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Related species
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Ensis - Species in
Pharidae - - Classification -
- Pharidae
- Adapedonta
- Bivalvia
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Ensis directus Conrad, 1843
American jack knife clam| Native range | All suitable habitat | Point map | Year 2050 |
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| This map was computer-generated and has not yet been reviewed. |
| Ensis directus AquaMaps Data sources: GBIF OBIS |
Classification / Names Populärnamn | synonymer | CoL | ITIS | WoRMS
Bivalvia | Adapedonta | Pharidae
Environment: milieu / climate zone / djupintervall / distribution range Ekologi
; brackvatten; djupintervall 0 - 73 m (Ref. 104365). Temperate, preferred 12°C (Ref. 107945); 46°N - 18°N, 91°W - 59°W
Distribution Länder | FAO områden | Ekosystem | Förekomster | Utplanteringar
Western Atlantic Ocean: from Nova Scotia, Canada to Florida and southern Gulf of Mexico to Campeche, Mexico. Introduced in the Northeast Atlantic from UK (England and Wales), the North Sea to southern Norway and southern Baltic Sea to Spain in the southern Bay of Biscay. Tropical to temperate.
Length at first maturity / Size / Weight / Age
Könsmognad: Lm ? range ? - ? cm Max length : 26.0 cm TL hane/ej könsbestämd; (Ref. 7726)
Comprise communities and assemblages throughout the Mid-Atlantic Bight (Ref. 80354). Inhabits littoral and sublittoral sediment (Ref. 1314). Found in areas influenced by estuarine outflows (Ref. 96507). Swims backward (Ref. 80328).
Life cycle and mating behavior Könsmognad | Reproduktion | Lek | 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
referenser | Koordinator | Medarbetare
Harvey-Clark, C. 1997. (Ref. 7726)
IUCN Red List Status
(Ref. 130435: Version 2024-2)
CITES status (Ref. 108899)
Not Evaluated
CMS (Ref. 116361)
Not Evaluated
Threat to humans
Human uses
Fiskeri: kommersiell
FAO - fiskeri: landings | FishSource | Sea Around Us
Verktyg
Ytterligare information
Trophic Ecology
Ekologi
Population dynamics
Tillväxt
Max. ages / sizes
Length-weight rel.
Length-length rel.
Length-frequencies
Mass conversion
Rekrytering
Abundans
Max. ages / sizes
Length-weight rel.
Length-length rel.
Length-frequencies
Mass conversion
Rekrytering
Abundans
Life cycle
Distribution
Human Related
Aquaculture profiles
Stamps, coins, misc.
Stamps, coins, misc.
Outreach
Taxonomy
referenser
Internet-källor
BHL | BOLD Systems | CISTI | DiscoverLife | FAO(fiskeri: ; publication : search) | Fishipedia | GenBank (genome, nucleotide) | GloBI | Gomexsi | Google Books | Google Scholar | Google | PubMed | Tree of Life | Wikipedia (Go, sök) | Zoological Record
Estimates based on models
Preferred temperature
(Ref. 115969): 4.1 - 26, mean 9.7 (based on 362 cells).
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.