Aidanosagitta oceania   (Grey, 1930)

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Classification / Names Common names | Synonyms | CoL | ITIS | WoRMS

Sagittoidea | Aphragmophora | Sagittidae

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

Pelagic; brackish; depth range 74 - 150 m (Ref. 97338).  Tropical; 35°N - 8°S, 130°E - 156°E

Distribution Countries | FAO areas | Ecosystems | Occurrences | Introductions

Pacific Ocean.

Length at first maturity / Size / Weight / Age

Maturity: Lm 0.6  range ? - ? cm Max length : 0.8 cm BL male/unsexed; (Ref. 3682); common length : 0.5 cm TL male/unsexed; (Ref. 97339)

Short description Morphology

Small chaetognath with a firm, opaque and flexible body. Muscles are strong. Lateral fields are narrow. Width of body is of same size from head to caudal septum. Intestinal diverticula is present. Head is of normal size with an inconspicuous neck. Tail segment constitutes 25 to 29 per cent of total length of animal. Eyes are large, with pigment in a large spot formed by three branches toward centre and two shorter ones toward sides. Collarette is absent. Corona ciliata seen at from neck region, extending to about midway to ventral ganglion. Ventral ganglion is large for the size of the animal. nterior fins are slightly shorter than posterior fins and begin just behind posterior end of ventral ganglion. A rayless zone is absent and at anterior end a small part of fin has rays perpendicular to body walls. Posterior fins are triangular in shape extending to seminal vesicles with widest region at the tail segment. About two thirds of the length of posterior fin is on tail. Rayless zone is absent and in the most anterior part there is a small region with rays directed perpendicular to body walls. Distance between paired fins is only about 2.8 per cent of total length. Tail fin is long.

Biology     Glossary (e.g. epibenthic)

This is a coastal neritic species. It is carnivorous; feeds on crustaceans, hydromedusae, other chaetognaths and fish larvae (Ref. 97339). Hermaphrodite; male gonads located in the tail segment and the female in the posterior part of the trunk. Fertilization occurs through copulation (Ref. 97339).

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

Hermaphrodite; male gonads located in the tail segment and the female in the posterior part of the trunk. Fertilization occurs through copulation (Ref. 97339).

Main reference References | Coordinator | Collaborators

Pierrot-Bultz, A. 2004. (Ref. 3682)

IUCN Red List Status (Ref. 123251)

CITES status (Ref. 108899)

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

Human uses

| FishSource |


More information

FAO areas
Food items
Common names
Egg development
Mass conversion

Internet sources

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

Estimates of some properties based on models

Preferred temperature (Ref. 115969): 21.7 - 26.8, mean 25.2 (based on 59 cells).
Vulnerability (Ref. 71543)
Low vulnerability (10 of 100)
Price category (Ref. 80766)