Review of historical and new data on Growth parameters and age of Yellowfin tuna, Thunnus albacores

This paper presents review historical and new data on of the growth performance and age of yellowfin tuna.

In this study the information and data of yellowfin tuna was collected from Federal Ministry of Animal
Resources Red Sea fisheries Research Center and Fisheries data Red Sea Fisheries Research Station, 2017-
Sudan) and literature cited.

Result shows that the yellowfin tuna, Thunnus albacares, is an important species in tuna isheries worldwide
is a commercially important species of tuna inhabiting tropical and subtropical seas . In Sudan Red Sea there
are 7 Tuna fish species. Knowledge of life history parameters was essential for understanding the population
dynamics of yellowfin tuna (Schaefer, 1996). Several approaches were often used to determine the age and
growth of the species, growth parameters, growth pattern and age. Determination of age by the analysis of
marks on scales the fork length (cm) and wet weight (kg) of yellowfin the length-weight relationship was
calculated as in Le Cren (1951). Estimated size of yellowfin at first maturity, calculation of the instantaneous
annual mortality rate (Z), natural mortality calculations equation and mortality and exploitation rate.