Bivalvia | 
Venerida | 
Mactridae
			
			
			
				Environment: milieu / climate zone / depth range / distribution range				
				
					Ecology				
				
			
			
				Benthic; depth range 0 - 60 m (Ref. 106944).  Subtropical, preferred 10°C (Ref. 107945); 65°N -   32°N, 24°W -   12°E			
			
			
				
			
			
			
				Eastern Atlantic and the Mediterranean:  From southern Iceland to North Sea, Morocco and Madeira to the Mediterranean.
			
			
			
			
			
				Length at first maturity / Size / Weight / Age
			
			
				Maturity: Lm ?  range ? - ? cm Max length : 5.0 cm SHL male/unsexed; (Ref. 7882); max. reported age: 13 years (Ref. 106244)			
			
			
						
			
			
			
			
				
					Depth based on occurrence (Ref. 2758, p. 805); to be replaced with better reference.  Minimum depth from Ref. 2703.  Species' maximum length from the Belgian part of the North Sea (Ref. 7882). Found along the coasts and further out into the open sea, mainly on top of sea banks.  Shallowly burrows in coarse-grained sediment.   A suspension feeder (Ref. 7882).				
			
			
			
			
			
				Life cycle and mating behavior				
					Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae				
			
			
				
					Members of the class Bivalvia are mostly gonochoric, some are protandric hermaphrodites.  Life cycle:  Embryos develop into free-swimming trocophore larvae, succeeded by the bivalve veliger, resembling a miniature clam.				
			
			
			
			
			
				Gaspar, M.B., M.N. Santos and P. Vasconcelos 2001 Weight-length relationships of 25 bivalve species (Mollusca: Bivalvia) from the Algarve coast (southern Portugal). J. Mar. Biol. Ass. U.K. 81:805-807. (Ref. 2758)
			
			
			
			
			
			
			
					
						IUCN Red List Status    
						 (Ref. 130435: Version 2025-1)
					
					
					
				
			
			
			
			
				CITES status   (Ref. 108899)
			
			
				
					Not Evaluated				
			
			
			
			
			
			
				
					Not Evaluated				
			
			
			
			
			
				Threat to humans  
			
			
				
									
			
			
			
			
			
			
			
			
				Human uses  
			
			
				Fisheries: commercial			
			
			
				FAO - Fisheries: landings | FishSource | Sea Around Us			
			
			
			
			
			
Tools
			
			
			
			
				
					More information				
				
					 PhysiologyOxygen consumption
  Human RelatedStamps, coins, misc.
  
			 
			
			
			
				Internet sources
			
			
			
			
			
				Estimates based on models
			
			
			
									
						Preferred temperature  					
				 (Ref. 
115969): 8.6 - 12.5, mean 10.4 (based on 344 cells).			
 
			
			
			
							
					Resilience  				
				
				
					High, minimum population doubling time less than 15 months (K=0.23-0.43; tm=1; tmax=13).				
			
			
						
							
				
					
						Fishing Vulnerability  					
					
					
						Moderate vulnerability (37 of 100).					
				
						
							
					
						Climate Vulnerability  					
					
					High to very high vulnerability (71 of 100).				
						
			
			
			
				Nutrients  :  Calcium = 149 [71, 228]  mg/100g; Iron = 8.53 [1.95, 15.11]  mg/100g; Protein = 9.88 [8.64, 11.12] %; Omega3 = 0.313 [0.202, 0.423]  g/100g; Selenium = 61 [50, 72]  μg/100g; VitaminA = 0 μg/100g; Zinc = 2.04 [0.56, 3.51]  mg/100g (wet weight); based on 
nutrient studies.