Theora fragilis, Fragile semele
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Theora fragilis   (Adams, 1856)

Fragile semele
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drawing shows typical species in Semelidae.

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

Bivalvia | Cardiida | Semelidae

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

Benthic, usually 0 - 50 m (Ref. 75831).  Subtropical

Distribution Countries | FAO areas | Ecosystems | Occurrences | Introductions

Western Pacific.

Length at first maturity / Size / Weight / Age

Maturity: Lm ?  range ? - ? cmmax. reported age: 2.00 years (Ref. 8702)

Biology     Glossary (e.g. epibenthic)

Found intertidal in mud (Ref. 53).

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.

Main reference References | Coordinator | Collaborators

Yang, J., A. Gao, X. Ning and D. Zhang 2007 Characteristics of macrofauna and their response to aquiculture in Yueqing Bay, China. Acta Ecologica Sinica 27(1):34-41. (Ref. 77800)

IUCN Red List Status (Ref. 130435: Version 2025-1)

  Not Evaluated 

CITES status (Ref. 108899)

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

Human uses


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Trophic Ecology
Food items (preys)
Diet composition
Food consumption
Predators
Ecology
Ecology
Population dynamics
Growth
Max. ages / sizes
Length-weight rel.
Length-length rel.
Length-frequencies
Mass conversion
Abundance
Life cycle
Reproduction
Maturity
Fecundity
Spawning
Eggs
Egg development
Larvae
Distribution
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FAO areas
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Occurrences
Introductions
Physiology
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Human Related
Stamps, coins, misc.
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Common names
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References
References

Internet sources

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

Estimates based on models

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