Tag attachment success can be temperature dependent: a case study of the chub mackerel Scomber japonicus

Table 1 Results of Cox regression analysis showing effects of the tagging components on survival of the chub mackerel in the experiment under warm conditions

Tagging component	Parameter estimates		SE	df	χ ²	P
Tag presence (Implantation, External, Untagged)	Implantation	0.745	0.511	2	11.536	0.003*
Tag presence (Implantation, External, Untagged)	External	0.280	0.666	2	11.536	0.003*
Surgical operation (ventrotomy, pitting, non-surgery)	Ventrotomy	−0.010	0.950	2	0.960	0.619
Surgical operation (ventrotomy, pitting, non-surgery)	Pitting	0.252	0.507	2	0.960	0.619
Duration of tag deployments (s)		−0.006	0.007	1	0.784	0.376
Duration of anaesthesia (s)		0.002	0.002	1	1.015	0.314
Body mass (g)		−0.005	0.003	1	4.004	0.045*

ISSN: 2050-3385