International Journal of Fisheries and Aquatic Studies
2015, Vol. 3, Issue 1, Part D
Age, growth and mortality of Rhabdosargus haffara in Lake Timsah, (Suez Canal, Egypt)Author(s):
This study was carried out from May 2013 to April 2014 in the Lake Timsah, Egypt. A total of 400 specimens were collected by monthly sampling. The age of Rhabdosargus haffara was estimated by examining scales and it was found out that the maximum age was IV years. The main total length and total weight values were calculated as 16.7± 2.21 cm to 91.31±20.15 g. respectively and the calculated length-weight relationship was W = 0.01756 L3.101. The von Bertalanffy growth parameters were L∞ = 27.4 cm. K = 0.1125 year-1 and to = -1.34298 year. The instantaneous rate of total mortality (Z) was 1.3375, the natural mortality (M) was 0.40259 and the fishing mortality (F) was estimated to be 0.9349. The exploitation rate (E) was calculated as about 0.70 using value of M and F. Therefore, the population of Rhabdosargus haffara off Lake Timsah was under the threat of over fishing.Pages: 239-243 | 817 Views 6 DownloadsDownload Full Article:
How to cite this article:
MA El-Drawany. Age, growth and mortality of Rhabdosargus haffara in Lake Timsah, (Suez Canal, Egypt). International Journal of Fisheries and Aquatic Studies. 2015; 3(1): 239-243.