You can sponsor this page

Glaucostegus cemiculus (GeoffroySaint-Hilaire, 1817)

Blackchin guitarfish
Добавить Ваши наблюдения в Fish Watcher
Native range | All suitable habitat | Point map | Year 2050
This map was computer-generated and has not yet been reviewed.
Glaucostegus cemiculus   AquaMaps   Data sources: GBIF OBIS
Загрузить свой Фото и Видео
Pictures | Изображение на Google
  • Image of Glaucostegus cemiculus (Blackchin guitarfish)
    Glaucostegus cemiculus
    Picture by FishBase
  • Image of Glaucostegus cemiculus (Blackchin guitarfish)
    Glaucostegus cemiculus
    Juvenile picture by Wirtz, P.


Sierra Leone 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/sl.html
National Fisheries Authority:
Occurrences: Occurrences Point map
Main Ref: McEachran, J.D. and C. Capapé, 1984
National Database:

Common names from other countries

Классификация / Names народные названия | синонимы | Catalog of Fishes(род, виды) | ITIS | CoL | WoRMS | Cloffa

Пластиножаберные (акулы и скаты) (sharks and rays) > Rhinopristiformes (Shovelnose rays) > Glaucostegidae (Giant guitarfishes)
Etymology:

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

морской; солоноватоводный демерсальный; пределы глубины 9 - 100 m.   Subtropical; 42°N - 19°S, 19°W - 38°E (Ref. 114953)

распространение страны | регионы FAO | Ecosystems | места находок | Point map | интродукции | Faunafri

Eastern Atlantic: northern Portugal to Angola, including the Mediterranean Sea.

Length at first maturity / Size / Вес / Возраст

Maturity: Lm 158.5, range 153 - 164 cm
Max length : 242 cm TL самец/пол неопределен; (Ref. 40637); common length : 150 cm TL самец/пол неопределен; (Ref. 3710); наибольший вес (опубликованные данные): 49.9 kg (Ref. 40637)

Краткое описание определительные ключи | морфология | морфометрия

позвонки: 68 - 73. This large to very large species has a plain beige to brownish wedge-shaped disc; long and rather broad triangular snout with a broadly rounded rostral cartilage at its tip and wide oblique nostrils with a narrow anterior opening; disc thickened centrally, length 1.2-1.3 times its width, anterior margins slightly undulate, often weakly concave before broadly rounded outer corner; snout moderately acute, its angle 59-63°, tip narrowly rounded not extended forward as a distinct lobe; large orbit, length 5-6 times in preorbital length, 1.5-2 in interorbital space; rostral ridges are narrowly separated posteriorly and almost joined anteriorly; 2 fleshy spiracular folds, with innermost fold smaller; upper jaw with 62-72 tooth rows; large and oblique nostrils, its length 1.4 in internasal width, ca 81 nasal lamellae, anterior nasal flaps are confined to anterior margin of nostril; rough skin covered entirely with small denticles; well-developed thorns, usually along edge of rostral cartilage and small patches around orbits and above spiracles; each shoulders with 1-3 thorns that persist in adults, a median row of enlarged thorns extending from nape to first dorsal fin, a few thorns between dorsal fin; long tail ca 1.5 times its disc length; dorsal fins are large and widely spaced, ca. 2.1 times base length of first dorsal fin, apices narrowly rounded; pectoral fin radials 68-73; 204-212 total vertebrae (Ref. 114953).

биология     глоссарий (например epibenthic)

A coastal and benthic species found on sandy and muddy bottoms, intertidal zone to at least 80 m depth. Feeds mainly on benthic crustaceans and small fishes. Maximum length would probably reach up to 265 cm TL, common at about 200 cm TL. Males mature at 138-154 cm TL, females at 153-164 cm TL. In the Mediterranean Sea, males mature at smaller size, about 100-110 cm TL and females at about 110 cm TL. Size at birth about 34 cm TL. Produces litters up to 20 pups (more common 6-7 pups) (Ref. 114953). Ovoviviparous, one or two litters per year, of 4-6 embryos.

Life cycle and mating behavior Maturities | размножение | Spawnings | Egg(s) | Fecundities | личинки

Exhibit ovoviparity (aplacental viviparity), with embryos feeding initially on yolk, then receiving additional nourishment from the mother by indirect absorption of uterine fluid enriched with mucus, fat or protein through specialised structures (Ref. 50449). One or two litters per year, of 4-6 embryos (Ref. 6675).

Основная ссылка Upload your references | ссылки | координатор | соавторы

Bauchot, M.-L., 1987. Raies et autres batoides. p. 845-886. In W. Fischer, M.L. Bauchot and M. Schneider (eds.) Fiches FAO d'identificationpour les besoins de la pêche. (rev. 1). Mèditerranée et mer Noire. Zone de pêche 37. Vol. II. Commission des Communautés Européennes and FAO, Rome. (Ref. 3261)

Статус Красного Списка МСОП (Ref. 130435)

  В критическом состоянии (CR) (A2d); Date assessed: 03 December 2018

CITES (Ref. 128078)


CMS (Ref. 116361)

Not Evaluated

Угроза для людей

  Harmless




Использование человеком

рыболовство: не имеет хозяйственного значения; объект спортивного рыболовства: да
FAO(Publication : search) | FishSource | Sea Around Us

дополнительная информация

Trophic ecology
пищевые объекты
Diet compositions
Food consumptions
Food rations
хищники
Ecology
экология
Home ranges
Population dynamics
Growths
Max. ages / sizes
Length-weight rel.
Length-length rel.
Размерный состав
Mass conversions
Recruitments
Abundances
Life cycle
размножение
Maturities
Fecundities
Spawnings
Spawning aggregations
Egg(s)
Egg developments
личинки
динамика численности личинок
Distribution
страны
регионы FAO
Ecosystems
места находок
интродукции
BRUVS - Videos
Anatomy
Gill areas
мозг
Otoliths
Physiology
Body compositions
Nutrients
Oxygen consumptions
Swimming type
Swimming speeds
Visual pigment(s)
звуки, издаваемые рыбами
Diseases / Parasites
Toxicities (LC50s)
Genetics
генетика
Electrophoreses
Heritabilities
Human related
Aquaculture systems
особенности рыбоводства
степень растяжения
Ciguatera cases
Stamps, coins, misc.
Outreach
соавторы
References
ссылки

инструменты

Специальные отчеты

Скачать в формате XML

ресурсы в Интернет

Estimates based on models

Preferred temperature (Ref. 115969): 19.2 - 27.9, mean 25.4 (based on 94 cells).
Phylogenetic diversity index (Ref. 82804):  PD50 = 0.5156   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00372 (0.00145 - 0.00950), b=3.09 (2.87 - 3.31), in cm Total Length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245).
Trophic level (Ref. 69278):  4.0   ±0.70 se; based on food items.
устойчивость к внешним воздействиям (Ref. 120179):  очень низкий, минимальное время удвоения популяции более 14 лет (Fec=4).
Fishing Vulnerability (Ref. 59153):  High vulnerability (55 of 100).
Категория цены (Ref. 80766):   Low.