🌊 Marine
🌡️ Temperate
Grey knifefish
Bathystethus cultratus Bloch & Schneider, 1801
📖 Overview
A plankton-picking species completely lacking teeth, they live in surface layers, rarely leaving the upper few meters of water, swimming rapidly and continuously .
Scientific Name
Bathystethus cultratus
Authority
Bloch & Schneider, 1801
Habitat
Marine
Climate
Temperate
Max Length
30 cm
Trophic Level
3.4
Vulnerability
17.00/100
Salinity
30–40 ppt
🔬 Taxonomy
Genus
Bathystethus
Bathystethus
Species
Grey knifefish
Bathystethus cultratus
🐟 Physical Description
Physical description for Grey knifefish is currently being compiled.
🌀 Behaviour
Behavioural data for Grey knifefish 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; pelagic-neritic. Temperate Southwest Pacific.
🌿 Ecology
Zone Preferences
🌊 Marine
🐟 Pelagic
Trophic Level
3.4±0.4
📐 Morphometrics
Length–Weight Relationship:
W = 0.01413 × L3.03
(TL)
Max TL
30cm
🌡️ Water Parameters & Tolerance
Salinity Range
30–40ppt
📊 Population Risk & Fisheries
Fishing Vulnerability
17.00/100
Low vulnerability
Trophic Level
3.4
Predator
Climate Zone
Temperate
Described By
Bloch & Schneider, 1801
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