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Ensis directus   Conrad, 1843

American jack knife clam

Native range | All suitable habitat | Point map | Year 2050
This map was computer-generated and has not yet been reviewed.
Ensis directus  AquaMaps  Data sources: GBIF OBIS
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Ensis directus


United States (contiguous states) country information

Common names: [No common name]
Occurrence: native
Salinity: marine
Abundance: | Ref:
Importance: | Ref:
Aquaculture: never/rarely | Ref:
Regulations: no regulations | Ref:
Uses: no uses
Comments: Known from the west Atlantic coasts of North America including Mexico (Ref. 1314). Cultured in Connecticut (Ref. 80340). C: Ref. 1314; O: Ref. 114889.
National Checklist:
Country Information: https://www.cia.gov/library/publications/resources/the-world-factbook/geos/us.html
National Fisheries Authority: http://www.nmfs.gov
Occurrences: Occurrences Point map
Main Ref: Hill, M., R. Baker, G. Broad, P.J. Chandler, G.H. Coop, J. Ellis, D. Jones, C. Hoyland, I. Laing, M. Longshaw, N. Moore, D. Parrott, D. Pearman, C. Preston, R.M. Smith and R. Waters, 2005
National Database:

Common names from other countries

Classification / Names / Names 俗名 | 同種異名 | Catalog of Fishes (gen., sp.) | ITIS | CoL | WoRMS

Bivalvia > Adapedonta () > Pharidae ()

Environment: milieu / climate zone / depth range / distribution range 生態學

; 半鹹淡水; 深度上下限 0 - 73 m (Ref. 104365).    , preferred 12°C (Ref. 107945); 46°N - 18°N, 91°W - 59°W

分布 國家 | FAO區域 | 生態系 | 發現紀錄 | 簡介

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 / 大小 / 重量 / 年齡

Maturity: Lm ?  range ? - ? cm Max length : 26.0 cm TL 雄魚/尚未辨別雌雄; (Ref. 7726)

生物學特性     字彙 (例如 epibenthic)

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 成熟度 | 繁殖 | 產卵場 | | 孕卵數 | 仔魚

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.

主要參考資料 參考文獻 | 合作者 | 合作者

Harvey-Clark, C. 1997. (Ref. 7726)

IUCN 瀕危狀態 (Ref. 130435)

  未評估 

CITES狀態 (Ref. 108899)

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

人類使用

漁業: 商業性
FAO - 漁業: landings | FishSource | 周邊海洋

工具

更多資訊

俗名
同種異名
捕食者
繁殖
成熟度
產卵場
孕卵數

卵發育
年龄/大小
成長
長度-重量
長度-長度
型態特徵
仔魚
豐度

網路資源

BHL | BOLD Systems | CISTI | DiscoverLife | FAO(漁業: ; publication : search) | GenBank (基因組, 核甘) | GloBI | Gomexsi | Google Books | Google Scholar | Google | PubMed | 樹狀分類階層 | Wikipedia (, 搜尋) | 動物學的記錄

Estimates based on models

Preferred temperature (Ref. 115969): 4.1 - 26, mean 9.7 (based on 362 cells).
瀕危性 (Ref. 71543): Low vulnerability (16 of 100).
價格種類 (Ref. 80766): Low.