This website uses cookies to enhance your browsing experience and ensure the functionality of our site. For more detailed information about the types of cookies we use and how we protect your privacy, please visit our Privacy Information page.
×
Cookie Settings
This website uses different types of cookies to enhance your experience. Please select your preferences below:
Пластиножаберные (акулы и скаты) (sharks and rays) > Carcharhiniformes (Ground sharks) > Carcharhinidae (Requiem sharks)
Etymology: Negaprion:negatus (L.), to deny; prion (Gr.), saw, referring to lack of saw-like serrations on teeth cusps (See ETYFish); acutidens:acutus (L.), sharp or pointed; dens, from dentis (L.), tooth, probably referring to pyramid-like teeth (“dünnen spitzen Pyramiden”) (See ETYFish). More on author: Rüppell.
Окружающая среда: среда / климатическая зона / пределы глубины / диапазон распространения экология
морской; солоноватоводный ассоциированный с рифами; oceano-estuarine (Ref. 129182); пределы глубины 0 - 92 m (Ref. 244). Tropical; 30°N - 32°S, 32°E - 140°W (Ref. 244)
Indo-Pacific: Red Sea and South Africa (including Mauritius, Seychelles, Madagascar) to Philippines, north to Viet Nam, south to Australia. Also from Palau, Marshall Islands, and Tahiti. Recorded from Taiwan (Ref. 4868).
Длина при первой зрелости / Размер / Вес / Возраст
половая зрелость: Lm230.0, range 220 - 240 cm Max length : 380 cm TL самец/пол неопределен; (Ref. 5213)
колючие лучи спинного плавника (общее число) : 0; колючие лучи анального плавника: 0. A large, stocky, yellowish shark with a broad, blunt snout, narrow, smooth-cusped teeth in both jaws, and equal-sized dorsal fins (Ref. 5578). Yellowish brown above, paler below (Ref. 9997). With two nearly equally large dorsal fins (Ref. 37816). Body shape (shape guide): fusiform / normal.
Adults are found on continental and insular shelves and terraces (Ref. 244). And are common on coral reefs (Ref. 5578). Juveniles are confined to shallow inshore areas, with preference for sandy lagoons and turbid, mangrove swamps (Refs. 6871, 129182). Adults feed on smaller sharks, stingrays and on benthic bony fishes (Ref. 5578). Viviparous (Ref. 50449). Dangerous if provoked (Ref. 244). 1 to 11 of 45 cm young are born per litter (Ref. 1602). Meat is utilized fresh and dried salted for human consumption, fins for shark-fin soup base, and liver oil for vitamins (Ref. 244).
Viviparous, placental (Ref. 50449), 1-14 per litter (Ref. 6871). Gestation period 10-11 months (Ref. 5578; Ref.58048). Size at birth about 50 to 70 cm TL (Ref. 9997); 45-80 cm TL (Ref.58048). Distinct pairing with embrace (Ref. 205). Mating and pupping take place during late spring and early summer (Ref. 37816).
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)
Статус Красного Списка МСОП (Ref. 130435: Version 2025-2 (Global))
Физиология Состав тела Питательные вещества Потребление кислорода Тип плавания Скорость плавания Зрительные пигменты Звук рыбы Болезни и паразиты Токсичность (LC50s)
Предпочтительная температура (ссылка 123201): 24.7 - 29.1, mean 28.1 °C (based on 2034 cells).
Индекс филогенетического разнообразия (ссылка 82804): PD50 = 0.7500 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00490 (0.00233 - 0.01031), b=3.08 (2.91 - 3.25), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245).
Трофический уровень (ссылка 69278): 4.1 ±0.6 se; based on diet studies.
устойчивость к внешним воздействиям (ссылка 120179): очень низкий, минимальное время удвоения популяции более 14 лет (Fec=1).
Уязвимость рыбной ловли (Ref. 59153): Very high vulnerability (90 of 100). 🛈
