Polychaeta | 
Spionida | 
Spionidae
			
			
			
				Environment: milieu / climate zone / djupintervall / distribution range				
				
					Ekologi				
				
			
			
				;  djupintervall 200 - 1500 m (Ref. 75621).  Tropical			
			
			
				
			
			
			
				Northeast Pacific and Atlantic Ocean:  North Sea and Central America to northern Brazil.
			
			
			
			
			
				Length at first maturity / Size / Weight / Age
			
			
				Könsmognad: Lm ?  range ? - ? cm Max length : 3.0 cm TL hane/ej könsbestämd; (Ref. 75621)			
			
			
						
			
			
			
			
				
					Known as suspension feeder and discretely mobile (Ref. 75621).				
			
			
			
			
			
				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.				
			
			
			
			
			
				Salazar-Vallejo, S.I. 1996 Lista de species y bibliografía de Poliquetos (Polychaeta) del Gran Caribe. Anales Inst. Biol. Univ. nac. Autón, México, Ser. Zool. 67(1):11-50. (Ref. 7866)
			
			
			
			
			
			
			
					
						IUCN Red List Status    
						 (Ref. 130435: Version 2025-1)
					
					
					
				
			
			
			
			
				CITES status   (Ref. 108899)
			
			
				
					Not Evaluated				
			
			
			
			
			
			
				
					Not Evaluated				
			
			
			
			
			
				Threat to humans  
			
			
				
									
			
			
			
			
			
			
			
			
				Human uses  
			
			
							
			
			
				 | FishSource | 			
			
			
			
			
			
Verktyg
			
			
			
			
				
					Ytterligare information				
				
					 Trophic EcologyFood items (preys)FödosammansättningFödointagPredatorer   Population dynamicsTillväxtMax. ages / sizesLength-weight rel.Length-length rel.Length-frequenciesMass conversionAbundans   PhysiologySyreförbrukning
  Human RelatedStamps, coins, misc.
  				 
			 
			
			
			
				Internet-källor
			
			
			
			
			
				Estimates based on models
			
			
			
									
						Preferred temperature  					
				 (Ref. 
115969): 1.2 - 9.5, mean 3.8 (based on 340 cells).			
 
			
			
			
			
			
						
							
				
					
						Fishing Vulnerability  					
					
					
						Low vulnerability (10 of 100).