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230501

Age and Growth Based on the Scale Readings of the Two Carangid Species Carangoides bajad and Caranx melampygus from Shalateen Fishing Area, Red Sea, Egypt

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Last updated: 01 Jan 2025

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Abstract

The study of the age and growth of fish is fundamental for understanding the general biology of the species and in particular its population dynamics. The age and growth of two Carangid species Carangoides bajad and Caranx melampygus from the Egyptian Red Sea, Shalateen region (Elba National Park) were studied based on the scale readings using a non-linear back-calculation method.  A total of 1103 specimens (145–515 mm in SL) of C. bajad and 795 specimens (145–631 mm in SL) of C. melampygus were aged and their maximum life span was 8 and 12 years, respectively. The most dominant age group in the catch was age groups II (45.36%) for C. bajad, and age group 0for C. melampygus (21.6%). The von Bertalanffy growth parameters were L∞ = 576.88 and 701.08 mm for C. bajad and C. melampygus respectively, while K = 0.24 and 0.17 year-1 for the two species respectively. It was found that C. melampygus was heavier and characterized by a higher growth rate than C. bajad for the same length and age. These data are the inputs of the analytical models used to achieve the wise management of this potential fishery.

DOI

10.21608/ejabf.2022.230501

Keywords

Red Sea, Age, Growth, Scales, Carangoides bajad, Caranx melampygus

Authors

First Name

Ashraf

Last Name

S. Mohammad et al.

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Volume

26

Article Issue

2

Related Issue

31841

Issue Date

2022-03-01

Receive Date

2022-04-12

Publish Date

2022-03-01

Page Start

399

Page End

411

Print ISSN

1110-6131

Online ISSN

2536-9814

Link

https://ejabf.journals.ekb.eg/article_230501.html

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https://ejabf.journals.ekb.eg/service?article_code=230501

Order

26

Type

Original Article

Type Code

103

Publication Type

Journal

Publication Title

Egyptian Journal of Aquatic Biology and Fisheries

Publication Link

https://ejabf.journals.ekb.eg/

MainTitle

Age and Growth Based on the Scale Readings of the Two Carangid Species Carangoides bajad and Caranx melampygus from Shalateen Fishing Area, Red Sea, Egypt

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Article

Created At

22 Jan 2023