Protula pacifica   Pixell, 1912

White-crowned calcareous tubeworm
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Classification / Names Common names | Synonyms | CoL | ITIS | WoRMS

Polychaeta | Sabellida | Serpulidae

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

.  Temperate

Distribuzione Stati | Aree FAO | Ecosystems | Presenze | Introduzioni

Northeast Pacific: Alaska, USA and Canada.

Length at first maturity / Size / Peso / Age

Maturity: Lm ?  range ? - ? cm

Biologia     Glossario (es. epibenthic)

Life cycle and mating behavior Maturità | Riproduzione | Deposizione | Uova | Fecundity | Larve

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 Bibliografia | Coordinatore | Collaboratori

Lamb, A., D. Gibbs and C. Gibbs. 2011. (Ref. 93817)

IUCN Red List Status (Ref. 130435: Version 2024-1)


CITES status (Ref. 108899)

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

  Harmless

Human uses


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Strumenti

Informazioni ulteriori

Trophic Ecology
Prede
Dieta
Consumo di cibo
Razione
Predatori
Ecology
Ecologia
Home ranges
Population dynamics
Accrescimento
Age/Size
Length-weight
Length-length
Length-frequencies
Mass conversion
Reclutamento
Abbondanza
Life cycle
Riproduzione
Maturità
Fecundity
Deposizione
Uova
Egg development
Larve
Dinamica popolazioni larvali
Distribution
Stati
Aree FAO
Ecosystems
Presenze
Introduzioni
Human Related
Profilo di acquacoltura
Stamps, Coins Misc.
Outreach
Taxonomy
References

Fonti Internet

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, ricerca) | Zoological Record

Estimates based on models