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🌊 Marine Least Concern 🌡️ Subtropical

Round scad

Decapterus punctatus Cuvier, 1829
Max Length
30 cm
Max Weight
-
Lifespan
-
Trophic Level
4.4
Depth
0–100 m
Climate
Subtropical
Resilience
High
Vulnerability
34.00/100
Typical Length
18 cm
Depth Zone
reef

📖 Overview

Adults inhabit neritic waters, often near sandy beaches . A shoaling species, generally near the bottom . They feed on planktonic invertebrates, primarily copepods, but also on gastropod larvae, ostracods and pteropods . Spawning occurs well offshore year-round . Eggs are pelagic . A good food fish . Caught commercially and used mainly for bait.

Scientific Name
Decapterus punctatus
Authority
Cuvier, 1829
Habitat
Marine
Climate
Subtropical
Body Shape
Fusiform / normal
IUCN Status
LC
Max Length
30 cm
Depth Range
0–100 m
Latitude
35°S – 45°N
Trophic Level
4.4
Resilience
High
Vulnerability
34.00/100
Salinity
30–40 ppt

🐟 Physical Description

Dorsal spines (total): 9; Dorsal soft rays (total): 30 - 34; Anal spines: 3; Anal soft rays: 26 - 29. Greenish above, whitish below; adults with 3-1 small black spots on curved LL; opercle with small black spot .: fusiform / normal.

🌀 Behaviour

Behavioural data for Round scad is currently being reviewed.

🦐 Diet

small fish
crustaceans
cephalopods

🥚 Reproduction

Size at Maturity
11cm TL

🌍 Habitat & Distribution

Marine; reef-associated; depth range 0 - 100 m . Subtropical; 45°N - 35°S, 98°W - 20°E South Africa, including the Madeira, Canary, Cape Verde, Ascension and St.

🌿 Ecology

Zone Preferences
🌊 Marine 🪸 Reef Associated
Trophic Level
4.4
Food Items

planktonic invertebrates, primarily copepods, but also on gastropod larvae, ostracods and pteropods

📐 Morphometrics

Length–Weight Relationship: W = 0.01122 × L2.99 (TL)
Max TL
30cm
Dorsal Spines
9
Dorsal Rays
32
Anal Spines
3
Anal Rays
28

🌡️ Water Parameters & Tolerance

Salinity Range
30–40ppt

🛡️ Conservation Assessment

IUCN Category
Least Concern
Assessment Date
2012

📊 Population Risk & Fisheries

Population Resilience
High
Minimum doubling time
Fishing Vulnerability
34.00/100
Low vulnerability
Trophic Level
4.4
Apex / Top predator
Body Shape
Fusiform / normal
Climate Zone
Subtropical
Latitude Range
45°N – 35°S
Described By
Cuvier, 1829

🌐 Names & Taxonomy

Scientific Synonyms

Scientific Name Author Year Status
Caranx punctatus Cuvier 1829 Synonym
Caranx sanctaehelenae Cuvier 1833 Synonym
Decapterus sanctaehelenae Cuvier 1833 Synonym
Decapterus santa-helenae Cuvier 1833 Synonym

🗺️ Global Occurrence Map

Occurrence records from the Global Biodiversity Information Facility (GBIF) - 197 records indexed .

Occurrence density from GBIF View GBIF records ↗

👥 Community & Contribute

Aquareap Community Observations
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