Bivalvia | 
Venerida | 
Mactridae
			
			
			
				Environment: milieu / climate zone / depth range / distribution range				
				
					Ecology				
				
			
			
				Benthic; depth range 0 - 70 m (Ref. 83435).  Temperate, preferred 10°C (Ref. 107945)			
			
			
				
			
			
			
				Western Atlantic Ocean.
			
			
			
			
			
				Length at first maturity / Size / Weight / Age
			
			
				Maturity: Lm ?, range 5 -  8.5 cm Max length : 20.0 cm SHL male/unsexed; (Ref. 7726); max. reported age: 31 years (Ref. 8702)			
			
			
						
			
			
			
			
				
					Inhabits the shallow continental shelf (Ref. 106944).  Suspension feeder (Ref. 78574).				
			
			
			
			
			
				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.				
			
			
			
			
			
				Harvey-Clark, C. 1997 Eastern tidepool and reef: north-central Atlantic marinelife guide. Hancock House Publishers, 64pp. (Ref. 7726)
			
			
			
			
			
			
			
					
						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, species profile | FishSource | Sea Around Us			
			
			
			
			
			
Tools
			
			
			
			
				
					More information				
				
					 Trophic EcologyFood items (preys)
Diet composition
Food consumption
Predators
  PhysiologyOxygen consumption
  Human RelatedStamps, coins, misc.
  
			 
			
			
			
				Internet sources
			
			
			
			
			
				Estimates based on models
			
			
			
									
						Preferred temperature  					
				 (Ref. 
115969): 6.2 - 24.6, mean 23.5 (based on 274 cells).			
 
			
			
			
							
					Resilience  				
				
				
					Medium, minimum population doubling time 1.4 - 4.4 years (K=0.23-0.36; tm=2; tmax=31).				
			
			
							
					 Prior r = 0.53, 95% CL = 0.35 - 0.80, Based on 1 full stock assessment.				
						
							
				
					
						Fishing Vulnerability  					
					
					
						Moderate to high vulnerability (50 of 100).					
				
						
							
					
						Climate Vulnerability  					
					
					High vulnerability (60 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.