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Arcida |
Philobryidae
Environment: milieu / climate zone / depth range / distribution range
экология
; пределы глубины 0 - 1890 m (Ref. 124196). Polar; 53°S - 79°S, 180°W - 180°E
Southwest Atlantic and the Antarctic.
Length at first maturity / Size / Вес / Возраст
Maturity: Lm ?, range 1 - ? cm Max length : 0.6 cm TL самец/пол неопределен; (Ref. 7875); common length : 0.3 cm TL самец/пол неопределен; (Ref. 7875)
Life cycle: Fertilization occurs in the mantle cavity after the release of mature eggs in the early austral summer or late spring. Females dominate males in number during summer which is when females are brooding (early stage) nonshelled embryos in the infrabranchial chamber. Shell development begins during late summer and early autumn with simultaneous development of ova, i.e., females may simultaneously carry eggs and brood larvae. Males dominate females in number during late autumn and early winter, it is also when the ova are fully developed. Shelled juveniles are released in late winter to early summer. Egg and embryo development takes 2 years (Refs. 833, 72610, 105049).
Основная ссылка
ссылки | координатор | соавторы
SAUP Database. 2006. (Ref. 356)
Статус Красного Списка МСОП (Ref. 130435)
Статус СИТЕС (Ref. 108899)
Not Evaluated
Not Evaluated
Угроза для людей
Harmless
Использование человеком
| FishSource |
инструменты
дополнительная информация
Возраст/РазмерыростЗависимость между длиной и массой телаЗависимость между длинамиморфологияличинкичисленность
ресурсы в Интернет
Estimates based on models
Preferred temperature
(Ref.
115969): -1.5 - 1.4, mean -0.5 (based on 473 cells).
устойчивость к внешним воздействиям
низкий, минимальное время удвоения популяции 4.5-14 лет (K=0.09-0.11).
Уязвимость
Moderate to high vulnerability (55 of 100).
Категория цены
Unknown.
