Development and validation of a drill attachment for faster and safer deployments of fin-mounted geolocators in large-bodied sharks

Table 1 Metadata of tagged sharks and time intervals for geolocator deployments

Shark-ID #	Species	Sex	sTL [cm]	Gear	Handling duration [seconds]	Tagging duration [seconds]	Tagging date [dd-mm-yyyy]	Days at liberty
1^‡	S. mokarran	F	223	LL	105	68	01.02.2022	114
2^‡	S. mokarran	M	227	LL	93	83	04.02.2022	78
3	S. mokarran	M	277	LL	79	71	04.04.2022	n.d
4^‡	S. lewini	F	200	LL	81	74	04.04.2022	51
5	S. lewini	F	284	LL	108	85	04.04.2022	93
6	S. mokarran	M	337	PBF	630	NA	11.04.2022	178*

In column 1 ‡ indicates immature sharks. LL stands for sharks that were caught using bottom set-longlines and PBS for the great hammerhead that was caught using a polyball-float fishing technique. For sharks caught using longlines, the time periods in the column “handling duration” show the time in seconds from when the shark was first brought onto the boat until full release, whereas it shows the time from bite-to-release for the shark that was caught using a polyball-float fishing technique (shark 6). The sex of each shark in column 3 is abbreviated as F for female and M for male sharks. The days at liberty were calculated as the difference in days between the tagging date and the date of the last location transmission with the last day being included in the calculation. Shark 3 did not report any data post-release. *The geolocator of shark 6 was still active by the time this manuscript was accepted with shark 6 generating location data daily. Units and data formats are displayed in in italic font within [].

ISSN: 2050-3385