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🌊 Marine Least Concern 🌡️ Deep-water

Lampanyctus Cuprarius

Lampanyctus cuprarius Tåning, 1928
Max Length
7.9 cm
Max Weight
-
Lifespan
-
Trophic Level
3.3
Depth
40–1000 m
Climate
Deep-water
Resilience
High
Vulnerability
25.00/100
Typical Length
-
Depth Zone
deep-water

📖 Overview

High-oceanic, mesopelagic species, found at 650-1,000 m during daytime, at 40-278 during the night (maximum abundance at 100 m at night) . Feeds on amphipods, calanoid copepods, conchoecid ostracods, and euphausiid larvae and adults . There are larger specimens reported for this species (11 cm by Gibbs et al. (1972) and 12.8 cm from the southwest Atlantic by Parin et al. (1974)) but these may be misidentifications .

Scientific Name
Lampanyctus cuprarius
Authority
Tåning, 1928
Habitat
Marine
Climate
Deep-water
IUCN Status
LC
Max Length
7.9 cm
Depth Range
40–1000 m
Latitude
35°S – 41°N
Trophic Level
3.3
Resilience
High
Vulnerability
25.00/100
Migration
Oceanodromous
Salinity
30–40 ppt

🐟 Physical Description

Dorsal spines (total): 0; Dorsal soft rays (total): 16 - 19; Anal spines: 0; Anal soft rays: 17 - 20; Vertebrae: 32 - 34. 10-11 AO photophores; 8-10 tooth patches on the lower limb of the second gill arch; 32-33 lateral line organs . Pectoral fin rays rather weak, flexible .

🌀 Behaviour

Behavioural data for Lampanyctus Cuprarius 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; bathypelagic; oceanodromous ; depth range 40 - 1000 m , usually 100 - ? m . Deep-water; 41°N - 35°S Atlantic Ocean: bipolar in subtropical waters.

🌿 Ecology

Zone Preferences
🌊 Marine 🌑 Deep Water
Migration
Oceanodromous
Trophic Level
3.3±0.45
Food Items

amphipods, calanoid copepods, conchoecid ostracods, and euphausiid larvae and adults (Ref

📐 Morphometrics

Length–Weight Relationship: W = 0.0049 × L3.15 (TL)
Max TL
7.9cm
Dorsal Rays
18
Anal Rays
19
Vertebrae
33

🌡️ 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
25.00/100
Low vulnerability
Trophic Level
3.3
Predator
Climate Zone
Deep-water
Latitude Range
41°N – 35°S
Described By
Tåning, 1928

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