Sigambra hanaokai

Sigambra hanaokai   (Kitamori, 1960)

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Classification / Names Populärnamn | synonymer | CoL | ITIS | WoRMS

Polychaeta | Aciculata | Pilargidae

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

.  Subtropical

Distribution Länder | FAO områden | Ekosystem | Förekomster | Utplanteringar

Northwest and Western Central Pacific: China, Hong Kong, Vietnam and Indonesia.

Length at first maturity / Size / Weight / Age

Könsmognad: Lm ?  range ? - ? cm

Biologi     Ordlista (t.ex. epibenthic)

Found in sediments with high content of silt and clay. Can also be found in coarser substrate composed of sand and gravel (Ref. 124802). Motile carnivore that has a jawed pharynx (Ref. 125872).

Life cycle and mating behavior Könsmognad | Reproduktion | Lek | Eggs | Fecundity | Larvae

Members of the class Polychaeta are mostly gonochoric (sexual). Mating: Females produce a pheromone attracting and signalling the males to shed sperm which in turn stimulates females to shed eggs, this behavior is known as swarming. Gametes are spawned through the metanephridia or body wall rupturing (termed as "epitoky", wherein a pelagic, reproductive individual, "epitoke", is formed from a benthic, nonreproductive individual, "atoke"). After fertilization, most eggs become planktonic; although some are retained in the worm tubes or burrowed in jelly masses attached to the tubes (egg brooders). Life Cycle: Eggs develop into trocophore larva, which later metamorph into juvenile stage (body lengthened), and later develop into adults.

Main reference referenser | Koordinator | Medarbetare

Zheng, Y., X. Chen, J. Chen, Y. Wang, X. Shen, W. Chen and C. Li. 2003. (Ref. 75927)

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

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.
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Taxonomy
Populärnamn
synonymer
Morfologi
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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

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