Value ◽  
Côte D'ivoire ◽  
Males And Females ◽  
First Time

The length–length and length–weight relationships and condition factor for Macrobrachium vollenhovenii are described using samples collected from the rivers of Côte d’Ivoire. The maximum carapace lengths (CLs) registered for males and females were 63.00 and 53.60 mm, respectively. All relationships between body length and CL and weight and CL were found to be highly significant, with r2 > 0.76 (P < 0.001). In the length–length relation, the allometry coefficient (b) ranged from 0.75 to 1.46 and varied according to the considered length and groups. The value of b of the length–weight relationship varied from 2.55 to 3.30. Although the three allometry types were observed, overall, M. vollenhovenii exhibited negative allometry. The condition factor (K) did not significantly vary among males and females. The K value decreased from the eastern to western Côte d’Ivoire. The present study presents, for the first time, results on the allometric growth and condition factors of M. vollenhovenii from the rivers of Côte d’Ivoire. Further, a biological database is established for use by fishery managers and in further research on the ecology, reproductive biology and aquaculture potentialities of this species.

Biocontrôle de l’infection à Pseudomonas aeruginosa multi-résistant par les bactériophages en aquaculture en Côte d’Ivoire

2020 ◽  
Vol 154 ◽  
pp. 15940-15949
Author(s):  
Amian Aristide KOUDOU ◽  
Solange KAKOU-NGAZOA ◽  
Audrey ADDABLAH ◽  
Kouadio Bernard ALLALI ◽  
Serge AOUSSI ◽  
...  
Keyword(s):  
Pseudomonas Aeruginosa ◽  
Cote D'ivoire ◽  
Oreochromis Niloticus ◽  
Côte D’Ivoire ◽  
Bacterial Load ◽  
Multidrug Resistant ◽  
Cote D’Ivoire ◽  
Côte D'ivoire

Objectif : Cette étude a pour objectif d’évaluer la réduction de l’infection à Pseudomonas aeruginosa par les bactériophages en aquaculture Méthodologie et résultats : Le phage (PaBor1a) de la bio-collection des phages de l’Institut Pasteur de Côte d’Ivoire et la souche Pseudomonas aeruginosa (PA001-2018) multi-résistante isolée des poissons piscicoles ont été utilisés pour cette étude. D’une part dans les conditions in vitro, 100 µl d’une solution de phage (108 UFP) et de PA001-2018 ont été mis en culture dans 5 ml de bouillon Luria Bethani pendant 24 h. D’autre part dans les conditions in vivo, un aquarium de 5 L d’eau contenant 6 poissons (Oreochromis niloticus) a été inoculé avec 100 µl de PA001-2018 et du phage PaBor1a pendant 24 h. En présence du phage, la charge bactérienne a été réduite après 2-4 h dans les tests in vitro et in vivo. La décroissance de la population bactérienne et la croissance de celle du phage ont été parallèlement observée. Ce résultat démontre l’efficacité du phage PaBor1a dans le contrôle de la bactérie PA001- 2018 multi-résistante. Conclusion et applications des résultats: La réduction de la charge bactérienne montre le bio contrôle de l’infection à Pseudomonas aeruginosa par le phage PaBor1a. Ce résultat se propose comme alternative thérapeutique pour la lutte contre les infections bactérienne en aquaculture par la méthode balnéaire Mots clés : aquaculture, Oreochromis niloticus, multi-résistant, phages, Pseudomonas aeruginosa. Koudou et al., J. Appl. Biosci. 2020 Biocontrôle de l’infection à Pseudomonas aeruginosa multi-résistant par les bactériophages en aquaculture en Côte d’Ivoire 15941 Biocontrol of multidrug-resistant Pseudomonas aeruginosa infection by bacteriophages in Cote d’Ivoire aquaculture ABSTRACT Objective: To evaluate the reduction of Pseudomonas aeruginosa multi-resistant infection in aquaculture tests by phage activity. Methodology and Results: The phage (PaBor1a) from the phage bio-collection of the Pasteur Institute of Côte d'Ivoire was used against multi-resistant Pseudomonas aeruginosa (PA001-2018) isolated from aquaculture fish in this study. The test in vitro was conducted by culture of , the phage (108 PFU) and 100 µl of PA001- 2018 in 3 ml of Luria Bethani broth for 24 h. And the test in vivo occurs in aquarium tank of 5 L containing 6 fishes (Oreochromis niloticus), and inoculated with 100 µl of PA001-2018 and phage PaBor1a (108 PFU) for 24 h. The negative tests were conducted without phage PaBor1a under the same conditions. The results shows that the presence of the phage, the bacterial load was reduced after 2- 4 h in both tests. Bacterial decay and phage growth were observed in parallel. This result demonstrates the efficacy of phage PaBor1a against the multidrug resistant PA001- 2018 bacteria in aquarium tank. Conclusion and applications of results: reduction of bacterial load show the bio control of Pseudomonas aeruginosa infection by phage PaBor1a. This result is proposed as a therapeutic alternative in aquaculture against bacterial infection in aquaculture by washing method Keywords: aquaculture, Pseudomonas aeruginosa, multi-resistant, phages

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