Conservation assessment of the marine ornamental fish species Pomacanthus imperator (Emperor angelfish) in the Philippines
Paper Details
Conservation assessment of the marine ornamental fish species Pomacanthus imperator (Emperor angelfish) in the Philippines
Abstract
The Philippines is a significant contributor to the global marine ornamental fish trade. However, increasing fishing pressure and ongoing coral reef degradation raise concerns regarding the sustainability of key species collected from its coastal waters. This study assessed the conservation status of the highly valued emperor angelfish (Pomacanthus imperator) using the International Union for Conservation of Nature (IUCN) Red List Categories and Criteria. Data were obtained from interviews with 134 ornamental fish divers across eight provinces, supplemented by spatial mapping of reported occurrence points. The estimated extent of occurrence (EOO) for P. imperator was 94,568.19 km², which exceeds the threshold for threatened categories under IUCN Criterion B, resulting in a Least Concern (LC) classification for this assessment. Although the species exhibits a relatively broad distribution in northern Philippine waters, respondents identified multiple environmental threats affecting reef habitats, including coral degradatio, pollution, biological outbreaks, and frequent typhoon disturbances. These stressors may impact local abundance and habitat quality. To ensure long-term population stability, this study highlights the importance of habitat-focused management, responsible collection practices, and enhanced community engagement. Strategies such as regulating extraction intensity, improving monitoring systems, and implementing site-specific harvest limits are recommended to prevent localized declines while maintaining economic opportunities for ornamental fish collectors. These recommendations support Sustainable Development Goal 14 (Life Below Water) by promoting the sustainable use of marine resources and align with the Philippine Biodiversity Strategy and Action Plan (PBSAP) through the conservation of reef-associated species and the enhancement of ecosystem resilience.
Allen GR, Erdmann MV. 2012. Reef fishes of the East Indies. Vols. I–III. Tropical Reef Research, Perth, Australia.
Andriyono S, Kartika GRA, Syarif AF, Alam MJ. 2024. Management challenges of marine ornamental fish and their utilization as sustainable potential marine resources. Journal of Aquaculture Science 9(2), 1–11. https://doi.org/10.20473/joas.v9i2.56567
Anikuttan KK, Tamilmani G, Madhu K, Ramesh Kumar P, Sakthivel M, Johnson B, Bavithra R. 2023. Marine ornamental fish production for economic empowerment.
Aurellado MEB, Ticzon VS, Nañola CL, Cabansag JBP, Bacabac MMA, Sorgon KES, Hilomen VV. 2021. Effectiveness of Philippine nationally managed marine reserves in improving biomass and trophic structure of coral reef fish communities. Coastal Management 49(3), 293–312.
Biondo MV, Burki RP. 2019. Monitoring the trade in marine ornamental fishes through the European Trade Control and Expert System TRACES: challenges and possibilities. Marine Policy 108, 103620. https://doi.org/10.1016/j.marpol.2019.103620
Burke L, Selig E, Spalding M. 2011. Reefs at risk revisited. World Resources Institute. https://www.wri.org/publication/reefs-risk-revisited
Cowan J, Loria A, Wuthisiri W, Toonen RJ. 2020. Synergistic effects of ocean warming and cyanide poisoning in an ornamental tropical reef fish. Frontiers in Marine Science 7, 246. https://doi.org/10.3389/fmars.2020.00246
Dee LE, Horii SS, Thornhill DJ. 2014. Conservation and management of ornamental coral reef wildlife: successes, shortcomings, and future directions. Biological Conservation 169, 225–237. https://doi.org/10.1016/j.biocon.2013.11.025
Felíciano GNR, Licuanan WY. 2023. Coral community structure of Philippine fringing reefs is highly variable and largely determined by local environmental conditions. Coral Reefs 42(6), 1501–1516. https://doi.org/10.1007/s00338-023-02391-7
Froese R, Pauly D. 2025. FishBase. Version 02/2025. https://www.fishbase.org
IUCN Standards and Petitions Committee. 2024. Guidelines for using the IUCN Red List categories and criteria. Version 16. International Union for Conservation of Nature.
IUCN Standards and Petitions Committee. 2024. Rules of procedure for IUCN Red List assessments 2017–2020. Version 3.0. International Union for Conservation of Nature, Gland, Switzerland.
IUCN. 2009. Pomacanthus imperator. The IUCN Red List of Threatened Species 2009: e.T165862A6151184. https://www.iucnredlist.org/species/165862/6151184
Kithome KM. 2021. Knowledge, perception and practices of diving fishermen in relation to decompression sickness: a cross sectional survey of the diving fishermen of Vanga, Kwale County, Kenya. Doctoral dissertation, University of Nairobi.
Muallil RN, Tambihasan AM, Enojario MJ, Ong YN, Nañola Jr CL. 2020. Inventory of commercially important coral reef fishes in Tawi-Tawi Islands, Southern Philippines: The heart of the Coral Triangle. Fisheries Research 230, 105640. https://doi.org/10.1016/j.fishres.2020.105640
Muyot FB, Mutia MTM, Manejar AJA, Guirhem GL, Muñez MJ. 2019. Status of ornamental fish industry in the Philippines: Prospects for development. The Philippine Journal of Fisheries 26(2), 82–97. https://doi.org/10.31398/tpjf/26.2.2019A0011
Muyot FB, Mutia MTM, Manejar AJA, Guirhem GL, Muñez MJ. 2018. Value chain analysis of marine ornamental fish industry in the Philippines.
Palmtag MR. 2017. The marine ornamental species trade. In: Marine ornamental species aquaculture, 3–14.
Pountney SM. 2023. Survey indicates large proportion of fishkeeping hobbyists engaged in producing ornamental fish. Aquaculture Reports 29, 101503.
Pratchett MS, Hoey AS, Wilson SK. 2014. Reef degradation and the loss of critical ecosystem goods and services provided by coral reef fishes. Current Opinion in Environmental Sustainability 7, 37–43. https://doi.org/10.1016/j.cosust.2013.11.022
Randall JE. 2002. Pomacanthus imperator (juvenile) [photograph]. In: Froese R, Pauly D (eds), FishBase. https://www.fishbase.de/summary/Pomacanthus-imperator.html
Republic of the Philippines. 1998. Republic Act No. 8550: the Philippine Fisheries Code of 1998. https://lawphil.net/statutes/repacts/ra1998/ra_8550_1998.html
Republic of the Philippines. 2015. Republic Act No. 10654: an act to prevent, deter, and eliminate illegal, unreported, and unregulated fishing, amending Republic Act No. 8550. https://lawphil.net/statutes/repacts/ra2015/ra_10654_2015.html?utm_source=chatgpt.com
Tahiluddin AB, Sarri JH. 2022. An overview of destructive fishing in the Philippines. Acta Natura et Scientia 3(2), 116–125. https://doi.org/10.29329/actanatsci.2022.352.04
Wiadnya RGD, Hariati MA, Kusuma EW. 2020. Niche ornamental-marine fishery of Bangsring and the surrounding areas.
Timothy Jan L. Adel*, Armi G. Torres, 2026. Conservation assessment of the marine ornamental fish species Pomacanthus imperator (Emperor angelfish) in the Philippines. J. Biodiv. Environ. Sci., 28(1), 114-125.
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