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27 Results Found

  • Article
  • Open Access
31 Citations
11,687 Views
11 Pages

Modelling Growth of Juvenile Crown-of-Thorns Starfish on the Northern Great Barrier Reef

  • Jennifer Wilmes,
  • Samuel Matthews,
  • Daniel Schultz,
  • Vanessa Messmer,
  • Andrew Hoey and
  • Morgan Pratchett

29 December 2016

The corallivorous crown-of-thorns starfish (Acanthaster spp.) is a major cause of coral mortality on Indo-Pacific reefs. Despite considerable research into the biology of crown-of-thorns starfish, our understanding of the early post-settlement life s...

  • Article
  • Open Access
1 Citations
1,507 Views
16 Pages

11 October 2025

Population irruptions of crown-of-thorns starfish (CoTS; Acanthaster spp.) represent a perennial threat to Indo-Pacific coral reefs, often causing extensive coral loss and contributing to reef degradation. Therefore, extensive efforts are being made...

  • Article
  • Open Access
4 Citations
3,027 Views
13 Pages

Coral ingestion by crown-of-thorns starfish (COTS) is an important cause of coral reef degradation, although the impacts of COTS feeding on coral-associated microbial communities are not well understood. Therefore, in this study, we analyzed the cora...

  • Article
  • Open Access
3 Citations
3,838 Views
18 Pages

5 January 2024

Outbreaks of crown-of-thorn starfish (COTS) have caused dramatic declines in reefs through predation on corals, but the post-bloom effects of COTS may still potentially threaten the environment and living organisms due to massive organic decompositio...

  • Article
  • Open Access
1,264 Views
18 Pages

Starvation Influences the Microbiota in the Stomach of the Corallivorous Crown-of-Thorns Starfish

  • Ying Zhang,
  • Fuxiang Lai,
  • Litong Yang,
  • Liling Dai,
  • Nan Su,
  • Jianxing Hu,
  • Huizhen Chen,
  • Qian Gao,
  • Fanyu Zheng and
  • Chang Chen

21 August 2025

The crown-of-thorns starfish (CoTS, Acanthaster spp.), is responsible for a considerable amount of coral loss in the tropical Indo-Pacific region. After decimating coral populations through predation, it is expected that CoTS will face food scarcity...

  • Article
  • Open Access
34 Citations
6,948 Views
11 Pages

9 December 2016

Like most coral reef organisms, crown-of-thorns starfish (Acanthaster spp.) are expected to be highly vulnerable to predation as they transition from a planktonic larval phase to settling among reef habitats. Accordingly, crown-of-thorns starfish mig...

  • Article
  • Open Access
14 Citations
7,203 Views
18 Pages

4 March 2017

Outbreaks of crown-of-thorns starfish are often attributed to step-changes in larval survivorship following anomalous increases in nutrients and food availability. However, larval growth and development is also influenced by the nutritional condition...

  • Review
  • Open Access
187 Citations
27,179 Views
49 Pages

Thirty Years of Research on Crown-of-Thorns Starfish (1986–2016): Scientific Advances and Emerging Opportunities

  • Morgan S. Pratchett,
  • Ciemon F. Caballes,
  • Jennifer C. Wilmes,
  • Samuel Matthews,
  • Camille Mellin,
  • Hugh P. A. Sweatman,
  • Lauren E. Nadler,
  • Jon Brodie,
  • Cassandra A. Thompson and
  • Sven Uthicke
  • + 8 authors

21 September 2017

Research on the coral-eating crown-of-thorns starfish (CoTS) has waxed and waned over the last few decades, mostly in response to population outbreaks at specific locations. This review considers advances in our understanding of the biology and ecolo...

  • Article
  • Open Access
30 Citations
13,610 Views
18 Pages

Environmental Tipping Points for Sperm Motility, Fertilization, and Embryonic Development in the Crown-of-Thorns Starfish

  • Ciemon Frank Caballes,
  • Morgan S. Pratchett,
  • Maia L. Raymundo and
  • Jairo A. Rivera-Posada

15 February 2017

For broadcast spawning invertebrates such as the crown-of-thorns starfish, early life history stages (from spawning to settlement) may be exposed to a wide range of environmental conditions, and could have a major bearing on reproductive success and...

