Candelamoa Parrotfish
Candelamoa Parrotfish
© Rafi Amar
Fishes · Bony fishes · Parrotfishes

Candelamoa Parrotfish

Hipposcarus harid (Forsskål, 1775)
syn. Callyodon harid, Hipposcarus harid vexillus, Pseudoscarus harid, Scarus cyanurus, Scarus harid
35 - 75 cm2.5 Kg1-25 mLeast Concern
905

Hipposcarus harid, commonly known as the Longnose undefined or Candelamoa undefined, is a notable species dwelling in the coral reefs of the 🌊 Indian Ocean and the 🌊 Red Sea. These fish are often seen living within a depth range of 1 to 25 meters, showcasing the vibrant life thriving in tropical waters. They reach a maximum length of around 75 centimeters, although they are more commonly found at lengths of about 35 centimeters, with a typical weight up to 2.3 kilograms.

The geographical distribution of this species spans the undefined, from the 🌊 Red Sea down to the 🇲🇿 Mozambique Channel. Their reach extends to the maritime zones around 🇲🇬 Madagascar, the 🇸🇨 Seychelles, and as far east as 🇱🇰 Sri Lanka, the 🇲🇻 Maldives, and the Chagos (🇮🇴 British Indian Ocean Territory) Islands. Within these regions, Hipposcarus harid resides in coastal areas closely tied to coral reefs and reef flats. This rich habitat supports their complex social structures, including formations of harems consisting of a single male and multiple females, along with large schools for foraging activities.

Fascinatingly, Hipposcarus harid exhibit protogynous hermaphroditism, meaning they switch genders throughout their lives. Initially, individuals are either female or born as primary males. Some of these females later transform into secondary males, a process known as the terminal phase. This intricate lifecycle is paired with their oviparous reproduction, where mating pairs form specifically for egg-laying. Their diet mainly encompasses benthic algae found along the ocean floor, essential to their ecological niche.

The species is fished using nets and artisanal techniques, with the fresh catch sold in local markets. A unique cultural phenomenon occurs each April in the Farasan Islands of the southern 🌊 Red Sea. During this time, Hipposcarus harid inexplicably gather in a shallow lagoon, drawing the attention of local festivities known as the Hareed festival. Despite nearly all the fish being caught during this event, they strikingly return each year, continuing a historical pattern of consumption and trade that dates back to the Byzantine period.

Through their ecological roles and interactions with human societies, Hipposcarus harid remain a critical component of marine biodiversity, illustrating the complex tapestry of life in the world's tropical oceans.

Why it's threatened

Biological resource use
Intentional use: (subsistence/small scale) [harvest]

There is some localized fishing in the Red Sea but this is not considered to affect the overall population of the species.

Parrotfishes show varying degrees of habitat preference and utilization of coral reef habitats, with some species spending the majority of their life stages on coral reefs, while others primarily utilize seagrass beds, mangroves, algal beds, and /or rocky reefs. Although the majority of the parrotfishes occur in mixed habitat (primarily inhabiting seagrass beds, mangroves, and rocky reefs) approximately 78% of these mixed habitat species are experiencing greater than 30% loss of coral reef area and habitat quality across their distributions. Of those species that occur exclusively in coral reef habitat, more than 80% are experiencing a greater than 30% of coral reef loss and degradation across their distributions. However, more research is needed to understand the long-term effects of habitat loss and degradation on these species populations. Widespread coral reef loss and declining habitat conditions are particularly worrying for species that depend on live coral reefs for food and shelter especially as studies have shown that protection of pristine habitats facilitate the persistence of adult populations in species that have spatially separated adult and juvenile habitats. Furthermore, coral reef loss and declining habitat conditions are particularly worrying for some corallivorous excavating parrotfishes that play major roles in reef dynamics and sedimentation (Comeros-Raynal et al. 2012).

Threat classification from the IUCN Red List.

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Last Update: June 28, 2026