Polychaeta |
Spionida |
Spionidae
Environment: milieu / climate zone / depth range / distribution range
Ecology
Benthic; depth range 0 - 300 m (Ref. 107990). Tropical
Western Indian Ocean, Atlantic Ocean and the Mediterranean Sea: Central America to northern Brazil.
Length at first maturity / Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Found in a variety of calcareous substrata such as on encrusting coralline algae, in the sponge Aulospongus tubulatus, the coral Leptastrea purpurea, hydrozoan Millepora complanata, in shells of living or dead mollusks, in bryozoan crusts and in coral fragments (Ref. 107991).
Life cycle and mating behavior
Maturity | Reproduction | Spawning | 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.
Bisby, F.A., M.A. Ruggiero, K.L. Wilson, M. Cachuela-Palacio, S.W. Kimani, Y.R. Roskov, A. Soulier-Perkins and J. van Hertum. 2005. (Ref. 19)
IUCN Red List Status
(Ref. 130435: Version 2024-2)
CITES status (Ref. 108899)
Not Evaluated
Not Evaluated
Threat to humans
Human uses
| FishSource |
Tools
More information
Trophic EcologyFood itemsDiet compositionFood consumptionFood rationsPredators Population dynamicsGrowth
Max. ages / sizes
Length-weight rel.
Length-length rel.
Length-frequencies
Mass conversion
Recruitment
Abundance
Life cycleReproductionMaturityFecunditySpawningEggsEgg developmentLarvaeLarval dynamics Human RelatedAquaculture profiles
Stamps, coins, misc.
Internet sources
Estimates based on models
Preferred temperature
(Ref.
115969): 13.4 - 27, mean 18.2 (based on 293 cells).
Price category
Unknown.