Carcharhinus dussumieri, Whitecheek shark : fisheries

Carcharhinus dussumieri (Müller & Henle, 1839)

Whitecheek shark
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Carcharhinus dussumieri   AquaMaps   Data sources: GBIF OBIS
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Пластиножаберные (акулы и скаты) (sharks and rays) > Carcharhiniformes (Ground sharks) > Carcharhinidae (Requiem sharks)
Etymology: Carcharhinus: Greek, karcharos = sharpen + Greek, rhinos = nose (Ref. 45335);  dussumieri: Named for Jean-Jacques Dussumier (1792-1883), a French voyager who collected a large number of zoological specimens in the Indian Ocean between 1816 and 1840 and the collector of one of the syntypes (=a paralectotype).  More on authors: Müller & Henle.

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

; морской ассоциированный с рифами; пределы глубины ? - 100 m (Ref. 89954).   Tropical; 30°N - 5°N, 49°E - 84°E

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Indian Ocean: from at least the Persian Gulf to India. Complete distributional range is unknown.

Length at first maturity / Size / Вес / Возраст

Maturity: Lm 64.2, range 60 - 75 cm
Max length : 121 cm TL самец/пол неопределен; (Ref. 114871)

Краткое описание морфология | морфометрия

позвонки: 113 - 129. This small species is distinguished by the following characters: snout relatively long and narrowly rounded to almost pointed; upper anterior teeth are oblique and blade-like, coarsely serrated, with lateral margin deeply notched and with several large and serrated basal cusplets; lower anterior teeth are narrower, slightly oblique, lateral margins notched and usually without large basal serrae, finely serrated; total tooth row counts 27-29/24-30, or 52-59; interdorsal space often without a ridge, 17.9-20.8% TL; first dorsal fin relatively low and not falcate, origin over middle of pectoral-fin inner margin, length 14.3-16.2% TL, 1.4-1.6 times height, inner margin 2.2-2.5 in base; second dorsal fin is much smaller, broadly triangular, height 32-37% of first dorsal-fin height, origin about opposite anal fin origin; anal fin is slightly falcate, height 1.0-1.2 times second dorsal-fin height, base 0.9-1.1 times second dorsal fin base; body colour pale brownish dorsally, whitish ventrally; second dorsal fin with a black blotch on upper third of fin, not extending onto upper surface of body and very well defined from ground colour, while other fins mostly plain; total vertebral counts 123-138; monospondylous precaudal counts 42-48; diplospondylous precaudal counts 20; diplospondylous caudal counts 59-70; precaudal counts 62-68 (Ref. 89954).

биология     глоссарий (например epibenthic)

A common but little-known shark found on the continental and insular inshore areas (Ref. 9997). Feeds mainly on fishes but also on cephalopods, and crustaceans (Ref. 6871). Viviparous (Ref. 50449), with a yolk-sac placenta; gives birth to litters of 1-4 (usually 2) pups (Ref. 58048). Pregnant females (79-100.7 cm TL) that were caught contained 2-5 late-term embryos between 32-38.7 cm TL, thus birth size is presumed to be around 37-39 cm TL. From more than 1000 market specimens (in Kuwait, Qatar and Abu Dhabi), size of males and females range from 36-85 cm TL and 36-100.7 cm TL, respectively, with males reaching maturity between 63-80 cm TL (Ref. 89954). Taken in artisanal and small-scale commercial fisheries and marketed for human consumption (Ref. 244). Fins also utilized (Ref. 6871).

Life cycle and mating behavior половая зрелость | размножение | нерест | икра | Fecundity | личинки

Viviparous, placental (Ref. 50449). With 2 to 4 pups in a litter; 37-38 cm at birth (Ref. 244). Both male and females mature at about 70 cm (Ref. 6871). Distinct pairing with embrace (Ref. 205). No distinct seasonal reproductive cycle apparent, instead continuously breeding with most mature females pregnant or spent at any one time (Ref.58048).

Основная ссылка Upload your references | ссылки | координатор : Compagno, Leonard J.V. | соавторы

White, W.T., 2012. A redescription of Carcharhinus dussumieri and C. sealei, with resurrection of C. coatesi and C. tjutjot as valid species (Chondrichthyes: Carcharhinidae). Zootaxa 3241:1-34. (Ref. 89954)

Статус Красного Списка МСОП (Ref. 123251)

  Под угрозой исчезновения (EN) (A2d+3d); Date assessed: 07 August 2018

CITES (Ref. 118484)

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Угроза для людей

  Harmless (Ref. 9997)





Использование человеком

рыболовство: коммерческий
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дополнительная информация

народные названия
синонимы
обмен веществ
хищники
экотоксикология
размножение
половая зрелость
нерест
Spawning aggregation
Fecundity
икра
Развитие икры
Возраст/Размеры
рост
Зависимость между длиной и массой тела
Зависимость между длинами
Размерный состав
морфометрия
морфология
личинки
динамика численности личинок
пополнение
численность
ссылки
аквакультура (рыбоводство)
особенности рыбоводства
степень растяжения
генетика
частоты аллелей
наследуемость
болезни
обработка
Mass conversion
соавторы
изображения
Stamps, Coins Misc.
звуки
Ciguatera
скорость
тип плавания
жаберная область
Otoliths
мозг
зрение

инструменты

Специальные отчеты

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Estimates based on models

Preferred temperature (Ref. 115969): 24.2 - 28.5, mean 27.1 °C (based on 230 cells).
Phylogenetic diversity index (Ref. 82805):  PD50 = 0.5000   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00324 (0.00213 - 0.00492), b=3.09 (2.97 - 3.21), in cm total length, based on LWR estimates for this species & Genus-body shape (Ref. 93245).
Trophic level (Ref. 69278):  3.9   ±0.0 se; based on diet studies.
Generation time: 4.5 ( na - na) years. Estimated as median ln(3)/K based on 2 growth studies.
устойчивость к внешним воздействиям (Ref. 120179):  очень низкий, минимальное время удвоения популяции более 14 лет (Fec=2).
Уязвимость (Ref. 59153):  High vulnerability (56 of 100) .
Категория цены (Ref. 80766):   Medium.