Ireland country information

Common names: [No common name]
Occurrence: native
Salinity: marine
Abundance: | Ref:
Importance: | Ref:
Aquaculture: | Ref:
Regulations: | Ref:
Uses: no uses
Comments:
National Checklist:
Country Information: https://www.cia.gov/library/publications/resources/the-world-factbook/geos/ei.html
National Fisheries Authority:
Occurrences: Occurrences Point map
Main Ref: Compagno, L.J.V., 1984
National Database:

Common names from other countries

Squale liche, Carocho, Далатия (=чёрная пряморотая акула), ... more

التصنيف / Names الأسماء الشائعة | مرادفات | Catalog of Fishes(جنس, الانواع) | ITIS | CoL | WoRMS | Cloffa

أشلاق (القروش و الشفانين) (sharks and rays) > Squaliformes (Sleeper and dogfish sharks) > Dalatiidae (Sleeper sharks)
Etymology: Dalatias: Etymology not explained nor evident. A few online sources suggest Dalatias is derived from dalos (Gr.), torch or firebrand, but nothing in Rafinesque’s description supports this interpretation. Interestingly, D. licha is bioluminescent, a fact that was discovered and resported only recently and was certainly unknown to Rafinesque and other early naturalists. See: Mallefet J., D. W. Stevens, and L. Duchatelet. 2021. Bioluminescence of the largest luminous vertebrate, the kitefin shark, Dalatias licha: first insights and comparative aspects. Frontiers in Marine Science 8 (article 633582): 1-13. (See ETYFish); licha: Latinization of “La Liche” as reported by Broussonet (1780), an old French word for this shark, possibly from from the Occitan lecha or lec, meaning “glutton”. (See ETYFish).
More on author: Bonnaterre.

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

بحري قاعية المعيشة; نطاق العمق 37 - 1800 m (Ref. 247), usually 300 - 600 m (Ref. 247). Deep-water; 72°N - 56°S, 98°W - 153°W

التوزيع دول | مناطق الفاو | النظام البيئي | الظهور | Point map | مقدمة | Faunafri

Western Atlantic: Georges Bank and northern Gulf of Mexico. Eastern Atlantic: Iceland (Ref. 12462), Scotland, and Irish Atlantic slope to Morocco, western Mediterranean, Madeira to Cameroon. Western Indian Ocean: Mozambique and South Africa. Western Pacific: Japan, Australia, and New Zealand. Central Pacific: Hawaii.

Length at first maturity / الحجم / وزن / العمر

Maturity: L_m 139.0, range 117 - 159 cm
Max length : 182 cm TL ذكر/ مختلط الجنس; (Ref. 10717)

وصف مختصر مفاتيح التعريف | الوصف الخارجي | قياسات المظهر الخارجي

الأشواك الظهرية (المجموع) : 0; شوكة شرجية: 0. Moderately sized, short- and blunt-snouted shark with two almost equal-sized dorsal fins; papillose thick lips; small slender-cusped upper teeth and very large lower teeth with erect triangular serrated cusps and distal blades; first dorsal fin on back with its origin behind the pectoral rear tips and its base closer to the pectoral base than the pelvic fins; and caudal fin with the ventral lobe not expanded (Ref. 247). Dark grey-brown to black; trailing edges of fins translucent (Ref. 26346).

Found on outer continental and insular shelves and slopes (Ref. 247). Mainly found on or near the bottom but readily occurs well off the substrate (Ref. 247, 58302). Often pelagic (Ref. 58302). Found singly or in small schools (Ref. 6871). Feeds mainly on deepwater bony fish, but also skates, other sharks (etmopterids in Ref. 123656), cephalopods and crustaceans (Ref. 5578). This bioluminescent shark (currently the largest luminous vertebrate) emit light ventrally to counterilluminate which might be used to illuminate the ocean floor while searching/hunting for prey; or to stealthily approach prey, using counterillumination camouflage, before striking fast when it is close enough (Ref. 123656). Ovoviviparous (Ref. 205), with 10-20 young born at 30-42 cm (Ref. 26346). Used for its squalene liver oil, leather and meat, as well as for fishmeal (Ref. 6871).

