Management of crown-of-thorns sea star (Acanthaster planci L.) outbreaks: Removal success depends on reef topography and timing within the reproduction cycle

  title={Management of crown-of-thorns sea star (Acanthaster planci L.) outbreaks: Removal success depends on reef topography and timing within the reproduction cycle},
  author={Arthur R. Bos and Girley S. Gumanao and Benjamin Mueller and M. M. Saceda-Cardoza},
  journal={Ocean \& Coastal Management},
Size structure and preyed corals of Acanthaster planci (crown-of-thorns sea star) in Lungui Island, Dimataling, Southern Philippines
Outbreaks of Acanthaster planci are one of the major contributors to coral reef degradation, particularly in Indo-Pacific region. Correct assessment of its impact on coral reef ecosystems requires an
Reproductive biology and early life history of the crown-of-thorns starfish
This chapter reviews the unique features of A. planci reproductive biology and early life history that make it predisposed to population fluctuations and discusses factors that regulate gametogenesis, fecundity, spawning, fertilization, larval development, and post-settlement survival.
Crown-of-Thorns Starfish (Acanthaster planci) Population Control Technique and Management Strategies Designed for Developing Country
Acanthaster planci commonly known as crown-of-thorns starfish (COTS) is a natural predator of hermatypic corals, and it controls fast growing corals like species of Acropora. However, when the
Spawning observation of Acanthaster planci in the Gulf of Thailand
In mid-September of 2014, spawning by A. planci was observed on the island of Koh Tao, Gulf of Thailand, providing the first record of natural spawning for this species in the proximity of the South China Sea.
Model to manage and reduce crown-of-thorns starfish outbreaks
A model of intermediate complexity for ecosystem assessments is developed to describe the trophic interactions between juvenile and adult COTS and 2 groups of coral and highlights the effectiveness of invertebrate predation at reducing juvenile COTS numbers and suggests that manual removal is unlikely to be an effective control method except on a small scale.
Spatial and temporal population dynamics of the crown-of-thorns starfish, Acanthaster planci, over a 24-year period along the central west coast of Okinawa Island, Japan
Size-frequency distributions suggest multiple, successive recruitment, as one of the driving factors maintaining A. planci populations in this location, and within the Onna area, the timing of outbreak peaks varied among different locations, showing a northward progression.
Homing behaviour by destructive crown-of-thorns starfish is triggered by local availability of coral prey
In situ time-lapse photography is used to characterize movement of the Pacific crown-of-thorns starfish in the northern and southern Great Barrier Reef in 2015, revealing facultative homing by Acanthaster with the prey-dependent behavioural switch to roaming forays providing a mechanism explaining localized aggregations and diffusion of these population irruptions as prey is locally depleted.
Suppressing the next crown-of-thorns outbreak on the Great Barrier Reef
Crown-of-thorns starfish (COTS) outbreaks are a globally significant driver of coral mortality in the Indo-Pacific and work synergistically with other disturbances. We argue that our improved
Collective action and lime juice fight crown-of-thorns starfish outbreaks in Vanuatu
Among the broad range of large-scale disturbances that affect Indo-Pacific coral reefs, the coral-eating starfish Acanthaster planci (crown-of-thorns starfish, COTS hereafter) is a major cause of


Three lines of evidence to link outbreaks of the crown-of-thorns seastar Acanthaster planci to the release of larval food limitation
Field data and the population model show that river floods and regional differences in phytoplankton availability are strongly related to spatial and temporal patterns in A. planci outbreaks on the Great Barrier Reef.
Acanthaster planci impact on coral communities at permanent transect sites on Bruneian reefs, with a regional overview and a critique on outbreak causes
  • D. Lane
  • Environmental Science
    Journal of the Marine Biological Association of the United Kingdom
  • 2011
The submerged coral reefs of Brunei, little-impacted by human activity and characterized by high live coral cover, have no recorded history in recent decades of the presence of the crown-of-thorns
Evaluation of a crown-of-thorns starfish (Acanthaster planci) control program at Grub Reef (central Great Barrier Reef)
Although starfish abundance had declined significantly after the control efforts, biological surveys indicated that a relatively large number of starfish remained; these results have important implications for the implementation of future control programs and highlight the need to undertake before and after biological surveys to assess the effectiveness of the controls.
Crown-of-thorns outbreak at the Tubbataha reefs UNESCO World Heritage Site.
  • A. Bos
  • Environmental Science
  • 2010
The remoteness and pristine conditions of the Tubbataha reefs seem to preclude overfishing of predators as an explanation for this crown-of-thorns outbreak, and immediate action is needed to avoid further damage which could jeopardize the ecological functioning of this World Heritage Site.
Population dynamics, reproduction and growth of the Indo-Pacific horned sea star, Protoreaster nodosus (Echinodermata; Asteroidea)
Density and biomass did not change significantly during reproduction, but sea stars avoided intertidal habitats, and potential effects of ornamental collection on the sea star populations are discussed.
Persistent and Expanding Population Outbreaks of the Corallivorous Starfish Acanthaster planci in the Northwestern Indian Ocean: Are They Really a Consequence of Unsustainable Starfish Predator Removal through Overfishing in Coral Reefs, or a Response to a Changing Environment?
The reason for A. planci population outbreaks could not have been due to overfishing of predator species, but is most likely to have been caused by the frequent input of nutrients, due to frequent upwelling events in the northwestern Indian Ocean, leading to planktonic blooms which thus enhance A.Planci recruitment.
Acanthaster planci infestations of reefs and coral assemblages in Japan: a retrospective analysis of control efforts
Reef-building corals have been extensively degraded by Acanthaster planci infestations which have continued to spread throughout the Ryukyu archipelago since 1969. Intensive control efforts were
Changes in coral assemblages during an outbreak of Acanthaster planci at Lizard Island, northern Great Barrier Reef (1995–1999)
Changes in area cover, species diversity and taxonomic composition of corals during an outbreak of A. planci at Lizard Island, in the northern Great Barrier Reef, Australia are reported on.
Ontogenetic habitat shift, population growth, and burrowing behavior of the Indo-Pacific beach star, Archaster typicus (Echinodermata; Asteroidea)
This is one of the first studies to document an ontogenetic habitat shift for sea stars and provides new biological information as a basis for management of harvested A. typicus populations.