Ensis directus, American jack knife clam : fisheries
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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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Image of Ensis directus (American jack knife clam)
Ensis directus

رده بندی / Names اسامي عام | مترادف | CoL | ITIS | WoRMS

Bivalvia | Adapedonta | Pharidae

Environment: milieu / climate zone / تغييرات عمق / distribution range بوم شناسي

; لب شور; تغييرات عمق 0 - 73 m (مرجع 104365).  Temperate, preferred 12°C (مرجع 107945); 46°N - 18°N, 91°W - 59°W

Distribution كشورها | مناطق سازمان خوار و بار جهاني (FAO) | Ecosystems | ظهور | معرفي

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 / سن

بلوغ: Lm ?  range ? - ? cm Max length : 26.0 cm TL جنس نر / بدون خواص جنسي; (مرجع 7726)

زيست شناسي     واژه نامه (بعنوان مثال 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 بلوغ | تولید مثل | تخم ریزی | 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.

مآخذ اصلی مراجع | هماهنگ كننده | همكاران

Harvey-Clark, C. 1997 Eastern tidepool and reef: north-central Atlantic marinelife guide. Hancock House Publishers, 64pp. (مرجع 7726)

وضعيت در فهرست قرمز IUCN (مرجع 130435: Version 2025-1)

  غيرقابل ارزيابی 

وضعيت از نظر سايتس (مرجع 108899)

Not Evaluated

CMS (مرجع 116361)

Not Evaluated

خطر برای انسان ها

استفاده انسانی

ماهي گيري – شيلات: تجاري
FAO - ماهي گيري – شيلات: landings | FishSource | Sea Around Us

ابزارها

E-book | راهنماي صحرايي

اطلاعات بيشتر

Trophic Ecology
Food items (preys)
تركيب غذايي
مصرف غذايي
شکارچیان
بوم شناسي
بوم شناسي
Population dynamics
رشد
Max. ages / sizes
Length-weight rel.
Length-length rel.
نوسانات طولی
Mass conversion
فراواني
Life cycle
تولید مثل
بلوغ
Fecundity
تخم ریزی
Eggs
نمو تخم
Larvae
Distribution
كشورها
مناطق سازمان خوار و بار جهاني (FAO)
Ecosystems
ظهور
معرفي
Physiology
Oxygen consumption
Human Related
Stamps, coins, misc.
Outreach
همكاران
Taxonomy
اسامي عام
مترادف
ريخت شناسي
عکس ها
مراجع
مراجع

منابع اينترنتي

BHL | BOLD Systems | CISTI | DiscoverLife | FAO(ماهي گيري – شيلات: ; publication : search) | Fishipedia | GenBank (ژنوم, نوکلئوتيد) | GloBI | Gomexsi | Google Books | Google Scholar | Google | PubMed | Tree of Life | Wikipedia (برو, جستجو) | Zoological Record

Estimates based on models

Preferred temperature (Ref. 115969): 4.1 - 26, mean 9.7 (based on 362 cells).
Fishing Vulnerability (مرجع 71543): Low vulnerability (16 of 100).
Climate Vulnerability (مرجع 125649): Very high vulnerability (76 of 100).
طبقه قيمت (مرجع 80766): Low.
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.

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