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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Ensis directus

Classification / Names आम नाम | उपशब्द | CoL | ITIS | WoRMS

Bivalvia | Adapedonta | Pharidae

Environment: milieu / climate zone / गहराई सीमा / distribution range पारिस्थितिकी

; खारा; गहराई सीमा 0 - 73 m (संदर्भ 104365).  Temperate, preferred 12°C (संदर्भ 107945); 46°N - 18°N, 91°W - 59°W

Distribution देश | ऐफ ऐ ओ क्षेत्र | Ecosystems | संयोग | भूमिका

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 / आकार / Weight / Age

परिपक्व अवधि: Lm ?  range ? - ? cm Max length : 26.0 cm TL पुल्लिंग / अलिंग; (संदर्भ 7726)

जीवविज्ञान     शब्द संग्रह (उदाहरणार्थ 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 परिपक्व अवधि | पुनरुत्पत्ति | मछलीऔ का अंडे देना | 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 संदर्भ | संयोजक | सहयोगीयो

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

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

  Not Evaluated 

CITES status (संदर्भ 108899)

Not Evaluated

CMS (संदर्भ 116361)

Not Evaluated

Threat to humans

Human uses

मात्स्यिकी: व्यापारिक
FAO - मात्स्यिकी: landings | FishSource | Sea Around Us

साधन

E-book | कार्यक्षेत्र पथप्रदर्शक

अधिक जानकारी

Trophic Ecology
Food items (preys)
संघटक आहार
आहार खपत
परभक्षी
पारिस्थितिकी
पारिस्थितिकी
Population dynamics
बाढ़
Max. ages / sizes
Length-weight rel.
Length-length rel.
Length-frequencies
Mass conversion
बहुतायत
Life cycle
पुनरुत्पत्ति
परिपक्व अवधि
Fecundity
मछलीऔ का अंडे देना
Eggs
Egg development
Larvae
Distribution
देश
ऐफ ऐ ओ क्षेत्र
Ecosystems
संयोग
भूमिका
Physiology
Oxygen consumption
Human Related
Stamps, coins, misc.
Outreach
सहयोगीयो
Taxonomy
आम नाम
उपशब्द
आकृति विज्ञान
तस्वीरे
संदर्भ
संदर्भ

इंटरनेट स्रोत

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

Estimates based on models

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