Assessment of growth characteristics of the fish Talal (Rastrelliger kanagurta) in the coastal waters of Hormozgan province

Abdoli, Leila; Akbarzadeh, Arash

Volume 14, Issue 3 (Autmn 2024) J. Aqua. Eco 2024, 14(3): 48-58 | Back to browse issues page

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Abdoli L, Akbarzadeh A. Assessment of growth characteristics of the fish Talal (Rastrelliger kanagurta) in the coastal waters of Hormozgan province. J. Aqua. Eco 2024; 14 (3) :48-58
URL: http://jae.hormozgan.ac.ir/article-1-1121-en.html

Assessment of growth characteristics of the fish Talal (Rastrelliger kanagurta) in the coastal waters of Hormozgan province

Leila Abdoli ^*

, Arash Akbarzadeh

Abstract: (802 Views)

The relationship between length and weight, growth patterns, and condition factors play a crucial role in the assessment and management of fish stocks. The fish Talal, Rastrelliger kanagurta (Cuvier, 1817), is a globally valued bony fish belonging to the tuna family and is one of the most widespread species worldwide. In this study, the parameters related to the length-weight relationship and growth patterns of this species were examined in the regions of Jask, Bandar Lengeh, Bandar Abbas, and Qeshm in the coastal waters of Hormozgan. A total of 172 samples of this species were collected from local fishermen during the winter of 2021 and analyzed. The maximum length and weight recorded for the fish were 25.60 cm and 215.72 g, respectively, at the Qeshm station, while the minimum length and weight were 17.10 cm and 42.64 g at the Bandar Lengeh station. The calculated parameter b for all four stations ranged from 3.12 to 3.71. Based on the 95% confidence intervals and the Pauly formula, the growth type was determined to be positively allometric at the Jask, Bandar Abbas, and Qeshm stations, while isometric growth was observed at the Bandar Lengeh station. The highest mean condition factor was recorded at the Qeshm station with a value of 1.79 ± 0.018, while the lowest was at the Bandar Lengeh station with a value of 1.51 ± 0.021. Comparisons among the stations did not show any significant differences regarding this factor (p > 0.05). The condition factor for this species in the studied areas was greater than one, indicating its good adaptability to environmental conditions.

Keywords: Growth pattern, Length- weight relationship, Condition factor, Rastrelliger kanagurta, Persian Gulf

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Type of Study: Research | Subject: Special
Published: 2024/12/13