Polychaeta | 
Not assigned | 
Scalibregmatidae
			
			
			
				Environment: milieu / climate zone / ระดับความลึก / distribution range				
				
					นิเวศวิทยา				
				
			
			
				;  ระดับความลึก 0 - 2400 m (อ้างอิง 119523).  Polar			
			
			
				
			
			
			
				Arctic, Indo-Pacific, Atlantic and the Antarctic.  Tropical to polar.
			
			
			
			
			
				Length at first maturity / ขนาด / Weight / Age
			
			
				วัยเจริญพันธุ์: Lm ?  range ? - ? cm Max length : 8.0 cm TL เพศผู้/กระเทย; (อ้างอิง 75621)			
			
			
						
			
			
			
			
				
					Length based on occurrence; to be replaced with better reference. Found along the sub-littoral zone, on sandbanks, and muddy bottoms associated with organic pollutants.  A subsurface deposit-feeder (Refs. 96352, 96501).  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.				
			
			
			
			
			
				Harms, J. 1993 Check list of species (algae, invertebrates and vertebrates) found in the vicinity of the island of Helgoland (North Sea, German Bight) - a review of recent records. Helgoländer Meeresunters 47:1-34. (อ้างอิง 2711)
			
			
			
			
			
			
			
					
						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				
				
					 Life cycleการสืบพันธุ์วัยเจริญพันธุ์ความดกของไข่การวางไข่EggsEgg developmentLarvae   Human RelatedStamps, coins, misc.
  
			 
			
			
			
				แหล่งที่มาจากอินเตอร์เน็ต
			
			
			
			
			
				Estimates based on models
			
			
			
									
						Preferred temperature  					
				 (Ref. 
115969): 0.9 - 10.6, mean 5.5 (based on 216 cells).			
 
			
			
			
			
			
						
							
				
					
						Fishing Vulnerability  					
					
					
						Low vulnerability (10 of 100).					
				
						
						
			
									
						Price category  					
					
					Unknown.