Publication: Age and growth estimates from three hard parts of the spotted catfish, Arius maculatus (Actinopterygii: Siluriformes: Ariidae), in Songkhla Lake, Thailand’s largest natural lake
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Issued Date
2021-01-01
Resource Type
ISSN
17341515
01371592
01371592
Other identifier(s)
2-s2.0-85123125020
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Mahidol University
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SCOPUS
Bibliographic Citation
Acta Ichthyologica et Piscatoria. Vol.51, No.4 (2021), 371-378
Suggested Citation
Penprapa Phaeviset, Pisit Phomikong, Piyathap Avakul, Sontaya Koolkalaya, Wachira Kwangkhang, Chaiwut Grudpan, Tuantong Jutagate Age and growth estimates from three hard parts of the spotted catfish, Arius maculatus (Actinopterygii: Siluriformes: Ariidae), in Songkhla Lake, Thailand’s largest natural lake. Acta Ichthyologica et Piscatoria. Vol.51, No.4 (2021), 371-378. doi:10.3897/aiep.51.74082 Retrieved from: https://repository.li.mahidol.ac.th/handle/123456789/75754
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Title
Age and growth estimates from three hard parts of the spotted catfish, Arius maculatus (Actinopterygii: Siluriformes: Ariidae), in Songkhla Lake, Thailand’s largest natural lake
Abstract
The spotted catfish, Arius maculatus (Thunberg, 1792), is a euryhaline fish that is economically important in the Indo-West Pacific. Population dynamics studies and stock assessments of this species have focused on marine stocks, but not those from fresh water. In this study, the age and growth of A. maculatus were, therefore, investigated for the inland stock in Songkhla Lake, Thailand. A total of 213 individuals ranging between 35 and 238 mm TL were used. The length–weight relation indicated positive allometry of this population. Three hard parts (otolith, dorsal-and pectoral-fin spines) were used for aging. The marginal increment ratio confirmed that an annulus was deposited once a year in all three hard parts. All of the samples were aged between 0+ and 6+ years. Verification of age estimates from three readers showed that the otolith was the most suitable part for age estimation. Three growth models (von Bertalanffy, Gompertz, and logistic) were applied in the study. The von Bertalanffy model best described the growth of this fish in Songkhla Lake. The obtained asymptotic length was 290.87 mm TL and the relative growth rate parameter was 0.166 year–1. Our results will be applied as inputs for fish stock assessment models. The obtained growth parameters also can serve as a reference for A. maculatus stocks elsewhere.