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🌊 Marine Least Concern 🌡️ Tropical

Hooghly croaker

Panna heterolepis Trewavas, 1977
Max Length
29.5 cm
Max Weight
-
Lifespan
-
Trophic Level
3.5
Depth
-
Climate
Tropical
Resilience
High
Vulnerability
25.00/100
Typical Length
-
Depth Zone
-

📖 Overview

Hooghly croaker (Panna heterolepis), first described by Trewavas, 1977 is a medium-sized fish in the family Sciaenidae (order Perciformes). Adults typically reach 29.50 cm in maximum length. It inhabits marine coastal and open-ocean environments. It occurs in Tropical waters. It feeds on a mix of small fish and invertebrates as a mid-level predator. On the IUCN Red List, it is classified as Least Concern.

Scientific Name
Panna heterolepis
Authority
Trewavas, 1977
Habitat
Marine
Climate
Tropical
Body Shape
Fusiform / normal
IUCN Status
LC
Max Length
29.5 cm
Trophic Level
3.5
Resilience
High
Vulnerability
25.00/100
Salinity
30–40 ppt

🐟 Physical Description

Dorsal spines (total): 8 - 10; Dorsal soft rays (total): 32 - 37; Anal spines: 2; Anal soft rays: 6 - 7; Vertebrae: 25. Spines absent on supraorbital ridge of frontal in juveniles; transition from cycloid to ctenoid scales initiated at around 120 mm SL; all body scales, except on throat, ctenoid over 200 mm SL; scales absent on soft parts of dorsal and anal fins; lateral line scales covered with small, subsidiary scales; cephalic portion of swimbladder appendage terminating on carotid foramen of cranium (Ref 10086).: fusiform / normal; Cross section: circular.

🌀 Behaviour

Behavioural data for Hooghly croaker 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; benthopelagic. Tropical Indian Ocean: coasts of India, Sri Lanka, Bangladesh and Myanmar.

🌿 Ecology

Zone Preferences
🌊 Marine
Trophic Level
3.5±0.3

📐 Morphometrics

Length–Weight Relationship: W = 0.00851 × L3.06 (TL)
Max TL
29.5cm
Dorsal Spines
9
Dorsal Rays
35
Anal Spines
2
Anal Rays
7
Vertebrae
25

🌡️ Water Parameters & Tolerance

Salinity Range
30–40ppt

🛡️ Conservation Assessment

IUCN Category
Least Concern
Assessment Date
2018

📊 Population Risk & Fisheries

Population Resilience
High
Minimum doubling time
Fishing Vulnerability
25.00/100
Low vulnerability
Trophic Level
3.5
Predator
Body Shape
Fusiform / normal
Climate Zone
Tropical
Described By
Trewavas, 1977

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