  • Article
  • Open Access
2 Citations
1,336 Views
16 Pages

Daily Variation in the Feeding Activity of Pacific Crown-of-Thorns Starfish (Acanthaster cf. solaris)

  • Josie F. Chandler,
  • Deborah Burn,
  • Will F. Figueira,
  • Peter C. Doll,
  • Abby Johandes,
  • Agustina Piccaluga and
  • Morgan S. Pratchett

5 August 2025

The ecological impact of crown-of-thorns starfish (CoTS; Acanthaster spp.) on coral reefs is intrinsically linked to their feeding behaviour. Management thresholds designed to mitigate coral loss driven by elevated densities of crown-of-thorns starfi...

  • Review
  • Open Access
46 Citations
12,396 Views
14 Pages

12 March 2017

The Great Barrier Reef (GBR) is currently experiencing widespread crown of thorns starfish (CoTS) outbreaks, as part of the fourth wave of outbreaks since 1962. It is believed that these outbreaks have become more frequent on the GBR and elsewhere in...

  • Communication
  • Open Access
18 Citations
7,077 Views
9 Pages

Crown-of-Thorns Starfish Larvae Can Feed on Organic Matter Released from Corals

  • Ryota Nakajima,
  • Nobuyuki Nakatomi,
  • Haruko Kurihara,
  • Michael D. Fox,
  • Jennifer E. Smith and
  • Ken Okaji

6 October 2016

Previous studies have suggested that Crown-of-Thorns starfish (COTS) larvae may be able to survive in the absence of abundant phytoplankton resources suggesting that they may be able to utilize alternative food sources. Here, we tested the hypothesis...

  • Article
  • Open Access
26 Citations
7,349 Views
15 Pages

10 March 2017

Specific patterns in the initiation and spread of reef-wide outbreaks of crown-of-thorns starfish are important, both to understand potential causes (or triggers) of outbreaks and to develop more effective and highly targeted management and containme...

  • Article
  • Open Access
13 Citations
6,983 Views
9 Pages

Using Long-Term Removal Data to Manage a Crown-of-Thorns Starfish Population

  • Masako Nakamura,
  • Yoshimi Higa,
  • Naoki H. Kumagai and
  • Ken Okaji

18 November 2016

Background: Removal programs are effective strategies for short-term management of Crown-of-Thorns Starfish (Acanthaster spp.) populations, especially on a small scale. However, management programs are costly, and, in order to be effective, they must...

  • Article
  • Open Access
14 Citations
10,770 Views
12 Pages

10 December 2016

Outbreaks of the crown-of-thorns starfish (Acanthaster cf. solaris, COTS) are one of the primary causes of coral decline in the Indo-Pacific region. Effective methods to control COTS outbreaks may therefore be one of the most direct and immediate way...

  • Article
  • Open Access
701 Views
14 Pages

Rates of Spawning and Mortality Using Contrasting Methods for Culling Pacific Crown-of-Thorns Starfish, Acanthaster cf. solaris

  • Morgan S. Pratchett,
  • Ciemon F. Caballes,
  • Leighton T. Levering,
  • Deborah Burn,
  • Josie F. Chandler,
  • Alec S. Leitman and
  • Peter C. Doll

1 December 2025

Timely, concerted, and persistent culling (or manual removal) is required to effectively manage population irruptions of crown-of-thorns starfish (CoTS; Acanthaster spp.). However, there are concerns that handling and culling gravid starfish may indu...

  • Article
  • Open Access
19 Citations
6,271 Views
13 Pages

21 February 2017

Despite the presence of numerous sharp poisonous spines, adult crown-of-thorns starfish (CoTS) are vulnerable to predation, though the importance and rates of predation are generally unknown. This study explores variation in the incidence and severit...

  • Communication
  • Open Access
41 Citations
9,312 Views
11 Pages

Larval Survivorship and Settlement of Crown-of-Thorns Starfish (Acanthaster cf. solaris) at Varying Algal Cell Densities

  • Morgan S. Pratchett,
  • Symon Dworjanyn,
  • Benjamin Mos,
  • Ciemon F. Caballes,
  • Cassandra A. Thompson and
  • Shane Blowes

10 January 2017

The dispersal potential of crown-of-thorns starfish (CoTS) larvae is important in understanding both the initiation and spread of population outbreaks, and is fundamentally dependent upon how long larvae can persist while still retaining the capacity...

  • Article
  • Open Access
1,563 Views
20 Pages

Distribution Shifts of Acanthaster solaris Under Climate Change and the Impact on Coral Reef Habitats

  • Shangke Su,
  • Jinquan Liu,
  • Bin Chen,
  • Wei Wang,
  • Jiaguang Xiao,
  • Yuan Li,
  • Jianguo Du,
  • Jianhua Kang,
  • Wenjia Hu and
  • Junpeng Zhang

17 March 2025

Pacific crown-of-thorns starfish (Acanthaster solaris) outbreaks pose a significant threat to coral reef ecosystems, with climate change potentially exacerbating their distribution and impact. However, there remains only a small number of predictive...

