Observations on some morphometric characters of the webfoot octopus, Amphioctopus membranaceus (Quoy and Gaimard, 1832) from the Suez Gulf, Red Sea, Egypt | ||||
Egyptian Journal of Aquatic Biology and Fisheries | ||||
Article 8, Volume 25, Issue 2, March and April 2021, Page 103-115 PDF (676.93 K) | ||||
Document Type: Original Article | ||||
DOI: 10.21608/ejabf.2021.158705 | ||||
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Authors | ||||
Ayman S. Ahmed; Azza A. El-Ganainy; Mohamed F. Osman; Magdy T. Khalil | ||||
Abstract | ||||
Some morphometric characters of webfoot octopus, Amphioctopus membranaceus were subjected to study in the Suez Gulf in the Northern Red Sea. The present results showed that the length-weight relationship of mantle length (ML) and total weight (TW) of A. membranaceus is negative allometric. Findings were obtained using the equation of y= 0.7391x2.4222 with the correlation coefficient of r2= 0.843 for males, and y= 0.85x2.3348 with the correlation coefficient of r2= 0.9031 for females. The length-length relationships of ML and the different body measurements of A. membranaceus reported a negative allometric (b<1) relation. While, the relations of ML and total length (TL), long arm length (LAL), and short arm length (SAL) recorded positive allometric growth (b>1) for both males and females. Remarkedly, the correlation coefficient (r2) showed a good fitted data for all relationships. | ||||
Keywords | ||||
Amphioctopus membranaceus; morphometric characters; length-weight relationship; Suez Gulf | ||||
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