Cuttlebone morphometrics and sex identification of Sepia bertheloti (d’Orbigny, 1835) from the central-east Atlantic

Table 1 Parameters of the morphometric relationships established between the dorsal mantle length (DML) and cuttlebone measurements in male and female Sepia bertheloti

Variable	Sex	a	a standard error	b	b standard error	R	F
FL	F	0.139	0.020	0.933	0.033	0.968	1778.5
FL	M	0.255	0.050	0.796	0.045	0.939	1315.1
FW	F	0.476	0.059	0.939	0.040	0.954	2538.1
FW	M	3.321	0.186	0.799	0.024	0.931	1063.3
CW	F	0.211	0.036	1.147	0.054	0.946	2452.1
CW	M	3.814	0.179	0.794	0.020	0.949	1500.2
ECW	F	0.941	0.126	1.094	0.067	0.913	1266.4
ECW	M	0.402	0.280	1.182	0.030	0.951	1543.1
CL	F	0.915	0.028	0.148	0.018	0.977	1056.9
CL	M	0.192	0.036	0.856	0.043	0.951	3398.6
CL1	F	0.957	0.082	0.119	0.043	0.880	436.9
CL1	M	0.181	0.061	0.863	0.075	0.888	530.9
CH	F	0.212	0.044	1.614	0.098	0.914	2272.1
CH	M	0.305	0.025	1.378	0.036	0.949	1472.8
TW	F	0.591	0.094	2.001	0.075	0.972	1716.8
TW	M	0.326	0.049	2.327	0.176	0.939	4191.5

Parameters of the potential equations between morphometric variables of the cuttlebone and the dorsal mantle Length (DML) of Sepia bertheloti females

ISSN: 1438-3888