Aidanosagitta oceania, Arrow worm

Aidanosagitta oceania   (Grey, 1930)

Arrow worm

Native range | All suitable habitat | Point map | Year 2050
This map was computer-generated and has not yet been reviewed.
Aidanosagitta oceania  AquaMaps  Data sources: GBIF OBIS
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Classification / Names Populärnamn | synonymer | CoL | ITIS | WoRMS

Sagittoidea | Aphragmophora | Sagittidae

Environment: milieu / climate zone / djupintervall / distribution range Ekologi

Pelagiska; brackvatten; djupintervall 74 - 150 m (Ref. 97338).  Tropical; 35°N - 8°S, 130°E - 156°E

Distribution Länder | FAO områden | Ekosystem | Förekomster | Utplanteringar

Pacific Ocean.

Length at first maturity / Size / Weight / Age

Könsmognad: Lm 0.6  range ? - ? cm Max length : 0.8 cm BL hane/ej könsbestämd; (Ref. 3682); common length : 0.5 cm TL hane/ej könsbestämd; (Ref. 97339)

Short description Morfologi

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.

Biologi     Ordlista (t.ex. epibenthic)

This is a coastal neritic species. It is carnivorous; feeds on crustaceans, hydromedusae, other chaetognaths and fish larvae (Ref. 97339). Mean latitude of occurrence = 10.75 (N); Present in China (Ref. 125708).

Life cycle and mating behavior Könsmognad | Reproduktion | Lek | 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 referenser | Koordinator | Medarbetare

Pierrot-Bultz, A. 2004 Chaetognatha of the world: Sagita oceanica. Zoological Museum, University of Amsterdam. http://species-identification.org/species.php?species_group=chaetognatha&selected=beschrijving&menuentry=soorten&id=98 [Accessed 27/11/14]. (Ref. 3682)

IUCN Red List Status (Ref. 130435: Version 2025-1)

  Not Evaluated 

CITES status (Ref. 108899)

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

Human uses


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Ytterligare information

Trophic Ecology
Food items (preys)
Födosammansättning
Födointag
Predatorer
Ekologi
Ekologi
Population dynamics
Tillväxt
Max. ages / sizes
Length-weight rel.
Length-length rel.
Length-frequencies
Mass conversion
Abundans
Life cycle
Reproduktion
Könsmognad
Fecundity
Lek
Eggs
Egg development
Larvae
Distribution
Länder
FAO områden
Ekosystem
Förekomster
Utplanteringar
Physiology
Syreförbrukning
Human Related
Stamps, coins, misc.
Outreach
Medarbetare
Taxonomy
Populärnamn
synonymer
Morfologi
Bilder
referenser
referenser

Internet-källor

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, sök) | Zoological Record

Estimates based on models

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

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