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🌊 Marine Data Deficient 🌡️ Tropical

Cherry seabream

Polysteganus cerasinus Iwatsuki & Heemstra, 2015
Max Length
13.4 cm
Max Weight
-
Lifespan
-
Trophic Level
3.7
Depth
-
Climate
Tropical
Resilience
High
Vulnerability
27.00/100
Typical Length
-
Depth Zone
reef

📖 Overview

This species is more likely to inhabit the somewhat shallower coastal waters around its area of occurrence than other Polysteganus which have been trawled deeper than 200 m .

Scientific Name
Polysteganus cerasinus
Authority
Iwatsuki & Heemstra, 2015
Habitat
Marine
Climate
Tropical
Body Shape
Short and / or deep
IUCN Status
DD
Max Length
13.4 cm
Trophic Level
3.7
Resilience
High
Vulnerability
27.00/100
Salinity
30–40 ppt

🐟 Physical Description

Dorsal spines (total): 12; Dorsal soft rays (total): 10; Anal spines: 3; Anal soft rays: 8. This species is distinguished from its congeners by the following set of characters: scale rows above lateral line 6½ and between 5th dorsal-fin spine base and lateral line 4½; pored lateral-line scales 49; suborbital depth is clearly less than orbit diameter (OD), 60% OD; without lines of blue spots on body; dorsal-fin rays are reddish pink but yellowish membranes of both pinkish dorsal-fin and caudal-fin fin lobes; absence of blue iridescence on body but bright whitish iridescence on each body scale of lateral side of bright pinkish body; deep body 43% SL; without bony bulge before and above eye; pinkish upper and lower caudal-fin as well as rear pinkish margin of the caudal fin with yellowish hyaline membrane of most of caudal fin with no whitish upper and lower margins; rear margin of membrane of branchiostegal rays is yellow, with yellow hue on some body scales just above upper pectoral-fin base; caudal fin is moderately forked .: short and / or deep; Cross section: compressed.

🌀 Behaviour

Behavioural data for Cherry seabream is currently being reviewed.

🦐 Diet

aquatic invertebrates
small fish
algae
detritus

🥚 Reproduction

🐣 Oviparous 📦 Batch Spawner
Spawning Season
spring-summer
Spawn Location
Pelagic
Fertilization
External

🌍 Habitat & Distribution

Marine; reef-associated; depth range ? - 127 m . Tropical Indian Ocean: Mascarene Plateau, Saya de Malha Bank.

🌿 Ecology

Zone Preferences
🌊 Marine 🪸 Reef Associated
Trophic Level
3.7±0.6

📐 Morphometrics

Length–Weight Relationship: W = 0.01995 × L2.96 (TL)
Max TL
13.4cm
Dorsal Spines
12
Dorsal Rays
10
Anal Spines
3
Anal Rays
8

🌡️ Water Parameters & Tolerance

Salinity Range
30–40ppt

🛡️ Conservation Assessment

IUCN Category
Data Deficient
Assessment Date
2019

📊 Population Risk & Fisheries

Population Resilience
High
Minimum doubling time
Fishing Vulnerability
27.00/100
Low vulnerability
Trophic Level
3.7
Predator
Body Shape
Short and / or deep
Climate Zone
Tropical
Described By
Iwatsuki & Heemstra, 2015

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