Tresus nuttallii
Tresus nuttallii (Conrad, 1837)
Pacific gaper
Tresus nuttallii
photo by Coltro, Marcus

Family:  Mactridae (trough shells)
Max. size:  25.4 cm SHL (male/unsexed); max. reported age: 17 years
Environment:  benthic; marine; depth range 0 - 50 m
Distribution:  Eastern Pacific: from Alaska to Baja California, Mexico.
Diagnosis:   
Biology:  It burrows in sand and mud along the intertidal zone from shallow depths to 30 meters (Ref. 865). Prefers sandier areas. Buries deep in the substrate to avoid freezing (Ref. 95344). Feeds on phytoplankton and detritus (Ref. 95991).
IUCN Red List Status: Not Evaluated (N.E.) Ref. 123251)
Threat to humans: 
Country info:   
 

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