Fivesaddle Parrotfish
Fivesaddle Parrotfish
Fivesaddle Parrotfish
© François Libert
Fishes · Bony fishes · Parrotfishes

Fivesaddle Parrotfish

Scarus scaber Valenciennes, 1840
syn. Callyodon pectoralis, Callyodon scaber, Scarus pectoralis
37 cm900 g1-20 mLeast Concern
917

Scarus scaber, commonly known as the five-saddle undefined or dusky-capped undefined, is a fascinating species belonging to the family Scaridae. This marine ray-finned fish can be found throughout the 🌊 Indian Ocean, thriving in the tropical waters that stretch from western 🇹🇭 Thailand and northwest 🇮🇩 Indonesia to the coast of Africa, reaching as far south as Natal and as far north as the 🌊 Red Sea and the 🌊 Gulf of Aden. It's a reef-associated species, meaning it is closely tied to coral reef habitats, and can typically be found at depths ranging from 1 to 20 meters.

In terms of physical attributes, the five-saddle undefined can grow up to 37 centimeters in length and reach a weight of around 900 grams. Unlike some other marine species, it exhibits a behavior that is either solitary or involves forming small schools. This adaptability in social structure may play a role in its survival and distribution across such a wide range of the 🌊 Indian Ocean.

The five-saddle undefined serves an important ecological role in its reef environments. Like other undefined, it contributes to the health and maintenance of coral ecosystems through its feeding habits, which often involve grazing on algae that can otherwise overwhelm coral reefs. Understanding the distribution and behavior of Scarus scaber helps us appreciate the complex dynamics of marine ecosystems and the role each species plays in maintaining ecological balance.

Why it's threatened

There are no major threats known for this 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.

Comments

Please, sign in to leave a comment

Continue with a social account — yours will be created automatically.

No comments yet — be the first.

Last Update: June 28, 2026