Home · Scaridae · Blisterside
Blisterside (Sparisoma chrysopterum) — Scaridae

Blisterside

Sparisoma chrysopterum
Family: Scaridae
LC · Least Concern

The Blisterside (Sparisoma chrysopterum) is a saltwater fish of the family Scaridae that grows up to 46 cm.

Length
46 cm
Water
Saltwater
Depth
1.0–15.0 m
Diet
Herbivore
Behaviour
Solitary
Activity
Diurnal
Body shape
Torpedo-shaped
Substrate
Stone or rock
Danger
Venomous / poisonous
Range
Coral reefs and seagrass beds of the western Atlantic and the Caribbean.
Edibility
Rarely eaten

Want the complete picture on the Blisterside?

Get the app

Description

The redtail parrotfish (Sparisoma chrysopterum) is a parrotfish of the family Scaridae from the western Atlantic and Caribbean. The species has a powerful body and a beak-like mouth of fused teeth with which it scrapes algae and seagrass from the reef. Adult males are greenish with a conspicuous reddish tail. Juveniles and primary-phase fish can rapidly assume a mottled pattern with which they blend into the bottom. The species inhabits coral reefs and adjacent seagrass beds and is a protogynous hermaphrodite, in which fish first function as females and later turn into males.

Frequently asked questions

How do you recognise the Blisterside?

The Blisterside has a torpedo-shaped body, is mainly green and shows a plain pattern. Greenish with a reddish tail; protogynous hermaphrodite that can change its colour pattern quickly. Note: in tropical areas this species can cause ciguatera poisoning when eaten; large specimens of coral reef predators can accumulate the toxin. Eat with caution or avoid in risk areas.

Where does the Blisterside live?

The Blisterside lives in the sea (marine waters) and is mostly found around stony or rocky ground. Coral reefs and seagrass beds of the western Atlantic and the Caribbean.

How big does the Blisterside get?

The Blisterside grows to a maximum of about 46 cm. On average the species is around 25 cm.

Is the Blisterside dangerous to humans?

The Blisterside is venomous — handle spines with care and seek medical help after a sting if needed. The fish is harmless to handle. There are reports of ciguatera poisoning after eating it; in case of tingling, nausea, vomiting or reversed hot-cold sensation, seek medical help.

Is the Blisterside edible?

The Blisterside is rarely eaten.

More photos

Blisterside (Sparisoma chrysopterum) — Scaridae — 2
iNaturalist ((c) Jacob Jones, some rights reserved (CC BY-NC))
Blisterside (Sparisoma chrysopterum) — Scaridae — 3
iNaturalist ((c) wkonze, some rights reserved (CC BY-NC))
Blisterside (Sparisoma chrysopterum) — Scaridae — 4
Wikimedia Commons — Williams, J. T.; Carpenter, K. E.; Van Tassell, J. L.; Hoetjes, P.; Toller, W.; Etnoyer, P.; Smith, M. (CC BY 2.5)
Blisterside (Sparisoma chrysopterum) — Scaridae — 5
iNaturalist ((c) Melissa, some rights reserved (CC BY-NC))
Fin

Want the complete picture on the Blisterside?

Point your camera at the fish and Fin names the species in seconds. Free, and the Blisterside is one of 12,519 species in the app.

Get the app →

All data

Identification

English name
Blisterside verified
Scientific name
Sparisoma chrysopterum
Family
Scaridae
Other names
Blue black-finned chub; Blue parrotfish; Kwab; Pink kwab; Pink parrot; Redtail parrotfish verified

Appearance

Size class
Large verified
Max length (cm)
46.0 verified
Average length (cm)
25.0 verified
Body shape
Torpedo-shaped sourced
Dominant colour
Green inferred
Pattern
Plain inferred
Tail shape
Straight inferred
Mouth position
Beak-shaped inferred
Lips
Thin inferred
Barbels
No sourced
Dorsal spines
Yes sourced

Habitat & distribution

Water type
Saltwater sourced
Substrate
Stone or rock sourced
Min depth (m)
1.0 verified
Max depth (m)
15.0 verified
Natural range
Coral reefs and seagrass beds of the western Atlantic and the Caribbean. inferred
Origin
Native sourced

Behaviour & biology

Diet
Herbivore sourced
Diet (detail)
Algae and seagrass sourced
Social behaviour
Solitary inferred
Territorial
No inferred
Activity
Diurnal inferred
Reproduction
Protogynous (female first) sourced
Sexual dimorphism
Yes inferred
Seasonality
Present year-round in its habitat; no pronounced seasonality known. inferred
Special features
Greenish with a reddish tail; protogynous hermaphrodite that can change its colour pattern quickly. Note: in tropical areas this species can cause ciguatera poisoning when eaten; large specimens of coral reef predators can accumulate the toxin. Eat with caution or avoid in risk areas. verified

For anglers

Edibility
Rarely eaten sourced
Fishing method
Fishing with natural bait (fish, shrimp, worm) or lures close to reef and rock structures. inferred
Regulations source
FishBase ↗ inferred

Safety

Danger to humans
Venomous / poisonous sourced
First aid
The fish is harmless to handle. There are reports of ciguatera poisoning after eating it; in case of tingling, nausea, vomiting or reversed hot-cold sensation, seek medical help. sourced

Status & sources

Sources
FishBase via GBIF (DwC-A), CC-BY-NC 4.0

Same genus Sparisoma

More from the family Scaridae

Fin

Want the complete picture on the Blisterside?

Point your camera at the fish and Fin names the species in seconds. Free, and the Blisterside is one of 12,519 species in the app.

Get the app →
Is this the Blisterside? Get the app