2022
DOI: 10.1016/j.marpol.2021.104953
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A holistic approach to manta ray conservation in the Papuan Bird’s Head Seascape: Resounding success, ongoing challenges

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Cited by 14 publications
(17 citation statements)
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“…Additional information is now needed to guide management better to regulate the rapidly expanding marine tourism in the park and prevent undue pressure on the manta rays in this critical habitat ( e.g . Division of Boating & Ocean Recreation, 2016 ; Germanov et al, 2019a ; Kasmidi & Gunadharma, 2017 ; Setyawan et al, 2022 ; Venables et al, 2016 ). To combat the rising pressure from tourism, in September 2019, the Komodo NP put limitations on the number of boats and divers/snorkelers allowed in the water simultaneously at KM.…”
Section: Discussionmentioning
confidence: 99%
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“…Additional information is now needed to guide management better to regulate the rapidly expanding marine tourism in the park and prevent undue pressure on the manta rays in this critical habitat ( e.g . Division of Boating & Ocean Recreation, 2016 ; Germanov et al, 2019a ; Kasmidi & Gunadharma, 2017 ; Setyawan et al, 2022 ; Venables et al, 2016 ). To combat the rising pressure from tourism, in September 2019, the Komodo NP put limitations on the number of boats and divers/snorkelers allowed in the water simultaneously at KM.…”
Section: Discussionmentioning
confidence: 99%
“…Following a sequence of manta ray conservation milestones ( Setyawan et al, 2022 ), including Indonesian regional shark and manta fishing bans in Raja Ampat, West Papua ( Raja Ampat Local Government, 2012 ) and West Manggarai, Flores and Komodo NP ( West Manggarai Local Government, 2013 ), in 2014, both manta ray species were formally protected throughout the entire exclusive economic zone of Indonesia (an area of over 6 million km 2 ; Dharmadi, Fahmi & Satria, 2015 ; Ministry of Marine Affairs & Fisheries, 2014 ). The nation-wide legislative protection of manta rays was adopted after these species were listed on the aforementioned conservation conventions, but the Indonesian government was also incentivized to protect the valuable manta ray tourism industry in the country, estimated to be worth over US$10.6 million per year ( Mustika, Ichsan & Booth, 2020 ; O’Malley, Lee-Brooks & Medd, 2013 ).…”
Section: Introductionmentioning
confidence: 99%
“…This study was performed in the Raja Ampat Archipelago, West Papua, Eastern Indonesia (Figure 2). This region covers ~4.5 million ha and is home to large populations of both M. alfredi and oceanic manta rays (M. birostris) [36,37] that have been fully protected in this region since 2012 [38]. The surveys were conducted in five areas of Raja Ampat: Wayag lagoon, Yefnabi Kecil fringing reef, the Fam islands, Hol Gam bay, and the patch reefs east of Arborek island (Dampier Strait) (Figure 2).…”
Section: Study Areamentioning
confidence: 99%
“…Nonetheless, there are anecdotal reports of sporadic targeting of manta ray aggregations in the early 2000s by shark fishers in northern Raja Ampat (Varkey et al, 2010). Local fishers also reported that manta rays were frequently observed as bycatch when outsider fishing boats using large drift nets occasionally operated in Raja Ampat in the 1990s and early 2000s (Setyawan et al, 2022a). Importantly, Raja Ampat's manta rays have been protected since 2007, when the Raja Ampat local government and local stakeholders started to implement a series of conservation measures in the region that began with the implementation of a network of MPAs, progressed to the declaration of all of Raja Ampat's regency waters as Southeast Asia's first shark and ray sanctuary in 2012, and culminated with the Indonesian government granting full national-level protection to both species of manta ray in 2014 (Setyawan et al, 2022a).…”
Section: Introductionmentioning
confidence: 99%
“…Similarly, Rohner et al (2013; reported dramatic declines in M. alfredi sightings in southern Mozambique (with a 98% decrease between 2003 and 2016), while numerous authors have noted that the life history characteristics of manta rays (including late maturation and extremely low fecundity) make them highly vulnerable to population decline (Ward-Paige et al, 2013;Dulvy et al, 2014;Croll et al, 2015). While anecdotal evidence and testimonies by local communities and marine tourism operators suggest that Raja Ampat's M. alfredi population has been spared such a fate (Setyawan et al, 2022a), the aim of this paper is to examine manta ray population trends in Raja Ampat in a quantitative manner. Here, we used open population mark-recapture models based on photo-ID sighting data of M. alfredi sourced from citizen science and active surveys by the authors to explicitly examine the potential impacts of manta ray conservation and management efforts in the extensive Raja Ampat MPA network.…”
Section: Introductionmentioning
confidence: 99%