Gould Beanclam

Donax gouldii

Gould beanclams are small bivalve mollusks that can reach lengths of up to one inch. Their shells exhibit a variety of colors, including cream, buff, orange, and blue, often marked with darker rays near the hinge. These clams are found along the Pacific coast of North America, specifically from Pismo Beach in California to Arroyo del Conejo in Baja California Sur. They inhabit sandy shores, typically in the mid-intertidal zone and can be found at depths of up to 30 meters. Their populations can fluctuate dramatically, with densities sometimes reaching 20,000 clams per square meter before experiencing significant die-offs due to parasitic infections. Gould beanclams primarily feed by filtering phytoplankton and detritus from the water. They have a life span of 1 to 3 years and reproduce through a process where embryos develop into free-swimming larvae before settling to the ocean floor. Encounters with these clams while diving can be common, especially in areas where they proliferate, such as Redondo Beach and Newport Beach. The conservation status of the Gould beanclam has not been evaluated by the IUCN, and there is no specific information regarding their rarity. However, their population dynamics suggest that they can experience rapid changes in abundance due to environmental factors.