Home range of newborn blacktip reef sharks (Carcharhinus melanopterus), as estimated using mark-recapture and acoustic telemetry

Type Article
Date 2020-10
Language English
Author(s) Bouyoucos Ian A.1, 2, Romain Martin2, Azoulai Lorine2, Eustache Kim2, 3, Mourier Johann2, 4, 5, Rummer Jodie L.1, Planes Serge2, 5
Affiliation(s) 1 : Australian Research Council Centre of Excellence for Coral Reef Studies, James Cook University, Townsville, QLD, 4811, Australia
2 : PSL Research University, EPHE-UPVD-CNRS, USR 3278 CRIOBE, Université de Perpignan, 58 Avenue Paul Alduy, 66860, Perpignan Cedex, France
3 : Institute for Biodiversity and Ecosystem Dynamics, University of Amsterdam, 1090 GE, Amsterdam, The Netherlands
4 : UMR MARBEC (IRD, Ifremer, University of Montpellier, CNRS), 34000, Sète, France
5 : Laboratoire D’Excellence “CORAIL,” EPHE, PSL Research University, UPVD, CNRS, USR 3278 CRIOBE, Papetoai, Moorea, French Polynesia
Source Coral Reefs (0722-4028) (Springer Science and Business Media LLC), 2020-10 , Vol. 39 , N. 5 , P. 1209-1214
DOI 10.1007/s00338-020-01965-z
WOS© Times Cited 4
Keyword(s) Elasmobranch, French Polynesia, Kernel utilization density, Marine protected area, Minimum convex polygon, Shark nursery area
Abstract

Sharks play important functional roles in coral reef ecosystems. Studying reef shark populations’ spatial ecology also contributes important data for effective conservation planning. The purpose of this study was to define the home range of neonatal blacktip reef sharks (Carcharhinus melanopterus) around Moorea, French Polynesia, and compare estimates using both mark-recapture surveys and active acoustic telemetry. Mark-recapture surveys produced a minimum convex polygon (MCP) of 0.07 km2 that was significantly larger than the MCP derived from acoustic telemetry (0.02 km2). Acoustic telemetry produced 50 and 95% kernel utilization densities that were smaller (0.02 km2) and larger (0.14 km2) than home range estimates from mark-recapture surveys, respectively. Home range estimates from this study are the smallest that have been documented for neonatal blacktip reef sharks, possibly owing to the study sites’ proximity to deep channels. Mark-recapture and active acoustic telemetry are complementary approaches worthy of consideration where passive telemetry is impractical

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Bouyoucos Ian A., Romain Martin, Azoulai Lorine, Eustache Kim, Mourier Johann, Rummer Jodie L., Planes Serge (2020). Home range of newborn blacktip reef sharks (Carcharhinus melanopterus), as estimated using mark-recapture and acoustic telemetry. Coral Reefs, 39(5), 1209-1214. Publisher's official version : https://doi.org/10.1007/s00338-020-01965-z , Open Access version : https://archimer.ifremer.fr/doc/00634/74574/