Life cycle and mating behavior Maturities | التكاثر | Spawnings | Egg(s) | Fecundities | Larvae

Ovoviviparous (Ref. 247). 10-20 young born at 30-42 cm (Ref. 26346); 10-16 young born at 30 cm TL (Ref.58048). Distinct pairing with embrace (Ref. 205).

المرجع الرئيسي Upload your references | مراجع | المنظم : Compagno, Leonard J.V. | المتعاونين

Compagno, L.J.V., 1984. FAO Species Catalogue. Vol. 4. Sharks of the world. An annotated and illustrated catalogue of shark species known to date. Part 1 - Hexanchiformes to Lamniformes. FAO Fish. Synop. 125(4/1):1-249. Rome, FAO. (Ref. 247)

IUCN Red List Status (Ref. 130435)

معرضة للخطر, انظر القائمة الحمراء للأتحاد الدولي للمحميات الطبيعية (VU) (A2bd+3d); Date assessed: 03 July 2017

CITES (Ref. 128078)

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

خطر للأنسان

Harmless

استخدامات بشرية

مصائد: غير مهمة تجارياً

FAO(مصائد: الأنتاج; publication : search) | FIRMS (Stock assessments) | FishSource | البحر حولنا

مزيد من المعلومات

Trophic ecology
عناصر الغذاء
Diet compositions
Food consumptions
Food rations
مفتريسات

Ecology
البيئة
Home ranges

Population dynamics
Growths
Max. ages / sizes
Length-weight rel.
Length-length rel.
الطول- الترددات
Mass conversions
Recruitments
Abundances

Life cycle
التكاثر
Maturities
Fecundities
Spawnings
Spawning aggregations
Egg(s)
Egg developments
Larvae
حركة انتقال اليرقات

Distribution
دول
مناطق الفاو
النظام البيئي
الظهور
مقدمة
BRUVS - Videos

Anatomy
Gill areas
دماغ
عظمة الأذن

Physiology
Body compositions
Nutrients
Oxygen consumptions
نوع السباحة
Swimming speeds
Visual pigment(s)
أصوات الأسماك
Diseases / Parasites
Toxicities (LC50s)

Genetics
جيني
Electrophoreses
Heritabilities

Human related
Aquaculture systems
ملامح تربية الأحياء المائية
سلالات
Ciguatera cases
Stamps, coins, misc.

Outreach
المتعاونين

Taxonomy
الأسماء الشائعة
مرادفات
الوصف الخارجي
قياسات المظهر الخارجي
صور

References
مراجع

أدوات

تقارير خاصة

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صفحة الملخص | نقطة بيانات | الأسماء الشائعة | صور

مصادر علي الأنترنت

Estimates based on models

Preferred temperature (Ref. 115969): 2.5 - 14.3, mean 5.3 (based on 3093 cells).

Phylogenetic diversity index (Ref. 82804): PD₅₀ = 1.0020 [Uniqueness, from 0.5 = low to 2.0 = high].

Bayesian length-weight: a=0.00372 (0.00141 - 0.00976), b=3.12 (2.89 - 3.35), in cm Total Length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245).

مستوى غذائي (Ref. 69278): 4.2 ±0.4 se; based on diet studies.

المرونه (Ref. 120179): منخفض, الحد الزمني الأدني لتضاعف عدد أفراد المجتمع 4.5-14 سنة (Fec=10-20).

Prior r = 0.27, 95% CL = 0.18 - 0.40, Based on 1 data-limited stock assessment.

Fishing Vulnerability (Ref. 59153): High to very high vulnerability (65 of 100).

Climate Vulnerability (Ref. 125649): Moderate vulnerability (38 of 100).

فئة السعر (Ref. 80766): Medium.

Dalatias licha (Bonnaterre, 1788)