(كوسه ها و سپرماهيان) (sharks and rays) >
Carcharhiniformes (Ground sharks) >
Atelomycteridae (Coloured catsharks)
Etymology: Schroederichthys: In honor of American ichthyologist William C. Schroeder (1895-1977), Woods Hole Oceanographic Institution, for his pioneering work (with Henry B. Bigelow) on cartilaginous fishes; ichthyos (Gr.), fish. (See ETYFish); bivius: bi-, from bis (L.), two; via (L.), way or passage, etymology not explained, perhaps referring to double-valved nostrils, with incurrent and excurrent apertures. (See ETYFish).
More on authors: Müller & Henle.
Environment: milieu / climate zone / depth range / distribution range
بوم شناسي
دريايي نزديك كف زي; تغييرات عمق 14 - 78 m (Ref. 244). Subtropical; 23°S - 56°S
Southeast Pacific and Southwest Atlantic: central Chile to the Straits of Magellan and Argentina.
Length at first maturity / Size / Weight / سن
Maturity: Lm ?, range 40 - ? cm
Max length : 70.0 cm TL جنس نر / بدون خواص جنسي; (Ref. 244)
A common inshore to offshore shark found on the continental shelf. Oviparous (Ref. 50449). Dental sexual dimorphism exists, with adult males having teeth at least twice as high as adult females as well as much longer and narrower mouths.
Life cycle and mating behavior
Maturities | تولید مثل | Spawnings | Egg(s) | Fecundities | توزاد ( لارو)
Oviparous, paired eggs are laid. Embryos feed solely on yolk (Ref. 50449). Sexual dimorphism is evident in dentition of male species (Ref. 49562). Males have longer teeth with fewer cusps than females (Ref. 51093) to make 'courtship biting' more effective (Ref. 49562).
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 2 - Carcharhiniformes. FAO Fish. Synop. 125(4/2):251-655. Rome: FAO. (Ref. 244)
وضعيت در فهرست قرمز IUCN (Ref. 130435)
خطر برای انسان ها
Harmless
استفاده انسانی
ماهي گيري – شيلات: از بی علاقه گی
ابزارها
گزارش های ويژه
بارگيری XML
منابع اينترنتي
Estimates based on models
Preferred temperature (Ref.
123201): 6.4 - 15.6, mean 10.6 °C (based on 202 cells).
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5312 [Uniqueness, from 0.5 = low to 2.0 = high].
Trophic level (Ref.
69278): 3.8 ±0.3 se; based on diet studies.
جهندگی (Ref.
120179): خیلی آهسته, كمينه زمان لازم براي دو برابر شدن جمعيت بيش از 14 سال (Fec=2).
Fishing Vulnerability (Ref.
59153): Moderate to high vulnerability (48 of 100).
Nutrients (Ref.
124155): Calcium = 27.1 [4.5, 147.7] mg/100g; Iron = 0.723 [0.192, 2.131] mg/100g; Protein = 16.1 [13.3, 20.4] %; Omega3 = 0.18 [0.08, 0.39] g/100g; Selenium = 19.3 [5.8, 54.7] μg/100g; VitaminA = 10.6 [3.7, 29.9] μg/100g; Zinc = 0.636 [0.303, 1.164] mg/100g (wet weight); based on
nutrient studies.
