Kodama jujutsu, Hannan's pygmy squid

Kodama jujutsu   Reid, Sato, Jolly & Strugnell, 2023

Hannan's pygmy squid
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Classification / Names Common names | Synonyms | CoL | ITIS | WoRMS

Cephalopoda | Sepiolida | Idiosepiidae

Environment: milieu / climate zone / depth range / distribution range Ecology

Demersal; depth range 1 - 20 m (Ref. 129526).  Subtropical; 20°C - 27°C (Ref. 129526)

Distribution Countries | FAO areas | Ecosystems | Occurrences | Introductions

Northwest Pacific: Japan.

Length at first maturity / Size / Weight / Age

Maturity: Lm ?  range ? - ? cm Max length : 0.6 cm ML male/unsexed; (Ref. 129526); 1.29 cm ML (female)

Biology     Glossary (e.g. epibenthic)

This small squid is found around coral reefs, often in open water near reef cuts or in shallow seagrass beds. It was observed that this species habitually attach itself to the underside of various hydroids or any underwater substrate. It is seen hunting and foraging after sunset. It preys on small shrimp by grappling with its small arms. The species attack the dorsal side of prey to immobilise it within seconds, then swim or attach to substrate while consuming prey. The males approach females from below when mating (Ref. 129526). Found around coral reefs, often in open water near reef cuts or in shallow seagrass beds. It was observed that this species attach itself to the underside of coral, on hydroid that is being consumed by the nudibranch Bornella anguilla or any underwater substrate. It is seen hunting and foraging at night. Its prey includes small shrimp with bodies smaller or similar in size. Found in water with temperatures between 20 and 27°C (Ref. 129526).

Life cycle and mating behavior Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae

Main reference References | Coordinator | Collaborators

Reid, A., N. Sato, J. Jolly and J. Strugnell. 2023. (Ref. 129526)

IUCN Red List Status (Ref. 130435: Version 2024-2)

  Not Evaluated 

CITES status (Ref. 108899)

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

  Harmless

Human uses


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Trophic Ecology
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Diet composition
Food consumption
Predators
Ecology
Ecology
Population dynamics
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Max. ages / sizes
Length-weight rel.
Length-length rel.
Length-frequencies
Mass conversion
Abundance
Life cycle
Reproduction
Maturity
Fecundity
Spawning
Eggs
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Larvae
Distribution
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Introductions
Physiology
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Human Related
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Taxonomy
Common names
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References
References

Internet sources

BHL | BOLD Systems | CISTI | DiscoverLife | FAO(Publication : search) | Fishipedia | GenBank (genome, nucleotide) | GloBI | Gomexsi | Google Books | Google Scholar | Google | PubMed | Tree of Life | Wikipedia (Go, Search) | Zoological Record

Estimates based on models

Fishing Vulnerability (Ref. 71543): Low vulnerability (10 of 100).

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