Growth, Relationship of Length-Weight, and Condition Factor of Striped Eel Catfish (Plotosus lineatus) at the Grow-Out Stage in the Floating Net Cages

Asriyana, Asriyana; Halili, Halili; Balubi, Abdul; Asrari, Asnawati

doi:10.21608/ejabf.2025.364450.5461

Growth, Relationship of Length-Weight, and Condition Factor of Striped Eel Catfish (Plotosus lineatus) at the Grow-Out Stage in the Floating Net Cages

Document Type : Original Article

Authors

¹ Universitas Halu Oleo

² Department of Aquatic Resources Management, Faculty of Fisheries and Marine Science, Halu Oleo University

³ Department of Aquaculture, Faculty of Fisheries and Marine Sciences, Halu Oleo University

⁴ Research Institute for Brackishwater Aquaculture and Fisheries Extension Maros South Sulawesi

10.21608/ejabf.2025.364450.5461

Abstract

Growth patern, relationships of length-weight, and condition factors are crucial information in fisheries management, aiding in biomass determination by converting length to weight and comparing species growth across seasons and locations. The purpose of this study was to examine growth, determine the relationship of length-weight, and assess condition factors for the striped eel catfish reared in floating net cage environments. The study spanned four months, from July to November 2023. A total of 450 juvenile stage fish were stocked in floating net cages, with stocking densities of 50 and 100ind./ 2m³, raised in three separate rearing containers. At the end of the experiment, the fish exhibited total lengths and weights ranging from 94.00- 180.00mm and 5.40- 19.20g (50 individuals/2m³), and 90.00- 170.00mm and 5.30- 31.70g (100 individuals/2m³). Across all rearing conditions, the examination of the length-weight relationship revealed a negative allometric development tendency for the striped eel catfish. The equation model for the relationship of total length (TL) and weight (W) in the 50ind./ 2m³ medium is W= 0.10 TL^1.86(r=0.84; R²=0.71), while in the 100ind./ 2m³ medium, it is W= 0.01 TL^2.68 (r=0.94; R²=0.89). Condition factors for the striped eel catfish raised at a density of 50ind./ 2m³ indicate better conditions than those raised at a density of 100ind./ 2m³. The study suggests that the striped eel catfish kept in a controlled environment at low density show superior conditions.

Keywords