This paper presents a study on assessment of fishery resources based on the sustainable indicators of species adopted in the INCOFISH' project. It primarily focuses on the stocks of round sardinella (Sardinella aurita) and flat sardinella (Sardinella maderensis). Two types of data, constituting data from the Senegalese artisanal fishery landings during the period 1990-2005 and the one collected by the Research Vessel DR FRIDTJOF NANSEN in the Senegalese areas during the period 1995 to 2005 were obtained and utilized. The methodology used in this study was proposed by Froese (2004), which analyzes three simple sustainable indicators in order to obtain meaningful information and diagnoses on the state of exploitation of stocks. The three indicators constitute the percentage of mature fish in catch with 100% as target, the percentage of fish with the optimal size with 100% as target and the percentage of mega-spawners measured as the percentage of old, large fish in the catch. The goal is to catch none (0%) of the size larger than the optimum length plus 10 %. Results showed that the stock of round sardinella seemed to be in a state of overfishing. Juvenile dominated in the catch had not reached the optimal sizes at which the maximal yield could be obtained (growth over-fishing). On the other hand, the stock of flat sardinella showed a state of full exploitation. In summary, the sustainable indicators of fishing can be a more powerful tool compared with traditional stock assessment methods. They can also allow all stakeholders of fishing including the public to fight against overfishing and to have a better understanding of fishery management.