Biometric Characteristics of the Siboga Squid Uroteuthis (photololigo) Sibogae (Adam, 1954) from the South East Coast of India

Objectives: To study the various linear and non-linear relationships among variables of siboga squid Uroteuthis (photololigo) sibogae (Adam, 1954) from South East Coast India August to November 2021. Methods: Samples were measured nearest value 1.0mm weight was 1gm. Findings: Females had a mean DML 120 mm, whereas males 129 mm. The total pooled sexes 38.9 gm with female being 35.9 male 41.8 gm. Regarding mantle weight, 20.5gm 24.7 sex 22.6 nonlinear relationship between length females calculated as 0.0014x2.1119, while 0.0009x2.1998 0.0009x2.2075. Whereas, length-Mantle 0.0015x1.9857, 0.0004x2.2663 respectively, one 0.0006x2.1721. - female, male, shows negative allometric (b<3) indicating less cuboidal growth. Similarly, morphometric also showed growth (b<1). P-value b high significance (P<0.05), which rejects null hypothesis. Novelty: on length-weight species understand difference in patterns females. Keywords: sibogae; lengthweight relationship; study; allometry growth; sexual dimorphism