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Orectolobiformes (Carpet sharks) >
Orectolobidae (Carpet or nurse sharks)
Etymology: Eucrossorhinus: eu (Gr.), very; Crossorhinus (=Orectolobus), previous genus, from krossos (Gr.), fringe or tassel, referring to tassel of dermal lobes fringing the head, and rhinus, an ancient name for sharks, from rhine (Gr.), rasp, alluding to their rasp-like skin, or rhinos, snout, referring to “lobe-like attachments from the nose” (translation, from Müller & Henle’s 1837 description of Crossorhinus). (See ETYFish); dasypogon: dasys (Gr.), hairy; pogon (Gr.), beard, referring to dense beard-like tassel of dermal lobes fringing the head. (See ETYFish).
More on author: Bleeker.
Environment: milieu / climate zone / depth range / distribution range
Sinh thái học
Biển Cùng sống ở rạn san hô; Mức độ sâu 2 - 50 m (Ref. 106604). Deep-water; 1°N - 23°S, 115°E - 155°E
Indo-West Pacific: eastern Indonesia, Papua New Guinea, and northern Australia (including Barrow Island, Western Australia). Questionable occurrence in Malaysia.
Bộ gần gũi / Khối lượng (Trọng lượng) / Age
Maturity: Lm ? range ? - ? cm
Max length : 366 cm TL con đực/không giới tính; (Ref. 90102); common length : 180 cm TL con đực/không giới tính; (Ref. 90102)
Các tia vây lưng cứng (tổng cộng) : 0; Tia cứng vây hậu môn: 0. Body with a reticular pattern of narrow dark lines (Ref. 13577). Caudal fin with its upper lobe hardly elevated above the body axis, with a strong terminal lobe and subterminal notch but no ventral lobe (Ref. 13577).
A little-known shark (Ref. 247) found on the continental shelf and offshore reefs (Ref. 6871). Probably feeds on bottom fishes and invertebrates (Ref. 13577, 43278); also known to eat nocturnal teleost fishes such as squirrelfish and soldierfish (Holocentridae) and sweepers (Pempheridae) (Ref. 43278). Ovoviviparous (Ref. 50449). Might bite in self-defense or when mistaking a human foot for its usual prey (Ref. 247). Its tough skin sometimes used for leather (Ref. 13577). The maximum length of 366 cm TL reported for this species is uncertain (Ref. 247, 90102).
Life cycle and mating behavior
Maturities | Sự tái sinh sản | Spawnings | Egg(s) | Fecundities | Ấu trùng
Ovoviviparous, embryos feed solely on yolk (Ref. 50449).
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)
Human uses
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Estimates based on models
Preferred temperature (Ref.
123201): 26.2 - 28.8, mean 27.8 °C (based on 294 cells).
Phylogenetic diversity index (Ref.
82804): PD
50 = 1.0002 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00389 (0.00180 - 0.00842), b=3.12 (2.94 - 3.30), in cm total length, based on all LWR estimates for this body shape (Ref.
93245).
Mức dinh dưỡng (Ref.
69278): 4.0 ±0.60 se; based on food items.
Thích nghi nhanh (Ref.
120179): thấp, thời gian nhân đôi của chủng quần tối thiểu là 4.5 - 14 năm (Fec assumed to be <100).
Fishing Vulnerability (Ref.
59153): Very high vulnerability (90 of 100).
Nutrients (Ref.
124155): Calcium = 1.57 [0.18, 7.23] mg/100g; Iron = 0.125 [0.027, 0.423] mg/100g; Protein = 19.4 [17.1, 21.6] %; Omega3 = 0.0936 [, ] g/100g; Selenium = 7.92 [2.19, 30.75] μg/100g; VitaminA = 13.4 [2.3, 84.0] μg/100g; Zinc = 0.248 [0.114, 0.523] mg/100g (wet weight);
