Morphological features and morphometric structure of the Sepia elegans along the coast of Sousa, eastern Libya
DOI:
https://doi.org/10.37375/susj.v16i1.4097Keywords:
Sepia elegans, Morphometric, measurements, Sousa, Marine biology, Length-weight relationship, Allometric growthAbstract
The aim of this study was to determine the morphological characteristics of female and male S. elegans in the Sousa region, located in eastern Libya. A total of 30 specimens were randomly collected, and 13 morphometric measurements were taken for each specimen. The mean values of these morphological measurements were determined. The maximum total length was 15.10 cm, and the maximum weight was 275 g, while the minimum total length and weight were 11.50 cm and 161 g, respectively. No statistically significant differences were observed between males and females. High R² values, ranging from 0.790 to 0.799, indicated that the results of linear, logarithmic, and exponential regressions for the WW–DML relationship were very good. The logarithmic regression was the most accurate, achieving the highest R² values among the three regressions for both males and females. The regression constants “a” and “b” were statistically significant in most cases. The “b” value for the power regression was 1.50, which is less than 3, indicating a negative allometric growth pattern. Additionally, the condition of the squid improved with growth, as shown by the regression models (logarithmic, linear, and power) for CF with DML, which had high coefficients of determination (R²). This indicates that the WW/DML ratio increased with cuttlefish growth. Pairwise correlations between morphometric measurements were generally good; some were statistically significant, while others were not.
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