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Amblyraja - Вид в
Rajidae - - Классификация -
- Rajidae
- Rajiformes
- Elasmobranchii
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| Native range | All suitable habitat | Point map | Year 2050 |
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| This map was computer-generated and has not yet been reviewed. |
| Amblyraja georgiana AquaMaps Data sources: GBIF OBIS |
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Amblyraja georgiana
Picture by Reyes, P.
Pictures | Изображение на Google
Picture by Reyes, P.
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) > Rajiformes (Skates and rays) > Rajidae (Skates)
Etymology: Amblyraja: Greek, amblys = darkness + Latin, raja, -ae = ray (Raja sp.) (Ref. 45335).
Eponymy: This is a toponym referring to the fact that the holotype was caught in the coastal waters of South Georgia and was named after that island. (Ref. 128868), visit book page.
More on author: Norman.
Etymology: Amblyraja: Greek, amblys = darkness + Latin, raja, -ae = ray (Raja sp.) (Ref. 45335).
Eponymy: This is a toponym referring to the fact that the holotype was caught in the coastal waters of South Georgia and was named after that island. (Ref. 128868), visit book page.
More on author: Norman.
Environment: milieu / climate zone / depth range / distribution range экология
морской батидемерсальный; пределы глубины 20 - 350 m (Ref. 58839). Deep-water; 43°S - 74°S, 48°E - 23°W (Ref. 114953)
распространение страны | регионы FAO | Ecosystems | места находок | Point map | интродукции | Faunafri
Southeast Pacific: Chile (Ref. 27540). Southern Ocean: around South Georgia Island and on the ridge westward towards Black Rocks. Occasionally seen on the Scotia Ridge.
Size / Вес / Возраст
Found on continental and insular shelves, as well as upper slopes. Feeds mainly on small benthic invertebrates (Ref. 114953). Oviparous (Ref. 205). Reaches maturity at 80-90 cm TL; birth size at ca. 20 cm TL (Ref. 114953). Distinct pairing with embrace. Young may tend to follow large objects, such as their mother (Ref. 205). Eggs are oblong capsules with stiff pointed horns at the corners deposited in sandy or muddy flats (Ref. 205). Egg capsule measures 116.5 mm long and 80.0 mm wide (Ref. 41249). Utilized as fishmeal and possibly not utilized for human consumption due to extreme roughness of its squamation (Ref. 5159).
Life cycle and mating behavior половая зрелость | размножение | нерест | икра | Fecundity | личинки
Oviparous, paired eggs are laid. Embryos feed solely on yolk (Ref. 50449). Distinct pairing with embrace. Young may tend to follow large objects, such as their mother (Ref. 205). Eggs have horn-like projections on the shell (Ref. 205).
Основная ссылка
Upload your references | ссылки | координатор : McEachran, John | соавторы
McEachran, J.D. and K.A. Dunn, 1998. Phylogenetic analysis of skates, a morphologically conservative clade of elasmobranchs (Chondrichthyes: Rajidae). Copeia 1998(2):271-290. (Ref. 27314)
Статус Красного Списка МСОП (Ref. 130435: Version 2024-1)
Нехватка данных (DD) ; Date assessed: 08 February 2019
Угроза для людей
Harmless
Использование человеком
рыболовство: рыболовство как средство для существования
FAO(рыболовство: production; publication : search) | FishSource | Sea Around Us
дополнительная информация
Trophic ecology
пищевые объекты
состав пищи
потребление пищи
Food rations
хищники
пищевые объекты
состав пищи
потребление пищи
Food rations
хищники
Ecology
экология
Home ranges
экология
Home ranges
Population dynamics
Growth parameters
Max. ages / sizes
Length-weight rel.
Length-length rel.
Размерный состав
Mass conversion
пополнение
численность
Growth parameters
Max. ages / sizes
Length-weight rel.
Length-length rel.
Размерный состав
Mass conversion
пополнение
численность
Life cycle
размножение
половая зрелость
Fecundity
нерест
Spawning aggregations
икра
Развитие икры
личинки
динамика численности личинок
размножение
половая зрелость
Fecundity
нерест
Spawning aggregations
икра
Развитие икры
личинки
динамика численности личинок
Anatomy
жаберная область
Brain
Otolith
жаберная область
Brain
Otolith
Physiology
Body composition
Nutrients
Oxygen consumption
Swimming type
Swimming speed
Visual pigments
Fish sound
Diseases & Parasites
Toxicity (LC50s)
Body composition
Nutrients
Oxygen consumption
Swimming type
Swimming speed
Visual pigments
Fish sound
Diseases & Parasites
Toxicity (LC50s)
Genetics
генетика
Heterozygosity
наследуемость
генетика
Heterozygosity
наследуемость
Human related
Aquaculture systems
особенности рыбоводства
степень растяжения
Ciguatera cases
Stamps, coins, misc.
Aquaculture systems
особенности рыбоводства
степень растяжения
Ciguatera cases
Stamps, coins, misc.
инструменты
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ресурсы в Интернет
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Estimates based on models
Preferred temperature (Ref. 115969): -1.4 - 0.5, mean -0.6 (based on 28 cells).
Phylogenetic diversity index (Ref. 82804): PD50 = 0.5010 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00302 (0.00141 - 0.00645), b=3.24 (3.07 - 3.41), in cm Total Length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245).
Trophic level (Ref. 69278): 4.2 ±0.3 se; based on size and trophs of closest relatives
устойчивость к внешним воздействиям (Ref. 120179): низкий, минимальное время удвоения популяции 4.5-14 лет (Assuming tm>5).
Fishing Vulnerability (Ref. 59153): High to very high vulnerability (69 of 100).
Climate Vulnerability (Ref. 125649): Moderate vulnerability (38 of 100).