Analysis reveals growth patterns and health indicators of Coptodon guineensis, suggesting implications for fisheries management.
Biological characteristics of Coptodon guineensis from the New Calabar River was examined using length frequency distributions (LFDs), length-weight relationships (LWRs), length-length relationships (LLRs), and condition factor. Fish samples were collected with the aid of fishermen. A total of 312 Coptodon guineensis species were recovered, with the total length (TL) and weight (W) ranging from 7.8–21 cm and 6.0–179 grams, respectively. The standard length (SL) ranged from 6.1–16 cm, and the fork length (FL) was 1.5–5.0 cm. The relationships between weight-length revealed a positive allometric growth pattern with a value of "b" 2,398. Condition factor ranged (1.69 - 2.16), with an average of 1.92 indicating good well-being for the species. The LLR's allometric coefficient ' b ' between TL vs. SL, TL vs. FL, and SL vs. FL revealed positive allometry with values close to 1. The results also provided new and updated information on some of the morphometric characters of Coptodon guineensis in the New Calabar River,which will be useful for fisheries management and fish species protection measures in the river.
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Dienye et al. (2025) studied this question.
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