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🌊 Marine Least Concern 🌡️ Tropical

Panama grunt

Rhencus panamensis Steindachner, 1876
Max Length
39 cm
Max Weight
-
Lifespan
-
Trophic Level
3.8
Depth
10–60 m
Climate
Tropical
Resilience
Medium
Vulnerability
36.00/100
Typical Length
25 cm
Depth Zone
demersal

📖 Overview

Panama grunt (Rhencus panamensis) is a ray-finned fish. It inhabits marine (saltwater) waters in benthic environments. This species can reach a maximum total length of 39 cm. It occurs at depths between 10 and 60 metres. With a trophic level of 3.8, it is a mid-level predator. It is assessed as Least Concern on the IUCN Red List.

Scientific Name
Rhencus panamensis
Authority
Steindachner, 1876
Habitat
Marine
Climate
Tropical
Body Shape
Fusiform / normal
IUCN Status
LC
Max Length
39 cm
Depth Range
10–60 m
Latitude
10°S – 32°N
Trophic Level
3.8
Resilience
Medium
Vulnerability
36.00/100
Salinity
30–40 ppt

🔬 Taxonomy

Genus
Rhencus
Rhencus
Species
Panama grunt
Rhencus panamensis

🐟 Physical Description

Body oblong, moderately compressed, and not very deep (depth contained 2.3 to 2.5 times in standard length); mouth moderate sized and terminal, its posterior end located at the same level as the anterior rim of the eye; first gill arch with 20 to 23 gill rakers; dorsal fin deeply notched, with 12 to 13 spines and 13 soft rays (XII-XIII, 13); pectoral fins very long (contained 2.7 to 3.3 times in standard length), reaching origin of anal fin; second anal spine much stronger and longer than third; back gray; belly silvery; posterior angle of operculum with a very distinct black spot preceded by a green area .: fusiform / normal.

🌀 Behaviour

Behavioural data for Panama grunt is currently being reviewed.

🦐 Diet

aquatic invertebrates
small fish
algae
detritus

🥚 Reproduction

🐣 Oviparous

Oviparous, distinct pairing during breeding .

🌍 Habitat & Distribution

Marine; demersal; depth range 10 - 60 m . Tropical; 32°N - 10°S, 117°W - 76°W

🌿 Ecology

Zone Preferences
🌊 Marine ⬇️ Benthic
Trophic Level
3.8±0.7

📐 Morphometrics

Length–Weight Relationship: W = 0.01148 × L2.97 (TL)
Max TL
39cm

🌡️ Water Parameters & Tolerance

Salinity Range
30–40ppt

🛡️ Conservation Assessment

IUCN Category
Least Concern
Assessment Date
2007

📊 Population Risk & Fisheries

Population Resilience
Medium
Minimum doubling time
Fishing Vulnerability
36.00/100
Moderate vulnerability
Trophic Level
3.8
Predator
Body Shape
Fusiform / normal
Climate Zone
Tropical
Latitude Range
32°N – 10°S
Described By
Steindachner, 1876

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