Polychaeta | 
Aciculata | 
Myzostomidae
			
			
			
				Environment: milieu / climate zone / Mức độ sâu / distribution range				
				
					Sinh thái học				
				
			
			
				;  Mức độ sâu 49 - 567 m (Tài liệu tham khảo 3249).  Polar			
			
			
				
			
			
			
				Antarctica.
			
			
			
			
			
				Length at first maturity / Bộ gần gũi / Weight / Age
			
			
				Chín muồi sinh dục: Lm ?  range ? - ? cm Max length : 0.2 cm WD con đực/không giới tính; (Tài liệu tham khảo )			
			
			
						
			
			
			
			
				
					Maximum length based from disc diameter, right and left caudal processes (omitting terminal cirri) .244 and .312 cm long, respectively.				
			
			
			
			
			
				Life cycle and mating behavior				
					Chín muồi sinh dục | Sự tái sinh sản | Đẻ trứng | Eggs | Sự sinh sản | 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.				
			
			
			
			
			
				Grygier, M.J. 1989 Three new species of Myzostoma (Myzostomida). Proceedings of the Biological Society of Washington 102(3):793-804. (Tài liệu tham khảo 3249)
			
			
			
			
			
			
			
					
						IUCN Red List Status    
						 (Tài liệu tham khảo 130435: Version 2025-1)
					
					
					
				
			
			
			
			
				CITES status   (Tài liệu tham khảo 108899)
			
			
				
					Not Evaluated				
			
			
			
			
			
				CMS (Tài liệu tham khảo 116361)
			
			
				
					Not Evaluated				
			
			
			
			
			
				Threat to humans  
			
			
				
					  Harmless				
			
			
			
			
			
			
			
			
				Human uses  
			
			
							
			
			
				 | FishSource | 			
			
			
			
			
			
Các công cụ
			
			
			
			
				
					Thêm thông tin				
				
					 Sinh thái dinh dưỡngFood items (preys)
Thành phần thức ăn
Thành phần thức ăn
Các động vật ăn mồi
  Population dynamicsSự sinh trưởng
Max. ages / sizes
Length-weight rel.
Length-length rel.
Length-frequencies
Mass conversion
Sự phong phú
  Life cycleSự tái sinh sảnChín muồi sinh dụcSự sinh sảnĐẻ trứngEggsEgg developmentLarvae   PhysiologyThành phần ô-xy
  Human RelatedStamps, coins, misc.
  
			 
			
			
			
				Các nguồn internet
			
			
			
			
			
				Estimates based on models
			
			
			
									
						Preferred temperature  					
				 (Ref. 
115969): -1.7 - 1, mean -0.9 (based on 184 cells).			
 
			
			
			
			
			
						
							
				
					
						Fishing Vulnerability  					
					
					
						Low vulnerability (10 of 100).