Polychaeta |
Canalipalpata |
Sternaspidae
Environment: milieu / climate zone / ระดับความลึก / distribution range
นิเวศวิทยา
; กร่อย; ระดับความลึก 6 - 181 m (อ้างอิง 112705). Tropical
Arctic, Indo-Pacific, Atlantic, Adriatic, Mediterranean and Antarctic Atlantic: Central America to northern Brazil and Canadian Arctic Archipelago. Tropical to polar.
Length at first maturity / ขนาด / Weight / Age
วัยเจริญพันธุ์: Lm ?  range ? - ? cm
Minimum depth from Ref. 127093. In well sorted sediments mainly composed of coarse to fine sand (Ref. 127093). A subsurface deposit-feeder (Refs. 96292, 96498). Surface deposit feeder (Ref. 108299). Motile burrower that uses an unarmed pharynx for feeding (Ref. 125872).
Life cycle and mating behavior
วัยเจริญพันธุ์ | การสืบพันธุ์ | การวางไข่ | Eggs | ความดกของไข่ | 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.
Salazar-Vallejo, S.I. and M.H. Londoño-Mesa 2004 Lista de especies y bibliografía de poliquetos (Polychaeta) del Pacífico Oriental Tropical. Anales del Instituto de Biología, Universidad Nacional Autónoma de México, Serie Zoología 75(1):9-97. (อ้างอิง 8159)
IUCN Red List Status
(อ้างอิง 130435: Version 2025-1)
CITES status (อ้างอิง 108899)
Not Evaluated
CMS (อ้างอิง 116361)
Not Evaluated
Threat to humans
Human uses
| FishSource |
เครื่องมือ
ข้อมูลเพิ่มเติม
Population dynamicsการเจริญเติบโตMax. ages / sizesLength-weight rel.Length-length rel.Length-frequenciesMass conversionอุดมสมบรูณ์ Life cycleการสืบพันธุ์วัยเจริญพันธุ์ความดกของไข่การวางไข่EggsEgg developmentLarvae Human RelatedStamps, coins, misc.
แหล่งที่มาจากอินเตอร์เน็ต
Estimates based on models
Preferred temperature
(Ref.
115969): 0.7 - 11, mean 4.5 (based on 1805 cells).
Price category
Unknown.