Polychaeta | 
Aciculata | 
Myzostomidae
			
			
			
				Environment: milieu / climate zone / গভীরতার পরিসীমা  / distribution range				
				
					বাস্তুসংস্থান				
				
			
			
				.  Polar			
			
			
				
			
			
			
				Antarctic Indian Ocean:  Kerguelen.
			
			
			
			
			
				Length at first maturity / আকৃতি  / Weight / Age
			
			
				পরিপক্কতা : Lm ?  range ? - ? cm			
			
			
						
			
			
			
			
				
									
			
			
			
			
			
				Life cycle and mating behavior				
					পরিপক্কতা  | প্রজনন  | ডিম ছাড়া  | Eggs | ডিম্বধারন ক্ষমতা  | 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.				
			
			
			
			
			
				von Graff, L. 1884 Report on the Myzostomida collected during the voyage of H.M.S. Challenger during the years 1873-1876. In Report of the scientific results of the voyage of H.M.S. Challenger during the years 1873-76: a summary of the scientific results, Zoology 10:1-82. (সূত্র  2529)
			
			
			
			
			
			
			
					
						IUCN Red List Status    
						 (সূত্র  130435: Version 2025-1)
					
					
					
				
			
			
			
			
				CITES status   (সূত্র  108899)
			
			
				
					Not Evaluated				
			
			
			
			
			
			
				
					Not Evaluated				
			
			
			
			
			
				Threat to humans  
			
			
				
					  Harmless				
			
			
			
			
			
			
			
			
				Human uses  
			
			
							
			
			
				 | FishSource | 			
			
			
			
			
			
হাতিয়ার 
			
			
			
			
				
					আরো তথ্য 				
				
					 ট্রফিক বাস্তুতন্ত্র Food items (preys)
পথ্য উপাদান
খাদ্য  গ্রহণ
শিকারী প্রাণী সমূহ
  Population dynamicsবৃদ্ধি
Max. ages / sizes
Length-weight rel.
Length-length rel.
Length-frequencies
Mass conversion
প্রাচুর্য 
  Life cycleপ্রজনন পরিপক্কতা ডিম্বধারন ক্ষমতা ডিম ছাড়া EggsEgg developmentLarvae   Physiologyঅম্লজান ব্যবহার 
  Human RelatedStamps, coins, misc.
  
			 
			
			
			
				ইন্টারনেট সুত্র 
			
			
			
			
			
				Estimates based on models