Bivalvia | 
Cardiida | 
Semelidae
			
			
			
				Environment: milieu / climate zone / depth range / distribution range				
				
					Ecology				
				
			
			
				Benthic; depth range 7 - 9 m (Ref. 2851).  Subtropical, preferred 8°C (Ref. 107945); 69°N -   12°N, 18°W -   60°E			
			
			
				
			
			
			
				Western Indian Ocean, Northeast Atlantic and the Mediterranean.
			
			
			
			
			
				Length at first maturity / Size / Weight / Age
			
			
				Maturity: Lm ?, range 2 - ? cm Max length : 6.5 cm SHL male/unsexed; (Ref. 109255); max. reported age: 18 years (Ref. 101483)			
			
			
						
			
			
			
			
				
					Depth based on occurrence (Ref. 2851, p. 719); to be replaced with better reference. Found in intertidal mudflats (Ref. 2823).				
			
			
			
			
			
				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 (Ref. 833).				
			
			
			
			
			
				Alves, F., L. Chicharo, A. Nogueira and J. Regala 2003 Changes in benthic community structure due to clam dreging on the Algarve coast and the importance of seasonal analysis. J. Mar. Biol. Ass. U.K. 83:719-729. (Ref. 2851)
			
			
			
			
			
			
			
					
						IUCN Red List Status    
						 (Ref. 130435: Version 2025-1)
					
					
					
				
			
			
			
			
				CITES status   (Ref. 108899)
			
			
				
					Not Evaluated				
			
			
			
			
			
			
				
					Not Evaluated				
			
			
			
			
			
				Threat to humans  
			
			
				
									
			
			
			
			
			
			
			
			
				Human uses  
			
			
				Fisheries: commercial			
			
			
				 | FishSource | Sea Around Us			
			
			
			
			
			
Tools
			
			
			
			
				
					More information				
				
					 PhysiologyOxygen consumption
  Human RelatedStamps, coins, misc.
  
			 
			
			
			
				Internet sources
			
			
			
			
			
				Estimates based on models
			
			
			
									
						Preferred temperature  					
				 (Ref. 
115969): 8.2 - 18.8, mean 11.3 (based on 569 cells).			
 
			
			
			
							
					Resilience  				
				
				
					High, minimum population doubling time less than 15 months (K=0.2-0.51; tm=2.5; tmax=18).				
			
			
						
							
				
					
						Fishing Vulnerability  					
					
					
						Moderate vulnerability (39 of 100).					
				
						
							
					
						Climate Vulnerability  					
					
					High vulnerability (58 of 100).				
						
			
									
						Price category  					
					
					Unknown.			
			
			
				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.