FN Archimer Export Format PT J TI Novel use of pop‑up satellite archival telemetry in sawsharks: insights into the movement of the common sawshark Pristiophorus cirratus (Pristiophoridae) BT AF Burke, Patrick J MOURIER, Johann Gaston, Troy F Williamson, Jane E AS 1:1;2:2;3:3;4:1; FF 1:;2:;3:;4:; C1 Macquarie University, Australia MARBEC, University of Montpellier, CNRS, IFREMER, IRD, France School of Environmental and Life Sciences, University of Newcastle, Australia C2 UNIV MACQUARIE, AUSTRALIA IRD, FRANCE UNIV NEWCASTLE, AUSTRALIA UM MARBEC IN WOS Cotutelle UMR DOAJ copubli-int-hors-europe IF 3.155 TC 3 UR https://archimer.ifremer.fr/doc/00632/74399/74101.pdf LA English DT Article DE ;Elasmobranch;Satellite telemetry;Diel vertical migration;Tagging;Pristiophoridae;Australia;Movement AB Background Understanding movement patterns of a species is vital for optimising conservation and management strategies. This information is often difficult to obtain in the marine realm for species that regularly occur at depth. The common sawshark (Pristiophorus cirratus) is a small, benthic associated elasmobranch species that occurs from shallow to deep-sea environments. No information is known regarding its movement ecology. Despite this, P. cirrata are still regularly landed as nontargeted catch in the south eastern Australian trawl fisheries. Three individuals were tagged with pop-up satellite archival tags (PSATs) off the coast of Tasmania, Australia, to test the viability of satellite tagging on these small elasmobranchs and to provide novel insights into their movement. Results Tags were successfully retained for up to three weeks, but movement results differed on an individual basis. All three individuals displayed a post-release response to tagging and limited vertical movement was observed for up to 5–7 days post-tagging. Temperature loggers on the tags suggest the animals were not stationary but moved horizontally during this time, presumably in a flight response. After this response, continuous wavelet transformations identified diel vertical movements in one individual at cyclical intervals of 12- and 24-hour periods, however, two others did not display as clear a pattern. Temperature was not significantly correlated with movement in the study period. The deepest depths recorded during the deployments for all individuals was approximately 120 meters and the shallowest was 5 meters. Conclusions This study demonstrates that sawsharks can be successfully tagged by pop-up satellite archival tags. The data presented here show that sawsharks regularly move both horizontally and vertically in the water column, which was an unexpected result for this small benthic species. Additional research aimed at resolving the trophic ecology will help identify the drivers of these movements and help to better define the ecological, behavioural and physiological roles of these sharks in their ecosystems. These data describe a substantial ability to move in the common sawshark that was previously unknown and provides the first account of movement ecology on the family of sawsharks: Pristiophoridae. PY 2020 PD NOV SO Animal Biotelemetry SN 2050-3385 PU BMC VL 8 IS 1 UT 000696406900001 DI 10.1186/s40317-020-00222-y ID 74399 ER EF