In Senegal, a significant decrease in catches indicates that many demersal fish stocks are being overexploited. The white grouper Epinephelus aeneus, locally known as the 'thiof', is exploited by both small-scale and industrial fisheries. A 28-year database of E. aeneus along Senegalese coast provided Centre for Oceanographic Research Dakar-Thiaroye, size at maturity measured Dakar (Senegal) from monthly samples 2010, were used to analyse changes population structure area over past 37 years....

In this study, a total of 1068 specimens Sardinella aurita which 553 females and 515 males were examined. The objectif study was to determine the reproductive parameters aurita. sex ratio significantly in favor (55%). size at first sexual maturity estimated 18.9 cm for 18.0 males. monthly variation stages gonado-somatic index (GSI) allowed locate reproduction periods from February June September December. mean absolute fecundity 110.794 ± 7582 oocytes whereas relative about 422 26 per gram female.

Today, the development of information and communication technologies paved way for many innovations enabled emergence new economic models at social level. This dynamic will increase number mobile terminals in circulation African countries crescendo exposure users to electromagnetic waves emitted by these more precisely those using whose Specific Absorption Rate (SAR) is raised. Legislation exists reassure people, but daily raises questions about influence they can have on human body. To...

In Africa, the use of mobile terminals is part tools facilitating exchange data and transportation information in many fields. However, counterfeit have adverse consequences on health users, economy, telecommunication networks. They represent approximately 20% global market, causing economic losses, copyright infringements, issues for network operators. Indeed, combating counterfeiting requires strengthening existing instruments increased financial support. Governments must collaborate more...

In this study, a total of 64 fishing attempts was performed and 17775 specimens caught.The indirect method Holt (1963) used to estimate the selectivity parameters.The optimum selection lengths for E. fimbriata in 30, 32, 36 40 mm mesh size were 17.32, 18.48, 20.79 21.10 cm, respectively.Estimated values common factor standard deviation 5.77 1.48, respectively.Results indicated that using monofilament gillnets with 30 32 could have an increasing fishin g pressure on juvenile population but...

Mugil curema, known as white mullet, was one of the fish species encountered in fisheries landings Saloum Delta. In this study, morphometric parameters and reproductive biology were studied well influence environmental on its reproduction. Experimental carried out monthly The caught using surface drift nets. captured individuals measured weighed. gonads collected to determine sex stages sexual maturity. Out a total 406 sampled Delta, 306 females 100 males identified, no undetermined...

In Africa, the use of mobile terminals is one tools facilitating exchange and transport information. And that has increased number subscribers. This situation influenced by other factors such as theft sale in market many do not meet standards required for use. To achieve adequate management, it vital to firstly state; state art circulation African countries, but also put place control supply chain. These will allow regulators from different countries entire chain better using an...

In Senegal, studies on the family Mugilidae are rare and little data is available their reproductive biology. This study, carried out in MPA of Niamone–Kalounayes (Casamance River estuary, Senegal) aims to enhance our knowledge biology largescale mullet, Parachelon grandisquamis (Valenciennes, 1836), a species highly prized by local population as food source. To better understand its biology, series monthly samplings over twelve (12) months from July 2021 June 2022 was out. Experimental...

The present study evaluated the sex ratio, evolution of gonado-somatic index and stages sexual maturity, condition factor size first maturity Chelon dumerili (Mugilidae) to determine its reproductive parameters. From June 2016 May 2017, a total 360 individuals C. were sampled in Sangomar Marine Protected Area (MPA), In Saloum Delta, Senegal. sex-ratio was significantly favor females (61.67%). Based on monthly gonadal maturation index, period species determined be from March May. varied...

Les connaissances sur les zones de nourricerie et frayère des poissons sont nécessaires pour appuyer orienter politiques gestion ressources halieutiques. Le but cette étude était caractériser la distribution spatiotemporelle oeufs larves petits pélagiques mais aussi l’ensemble du zooplancton en relation avec facteurs environnementaux dans l’AMP d’Abéné, au Sénégal. L'échantillonnage a été réalisé lors quatre campagnes collecte saison froide chaude. Une sonde multi-paramètres utilisée...

Growth and exploitation parameters Ilisha africana were determined from the size frequency for first time in Senegal. The distribution showed average sizes equal to 19.26 ± 1.70 19.75 2.03 cm, respectively estuary at sea. values of allometric rates length-weight relationship were, 2.88 2.93 sea indicating a negative growth this species. Von Bertalanffy are estimated L∞ = 24.7 K 0.33 year-1, t0 -0.53 25.5 0.34 -0.51 with performance index, Φ' 2.30 2.34. calculated total...

It is known that the consumption of seafood has several health benefits for humans. However, accumulation organic pollutants, such as polychlorinated biphenyls (PCBs) and organochlorine pesticides (OCPs), in their flesh could pose public problems. Thus, concentrations PCBs OCPs edible fish species (Mugil bananensis, Sarotherodon melanotheron) from Sine Saloum Estuary located central-western Senegal are investigated order to assess potential risks these contaminants human health. After...

The composition and distribution of the fish community in Marine Protected Area (MPA) Niamone-Kalounayes was studied using monthly experimental fisheries from July 2020 to June 2021.A total 45 species 22 families were captured MPA.September dominates population abundance (27.51%) biomass (23.55%) while specific richness is more important December (27 species), September (26 July, October February (25 each) confluence Tobor bolong (34 species).Cichlidae Mugilidae dominate with 86.92% for a...

Nowadays, the high frequency and synoptic nature of earth observation data are a compulsory tool for global understanding functioning more particularly ocean. Remote sensing were utilized in this study to relate biophysical features ocean catches coastal pelagic fish Exclusive Economic Zone (EEZ) Senegal from 2003 2017. The adopted procedure was, on one hand; multi-criteria analysis parameters which will give an idea availability species exclusive economic zones Senegal. by weighting made it...

Remote sensing data were used in this study to relate the biophysical characteristics of ocean and their relationship with coastal pelagic fish catches Senegalese Exclusive Economic Zone (EEZ) from 2003 2017. Level 3 (4 km) monthly sea surface temperature (SST), chlorophyll (Chl-a) Moderate Resolution Imaging Spectroradiometer Satellite (MODIS-Aqua) statistics fishing used. These parameters associated upwelling index turbulence water allowed characterise availability fish. The average...