Assessing and managing charismatic marine megafauna in Palau: Bumphead parrotfish (<scp><i>Bolbometopon muricatum</i></scp>) and Napoleon wrasse (<scp><i>Cheilinus undulatus</i></scp>)

Friedlander, Alan M.; Bukurrou, Asap; Filous, Alexander; Karanassos, Christina Muller; Koike, Haruko; Koshiba, Shirley; Mereb, Geory; Nestor, Victor; Oleson, Kirsten L.L.; Olsudong, Dawnette; Oruetamor, Jay; Otto, E.; Polloi, Kevin; Rengiil, Geraldine; Tellei, Elsei; Golbuu, Yimnang

doi:10.1002/aqc.3929

Cited by 4 publications

(1 citation statement)

References 57 publications

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“…3). In response, the overharvesting of B. muricatum is widely viewed as a key conservation issue, with a growing push for better management strategies to conserve the individuals that remain (Donaldson and Dulvy 2004;Comeros-Raynal et al 2012;Hamilton et al 2016Hamilton et al , 2019Friedlander et al 2023). The contrast between a 'conservation priority' (B. muricatum) and a 'pest' (CoTS), that both deliver, fundamentally, a similar ecosystem function (in terms of coral mortality), is remarkable.…”

Section: How Do We Currently Manage Reef Functions?mentioning

confidence: 99%

Studying functions on coral reefs: past perspectives, current conundrums, and future potential

Bellwood,

Brandl,

McWilliam

et al. 2024

Coral Reefs

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Function-based studies have opened a new chapter in our understanding of coral reefs. Unfortunately, we are opening this chapter as the world’s reefs rapidly transform. In this context, one of the most important roles of function-based studies is to inform coral reef conservation. At this critical juncture, we have a chance to reflect on where we have come from, and where we are going, in coral reef functional ecology, with specific consideration of what this means for our approaches to conserving reefs. As focal examples, we examine the role of corals on reefs, and the practice of culling crown-of-thorns starfish, from a functional perspective. We also consider how the papers in this special issue build on our current understanding. Ultimately, we highlight how robust scientific investigation, based on an understanding of ecosystem functions, will be key in helping us navigate reefs through the current coral reef crisis.

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Section: How Do We Currently Manage Reef Functions?mentioning

confidence: 99%

Studying functions on coral reefs: past perspectives, current conundrums, and future potential

Bellwood,

Brandl,

McWilliam

et al. 2024

Coral Reefs

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An initial fish and megafauna biomass assessment from Tanjung Bira, a remote unprotected marine area

Sebastian,

Gotama,

Aulia

et al. 2024

Regional Studies in Marine Science

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Excluding Large Grazers Dramatically Improves Survival of Outplanted Juvenile Corals

van der Steeg,

Humanes,

Bythell

et al. 2024

Preprint

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High mortality rates of juvenile corals hinder both the natural recovery of populations and the successful implementation of restoration efforts. Grazing is a significant cause of juvenile coral mortality, and grazer exclusion devices have been shown to increase juvenile coral survivorship. However, most experiments have used cages that typically alter water flow and light conditions and exclude grazers of most sizes, making it difficult to quantify the effects of large grazers alone. Here, we test whether deterring large grazers can increase the survival and growth of six-month-old Acropora digitifera juveniles outplanted to a shallow reef crest, using arrangements of two or four long or short masonry nails that selectively exclude larger grazers (e.g., parrotfish) while minimising abiotic changes. By the end of our study, colonies with deterrents had significantly larger planar area (almost tenfold for the most effective treatment), more branches, greater height, and enhanced survival than those without deterrents. A critical period is the first week after outplanting when colonies with deterrents had significantly less tissue loss from grazing than those without. Less tissue loss in the first week was associated with significantly higher survival over the following 14 months, with an almost threefold improvement for the most effective treatment. For heavily grazed systems, our study highlights the importance of incorporating grazing deterrents into outplant devices to counteract the negative impact of large grazers on outplanted juvenile coral survival and boost restoration success.

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Assessing and managing charismatic marine megafauna in Palau: Bumphead parrotfish (Bolbometopon muricatum) and Napoleon wrasse (Cheilinus undulatus)

Cited by 4 publications

References 57 publications

Studying functions on coral reefs: past perspectives, current conundrums, and future potential

Studying functions on coral reefs: past perspectives, current conundrums, and future potential

An initial fish and megafauna biomass assessment from Tanjung Bira, a remote unprotected marine area

Excluding Large Grazers Dramatically Improves Survival of Outplanted Juvenile Corals

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