Bivalvia | 
Venerida | 
Mesodesmatidae
			
			
			
				Environment: milieu / climate zone / depth range / distribution range				
				
					Ecology				
				
			
			
				Benthic; depth range 6 - 8 m (Ref. 113273).  Subtropical, preferred 20°C (Ref. 107945); 33°S -   48°S, 166°E -   175°W			
			
			
				
			
			
			
				Southwest Pacific:  New Zealand and Chatham Island.
			
			
			
			
			
				Length at first maturity / Size / Weight / Age
			
			
				Maturity: Lm ?  range ? - ? cm Max length : 8.0 cm SHL male/unsexed; (Ref. 101438)			
			
			
						
			
			
			
			
				
					Intertidal, common near the mouths of estuaries.   Inhabits coarser sediments.  Suspension feeder with short siphons, living near the sediment surface (Ref. 106920).				
			
			
			
			
			
				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.				
			
			
			
			
			
				SAUP Database 2006 SAUP Database. www.seaaroundus.org. (Ref. 356)
			
			
			
			
			
			
			
					
						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				
				
					 Trophic EcologyFood items (preys)
Diet composition
Food consumption
Predators
  Life cycleReproductionMaturityFecunditySpawningEggsEgg developmentLarvae   PhysiologyOxygen consumption
  Human RelatedStamps, coins, misc.
  
			 
			
			
			
				Internet sources
			
			
			
			
			
				Estimates based on models
			
			
			
							
			
			
			
							
					Resilience  				
				
				
					Medium, minimum population doubling time 1.4 - 4.4 years (K=0.16).				
			
			
						
							
				
					
						Fishing Vulnerability  					
					
					
						Moderate vulnerability (38 of 100).					
				
						
							
					
						Climate Vulnerability  					
					
					High to very high vulnerability (65 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.