Here’s a quick update on the Brown-marbled grouper (Epinephelus fuscoguttatus) based on current public sources.
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Status and overview: The Brown-marbled grouper is listed as vulnerable on the IUCN Red List, reflecting ongoing concerns about overfishing and large-bodied individuals in the live-food fish trade. This status has been in place since changes were reported around 2004.
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Regional issues: The species is widely distributed across Indo-Pacific reefs and is prized in the live fish trade, which elevates fishing pressure during spawning and at large sizes. This combination has driven declines in some areas and ongoing management debates in others.
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Health and consumption notes: Brown-marbled grouper flesh has been associated with ciguatera toxin outbreaks in certain regions, leading to precautionary restrictions or advisories in some markets. This toxin risk complicates consumer safety and can influence fishing and distribution patterns.
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Notable sources and context: You’ll find detailed species information, distribution notes, and conservation status across several sources, including the FishBase entry for the species and regional dive/reef guides that discuss threats and biology.
If you’d like, I can pull a concise, up-to-date snapshot with the latest regional advisories, if available, and provide hyperlinks to primary sources.
Sources
Basic facts about Brown-marbled grouper: lifespan, distribution and habitat map, lifestyle and social behavior, mating habits, diet and nutrition, population size and status.
animalia.bioComprehensive guide to the Brown-Marbled Grouper. Learn about habitat, feeding, reproduction, and where to encounter them on a Similan liveaboard.
www.bigbluedivingkhaolak.comDistributed in temperate and tropical zones including southern Okinawa. Found from the coast to deeper water offshore. Its body...
www.churaumi.okinawaBrown marbled grouper (Epinephelus fuscoguttatus) is an apex predator from coral reefs of the Indo-Pacific region. All five published case series of ciguatera after consumption of brown marbled grouper were reviewed to characterize the types, severity and chronicity of ciguatera symptoms associated …
pubmed.ncbi.nlm.nih.govA comprehensive online checklist of reef flora and fauna known to be present in the Moalboal reef ecosystem.
reefspecies.comBrown marbled grouper (Epinephelus fuscoguttatus) is an apex predator from coral reefs of the Indo-Pacific region. All five published case series of ciguatera after consumption of brown marbled grouper were reviewed to characterize the types, ...
pmc.ncbi.nlm.nih.govBrown marbled grouper is a medium sized fish and known as a benthic marine animal that is found near the bottom of coral reefs and pinnacles around Koh Tao
www.blackturtledive.comM-ratio results corroborate significant reductions in Ne throughout The Bahamas, with evidence for population bottlenecks in three islands and an active fish spawning aggregation along with apparent signs of inbreeding at two islands. Current estimates of Ne for Nassau grouper are considerably lower compared with historic levels. These findings represent important new contributions to our understanding of the evolutionary history, demographics and genetic connectivity of this endangered...
worldwidescience.org