Ciemon Caballes

Assistant Professor of Ecophysiology

University of Guam

Affiliations

College of Natural and Applied Sciences (CNAS)

UOG Land Grant | agInnovation Research Center

Micronesian Area Research Center (MARC)

University of Guam

Ciemon Caballes is an Assistant Professor of Ecophysiology at the University of Guam. His research focuses on the ecological physiology and management of Pacific crown-of-thorns starfish (Acanthaster cf. solaris), particularly population irruptions on Australia’s Great Barrier Reef. His recent work (2025–2026) in venues such as *Coral Reefs* and *Biology* advances scooter-assisted large-area diver-based (SALAD) survey methods, quantifies detectability for culling strategies, and assesses predation relative to fisheries management zones. Caballes also integrates sustainability science, environmental policy, and education into his research, addressing broader marine conservation challenges. His contributions inform evidence-based management of coral reef ecosystems and support international collaborations across the Indo-Pacific.

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Ciemon Caballes

University of Guam

Assistant Professor of Ecophysiology

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marine biology ecology biology fishery fish biology zoology marine systems evolutionary biology aquatic ecosystems aquaculture fishery research ecology and evolutionary biology aquatic conservation conservation biology oceanography marine policy morphology (biology) evolutionary ecology behavioral ecology coevolution harmful algae coastal conservation environmental science marine ornithology animal behavior aquatic toxicology algal research applied phycology reproductive biology marine ecology technology environmental resource management conservation letter sustainable development environmental education environmental policy of the united states education environmental policy sustainable tourism environmental protection environmental values sustainable design architecture sustainable products public policy sustainability science environmental anthropology environmental planning

Notable Scholarly Works

Notable Federal Grants

Collaborators

Detectability of Pacific Crown-Of-Thorns Starfish (Acanthaster Cf. Solaris) Using Scooter-Assisted Large Area Diver-Based (Salad) Surveys in the Northern Great Barrier Reef, Australia. Coral Reefs (2026)

Quantitative Assessment of Knowledge Gaps and Research Priorities for Understanding and Managing Population Irruptions of Crown-Of-Thorns Starfish (Acanthaster Cf. Solaris) on Australia’s Great Barrier Reef. Coral Reefs (2026)

biological conservationmarine systemscoastal conservationfish biologybiodiversityconservation scienceaquatic ecosystemsmarine policybiologymarine biologyaquatic conservationpopulation biologyfishery researchconservation biologyecologyevolutionary biologyfishery

Detectability and Exposure of Pacific Crown-Of-Thorns Starfish (Acanthaster Cf. Solaris) During Emerging Population Irruptions in the Northern Great Barrier Reef, Australia. Research Square (2025)

Detectability of Crown-Of-Thorns Starfish and Consequences for Culling or Removal. Biology (2025)

aquatic toxicologyaquaculturefish biologyzoologymarine biologyaquatic conservationfishery researchfishery

Early Detection of Renewed Population Irruptions of Pacific Crown-Of-Thorns Starfish (Acanthaster Cf. Solaris) on Australia’s Great Barrier Reef. ResearchOnline at James Cook University (James Cook University) (2025)

Predation on Adult Pacific Crown-Of-Thorns Starfish (Acanthaster Cf. Solaris) Relative to Fisheries Management Zones on Australia’s Great Barrier Reef. ResearchOnline at James Cook University (James Cook University) (2025)

Rates of Spawning and Mortality Using Contrasting Methods for Culling Pacific Crown-Of-Thorns Starfish, Acanthaster Cf. Solaris. Biology (2025)

Biophysical Processes Involved in the Initiation and Spread of Population Irruptions of Crown-Of-Thorns Starfish on the Great Barrier Reef. (2024)

Impacts of Ocean Warming on Echinoderms: A Meta‐Analysis. Ecology and Evolution (2023)

marine systemsocean sciencesoceanographyaquatic ecosystemsbiologymarine biologyecology

Increasing Densities of Pacific Crown-Of-Thorns Starfish (Acanthaster Cf. Solaris) at Lizard Island, Northern Great Barrier Reef, Resolved Using a Novel Survey Method. Scientific Reports (2023)