Gastropoda |
Trochida |
Trochidae
Environment: milieu / climate zone / пределы глубины / distribution range
экология
; пределы глубины 0 - 7 m (ссылка 83435). Tropical; 26°N - 6°N, 89°W - 57°W
Western Central Atlantic.
Length at first maturity / Size / Weight / Возраст
половая зрелость: Lm ?, range 1 - 3.4 cm Max length : 18.0 cm SHW самец/пол неопределен; (ссылка 105349); common length : 10.0 cm TL самец/пол неопределен; (ссылка 355)
Shell large, heavy, conical, with rounded shoulders. Umbilicus deep and round, operculum multispiral, circular. Colour: purple-black on a whitish background; aperture white, internally nacreous; operculum iridescent brown.
Stocks have been locally extirpated or are diminishing due to over exploitation (Ref. 355). Shallow subtidal, on rocks and shell rubble (Ref. 355). They are also found in intertidal and offshore coral reefs, particularly on algae, boulder, and coral habitats (Ref. 83934). Herbivore-detritivore. Most feeding seems to occur at night and early morning. Feeds on a wide variety of algae, sand and detritus (Ref. 105349).
Broadcast spawners. Spawning occurs during lunar period. Females lay eggs in ribbons or jelly masses in the substratum, after the males have released their sperm (Ref. 105346). Males don't have penis (Ref. 105349). Life cycle: Embryos develop into planktonic trocophore larvae and later into juvenile veligers before becoming fully grown adults (Ref. 833).
Основная ссылка
ссылки | координатор | соавторы
Leal, J.H. 2003 Gastropods. p. 99-147. In Carpenter, K.E. (ed.). The living marine resources of the Western Central Atlantic. Volume 1: Introduction, molluscs, crustaceans, hagfishes, sharks, batoid fishes, and chimaeras. FAO Species Identification Guide for Fishery Purposes and American Society of Ichthyologists and Herpetologists Special Publication No. 5. 1600p. (ссылка 355)
Статус Красного Списка МСОП
(ссылка 130435: Version 2025-1)
Статус СИТЕС (ссылка 108899)
Not Evaluated
CMS (ссылка 116361)
Not Evaluated
Угроза для людей
Использование человеком
рыболовство: коммерческий
| FishSource | Sea Around Us
инструменты
дополнительная информация
PhysiologyOxygen consumption
Human RelatedStamps, coins, misc.
ресурсы в Интернет
Estimates based on models
Preferred temperature
(Ref.
115969): 26.8 - 28.2, mean 27.7 (based on 344 cells).
устойчивость к внешним воздействиям
средний (среднего размера), минимальное время удвоения популяции 1.4-4.4 года (K=0.19-0.2).
Fishing Vulnerability
Low to moderate vulnerability (31 of 100).
Категория цены
Unknown.
Nutrients : Calcium = 126 [75, 177] mg/100g; Iron = 4.79 [1.67, 7.92] mg/100g; Protein = 15.9 [14.8, 16.9] %; Omega3 = 0.331 [0.263, 0.400] g/100g; Selenium = 57.8 [48.5, 67.2] μg/100g; VitaminA = 0 μg/100g; Zinc = 1.97 [0.92, 3.02] mg/100g (wet weight); based on
nutrient studies.
