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An estimate of the number of white sharks Carcharodon carcharias interacting with ecotourism in G uadalupe I sland
Author(s) -
BecerrilGarcía Edgar E.,
HoyosPadilla Edgar M.,
SantanaMorales Omar,
GutiérrezOrtiz Miguel A.,
AyalaBocos Arturo,
GalvánMagaña Felipe
Publication year - 2020
Publication title -
journal of fish biology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.672
H-Index - 115
eISSN - 1095-8649
pISSN - 0022-1112
DOI - 10.1111/jfb.14540
Subject(s) - carcharias , white (mutation) , biology , threatened species , fishery , ecotourism , endangered species , ecology , geography , habitat , tourism , archaeology , biochemistry , juvenile , gene
The aim of the present study is to provide an estimate of the number of white sharks Carcharodon carcharias that seasonally interact with ecotourism boats in Guadalupe Island using Schnabel's mark–recapture method and 6316 records of white sharks during 2012–2014. The results of the estimation highlight an abundance of 78 white sharks 95% C.I. (62.1, 105.6) interacting with ecotourism. The regulations regarding the number of tourists, boats and the monitoring of white sharks should be assessed to improve management decisions regarding the conservation and sustainable use of this threatened species.