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Tivela stultorum   (Mawe, 1823)

Pismo clam

Native range | All suitable habitat | Point map | Year 2100
This map was computer-generated and has not yet been reviewed.
Tivela stultorum  AquaMaps  Data sources: GBIF OBIS
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drawing shows typical species in Veneridae.

Classification / Names Common names | Synonyms | CoL | ITIS | WoRMS

Bivalvia | Venerida | Veneridae

Environment: milieu / climate zone / depth range / distribution range Ecology

Benthic; depth range 7 - 150 m (Ref. 101604), usually 10 - 25 m (Ref. 101635).  Tropical; 38°N - 18°N, 123°W - 109°W

Distribution Countries | FAO areas | Ecosystems | Occurrences | Introductions

Eastern Pacific: Socorro Island, Mexico to Santa Cruz, California, USA.

Length at first maturity / Size / Weight / Age

Maturity: Lm ?, range 2 - 3.1 cm Max length : 15.0 cm SHL male/unsexed; (Ref. 101635)

Short description Morphology

The shell is strong, heavy, and generally smooth though sculptured with fine concentric growth lines; beak nearly central; ligament obvious, elongate, set in deep groove; periostracum shiny, greenish to brownish; shell pale buff to dark chocolate, occasionally marked with brown or purple-brown bands.

Biology     Glossary (e.g. epibenthic)

Maximum depth from Ref. 101605. Filter-feeder, feeds on phyto- and zooplankton, bacteria and detritus. Its predators may include crabs, snails, gulls, sea otters, sharks, rays and some fishes (Ref. 101635).

Life cycle and mating behavior Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae

Gametogenesis begins in March or April and ripe gametes first appear in April and May. Gonadal development proceeds rapidly in June and July; spawning begins in late July or early August and continues to the end of November. Discharge of gametes appears to take place when there is a fair rise in water temperature. Males usually spawn first and their release of gametes stimulates the females to spawn. Spawning may occur several times during the season since only a portion of the gametes ripen at one time. (Ref. 101635).

Main reference References | Coordinator | Collaborators

Vakily, J.M. 1992. (Ref. 7693)

IUCN Red List Status (Ref. 127697)

CITES status (Ref. 108899)

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

Human uses

Fisheries: commercial
| FishSource |


Internet sources

BHL | BOLD Systems | CISTI | DiscoverLife | FAO(Publication : search) | GenBank (genome, nucleotide) | GloBI | Gomexsi | Google Books | Google Scholar | Google | PubMed | Tree of Life | Wikipedia (Go, Search) | Zoological Record

Estimates of some properties based on models

Preferred temperature (Ref. 115969): 13.7 - 23.2, mean 20.7 (based on 16 cells).
Vulnerability (Ref. 71543): Moderate vulnerability (43 of 100).
Price category (Ref. 80766): Medium.