  • Review
  • Open Access
11 Citations
12,972 Views
35 Pages

9 November 2022

Charonia tritonis (Charoniidae), one of the largest marine gastropods and an echinoderm specialist, preys on Crown-of-Thorns starfish (CoTS), a recurring pest that continues to be a leading cause of coral mortality on Indo-Pacific reefs. Widespread h...

  • Review
  • Open Access
80 Citations
23,785 Views
19 Pages

22 January 2017

Predatory release has long been considered a potential contributor to population outbreaks of crown-of-thorns starfish (CoTS; Acanthaster spp.). This has initiated extensive searches for potentially important predators that can consume large numbers...

  • Article
  • Open Access
22 Citations
9,580 Views
9 Pages

Carotenoids in Marine Invertebrates Living along the Kuroshio Current Coast

  • Takashi Maoka,
  • Naoshige Akimoto,
  • Miyuki Tsushima,
  • Sadao Komemushi,
  • Takuma Mezaki,
  • Fumihito Iwase,
  • Yoshimitsu Takahashi,
  • Naomi Sameshima,
  • Miho Mori and
  • Yoshikazu Sakagami

22 August 2011

Carotenoids of the corals Acropora japonica, A. secale, and A. hyacinthus, the tridacnid clam Tridacna squamosa, the crown-of-thorns starfish Acanthaster planci, and the small sea snail Drupella fragum were investigated. The corals and the tridacnid...

  • Article
  • Open Access
35 Citations
8,460 Views
9 Pages

Violapyrones H and I, New Cytotoxic Compounds Isolated from Streptomyces sp. Associated with the Marine Starfish Acanthaster planci

  • Hee Jae Shin,
  • Hwa-Sun Lee,
  • Jong Seok Lee,
  • Junho Shin,
  • Min Ah Lee,
  • Hyi-Seung Lee,
  • Yeon-Ju Lee,
  • Jieun Yun and
  • Jong Soon Kang

30 May 2014

Two new α-pyrone derivatives, violapyrones H (1) and I (2), along with known violapyrones B (3) and C (4) were isolated from the fermentation broth of a marine actinomycete Streptomyces sp. The strain was derived from a crown-of-thorns starfish, Acan...

  • Article
  • Open Access
5 Citations
3,156 Views
13 Pages

28 June 2020

The amount of live and dead coral is related to recruitment, but differentiating them by remote sensing techniques is difficult. We measured change in the amount of live, bleached, and recently (<6 months) dead coral cover (CCA6) for an island arc...

  • Feature Paper
  • Article
  • Open Access
17 Citations
7,508 Views
9 Pages

Age and Growth of An Outbreaking Acanthaster cf. solaris Population within the Great Barrier Reef

  • M. Aaron MacNeil,
  • Karen M. Chong-Seng,
  • Deborah J. Pratchett,
  • Casssandra A. Thompson,
  • Vanessa Messmer and
  • Morgan S. Pratchett

14 March 2017

Despite having been studied for more than 40 years, much about the basic life history of crown-of-thorns starfish (CoTS; Acanthaster spp.) remains poorly understood. Size at age—a key metric of productivity for any animal population—has yet to be cle...

  • Article
  • Open Access
3 Citations
3,605 Views
24 Pages

28 April 2023

The Great Barrier Reef (GBR) is a marine protected area subject to natural and anthropogenic disturbances. Water quality is critical for the health and protecting resilience of GBR coral ecosystems against the synergistic and cumulative pressures of...

  • Article
  • Open Access
2 Citations
2,330 Views
15 Pages

Molecular and Functional Characterization of a Novel Kunitz-Type Toxin-like Peptide in the Giant Triton Snail Charonia tritonis

  • Gege Zhang,
  • Huixia Jia,
  • Lei Luo,
  • Yang Zhang,
  • Xitong Cen,
  • Gaoyou Yao,
  • Hua Zhang,
  • Maoxian He and
  • Wenguang Liu

31 October 2022

It has been reported that the giant triton snail (Charonia tritonis) inserts its large proboscis and then injects venom or acid saliva from its salivary gland into its prey, the crown-of-thorns starfish Acanthaster planci (COTS), paralyzing it. A ful...