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🧬 Biological Classification (Kingdom to Species)Calanus finmarchicus

Kingdom

Animalia

Phylum

Arthropoda

Class

Copepoda

Order

Calanoida

Family

Calanidae

Genus

Calanus

Species

Calanus finmarchicus

Copepoda❔ Diet unknown

Calanus finmarchicus

Calanus finmarchicus (Calanus finmarchicus · Calanus finmarchicus)

🛡️ Conservation Status (IUCN Red List)NE (Not Evaluated)

Not Evaluated (NE) on the IUCN Red List yet.

Geological Era

Extant

Diet

No data

Length · Height

No data · No data

Mass · Top Speed

No data · No data

Habitat & Fossil Locality

Waters of the Arctic Ocean and North Atlantic, at depths of 0–3,000 m

💡 Everyday Comparisons for Size, Mass & Speed

💡 Its depth distribution of 3,000 m is about 1.5 times the height of Hallasan (1,947 m) (Comparison).
💡 SeaLifeBase classifies this copepod as a commercial fishery species. Its way of building up oil in the body to survive seasons with scarce food resembles a bear storing fat before hibernation (Comparison).

Reference standards: coach bus ~12 m, mid-size car ~4.9 m, compact car ~1 t, basketball hoop 3.05 m, credit card 8.56 cm.

#칼라누스요각류#Calanus finmarchicus

📖 1. Overview

Calanus finmarchicus is a planktonic copepod living in the Arctic Ocean and North Atlantic, counted among the largest and most important boreal copepods in the North Sea.

🦴 2. Anatomy & Morphology

It stores wax (oil) inside an oil sac in its body. The prosome length of the 5th copepodite stage (C5) is 1.6 mm in small individuals and 2.8 mm in large ones, and larger individuals can store more wax.

🔍 3. Ecology & Behavior

It performs diel vertical migration, gathering in upper water layers at night. From the egg, it passes through 6 nauplius stages and 5 copepodite stages to become an adult, and during mating the male attaches a spermatophore to the female's underside. It appears to use its stored oil during summer-to-autumn dormancy.