Seasonal growth of Arabian scad Trachurus indicus from the Gulf of Suez, Red Sea, Egypt. | ||
| Egyptian Journal of Aquatic Biology and Fisheries | ||
| Article 6, Volume 22, Issue 1, January 2018, Pages 65-73 PDF (652.06 K) | ||
| Document Type: Original Article | ||
| DOI: 10.21608/ejabf.2018.7715 | ||
| Authors | ||
| Sahar Mehanna1; Belal Soliman2; Mohamed Sayed3; Rana Abdel Aliem2 | ||
| 11- Fisheries Division, National Institute of Oceanography and Fisheries, Egypt | ||
| 2Faculty of Science, Suez University, Suez, Egypt | ||
| 3Fisheries Division, National Institute of Oceanography and Fisheries, Egypt | ||
| Abstract | ||
| Horse mackerel and scads, family Carangidae, are the most abundant pelagic fishes inhabiting the Gulf of Suez, Red Sea where they constituted about 77% of the total purse-seine catch in the Gulf. Growth of fish is a process that influenced by the environmental conditions especially temperature. Age and seasonal growth of Trachurus indicus were studied from samples collected randomly during the fishing season 2015/2016 from the Attaka port the main landing site in the Gulf of Suez. Otoliths of 1120 specimens were used for age determination and the maximum attained age for this species was three years. The seasonal length-weight relationship was investigated and the growth type was found to be greatly affected by environmental parameters in different seasons. The seasonal von Bertalanffy growth model was applied to estimate the seasonal growth parameters L∞, K and to. It is clear that temperature is a major factor affecting the Arabian scad growth. | ||
| Keywords | ||
| Trachurus indicus; Arabian scad; Growth; Gulf of Suez; Red Sea; Egypt | ||
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