Bivalvia | 
Mytilida | 
Mytilidae
			
			
			
				Environment: milieu / climate zone / depth range / distribution range				
				
					Ecology				
				
			
			
				Benthic; depth range 0 - 50 m (Ref. 101292).  Tropical; 10°C - 30°C (Ref. 113750), preferred 26°C (Ref. 107945); 37°N -   35°S, 64°W -   82°E			
			
			
				
			
			
			
				Western Indian Ocean, Atlantic Ocean and the Mediterranean Sea:  from the southern Caribbean to Uruguay, eastern Atlantic from Portugal to Senegal, and Congo to South Africa, and in the western Indian Ocean from South Africa to Sri Lanka.  Introduced in the Gulf of Mexico.  Tropical and subtropical.
			
			
			
			
			
				Length at first maturity / Size / Weight / Age
			
			
				Maturity: Lm ?  range ? - ? cm Max length : 17.0 cm SHL male/unsexed; (Ref. 271)			
			
			
							
				
				
					
						Shell mussel-shaped, ventral margin straight, posterior end rounded.  Shell surface smooth except for fine growth lines.  Hinge 1 or 2 teeth.  Periostracum flaky.  Colour:  externally brown or light brown with concentric yellow bands near ventral margin, internally purple, nacreous.					
				
				
						
			
			
			
			
				
					It is heavily exploited commercially, stocks are dwindling in southernmost part or range.  Consumed boiled in juices, marinated, grilled with rice, or in a number of different local dishes.  Canned industrially (Ref. 271).  Minimum depth from Ref. 104365. It is attached by byssus onto hard substrates, common in high-energy rocky coasts (Ref. 271).  Feeds primarily on detritus (Ref. 114808).				
			
			
			
			
			
				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.				
			
			
			
			
			
				Carpenter, K.E. (ed.) 2002 The living marine resources of the Western Central Atlantic. Volume 1: Introduction, molluscs, crustaceans, hagfishes, sharks, batoid fishes, and chimaeras. FAO Species Identification Guide for Fishery Purposes and American Society of Ichthyologists and Herpetologists Special Publication No. 5, Rome. 600p. (Ref. 271)
			
			
			
			
			
			
			
					
						IUCN Red List Status    
						 (Ref. 130435: Version 2025-1)
					
					
					
				
			
			
			
			
				CITES status   (Ref. 108899)
			
			
				
					Not Evaluated				
			
			
			
			
			
			
				
					Not Evaluated				
			
			
			
			
			
				Threat to humans  
			
			
				
									
			
			
			
			
			
			
			
			
				Human uses  
			
			
				Fisheries: highly commercial			
			
			
				FAO - Aquaculture: production; Fisheries: landings | FishSource | Sea Around Us			
			
			
			
			
			
Tools
			
			
			
			
				
					More information				
				
					 Life cycleReproductionMaturityFecunditySpawningEggsEgg developmentLarvae   PhysiologyOxygen consumption
  Human RelatedStamps, coins, misc.
  				 
			 
			
			
			
				Internet sources
			
			
			
			
			
				Estimates based on models
			
			
			
									
						Preferred temperature  					
				 (Ref. 
115969): 14.8 - 27.8, mean 24.9 (based on 654 cells).			
 
			
			
			
							
					Resilience  				
				
				
					High, minimum population doubling time less than 15 months (K=0.06-1.5).				
			
			
						
							
				
					
						Fishing Vulnerability  					
					
					
						Low to moderate vulnerability (29 of 100).					
				
						
							
					
						Climate Vulnerability  					
					
					Moderate to high vulnerability (51 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.